NOVA


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents



us-gaap:CommonStockValue
us-gaap:ConsolidatedEntities

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization

us-gaap:CostsAndExpenses

us-gaap:GainsLossesOnExtinguishmentOfDebt
dei:LegalEntity, us-gaap:LongtermDebtType

us-gaap:GeneralAndAdministrativeExpense

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaid

us-gaap:InterestExpenseDebt

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:OperatingIncomeLoss

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ProfitLoss

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService

us-gaap:Assets
us-gaap:ConsolidatedEntities

us-gaap:Liabilities
us-gaap:ConsolidatedEntities

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:ConsolidatedEntities

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities

us-gaap:AssetsCurrent
us-gaap:ConsolidatedEntities

us-gaap:Cash
us-gaap:ConsolidatedEntities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:ConsolidatedEntities

us-gaap:AccountsReceivableNetCurrent
us-gaap:ConsolidatedEntities

us-gaap:InventoryNet
us-gaap:PublicUtilitiesInventory

us-gaap:OtherAssetsCurrent
us-gaap:ConsolidatedEntities

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

us-gaap:Goodwill
us-gaap:BusinessAcquisition

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent
us-gaap:ConsolidatedEntities

us-gaap:AccountsPayableCurrent
us-gaap:ConsolidatedEntities

us-gaap:AccruedLiabilitiesCurrent
us-gaap:ConsolidatedEntities

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LiabilitiesCurrent
us-gaap:ConsolidatedEntities

us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherLiabilitiesCurrent
us-gaap:ConsolidatedEntities

us-gaap:LongTermDebt
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LongTermDebtNoncurrent
dei:LegalEntity
us-gaap:DeferredFinanceCostsNoncurrentNet
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:LongtermDebtType

us-gaap:MinorityInterest

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:CumulativeEffectPeriodOfAdoption
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue
us-gaap:ConsolidatedEntities

us-gaap:AdditionalPaidInCapitalCommonStock
us-gaap:ConsolidatedEntities

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:ConsolidatedEntities

us-gaap:MinorityInterest

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:AmortizationOfFinancingCosts

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss

us-gaap:ProfitLoss

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquireInvestments

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateStatedPercentage
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
a12344345:AccruedInvestmentIncomeReceivableWriteOff

a12344345:AssetRetirementObligationOther
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
a12344345:BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuableAsContingentConsideration
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
a12344345:BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuedAtClosing

a12344345:ChangeInAccountsPayableAndAccruedExpensesRelatedToFinancingCosts

a12344345:ChangeInAccountsPayableAndAccruedExpensesRelatedToPaymentsForInvestments

a12344345:ChangeInCapitalExpendituresIncurredButNotYetPaid
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
a12344345:DebtInstrumentDiscountRate
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
a12344345:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsRealizedGainLossNet

a12344345:DistributionsToRedeemableNoncontrollingInterests

a12344345:FinanceReceivablesAllowanceForCreditLossOtherNet

a12344345:NoncontrollingInterestDecreaseFromCostsRelatedToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

a12344345:NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders
dei:LegalEntity, us-gaap:StatementClassOfStock
dei:LegalEntity, us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType

a12344345:NumberOfCustomers

a12344345:OperationsAndMaintenanceExpense

a12344345:PaymentsForOtherCommitments

a12344345:PaymentsOfCostsRelatedToNoncontrollingInterests

a12344345:PaymentsOfDebtDiscounts

a12344345:ProceedsFromStateUtilityRebates

a12344345:ReallocationOfAssetBasis
us-gaap:StatementEquityComponents

a12344345:RedeemableNoncontrollingInterestReallocationOfBasis
us-gaap:SubsidiarySaleOfStock
a12344345:SaleOfStockIssuanceCostsOfferingExpense
us-gaap:SubsidiarySaleOfStock
a12344345:SaleOfStockIssuanceCostsUnderwriterDiscountsAndCommissions

a12344345:TransfersOfInventoryToPropertyAndEquipmentNetAndCustomerNotesReceivable

nova:APICCappedCallTransaction
us-gaap:StatementEquityComponents

nova:AccountsReceivableAllowanceForCreditLossOtherNet

nova:AssetRetirementObligationOther
us-gaap:BusinessAcquisition
nova:BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuableAsContingentConsideration
us-gaap:BusinessAcquisition
nova:BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuedAtClosing

nova:CapitalCommitmentsFromInvestors

nova:ChangeInAccountsPayableAndAccruedExpensesRelatedToPaymentsForInvestments

nova:ChangeInCapitalExpendituresIncurredButNotYetPaid
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
nova:DebtInstrumentDiscountRate
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
nova:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsRealizedGainLossNet

nova:DistributionsToRedeemableNoncontrollingInterests

nova:FinanceReceivablesAllowanceForCreditLossOtherNet

nova:NoncontrollingInterestDecreaseFromCostsRelatedToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents
dei:LegalEntity
nova:NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders
dei:LegalEntity, us-gaap:StatementClassOfStock
dei:LegalEntity, us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType

nova:NumberOfCustomers

nova:OperatingLeasesLeaseholdImprovementsReimbursements

nova:OperationsAndMaintenanceExpense

nova:PaymentsForOtherCommitments

nova:PaymentsOfCostsRelatedToNoncontrollingInterests

nova:PaymentsOfDebtDiscounts

nova:ProceedsFromStateUtilityRebates

nova:ReallocationOfAssetBasis
us-gaap:StatementEquityComponents

nova:RedeemableNoncontrollingInterestReallocationOfBasis

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments
us-gaap:StatementEquityComponents

us-gaap:AllowanceForDoubtfulAccountsReceivableRecoveries

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs

us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AssetRetirementObligationAccretionExpense

us-gaap:AssetRetirementObligationLiabilitiesIncurred
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferred1
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferredLiabilitiesIncurred

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:CostOfGoodsAndServicesSoldDepreciation

us-gaap:DebtConversionConvertedInstrumentAmount1
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentRedemptionPricePercentage
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed

us-gaap:Depreciation
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs

us-gaap:GainLossOnSalesOfAssetsAndAssetImpairmentCharges

us-gaap:IncomeLossIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities

us-gaap:InvestmentIncomeNonoperating
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:LeaseCost
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:LongTermDebtWeightedAverageInterestRateOverTime
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyAccrualPayments
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyAccrualProvision
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk
us-gaap:LossOnDerivativeInstrumentsPretax

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
us-gaap:StatementEquityComponents

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:PaidInKindInterest

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfStockIssuanceCosts

us-gaap:PaymentsToMinorityShareholders

us-gaap:ProceedsFromCollectionOfNotesReceivable

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfOtherLongTermDebt

us-gaap:ProceedsFromMinorityShareholders

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForLeaseLosses

us-gaap:ProvisionForLoanLossesExpensed
dei:LegalEntity
us-gaap:RepaymentsOfDebt
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:SubsequentEventType

us-gaap:RepaymentsOfNotesPayable

us-gaap:RepaymentsOfOtherLongTermDebt
us-gaap:SubsidiarySaleOfStock
us-gaap:SaleOfStockConsiderationReceivedOnTransaction
us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock
us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1

us-gaap:ShortTermLeaseCost

us-gaap:StockholdersEquityOther
us-gaap:StatementEquityComponents

us-gaap:TemporaryEquityOtherChanges

us-gaap:UnrealizedGainLossOnDerivatives
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

us-gaap:UnrealizedGainLossOnHybridInstrumentNet

us-gaap:VariableLeaseCost

a12344345:AccruedExpenseInventory

a12344345:ContractualObligationToBePaidAfterYearFour
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
a12344345:DebtInstrumentEquityComponentDebtIssuanceCostsNoncurrentNet

a12344345:DeferredReceivablesCurrent
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk
a12344345:DerivativeNotionalAmountSettled

a12344345:ExclusivityAndOtherBonusArrangementsWithDealersNet

a12344345:FinancingReceivableAfterAllowanceForCreditLossOtherCurrent

a12344345:FinancingReceivableConstructionInProgress

a12344345:FiniteLivedAssetsAmortizationExpenseAfterYearThree

a12344345:LeaseLiability

a12344345:LeaseLiabilityCurrent

a12344345:LeaseRightOfUseAsset

a12344345:LesseeOperatingLeaseLeaseholdIncentive

a12344345:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour
dei:LegalEntity, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:CreditFacility, us-gaap:LongtermDebtType
a12344345:LineOfCreditObligationCap
us-gaap:ConsolidatedEntities
a12344345:LongtermDebtExcludingCurrentMaturitiesandRelatedParties
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType
a12344345:LongtermDebtGrossCurrent
dei:LegalEntity, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType
a12344345:LongtermDebtGrossNoncurrent
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:LongtermDebtType

a12344345:NonPerformanceFee
us-gaap:OtherCommitments
a12344345:OtherCommitmentToBePaidAfterYearFour

a12344345:OtherCurrentAssetAllowance
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
a12344345:PaidInKindInterestNoncurrent

a12344345:PrepaidInventory

a12344345:RestrictedCashUninsured

a12344345:SolarEnergyEquipmentNotYetPlacedInService

nova:AccruedExpenseInventory
us-gaap:BusinessAcquisition
nova:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAccruedLiabilities
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
nova:DebtInstrumentPurchasePriceNetOfDiscount

nova:DeferredReceivablesCurrent
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk
nova:DerivativeNotionalAmountSettled

nova:ExclusivityAndOtherBonusArrangementsWithDealersNet

nova:FinancingReceivableAfterAllowanceForCreditLossOtherCurrent

nova:FinancingReceivableConstructionInProgress

nova:FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour

nova:LeaseLiability

nova:LeaseLiabilityCurrent

nova:LeaseRightOfUseAsset
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType
nova:LongtermDebtGrossCurrent
dei:LegalEntity, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType
nova:LongtermDebtGrossNoncurrent
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:LongtermDebtType

nova:OtherCurrentAssetAllowance

nova:PrepaidInventory

nova:SolarEnergyEquipmentNotYetPlacedInService
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:AccruedInvestmentIncomeReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForNotesAndLoansReceivableCurrent

us-gaap:AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries

us-gaap:AssetRetirementObligationsNoncurrent
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet

us-gaap:CashUninsuredAmount

us-gaap:ContractWithCustomerAssetNetNoncurrent

us-gaap:ContractWithCustomerLiability
us-gaap:ProductOrService

us-gaap:ContractualObligation

us-gaap:ContractualObligationDueInFifthYear

us-gaap:ContractualObligationDueInFourthYear

us-gaap:ContractualObligationDueInNextTwelveMonths

us-gaap:ContractualObligationDueInSecondYear

us-gaap:ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:LongtermDebtType
dei:LegalEntity
us-gaap:DebtInstrumentUnamortizedDiscountNoncurrent
dei:LegalEntity, us-gaap:CreditFacility
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetInterestCarryforward

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsInvestments

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness

us-gaap:DeferredTaxLiabilitiesInvestments

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeAssets

us-gaap:DerivativeAssetsNoncurrent
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeNet
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeLiabilities
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNotionalAmount
us-gaap:DerivativeInstrumentRisk
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:FairValueByLiabilityClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinancingReceivableAllowanceForCreditLosses

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing

us-gaap:FinancingReceivableRecordedInvestmentCurrent

us-gaap:FinancingReceivableRecordedInvestmentPastDue
us-gaap:FinancingReceivablesPeriodPastDue

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:InterestPayableCurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:LongTermDebtFairValue
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:FairValueByMeasurementBasis

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyAccrualAtCarryingValue

us-gaap:LossContingencyAccrualCarryingValueCurrent
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyAccrualCarryingValueNoncurrent

us-gaap:NotesAndLoansReceivableNetCurrent
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:NotesAndLoansReceivableNetNoncurrent
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:NotesPayable
us-gaap:FairValueByMeasurementBasis
us-gaap:NotesReceivableFairValueDisclosure

us-gaap:NotesReceivableGross
us-gaap:FinancialInstrumentPerformanceStatus
us-gaap:FinancingReceivablesPeriodPastDue

us-gaap:NumberOfStatesInWhichEntityOperates

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards

us-gaap:OtherAssetsMiscellaneousCurrent

us-gaap:OtherAssetsMiscellaneousNoncurrent

us-gaap:OtherCommitment
us-gaap:OtherCommitments
us-gaap:OtherCommitments
us-gaap:OtherCommitmentDueInFifthYear
us-gaap:OtherCommitments
us-gaap:OtherCommitmentDueInFourthYear
us-gaap:OtherCommitments
us-gaap:OtherCommitmentDueInNextTwelveMonths
us-gaap:OtherCommitments
us-gaap:OtherCommitmentDueInSecondYear
us-gaap:OtherCommitments
us-gaap:OtherCommitmentDueInThirdYear
us-gaap:OtherCommitments
us-gaap:OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear

us-gaap:OtherPrepaidExpenseCurrent

us-gaap:OtherReceivablesNetCurrent
us-gaap:ConsolidatedEntities

us-gaap:OtherSundryLiabilitiesCurrent

us-gaap:PurchaseObligation

us-gaap:PurchaseObligationDueInNextTwelveMonths

us-gaap:PurchaseObligationDueInSecondYear

us-gaap:PurchaseObligationDueInThirdYear

us-gaap:PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear

us-gaap:RedeemableNoncontrollingInterestEquityCarryingAmount

us-gaap:RestrictedCash
us-gaap:RestrictedCashAndCashEquivalentsCashAndCashEquivalents

us-gaap:RestrictedCashCurrent

us-gaap:RestrictedCashNoncurrent

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:TaxCreditCarryforwardAmount
us-gaap:TaxCreditCarryforward

Plots across concepts


IncomeStatement
Net Income Loss
Expenses
Income Tax Expense Benefit
Balance Sheet
Goodwill
Assets
Operating Lease Right Of Use Asset
Current Assets
Accounts Receivable Net Current
NonCurrent Assets
Goodwill
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Operating Lease Liability Noncurrent
Stockholders Equity
Retained Earnings Accumulated Deficit
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Net Income Loss
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Proceeds From Payments For Other Financing Activities
Shares
Weighted Average Number Of Share Outstanding Basic And Diluted
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:CommonStockValue ██▆▃▁▁▁▁0.0110.0110.010.0090.0080.0080.0080.008NANA0.0NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 111.973338NANANA84.033278NANANANANANANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 111.973338NANANA84.033278NANANANANANANANANA
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted NA106.35922NA87.76871284.03327884.001151NA60.8901298.6365988.635527NA8.6345418.634455NA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities a12344345:ConvertibleSeniorNotesNANANA14.97067810.259544.230768NANA0.00.0NANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities nova:ConvertibleSeniorNotesNA1.682132NANANA4.230768NANANANANANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:ConvertibleDebt8.151172NANANA10.25954NANANANANANANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:EmployeeStockOption▁█4.7076974.90279NA6.0067916.6509945.872563NA5.2774144.3236584.471009NA4.643754.322366NA
us-gaap:EarningsPerShareBasic -0.57NANANA-0.3NANANANANANANANANA
us-gaap:EarningsPerShareDiluted -0.57NANANA-0.3NANANANANANANANANA
us-gaap:EarningsPerShareBasicAndDiluted NA-0.31-0.96-0.73-0.3-0.85-0.21-0.62-7.32-5.87-6.14-2.07-2.69-4.83
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization █▂▃▂▅▂▂▂▂▁▁▁▁4.9961.2341.4321.4032.8691.0430.9631.1861.0760.6520.5330.6140.448NA
us-gaap:CostsAndExpenses █▆▅▄▄▃▃▃▂▂▂▁▁▁80.89964.58256.00248.52847.93344.13542.76942.51337.32231.22237.62327.02526.52826.936
us-gaap:GainsLossesOnExtinguishmentOfDebt -9.824NA-92.051-50.7210.0NA0.00.0-10.645NA0.00.00.0NA
 us-gaap:GainsLossesOnExtinguishmentOfDebt dei:LegalEntity,us-gaap:LongtermDebtType nova:HeliosIssuerLLC,us-gaap:AssetBackedSecurities-9.8NANANANANANANANANANANANANA
us-gaap:GeneralAndAdministrativeExpense █▇▄▄▄▄▃▄▃▂▂▁▁48.33642.3230.57328.54928.13327.89327.00228.50923.79418.68118.32717.1715.578NA
us-gaap:IncomeTaxExpenseBenefit NANA0.0050.1760.00.00.00.00.00.00.00.00.0NA
us-gaap:IncomeTaxesPaid NANA0.1230.0580.00.00.00.00.00.00.00.0NANA
us-gaap:InterestExpenseDebt ▆▁▃▄▄█▁▄▄▄▃▁▁50.1098.05126.77629.95430.53267.3188.16930.88437.3131.66126.4599.41610.724NA
us-gaap:InterestPaidNet ▅▇▄█▃▆▁▆▁▄▂▄20.09928.1818.77130.58213.10725.3699.19423.4718.06217.33312.10617.924NANA
us-gaap:NetIncomeLoss ▃▆▁▃▆▃▇▅▄▅▅██▇-63.396-32.983-91.77-64.181-25.258-71.075-17.509-37.59-50.738-38.514-40.828-6.634-12.574-14.21
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▆█▁▅▆▆▇▇-2.8768.919-37.021-9.113-3.471-5.9293.7473.221NANANANANANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▄▇▁▄▇▃█▆▄▅▅█▇▆-63.396-32.983-91.77-64.181-25.258-71.075-17.509-37.59-63.26-50.717-53.017-17.865-23.269-41.721
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted ▄▇▁▄▇▃█▆▄▅▅█▇▆-63.396-32.983-91.77-64.181-25.258-71.075-17.509-37.59-63.26-50.717-53.017-17.865-23.269-41.721
us-gaap:OperatingIncomeLoss ▃▁▂█▆▃▅▆▆▆▄██▅-14.343-23.306-17.9781.649-5.143-14.306-9.155-5.898-2.71-4.507-12.4173.4042.435-7.152
us-gaap:OtherNonoperatingIncomeExpense ▁▂█▁▂0.0160.1131.577-0.0910.266NA-0.053-0.293-0.534NA0.00.00.001NA
us-gaap:ProfitLoss ▅▇▁▄▇▄█▆▆▆▆███-66.272-24.064-128.791-73.294-28.729-77.004-13.762-34.369-49.807-35.496-39.102-6.647-9.224-13.436
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax █▄▄▆▄▃▃▄▃▂▂▃▂▁66.55641.27638.02450.17742.7929.82933.61436.61534.61226.71525.20630.42928.96319.784
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:Assets █▆▅▄▃▃▂▂▁4566.1083756.6083587.5823154.2862867.5952682.182487.0672149.7861952.664NA1665.085NANANA
us-gaap:Liabilities █▅▅▄▃▃▂▁▁3153.5452395.7012306.9012142.9671967.6021847.7331668.8271366.6481403.532NA1078.287NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▆▅▄▃▃▂▂▁4566.1083756.6083587.5823154.2862867.5952682.182487.0672149.7861952.664NA1665.085NANANA
us-gaap:StockholdersEquity ██▇▄▃▃▃▃▁▁▂▂▁▁1066.7341022.875951.731722.594661.688592.02645.935626.56441.585473.314501.118512.022454.654461.022
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:AssetsCurrent █▅▆▄▃▃▃▁▁639.678376.81456.655309.425286.805279.956274.32126.389109.003NA89.533NANANA
us-gaap:Cash █▃▅▂▂▂▂▁▁▁▁▂▁368.626150.892209.85984.635102.27973.43683.48551.02658.77643.85852.70671.14953.723NA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▄▆▃▃▃▂▂▁▁▁▁▁469.098263.463377.893211.689184.427169.236150.291109.27199.49679.28787.04699.92882.382NA
us-gaap:AccountsReceivableNetCurrent █▃▁▃▃▁▂▁▂17.88611.80210.24311.79912.50410.03910.67210.38311.15NA6.312NANANA
us-gaap:InventoryNet █▇▆▇█▇▃▁▁128.004107.684102.589111.011120.804115.10743.74917.12516.526NA9.187NANANA
us-gaap:OtherAssetsCurrent █▇▇▇▆▆▆▂▁230.043192.58215.175199.637165.928187.217174.01659.05834.546NA26.794NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:PropertyPlantAndEquipmentGross █▇▆▅▄▃▃▂▁2846.9142679.1392536.7572368.2382184.82047.6011893.2191753.9151621.472NA1427.535NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment █▇▆▅▄▃▂▂▁255.873233.036213.588195.511178.685163.025148.159133.867121.581NA99.078NANANA
us-gaap:PropertyPlantAndEquipmentNet █▇▆▅▄▃▃▂▁2591.0412446.1032323.1692172.7272006.1151884.5761745.061620.0481499.891NA1328.457NANANA
 us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ConsolidatedEntities srt:ParentCompanyNANA1076.299NANANA891.33NANANA0.0NANANA
us-gaap:Goodwill 4.096NANANANANANANANANANANANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill 200.097NA0.049NANANANANANANANANANANA
us-gaap:FiniteLivedIntangibleAssetsNet 200.097NA0.038NANANA0.067NANANA0.0NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▇▇▇▇▇███▁9.1798.5588.7798.9979.2129.4349.6689.8692.775NA2.586NANANA
us-gaap:OtherAssetsNoncurrent █▇▆▅▃▃▂▂▁357.73310.794294.372243.548195.699179.134169.712148.279120.125NA75.064NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:AccountsPayableCurrent ▄▂▄▁▁█▃▄▅39.95533.90339.90829.28827.5959.65736.1940.34245.134NA20.075NANANA
us-gaap:AccruedLiabilitiesCurrent ██▆▄▃▁▇▂▂42.67644.30934.04927.94421.49615.15839.54417.90418.861NA18.65NANANA
us-gaap:ContractWithCustomerLiabilityCurrent █▇▃▃▄▃▂▂▁9.79.03.82.94.72.92.11.30.651NA1.6NANANA
us-gaap:LiabilitiesCurrent █▇▆▅▅▅▅▁▃239.055217.349210.853185.533189.761190.855195.002131.151158.604NA95.404NANANA
us-gaap:LongTermDebtCurrent █▇▆▆▇▅▅▁▃128.32116.205110.883109.729114.141100.71697.46459.40475.908NA43.465NANANA
us-gaap:OperatingLeaseLiabilityCurrent █▅▅▅▅▄▁▁▄1.4541.1081.0941.0751.0560.920.5560.5240.938NA0.871NANANA
us-gaap:OtherLiabilitiesCurrent █▆▇▃▇▂▅▁▃28.10422.93226.01318.57226.53415.32421.80413.50118.701NA13.214NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:LongTermDebt NANA2123.09NANANA1498.711NANANANANANANA
 us-gaap:LongTermDebt dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType a12344345:SEI,a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive,a12344345:ConvertibleSeniorNotesNANA58.096.7NANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent █▅▅▄▃▃▂▁▁2592.7971994.7341924.6531795.0391628.6721511.5551346.4191116.3691152.884NA916.43NANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity a12344345:HeliosIIIIssuerLLCNANA2.3262.3532.382.3862.412.4262.411NA0.0NANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity a12344345:HeliosIIIssuerLLCNANA5.0855.2775.4715.6685.8736.0776.279NA6.425NANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity a12344345:HeliosIVIssuerLLCNANA3.9054.0284.066NA0.0NANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity a12344345:HeliosIssuerLLCNANA4.0044.3724.8015.1765.5865.9676.39NA7.217NANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity a12344345:SunnovaLAPHoldingsLLCNANANA0.1230.1370.1520.3560.3880.419NA0.482NANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity a12344345:SunnovaRAYSIIssuerLLCNANA4.3344.4414.5474.6564.7594.8635.704NA0.0NANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity a12344345:SunnovaSolIIIssuerLLCNANA5.866NANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity a12344345:SunnovaSolIssuerLLCNANA8.9159.1699.4159.6930.0NANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity a12344345:SunnovaTEPInventoryLLCNANA1.758NANANA2.207NANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity a12344345:TEPINVNANANA2.3221.8342.2072.207NANANA0.0NANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity nova:HeliosIIIIssuerLLC▁▄█2.272.2982.326NANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity nova:HeliosIIIssuerLLC▁▄█4.714.8965.085NANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity nova:HeliosIVIssuerLLC▁▅█3.5833.7543.905NANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity nova:HeliosIssuerLLCNA3.6074.004NANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity nova:HeliosVIssuerLLC▁█3.4843.607NANANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity nova:SunnovaRAYSIIssuerLLC▁▅█4.1224.2294.334NANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity nova:SunnovaSolIIIIssuerLLC6.687NANANANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity nova:SunnovaSolIIIssuerLLC▁▆█5.7255.8255.866NANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity nova:SunnovaSolIssuerLLC▁▅█8.4058.668.915NANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity nova:SunnovaTEPInventoryLLCNA1.4421.758NANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType a12344345:SEI,a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive,a12344345:ConvertibleSeniorNotesNANA0.2390.4161.158NA0.48NANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType nova:SEI,nova:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive,nova:ConvertibleSeniorNotesNANA0.239NANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity,us-gaap:LongtermDebtType nova:SEI,us-gaap:ConvertibleDebt0.473NA0.239NANANANANANANANANANANA
us-gaap:MinorityInterest █▇▆▁205.644200.91192.826152.878NANA45.176NANANANANANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ███▇▇▇▇█▁10.1189.8859.7428.8468.849.1139.3899.6572.172NA2.083NANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo █▂▁▁1.9441.5941.5591.559NANA1.5361.0191.068NA0.842NANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree ██▁▁1.6161.6161.5941.594NANA1.5591.5211.095NA0.863NANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour ██▁▁1.6331.6331.6161.616NANA1.5941.5590.649NA0.512NANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA1.633NANANA1.6161.5940.0NA0.0NANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA5.984NANANA7.6179.2340.0NA0.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:StockholdersEquity ██▇▄▃▃▃▃▁▁▂▂▁▁1066.7341022.875951.731722.594661.688592.02645.935626.56441.585473.314501.118512.022454.654461.022
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ██▇▅▄▃▃▃▁▁▂1272.3781223.7851144.557875.472767.42703.657691.111662.267441.585473.314501.118NANANA
us-gaap:CommonStockValue ██▆▃▁▁▁▁0.0110.0110.010.0090.0080.0080.0080.008NANA0.0NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ██▇▆▆▅▅▅▁1596.6591547.3751482.7161198.681088.2231010.6551007.751991.93686.437NA85.439NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▁▁▃▅▅▇▇█-529.936-524.511-530.995-476.095-426.543-418.643-361.824-365.384-347.152NA-286.312NANANA
 us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidatedEntities srt:ParentCompanyNANA-441.25NANANA-133.432NANANA0.0NANANA
us-gaap:MinorityInterest █▇▆▁205.644200.91192.826152.878NANA45.176NANANANANANANA
us-gaap:StockIssuedDuringPeriodValueNewIssues █▁138.0265.542NA152.920.5580.214NA164.392NA0.004NA-0.001NA97.33
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▁█2.927.924NA2.3453.3542.69NA5.980.7130.281NA0.7740.6820.726
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders █▁2.31.743NA0.7731.2271.373NA1.1461.4913.652NA0.5330.450.339
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▄▅▆▆▃▁▆▅▆█▇-60.776-49.908-29.67-18.868-24.816-58.112-95.724-18.844-31.264-24.4313.672-4.681NANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁▃▃▃▅▅▅▅▇███-282.976-226.213-235.244-236.678-173.282-184.315-178.615-172.291-124.73-92.68-89.017-87.989NANA
us-gaap:NetCashProvidedByUsedInFinancingActivities █▂▆▄▃▄▅▃▃▂▁▂549.387161.691431.118282.808213.289261.372315.359200.91176.203109.35162.463110.216NANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▁▇▄▄▄▄▄▄▃▃▄205.635-114.43166.20427.26215.19118.94541.029.77520.209-7.759-12.88217.546NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:AmortizationOfFinancingCosts █▂▃▁▂▄▁▁▂█▃▂6.6692.1642.251.3721.9153.4941.0271.0251.4466.3242.5862.125NANA
us-gaap:IncreaseDecreaseInAccountsPayable ▄▄▅▄▁█▅▅▃▆▄▅-1.518-0.7562.133-2.568-14.47413.7680.1362.877-4.4926.771-0.8510.434NANA
us-gaap:IncreaseDecreaseInAccountsReceivable █▄▄▃▂▅▄▄▇▄▁▅7.531.7711.5120.844-0.8142.7551.3431.4095.431.167-2.6913.192NANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▄▅▆▆▃▁▆▅▆█▇-60.776-49.908-29.67-18.868-24.816-58.112-95.724-18.844-31.264-24.4313.672-4.681NANA
us-gaap:NetIncomeLoss ▃▆▁▃▆▃▇▅▄▅▅██▇-63.396-32.983-91.77-64.181-25.258-71.075-17.509-37.59-50.738-38.514-40.828-6.634-12.574-14.21
us-gaap:ProfitLoss ▅▇▁▄▇▄█▆▆▆▆███-66.272-24.064-128.791-73.294-28.729-77.004-13.762-34.369-49.807-35.496-39.102-6.647-9.224-13.436
us-gaap:ShareBasedCompensation ▃█▃▃▄▃▃▆▁▁▁▁2.927.9242.4842.3453.3542.692.2615.980.7130.2810.8020.774NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁▃▃▃▅▅▅▅▇███-282.976-226.213-235.244-236.678-173.282-184.315-178.615-172.291-124.73-92.68-89.017-87.989NANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▅▅▆█▆▆▆▆▃▂▂▁118.888117.459138.514165.522133.102141.231131.623134.40395.89468.90268.35860.193NANA
us-gaap:PaymentsToAcquireInvestments █▅▄▃▂▂▂▂▁▁▁▁182.966122.532104.51381.70948.56850.44854.91242.03134.62827.73227.79730.048NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities █▂▆▄▃▄▅▃▃▂▁▂549.387161.691431.118282.808213.289261.372315.359200.91176.203109.35162.463110.216NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType a12344345:SunnovaSolIIIssuerLLC,a12344345:SOLIISeries20202ClassA,us-gaap:AssetBackedSecuritiesNANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType a12344345:SunnovaSolIIIssuerLLC,a12344345:SOLIISeries20202ClassB,us-gaap:AssetBackedSecuritiesNANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType nova:SEI,nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySix,us-gaap:ConvertibleDebtNANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType a12344345:SunnovaHeliosVIssuerLLC,a12344345:HELVSeries2021AClassA,a12344345:LoanBackedNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType a12344345:SunnovaHeliosVIssuerLLC,a12344345:HELVSeries2021AClassB,a12344345:LoanBackedNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value11000.011000.010000.09000.08000.08000.08000.08000.00
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.0

us-gaap:CommonStockValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Common
Period End2020-12-312019-12-312018-12-31
Value10000.08000.00
Percentage of CommonStockValue100.0100.00.0
Percentage of Assets0.00.00.0
Percentage of Assets srt:ParentCompany0.00.00.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302020-06-30
Value11184
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302020-06-30
Value11184
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0

Weighted Average Number Of Share Outstanding Basic And Diluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


Weighted
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value106878484608.6365988.6355278.6345418.634455
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

a12344345:ConvertibleSeniorNotes


Antidilutive
Period End2020-09-302020-06-302020-03-312019-06-302019-03-31
Value14104.2307680.00.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.00.00.0

nova:ConvertibleSeniorNotes


Antidilutive
Period End2021-03-312020-03-31
Value1.6821324.230768
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount0.0100.0

us-gaap:ConvertibleDebt


Antidilutive
Period End2021-06-302020-06-30
Value8.15117210
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount0.0100.0

us-gaap:EmployeeStockOption


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value4.7076974.902796.0067916.6509945.8725635.2774144.3236584.4710094.643754.322366
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount0.00.040.164.8138.80.00.00.00.00.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302020-06-30
Value-0.57-0.3
Percentage of EarningsPerShareBasic100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302020-06-30
Value-0.57-0.3
Percentage of EarningsPerShareDiluted100.0100.0

Earnings Per Share Basic And Diluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted


Earnings
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.31-0.96-0.73-0.3-0.85-0.21-0.62-7.32-5.87-6.14-2.07-2.69-4.83
Percentage of EarningsPerShareBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Cost Of Goods And Service Excluding Depreciation Depletion And Amortization

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value4996000.01234000.01432000.01403000.02869000.01043000.0963000.01186000.01076000.0652000.0533000.0614000.0448000.0
Percentage of CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.53.03.82.86.73.52.93.23.12.42.12.01.5

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8064564847444242373137272626
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax121.6156.5147.396.7112.0148.0127.2116.1107.8116.9149.388.891.6136.2

Gains Losses On Extinguishment Of Debt

us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:GainsLossesOnExtinguishmentOfDebt


Gains
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value-9824000.0-92051000.0-50721000.0000-10645000.0000
Percentage of GainsLossesOnExtinguishmentOfDebt100.0100.0100.00.00.00.0100.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-14.8-242.1-101.10.00.00.0-30.80.00.00.0

us-gaap:GainsLossesOnExtinguishmentOfDebt dei:LegalEntity, us-gaap:LongtermDebtType

nova:HeliosIssuerLLC, us-gaap:AssetBackedSecurities


Gains
Period End2021-06-30
Value-9800000.0
Percentage of GainsLossesOnExtinguishmentOfDebt99.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nova:HeliosIssuerLLC us-gaap:AssetBackedSecurities0.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value48423028282727282318181715
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax72.6102.580.456.965.793.580.377.968.769.972.756.453.8

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value5000.0176000.0000000000
Percentage of IncomeTaxExpenseBenefit100.0100.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.40.00.00.00.00.00.00.00.00.0

Income Taxes Paid

us-gaap:IncomeTaxesPaid

us-gaap:IncomeTaxesPaid


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value123000.058000.000000000
Percentage of IncomeTaxesPaid100.0100.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.10.00.00.00.00.00.00.00.0

Interest Expense Debt

us-gaap:InterestExpenseDebt

us-gaap:InterestExpenseDebt


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value508.051262930678.169303731269.41610
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.319.570.459.771.4225.724.384.3107.8118.5105.030.937.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2028183013259.194238.062171217
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.268.349.460.930.685.027.464.123.364.948.058.9

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-63396000.0-32983000.0-91770000.0-64181000.0-25258000.0-71075000.0-17509000.0-37590000.0-50738000.0-38514000.0-40828000.0-6634000.0-12574000.0-14210000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-95.3-79.9-241.3-127.9-59.0-238.3-52.1-102.7-146.6-144.2-162.0-21.8-43.4-71.8

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value-2.8768.919-37.021-9.113-3.471-5.9293.7473.221
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.321.6-97.4-18.2-8.1-19.911.18.8

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-63396000.0-32983000.0-91770000.0-64181000.0-25258000.0-71075000.0-17509000.0-37590000.0-63260000.0-50717000.0-53017000.0-17865000.0-23269000.0-41721000.0
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-95.3-79.9-241.3-127.9-59.0-238.3-52.1-102.7-182.8-189.8-210.3-58.7-80.3-210.9

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-63396000.0-32983000.0-91770000.0-64181000.0-25258000.0-71075000.0-17509000.0-37590000.0-63260000.0-50717000.0-53017000.0-17865000.0-23269000.0-41721000.0
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-95.3-79.9-241.3-127.9-59.0-238.3-52.1-102.7-182.8-189.8-210.3-58.7-80.3-210.9

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-14343000.0-23306000.0-17978000.01649000.0-5143000.0-14306000.0-9155000.0-5898000.0-2710000.0-4507000.0-12417000.03404000.02435000.0-7152000.0
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-21.6-56.5-47.33.3-12.0-48.0-27.2-16.1-7.8-16.9-49.311.28.4-36.2

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value16000.0113000.01577000.0-91000.0266000.0-53000.0-293000.0-534000.0001000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.34.1-0.20.6-0.2-0.8-1.50.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-66272000.0-24064000.0-128790000.0-73294000.0-28729000.0-77004000.0-13762000.0-34369000.0-49807000.0-35496000.0-39102000.0-6647000.0-9224000.0-13436000.0
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-99.6-58.3-338.7-146.1-67.1-258.2-40.9-93.9-143.9-132.9-155.1-21.8-31.8-67.9

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6641385042293336342625302819
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

a12344345:EasyOwnProgramRevenue


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1.0110.7880.6340.5990.4930.4180.3630.3710.280.2510.224
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.71.61.52.01.51.11.01.41.10.80.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.71.61.52.01.51.11.01.41.10.80.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax a12344345:EasyOwnProgramRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:LeaseRevenue


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1413121110109.629.6389.2468.4528.144
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax38.526.128.838.731.828.027.836.136.727.828.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax38.526.128.838.731.828.027.836.136.727.828.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax a12344345:LeaseRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:OtherRevenue


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.3642.4141.1610.6920.7381.0270.9590.5020.1610.2740.238
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.04.82.72.32.22.82.81.90.60.90.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.04.82.72.32.22.82.81.90.60.90.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax a12344345:OtherRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:PowerPurchaseAgreementPPA


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value131919121014139.6128.6951111
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.539.346.642.430.239.140.336.034.537.839.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.539.346.642.430.239.140.336.034.537.839.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax a12344345:PowerPurchaseAgreementPPA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:SolarRenewableEnergyCertificateRevenue


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value8.502148.7354.36311109.7166.5926.8249.9448.898
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax22.428.220.414.634.329.028.124.727.132.730.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax22.428.220.414.634.329.028.124.727.132.730.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax a12344345:SolarRenewableEnergyCertificateRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nova:CashSalesRevenue


Revenue
Period End2021-06-30
Value6.938
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nova:CashSalesRevenue100.0

nova:EasyOwnProgramRevenue


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value1.6791.1950.6340.599
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.52.91.52.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.52.91.52.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nova:EasyOwnProgramRevenue100.0100.0100.0100.0

nova:LeaseRevenue


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value17161211
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.339.728.838.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.339.728.838.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nova:LeaseRevenue100.0100.0100.0100.0

nova:OtherRevenue


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value2.3330.8931.1610.692
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.52.22.72.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.52.22.72.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nova:OtherRevenue100.0100.0100.0100.0

nova:PowerPurchaseAgreementPPA


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value26161912
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax39.440.846.642.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax39.440.846.642.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nova:PowerPurchaseAgreementPPA100.0100.0100.0100.0

nova:SolarRenewableEnergyCertificateRevenue


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value115.9578.7354.363
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.814.420.414.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.814.420.414.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nova:SolarRenewableEnergyCertificateRevenue100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value4566375635873154286726822487214919521665
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

srt:ParentCompany


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-31
Value10818920.0
Percentage of Assets30.135.90.0
Percentage of Assets30.135.90.0
Percentage of Assets srt:ParentCompany100.0100.00.0

us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value169015101471125411131038790
Percentage of Assets37.040.241.039.838.838.731.8
Percentage of Assets37.040.241.039.838.838.731.8
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value3153239523062142196718471668136614031078
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets69.163.864.367.968.668.967.163.671.964.8

us-gaap:Liabilities us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilitiesus-gaap:
Period End2020-12-312019-12-312018-12-31
Value59370.0
Percentage of Liabilities2.62.30.0
Percentage of Assets1.71.50.0
Percentage of Assets srt:ParentCompany5.54.20.0

us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value38353220171613
Percentage of Liabilities1.21.51.40.90.90.90.8
Percentage of Assets0.81.00.90.60.60.60.5
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary2.32.42.21.61.61.51.7

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value4566375635873154286726822487214919521665
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2020-12-312019-12-312018-12-31
Value10818920.0
Percentage of LiabilitiesAndStockholdersEquity30.135.90.0
Percentage of Assets30.135.90.0
Percentage of Assets srt:ParentCompany100.0100.00.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value10661022951722661592645626441473501512454461371325
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.427.226.522.923.122.126.029.122.60.030.10.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-31
Value10218540.0
Percentage of StockholdersEquity107.3132.30.0
Percentage of Assets28.534.40.0
Percentage of Assets srt:ParentCompany94.595.80.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value63937645630928627927412610989
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets14.010.012.79.810.010.411.05.95.65.4

us-gaap:AssetsCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Assets
Period End2020-12-312019-12-312018-12-31
Value4.9170.6960.0
Percentage of AssetsCurrent1.10.30.0
Percentage of Assets0.10.00.0
Percentage of Assets srt:ParentCompany0.50.10.0

Cash

us-gaap:Cash

us-gaap:Cash


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value36815020984102738351584352715356
Percentage of Cash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.14.05.82.73.62.73.42.43.00.03.20.00.00.0

us-gaap:Cash us-gaap:ConsolidatedEntities

srt:ParentCompany


Cashus-gaap:
Period End2020-12-312019-12-312018-12-31
Value4.9170.6960.0
Percentage of Cash2.30.80.0
Percentage of Assets0.10.00.0
Percentage of Assets srt:ParentCompany0.50.10.0

us-gaap:VariableInterestEntityPrimaryBeneficiary


Cashus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value20151312107.6417.347
Percentage of Cash5.510.36.414.610.210.48.8
Percentage of Assets0.40.40.40.40.40.30.3
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary1.21.00.91.00.90.70.9

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value46926337721118416915010999798799828149
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.37.010.56.76.46.36.05.15.10.05.20.00.00.00.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents us-gaap:ConsolidatedEntities

srt:ParentCompany


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value4.9170.6960.00.00.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents1.30.50.00.00.0
Percentage of Assets0.10.00.00.00.0
Percentage of Assets srt:ParentCompany0.50.10.00.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1711101112101010116.312
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.30.30.40.40.40.40.50.60.4

us-gaap:AccountsReceivableNetCurrent us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value5.3043.8222.9532.7192.6011.9891.46
Percentage of AccountsReceivableNetCurrent29.732.428.823.020.819.813.7
Percentage of Assets0.10.10.10.10.10.10.1
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary0.30.30.20.20.20.20.2

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1281071021111201154317169.187
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.82.92.93.54.24.31.80.80.80.6

us-gaap:InventoryNet us-gaap:PublicUtilitiesInventory

a12344345:BatteriesandComponents


Inventory
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value181822343316168.394
Percentage of InventoryNet17.716.618.829.676.498.898.591.4
Percentage of Assets0.50.60.81.31.30.80.80.5
Percentage of Assets a12344345:BatteriesandComponents0.00.00.00.00.00.00.00.0

a12344345:Meters


Inventory
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value0.5630.9120.6980.1540.1690.1610.1590.36
Percentage of InventoryNet0.50.80.60.10.40.91.03.9
Percentage of Assets0.00.00.00.00.00.00.00.0
Percentage of Assets a12344345:Meters0.00.00.00.00.00.00.00.0

a12344345:ModulesandInverters


Inventory
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value83919780100.0430.0880.433
Percentage of InventoryNet81.882.580.770.323.20.30.54.7
Percentage of Assets2.32.93.43.00.40.00.00.0
Percentage of Assets a12344345:ModulesandInverters0.00.00.00.00.00.00.00.0

nova:BatteriesandComponents


Inventory
Period End2021-06-302021-03-312020-12-31
Value302918
Percentage of InventoryNet23.927.617.7
Percentage of Assets0.70.80.5
Percentage of Assets nova:BatteriesandComponents0.00.00.0

nova:HomebuilderConstructionInProgress


Inventory
Period End2021-06-30
Value16
Percentage of InventoryNet13.1
Percentage of Assets0.4
Percentage of Assets nova:HomebuilderConstructionInProgress0.0

nova:Meters


Inventory
Period End2021-03-312020-12-31
Value0.6380.563
Percentage of InventoryNet0.60.5
Percentage of Assets0.00.0
Percentage of Assets nova:Meters0.00.0

nova:MetersAndModems


Inventory
Period End2021-06-302020-12-31
Value1.2920.563
Percentage of InventoryNet1.00.5
Percentage of Assets0.00.0
Percentage of Assets nova:MetersAndModems0.00.0

nova:ModulesandInverters


Inventory
Period End2021-06-302021-03-312020-12-31
Value797783
Percentage of InventoryNet62.071.881.8
Percentage of Assets1.72.12.3
Percentage of Assets nova:ModulesandInverters0.00.00.0

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value230192215199165187174593426
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.05.16.06.35.87.07.02.71.81.6

us-gaap:OtherAssetsCurrent us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value1561211821319612747
Percentage of OtherAssetsCurrent67.963.384.965.758.368.227.4
Percentage of Assets3.43.25.14.23.44.81.9
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary9.28.112.410.58.712.36.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2846267925362368218420471893175316211427
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets62.371.370.775.176.276.376.181.683.085.7

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

a12344345:AssetRetirementObligations


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value3533302926201917
Percentage of PropertyPlantAndEquipmentGross1.41.41.41.41.41.21.21.2
Percentage of Assets1.01.01.11.11.10.91.01.0
Percentage of Assets a12344345:AssetRetirementObligations0.00.00.00.00.00.00.00.0

nova:AssetRetirementObligations


Property
Period End2021-06-302021-03-312020-12-31
Value403735
Percentage of PropertyPlantAndEquipmentGross1.41.41.4
Percentage of Assets0.91.01.0
Percentage of Assets nova:AssetRetirementObligations0.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value15015116016714114814314111877
Percentage of PropertyPlantAndEquipmentGross5.35.66.37.16.57.27.68.17.35.5
Percentage of Assets3.34.04.55.34.95.55.86.66.14.7
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.0

us-gaap:ElectricGenerationEquipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2609244722982131197618361689156714591311
Percentage of PropertyPlantAndEquipmentGross91.791.390.690.090.589.789.289.490.091.9
Percentage of Assets57.265.164.167.668.968.567.972.974.778.8
Percentage of Assets us-gaap:ElectricGenerationEquipment0.00.00.00.00.00.00.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1.1320.8110.8110.8110.8360.8110.7350.7350.7350.735
Percentage of PropertyPlantAndEquipmentGross0.00.00.00.00.00.00.00.00.00.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.00.00.00.0

us-gaap:LeaseholdImprovements


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value3.1432.7762.772.7052.4671.3141.0140.8830.8830.883
Percentage of PropertyPlantAndEquipmentGross0.10.10.10.10.10.10.10.10.10.1
Percentage of Assets0.10.10.10.10.10.00.00.00.00.1
Percentage of Assets us-gaap:LeaseholdImprovements0.00.00.00.00.00.00.00.00.00.0

us-gaap:OfficeEquipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2.3281.9131.7271.6941.631.6441.4991.4891.4331.251
Percentage of PropertyPlantAndEquipmentGross0.10.10.10.10.10.10.10.10.10.1
Percentage of Assets0.10.10.00.10.10.10.10.10.10.1
Percentage of Assets us-gaap:OfficeEquipment0.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherCapitalizedPropertyPlantAndEquipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value0.1570.1570.1570.1580.1580.1570.1460.1470.1160.052
Percentage of PropertyPlantAndEquipmentGross0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:OtherCapitalizedPropertyPlantAndEquipment0.00.00.00.00.00.00.00.00.00.0

us-gaap:SoftwareAndSoftwareDevelopmentCosts


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value37353529282828202017
Percentage of PropertyPlantAndEquipmentGross1.31.31.41.21.31.41.51.21.31.2
Percentage of Assets0.80.91.00.91.01.11.11.01.01.0
Percentage of Assets us-gaap:SoftwareAndSoftwareDevelopmentCosts0.00.00.00.00.00.00.00.00.00.0

us-gaap:Vehicles


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1.6381.6381.6382.0731.641.6361.6320.8850.8690.548
Percentage of PropertyPlantAndEquipmentGross0.10.10.10.10.10.10.10.10.10.0
Percentage of Assets0.00.00.00.10.10.10.10.00.00.0
Percentage of Assets us-gaap:Vehicles0.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value25523321319517816314813312199
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.66.26.06.26.26.16.06.26.26.0

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:PropertyPlantAndEquipmentByType

us-gaap:ElectricGenerationEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value22420618817215714313011810787
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment87.788.488.488.388.388.288.488.388.388.4
Percentage of Assets4.95.55.35.55.55.45.35.55.55.3
Percentage of Assets us-gaap:ElectricGenerationEquipment0.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2591244623232172200618841745162014991328
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets56.765.164.868.970.070.370.275.476.879.8

us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value1485134912571094994893726
Percentage of PropertyPlantAndEquipmentNet57.355.254.150.449.647.441.6
Percentage of Assets32.535.935.134.734.733.329.2
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary87.989.485.587.389.386.091.9

Investments In Affiliates Subsidiaries Associates And Joint Ventures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ConsolidatedEntities

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

srt:ParentCompany


Investments
Period End2020-12-312019-12-312018-12-31
Value10768910.0
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.00.0
Percentage of Assets30.035.80.0
Percentage of Assets srt:ParentCompany99.599.90.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-30
Value4096000.0
Percentage of Goodwill100.0
Percentage of Assets0.1

us-gaap:Goodwill us-gaap:BusinessAcquisition

nova:SunStreetEnergyGroupLLC


Goodwillus-gaap:
Period End2021-04-01
Value4096000.0
Percentage of Goodwill0.0
Percentage of Assets0.0
Percentage of Assets nova:SunStreetEnergyGroupLLC0.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302020-12-31
Value2000.049
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0
Percentage of Assets4.40.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302020-12-312019-12-312018-12-31
Value2000.0380.0670.0
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.00.0
Percentage of Assets4.40.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value9179000.08558000.08779000.08997000.09212000.09434000.09668000.09869000.02775000.02586000.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.30.30.40.40.50.10.2

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value35731029424319517916914812075
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.88.38.27.76.86.76.86.96.24.5

us-gaap:OtherAssetsNoncurrent us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value211814129.78.3457.379
Percentage of OtherAssetsNoncurrent6.15.94.85.25.04.74.3
Percentage of Assets0.50.50.40.40.30.30.3
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary1.31.21.01.00.90.80.9

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value39333929275936404520
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.90.91.10.91.02.21.51.92.31.2

us-gaap:AccountsPayableCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Accounts
Period End2020-12-31
Value0.437
Percentage of AccountsPayableCurrent1.1
Percentage of Assets0.0
Percentage of Assets srt:ParentCompany0.0

us-gaap:VariableInterestEntityPrimaryBeneficiary


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value4.0063.3032.7442.1332.471.9721.926
Percentage of AccountsPayableCurrent10.09.76.97.39.03.35.3
Percentage of Assets0.10.10.10.10.10.10.1
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary0.20.20.20.20.20.20.2

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value42443427211539171818
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.91.20.90.90.70.61.60.81.01.1

us-gaap:AccruedLiabilitiesCurrent us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value0.0920.8860.8270.6030.0960.1110.035
Percentage of AccruedLiabilitiesCurrent0.22.02.42.20.40.70.1
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.10.10.00.00.00.0

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value9700000.09000000.03800000.02900000.04700000.02900000.02100000.01300000.0651000.01600000.0
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.10.10.20.10.10.10.00.1

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value23921721018518919019513115895
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.25.85.95.96.67.17.86.18.15.7

us-gaap:LiabilitiesCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2020-12-312019-12-312018-12-31
Value1.7510.0830.0
Percentage of LiabilitiesCurrent0.80.00.0
Percentage of Assets0.00.00.0
Percentage of Assets srt:ParentCompany0.20.00.0

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value12811611010911410097597543
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.83.13.13.54.03.83.92.83.92.6

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1454000.01108000.01094000.01075000.01056000.0920000.0556000.0524000.0938000.0871000.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.1

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value28222618261521131813
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.70.60.90.60.90.61.00.8

us-gaap:OtherLiabilitiesCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Other
Period End2020-12-312019-12-31
Value1.3140.083
Percentage of OtherLiabilitiesCurrent5.10.4
Percentage of Assets0.00.0
Percentage of Assets srt:ParentCompany0.10.0

us-gaap:VariableInterestEntityPrimaryBeneficiary


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value3.0493.743.2840.2770.4851.1370.612
Percentage of OtherLiabilitiesCurrent10.816.312.61.51.87.42.8
Percentage of Assets0.10.10.10.00.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary0.20.20.20.00.00.10.1

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2020-12-312019-12-31
Value21231498
Percentage of LongTermDebt100.0100.0
Percentage of Assets59.260.3

us-gaap:LongTermDebt dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

a12344345:SEI, a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, a12344345:ConvertibleSeniorNotes


Long
Period End2020-12-312020-09-30
Value5896
Percentage of LongTermDebt2.70.0
Percentage of Assets1.63.1
Percentage of Assets a12344345:SEI a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive a12344345:ConvertibleSeniorNotes0.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value259219941924179516281511134611161152916
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets56.853.153.656.956.856.454.151.959.055.0

Deferred Finance Costs Noncurrent Net

us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity

us-gaap:DeferredFinanceCostsNoncurrentNet

a12344345:HeliosIIIIssuerLLC


Deferred
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2326000.02353000.02380000.02386000.02410000.02426000.02411000.00
Percentage of DeferredFinanceCostsNoncurrentNet100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.10.10.10.10.10.10.10.0
Percentage of Assets a12344345:HeliosIIIIssuerLLC0.00.00.00.00.00.00.00.0

a12344345:HeliosIIIssuerLLC


Deferred
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value5085000.05277000.05471000.05668000.05873000.06077000.06279000.06425000.0
Percentage of DeferredFinanceCostsNoncurrentNet218.6224.3229.9237.6243.7250.5260.40.0
Percentage of Assets0.10.20.20.20.20.30.30.4
Percentage of Assets a12344345:HeliosIIIssuerLLC0.00.00.00.00.00.00.00.0

a12344345:HeliosIVIssuerLLC


Deferred
Period End2020-12-312020-09-302020-06-302019-12-31
Value3905000.04028000.04066000.00
Percentage of DeferredFinanceCostsNoncurrentNet167.9171.2170.80.0
Percentage of Assets0.10.10.10.0
Percentage of Assets a12344345:HeliosIVIssuerLLC0.00.00.00.0

a12344345:HeliosIssuerLLC


Deferred
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value4004000.04372000.04801000.05176000.05586000.05967000.06390000.07217000.0
Percentage of DeferredFinanceCostsNoncurrentNet172.1185.8201.7216.9231.8246.0265.00.0
Percentage of Assets0.10.10.20.20.20.30.30.4
Percentage of Assets a12344345:HeliosIssuerLLC0.00.00.00.00.00.00.00.0

a12344345:SunnovaLAPHoldingsLLC


Deferred
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value123000.0137000.0152000.0356000.0388000.0419000.0482000.0
Percentage of DeferredFinanceCostsNoncurrentNet5.25.86.414.816.017.40.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets a12344345:SunnovaLAPHoldingsLLC0.00.00.00.00.00.00.0

a12344345:SunnovaRAYSIIssuerLLC


Deferred
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value4334000.04441000.04547000.04656000.04759000.04863000.05704000.00
Percentage of DeferredFinanceCostsNoncurrentNet186.3188.7191.1195.1197.5200.5236.60.0
Percentage of Assets0.10.10.20.20.20.20.30.0
Percentage of Assets a12344345:SunnovaRAYSIIssuerLLC0.00.00.00.00.00.00.00.0

a12344345:SunnovaSolIIIssuerLLC


Deferred
Period End2020-12-31
Value5866000.0
Percentage of DeferredFinanceCostsNoncurrentNet252.2
Percentage of Assets0.2
Percentage of Assets a12344345:SunnovaSolIIIssuerLLC0.0

a12344345:SunnovaSolIssuerLLC


Deferred
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value8915000.09169000.09415000.09693000.00
Percentage of DeferredFinanceCostsNoncurrentNet383.3389.7395.6406.20.0
Percentage of Assets0.20.30.30.40.0
Percentage of Assets a12344345:SunnovaSolIssuerLLC0.00.00.00.00.0

a12344345:SunnovaTEPInventoryLLC


Deferred
Period End2020-12-312019-12-31
Value1758000.02207000.0
Percentage of DeferredFinanceCostsNoncurrentNet75.691.6
Percentage of Assets0.00.1
Percentage of Assets a12344345:SunnovaTEPInventoryLLC0.00.0

a12344345:TEPINV


Deferred
Period End2020-09-302020-06-302020-03-312019-12-312018-12-31
Value2322000.01834000.02207000.02207000.00
Percentage of DeferredFinanceCostsNoncurrentNet98.777.192.591.60.0
Percentage of Assets0.10.10.10.10.0
Percentage of Assets a12344345:TEPINV0.00.00.00.00.0

nova:HeliosIIIIssuerLLC


Deferred
Period End2021-06-302021-03-312020-12-31
Value2270000.02298000.02326000.0
Percentage of DeferredFinanceCostsNoncurrentNet0.00.0100.0
Percentage of Assets0.00.10.1
Percentage of Assets nova:HeliosIIIIssuerLLC0.00.00.0

nova:HeliosIIIssuerLLC


Deferred
Period End2021-06-302021-03-312020-12-31
Value4710000.04896000.05085000.0
Percentage of DeferredFinanceCostsNoncurrentNet0.00.0218.6
Percentage of Assets0.10.10.1
Percentage of Assets nova:HeliosIIIssuerLLC0.00.00.0

nova:HeliosIVIssuerLLC


Deferred
Period End2021-06-302021-03-312020-12-31
Value3583000.03754000.03905000.0
Percentage of DeferredFinanceCostsNoncurrentNet0.00.0167.9
Percentage of Assets0.10.10.1
Percentage of Assets nova:HeliosIVIssuerLLC0.00.00.0

nova:HeliosIssuerLLC


Deferred
Period End2021-03-312020-12-31
Value3607000.04004000.0
Percentage of DeferredFinanceCostsNoncurrentNet0.0172.1
Percentage of Assets0.10.1
Percentage of Assets nova:HeliosIssuerLLC0.00.0

nova:HeliosVIssuerLLC


Deferred
Period End2021-06-302021-03-31
Value3484000.03607000.0
Percentage of DeferredFinanceCostsNoncurrentNet0.00.0
Percentage of Assets0.10.1
Percentage of Assets nova:HeliosVIssuerLLC0.00.0

nova:SunnovaRAYSIIssuerLLC


Deferred
Period End2021-06-302021-03-312020-12-31
Value4122000.04229000.04334000.0
Percentage of DeferredFinanceCostsNoncurrentNet0.00.0186.3
Percentage of Assets0.10.10.1
Percentage of Assets nova:SunnovaRAYSIIssuerLLC0.00.00.0

nova:SunnovaSolIIIIssuerLLC


Deferred
Period End2021-06-30
Value6687000.0
Percentage of DeferredFinanceCostsNoncurrentNet0.0
Percentage of Assets0.1
Percentage of Assets nova:SunnovaSolIIIIssuerLLC0.0

nova:SunnovaSolIIIssuerLLC


Deferred
Period End2021-06-302021-03-312020-12-31
Value5725000.05825000.05866000.0
Percentage of DeferredFinanceCostsNoncurrentNet0.00.0252.2
Percentage of Assets0.10.20.2
Percentage of Assets nova:SunnovaSolIIIssuerLLC0.00.00.0

nova:SunnovaSolIssuerLLC


Deferred
Period End2021-06-302021-03-312020-12-31
Value8405000.08660000.08915000.0
Percentage of DeferredFinanceCostsNoncurrentNet0.00.0383.3
Percentage of Assets0.20.20.2
Percentage of Assets nova:SunnovaSolIssuerLLC0.00.00.0

nova:SunnovaTEPInventoryLLC


Deferred
Period End2021-03-312020-12-31
Value1442000.01758000.0
Percentage of DeferredFinanceCostsNoncurrentNet0.075.6
Percentage of Assets0.00.0
Percentage of Assets nova:SunnovaTEPInventoryLLC0.00.0

us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

a12344345:SEI, a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, a12344345:ConvertibleSeniorNotes


Deferred
Period End2020-12-312020-09-302020-06-302019-12-31
Value239000.0416000.01158000.0480000.0
Percentage of DeferredFinanceCostsNoncurrentNet10.317.748.719.9
Percentage of Assets0.00.00.00.0
Percentage of Assets a12344345:SEI a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive a12344345:ConvertibleSeniorNotes0.00.00.00.0

nova:SEI, nova:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, nova:ConvertibleSeniorNotes


Deferred
Period End2020-12-31
Value239000.0
Percentage of DeferredFinanceCostsNoncurrentNet10.3
Percentage of Assets0.0
Percentage of Assets nova:SEI nova:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive nova:ConvertibleSeniorNotes0.0

us-gaap:DeferredFinanceCostsNoncurrentNet dei:LegalEntity, us-gaap:LongtermDebtType

nova:SEI, us-gaap:ConvertibleDebt


Deferred
Period End2021-06-302020-12-31
Value473000.0239000.0
Percentage of DeferredFinanceCostsNoncurrentNet0.010.3
Percentage of Assets0.00.0
Percentage of Assets nova:SEI us-gaap:ConvertibleDebt0.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value20520019215245
Percentage of MinorityInterest100.0100.0100.0100.0100.0
Percentage of Assets4.55.35.44.81.8

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value109.8859.7428.8468.849.1139.3899.6572.1722.083
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.30.30.30.30.30.40.40.10.1

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302018-12-31
Value1944000.01594000.01559000.01559000.01536000.01019000.01068000.0842000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.10.00.10.1

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302018-12-31
Value1616000.01616000.01594000.01594000.01559000.01521000.01095000.0863000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.10.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302018-12-31
Value1633000.01633000.01616000.01616000.01594000.01559000.0649000.0512000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.10.10.10.00.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302018-12-31
Value1633000.01616000.01594000.000
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0100.00.00.0
Percentage of Assets0.00.10.10.00.0

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302018-12-31
Value5984000.07617000.09234000.000
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.00.00.0
Percentage of Assets0.20.30.40.00.0

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302018-12-31
Value1110109.9219.945103.112.954
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.30.30.40.50.20.2

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302018-12-31
Value1413131414153.3433.206
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.40.40.50.60.70.20.2

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302018-12-31
Value1953000.02021000.02136000.02254000.02603000.02703000.0233000.0252000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.10.10.10.10.10.00.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value10661022951722661592645626441473501512454461371325
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.427.226.522.923.122.126.029.122.60.030.10.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-31
Value10218540.0
Percentage of StockholdersEquity107.3132.30.0
Percentage of Assets28.534.40.0
Percentage of Assets srt:ParentCompany94.595.80.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value127212231144875767703691662441473501371
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.932.631.927.826.826.227.830.822.60.030.10.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:CumulativeEffectPeriodOfAdoption

srt:CumulativeEffectPeriodOfAdoptionAdjustment


Stockholders
Period End2020-12-312019-12-31
Value2.254-9.908
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.2-1.4
Percentage of Assets0.1-0.4
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment0.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:Parent


Stockholders
Period End2020-12-312019-12-31
Value2.254-9.908
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.2-1.4
Percentage of Assets0.1-0.4
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:Parent0.00.0

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:RetainedEarnings


Stockholders
Period End2020-12-312019-12-31
Value2.254-9.908
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.2-1.4
Percentage of Assets0.1-0.4
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:RetainedEarnings0.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

a12344345:AdditionalPaidinCapitalCommonStock


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1482119810881010100799186858582
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest129.5136.9141.8143.6145.8149.819.618.117.022.2
Percentage of Assets41.338.037.937.740.546.14.40.05.10.0
Percentage of Assets a12344345:AdditionalPaidinCapitalCommonStock0.00.00.00.00.00.00.00.00.00.0

nova:AdditionalPaidinCapitalCommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value159615471482108810101007
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest125.5126.4129.5141.8143.6145.8
Percentage of Assets35.041.241.337.937.740.5
Percentage of Assets nova:AdditionalPaidinCapitalCommonStock0.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value0.0110.0110.010.0090.0080.0080.0080.008
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value2052001921521051114535
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest16.216.416.817.513.815.96.55.4
Percentage of Assets4.55.35.44.83.74.21.81.7
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.0

us-gaap:Parent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value10661022951722661592645626441473501371
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest83.883.683.282.586.284.193.594.6100.0100.0100.0100.0
Percentage of Assets23.427.226.522.923.122.126.029.122.60.030.10.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value-529.936-524.511-530.995-476.095-426.543-418.643-361.824-365.384-347.152-314.711-286.312-242.757
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-41.6-42.9-46.4-54.4-55.6-59.5-52.4-55.2-78.6-66.5-57.1-65.4
Percentage of Assets-11.6-14.0-14.8-15.1-14.9-15.6-14.5-17.0-17.80.0-17.20.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value11000.011000.010000.09000.08000.08000.08000.08000.00
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.0

us-gaap:CommonStockValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Common
Period End2020-12-312019-12-312018-12-31
Value10000.08000.00
Percentage of CommonStockValue100.0100.00.0
Percentage of Assets0.00.00.0
Percentage of Assets srt:ParentCompany0.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value15961547148211981088101010079918685
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets35.041.241.338.037.937.740.546.14.45.1

us-gaap:AdditionalPaidInCapitalCommonStock us-gaap:ConsolidatedEntities

srt:ParentCompany


Additional
Period End2020-12-312019-12-312018-12-31
Value14629870.0
Percentage of AdditionalPaidInCapitalCommonStock98.698.00.0
Percentage of Assets40.839.70.0
Percentage of Assets srt:ParentCompany135.3110.70.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-529940000.0-524510000.0-531000000.0-476100000.0-426540000.0-418640000.0-361820000.0-365380000.0-347150000.0-286310000.0
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-11.6-14.0-14.8-15.1-14.9-15.6-14.5-17.0-17.8-17.2

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidatedEntities

srt:ParentCompany


Retained
Period End2020-12-312019-12-312018-12-31
Value-441250000.0-133430000.00
Percentage of RetainedEarningsAccumulatedDeficit83.136.9-0.0
Percentage of Assets-12.3-5.40.0
Percentage of Assets srt:ParentCompany-40.8-15.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value20520019215245
Percentage of MinorityInterest100.0100.0100.0100.0100.0
Percentage of Assets4.55.35.44.81.8

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-03-312018-09-302018-03-31
Value138651520.5580.2141640.004-0.00197
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

a12344345:AdditionalPaidinCapitalCommonStock


Stock
Period End2020-09-302020-06-302020-03-312019-09-302019-03-312018-09-30
Value1520.5580.2141640.004-0.001
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets a12344345:AdditionalPaidinCapitalCommonStock0.00.00.00.00.00.0

nova:AdditionalPaidinCapitalCommonStock


Stock
Period End2021-06-302021-03-312020-06-302020-03-31
Value138650.5580.214
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0
Percentage of Assets nova:AdditionalPaidinCapitalCommonStock0.00.00.00.0

us-gaap:Parent


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-03-31
Value138651520.5580.2141640.004
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.0

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2.927.9242.3453.3542.695.980.7130.2810.7740.6820.726
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

a12344345:AdditionalPaidinCapitalCommonStock


Adjustments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2.3453.3542.695.980.7130.2810.7740.6820.726
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.0
Percentage of Assets a12344345:AdditionalPaidinCapitalCommonStock0.00.00.00.00.00.00.00.00.0

nova:AdditionalPaidinCapitalCommonStock


Adjustments
Period End2021-06-302021-03-312020-06-302020-03-31
Value2.927.9243.3542.69
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0
Percentage of Assets nova:AdditionalPaidinCapitalCommonStock0.00.00.00.0

us-gaap:Parent


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2.927.9242.3453.3542.695.980.7130.281
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.0

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2300000.01743000.0773000.01227000.01373000.01146000.01491000.03652000.0533000.0450000.0339000.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-09-302020-06-30
Value2300000.01743000.0773000.016000.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.01.3
Percentage of Assets0.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-60.776-49.908-29.67-18.868-24.816-58.112-95.724-18.844-31.264-24.4313-4.681
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-91.3-120.9-78.0-37.6-58.0-194.8-284.8-51.5-90.3-91.454.2-15.4

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-282980000.0-226210000.0-235240000.0-236680000.0-173280000.0-184320000.0-178620000.0-172290000.0-124730000.0-92680000.0-89017000.0-87989000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-425.2-548.0-618.7-471.7-405.0-617.9-531.4-470.5-360.4-346.9-353.2-289.2

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value54916143128221326131520017610962110
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax825.5391.71133.8563.6498.5876.2938.2548.7509.1409.3247.8362.2

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value205-114.43166271518419.77520-7.759-12.88217
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax309.0-277.2437.154.335.563.5122.026.758.4-29.0-51.157.7

Amortization Of Financing Costs

us-gaap:AmortizationOfFinancingCosts

us-gaap:AmortizationOfFinancingCosts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value6.6692.1642.251.3721.9153.4941.0271.0251.4466.3242.5862.125
Percentage of AmortizationOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-1.518-0.7562.133-2.568-14.474130.1362.877-4.4926.771-0.8510.434
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value7530000.01771000.01512000.0844000.0-814000.02755000.01343000.01409000.05430000.01167000.0-2691000.03192000.0
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-60.776-49.908-29.67-18.868-24.816-58.112-95.724-18.844-31.264-24.4313-4.681
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-91.3-120.9-78.0-37.6-58.0-194.8-284.8-51.5-90.3-91.454.2-15.4

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-63396000.0-32983000.0-91770000.0-64181000.0-25258000.0-71075000.0-17509000.0-37590000.0-50738000.0-38514000.0-40828000.0-6634000.0-12574000.0-14210000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-95.3-79.9-241.3-127.9-59.0-238.3-52.1-102.7-146.6-144.2-162.0-21.8-43.4-71.8

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-66272000.0-24064000.0-128790000.0-73294000.0-28729000.0-77004000.0-13762000.0-34369000.0-49807000.0-35496000.0-39102000.0-6647000.0-9224000.0-13436000.0
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-99.6-58.3-338.7-146.1-67.1-258.2-40.9-93.9-143.9-132.9-155.1-21.8-31.8-67.9

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.927.9242.4842.3453.3542.692.2615.980.7130.2810.8020.774
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-282980000.0-226210000.0-235240000.0-236680000.0-173280000.0-184320000.0-178620000.0-172290000.0-124730000.0-92680000.0-89017000.0-87989000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-425.2-548.0-618.7-471.7-405.0-617.9-531.4-470.5-360.4-346.9-353.2-289.2

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value11811713816513314113113495686860
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments To Acquire Investments

us-gaap:PaymentsToAcquireInvestments

us-gaap:PaymentsToAcquireInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value182122104814850544234272730
Percentage of PaymentsToAcquireInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value54916143128221326131520017610962110
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax825.5391.71133.8563.6498.5876.2938.2548.7509.1409.3247.8362.2

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateStatedPercentage

a12344345:SunnovaSolIIIssuerLLC, a12344345:SOLIISeries20202ClassA, us-gaap:AssetBackedSecurities


Debt
Period End2020-11-30
Value2.73
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations a12344345:SunnovaSolIIIssuerLLC a12344345:SOLIISeries20202ClassA us-gaap:AssetBackedSecurities0.0

a12344345:SunnovaSolIIIssuerLLC, a12344345:SOLIISeries20202ClassB, us-gaap:AssetBackedSecurities


Debt
Period End2020-11-30
Value5.47
Percentage of DebtInstrumentInterestRateStatedPercentage200.4
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations a12344345:SunnovaSolIIIssuerLLC a12344345:SOLIISeries20202ClassB us-gaap:AssetBackedSecurities0.0

nova:SEI, nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySix, us-gaap:ConvertibleDebt


Debt
Period End2021-05-31
Value0.25
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations nova:SEI nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySix us-gaap:ConvertibleDebt0.0

us-gaap:DebtInstrumentInterestRateStatedPercentage dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

a12344345:SunnovaHeliosVIssuerLLC, a12344345:HELVSeries2021AClassA, a12344345:LoanBackedNotes, us-gaap:SubsequentEvent


Debt
Period End2021-02-25
Value1.8
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations a12344345:SunnovaHeliosVIssuerLLC a12344345:HELVSeries2021AClassA a12344345:LoanBackedNotes us-gaap:SubsequentEvent0.0

a12344345:SunnovaHeliosVIssuerLLC, a12344345:HELVSeries2021AClassB, a12344345:LoanBackedNotes, us-gaap:SubsequentEvent


Debt
Period End2021-02-25
Value3.15
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations a12344345:SunnovaHeliosVIssuerLLC a12344345:HELVSeries2021AClassB a12344345:LoanBackedNotes us-gaap:SubsequentEvent0.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312017-12-31
Value16.6716.6616.0616.2115.8315.8115.8615.8615.8615.915.65
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-31
Value334284246
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0

a12344345:AccruedInvestmentIncomeReceivableWriteOff us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

a12344345:AccruedInvestmentIncomeReceivableWriteOff

us-gaap:NotesReceivable


Accrued
Period End2020-12-312020-09-302020-06-302019-06-30
Value-9000.09000.000
Percentage of AccruedInvestmentIncomeReceivableWriteOff100.0100.00.00.0

a12344345:AssetRetirementObligationOther

a12344345:AssetRetirementObligationOther


Asset
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-26000.0-25000.0-18000.0-15000.0-15000.0-11000.0-12000.0-9000.0-68000.0-23000.0
Percentage of AssetRetirementObligationOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuableAsContingentConsideration us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

a12344345:BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuableAsContingentConsideration

a12344345:SunStreetEnergyGroupLLC, us-gaap:SubsequentEvent


Business
Period End2021-02-25
Value3888900.0
Percentage of BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuableAsContingentConsideration100.0

a12344345:BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuedAtClosing us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

a12344345:BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuedAtClosing

a12344345:SunStreetEnergyGroupLLC, us-gaap:SubsequentEvent


Business
Period End2021-02-25
Value3333300.0
Percentage of BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuedAtClosing100.0

a12344345:ChangeInAccountsPayableAndAccruedExpensesRelatedToFinancingCosts

a12344345:ChangeInAccountsPayableAndAccruedExpensesRelatedToFinancingCosts


Change
Period End2020-09-302019-09-30
Value-204000.0-4339000.0
Percentage of ChangeInAccountsPayableAndAccruedExpensesRelatedToFinancingCosts100.0100.0

a12344345:ChangeInAccountsPayableAndAccruedExpensesRelatedToPaymentsForInvestments

a12344345:ChangeInAccountsPayableAndAccruedExpensesRelatedToPaymentsForInvestments


Change
Period End2020-12-312020-09-302019-12-312019-09-302018-12-312018-09-30
Value-5954000.0-4691000.0-4222000.0-1966000.0-2382000.0-3344000.0
Percentage of ChangeInAccountsPayableAndAccruedExpensesRelatedToPaymentsForInvestments100.0100.0100.0100.0100.0100.0

a12344345:ChangeInCapitalExpendituresIncurredButNotYetPaid

a12344345:ChangeInCapitalExpendituresIncurredButNotYetPaid


Change
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value137.921-9.6759.3571.376-2.7671512-4.5636.618
Percentage of ChangeInCapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:DebtInstrumentDiscountRate dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

a12344345:DebtInstrumentDiscountRate

a12344345:SunnovaSolIIIssuerLLC, a12344345:SOLIISeries20202ClassA, us-gaap:AssetBackedSecurities


Debt
Period End2020-11-30
Value0.03
Percentage of DebtInstrumentDiscountRate100.0

a12344345:SunnovaSolIIIssuerLLC, a12344345:SOLIISeries20202ClassB, us-gaap:AssetBackedSecurities


Debt
Period End2020-11-30
Value0.05
Percentage of DebtInstrumentDiscountRate166.7

a12344345:DebtInstrumentDiscountRate dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

a12344345:SunnovaHeliosVIssuerLLC, a12344345:HELVSeries2021AClassA, a12344345:LoanBackedNotes, us-gaap:SubsequentEvent


Debt
Period End2021-02-25
Value0.001
Percentage of DebtInstrumentDiscountRate0.0

a12344345:SunnovaHeliosVIssuerLLC, a12344345:HELVSeries2021AClassB, a12344345:LoanBackedNotes, us-gaap:SubsequentEvent


Debt
Period End2021-02-25
Value2.487
Percentage of DebtInstrumentDiscountRate0.0

a12344345:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsRealizedGainLossNet us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

a12344345:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsRealizedGainLossNet

us-gaap:InterestRateContract, us-gaap:InterestExpense


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-12.658-0.665-6.105-31.898-0.558-0.265-8.788-3.58416-0.168-0.147
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsRealizedGainLossNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:DistributionsToRedeemableNoncontrollingInterests

a12344345:DistributionsToRedeemableNoncontrollingInterests


Distributions
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1111000.01211000.01373000.01146000.01491000.03652000.0
Percentage of DistributionsToRedeemableNoncontrollingInterests100.0100.0100.0100.0100.0100.0

a12344345:FinanceReceivablesAllowanceForCreditLossOtherNet

a12344345:FinanceReceivablesAllowanceForCreditLossOtherNet


Finance
Period End2020-09-302020-06-302020-03-312019-06-302019-03-31
Value-1000.00-1000.024000.0-24000.0
Percentage of FinanceReceivablesAllowanceForCreditLossOtherNet100.00.0100.0100.0100.0

a12344345:NoncontrollingInterestDecreaseFromCostsRelatedToNoncontrollingInterestHolders

a12344345:NoncontrollingInterestDecreaseFromCostsRelatedToNoncontrollingInterestHolders


Noncontrolling
Period End2020-09-302020-06-302020-03-312019-09-30
Value1007000.0604000.0894000.02322000.0
Percentage of NoncontrollingInterestDecreaseFromCostsRelatedToNoncontrollingInterestHolders100.0100.0100.0100.0

a12344345:NoncontrollingInterestDecreaseFromCostsRelatedToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Noncontrolling
Period End2020-09-302020-06-302020-03-312019-09-30
Value1007000.0604000.0894000.02322000.0
Percentage of NoncontrollingInterestDecreaseFromCostsRelatedToNoncontrollingInterestHolders100.0100.0100.0100.0

a12344345:NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders

a12344345:NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders


Noncontrolling
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.27918102693218161717
Percentage of NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders dei:LegalEntity, us-gaap:StatementClassOfStock

a12344345:SunnovaTEPIVELLC, a12344345:ClassAMembers


Noncontrolling
Period End2020-09-30
Value75
Percentage of NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders26881.7

a12344345:SunnovaTEPIVFLLC, a12344345:ClassAMembers


Noncontrolling
Period End2020-07-31
Value10.0
Percentage of NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders0.0

a12344345:NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders dei:LegalEntity, us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType

a12344345:SunnovaTEPIVFLLC, a12344345:ClassAMembers, us-gaap:SubsequentEvent


Noncontrolling
Period End2020-07-30
Value10.0
Percentage of NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders0.0

a12344345:NumberOfCustomers

a12344345:NumberOfCustomers


Number
Period End2020-12-31
Value9000.0
Percentage of NumberOfCustomers100.0

a12344345:OperationsAndMaintenanceExpense

a12344345:OperationsAndMaintenanceExpense


Operations
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.6993.4692.9262.2192.121.9252.2892.254
Percentage of OperationsAndMaintenanceExpense100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:PaymentsForOtherCommitments

a12344345:PaymentsForOtherCommitments


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.47.7115.30.09.7202.0
Percentage of PaymentsForOtherCommitments100.0100.0100.0100.00.0100.0100.0100.0

a12344345:PaymentsOfCostsRelatedToNoncontrollingInterests

a12344345:PaymentsOfCostsRelatedToNoncontrollingInterests


Payments
Period End2020-12-312019-12-31
Value2409000.02240000.0
Percentage of PaymentsOfCostsRelatedToNoncontrollingInterests100.0100.0

a12344345:PaymentsOfDebtDiscounts

a12344345:PaymentsOfDebtDiscounts


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value242000.002903000.0229000.000559000.0525000.0582000.01813000.0
Percentage of PaymentsOfDebtDiscounts100.00.0100.0100.00.00.0100.0100.0100.0100.0

a12344345:ProceedsFromStateUtilityRebates

a12344345:ProceedsFromStateUtilityRebates


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value314000.0155000.037000.0135000.0267000.0174000.0116000.0111000.0162000.0241000.0
Percentage of ProceedsFromStateUtilityRebates100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:ReallocationOfAssetBasis

a12344345:ReallocationOfAssetBasis


Reallocation
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.71817241918106.3895.5925.995
Percentage of ReallocationOfAssetBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:ReallocationOfAssetBasis us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Reallocation
Period End2020-09-302020-06-302020-03-312019-09-30
Value-13.911-17.29-24.309-14.251
Percentage of ReallocationOfAssetBasis-1937.5-99.6-100.6-73.6

us-gaap:Parent


Reallocation
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value141724191810
Percentage of ReallocationOfAssetBasis2037.5100.0100.0100.0100.0100.0

us-gaap:RetainedEarnings


Reallocation
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1417241918106.3895.5925.995
Percentage of ReallocationOfAssetBasis2037.5100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:RedeemableNoncontrollingInterestReallocationOfBasis

a12344345:RedeemableNoncontrollingInterestReallocationOfBasis


Redeemable
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.71817241918106.3895.5925.995
Percentage of RedeemableNoncontrollingInterestReallocationOfBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:SaleOfStockIssuanceCostsOfferingExpense us-gaap:SubsidiarySaleOfStock

a12344345:SaleOfStockIssuanceCostsOfferingExpense

a12344345:PublicStockOffering


Sale
Period End2020-12-31
Value300000.0
Percentage of SaleOfStockIssuanceCostsOfferingExpense100.0

a12344345:SaleOfStockIssuanceCostsUnderwriterDiscountsAndCommissions us-gaap:SubsidiarySaleOfStock

a12344345:SaleOfStockIssuanceCostsUnderwriterDiscountsAndCommissions

a12344345:PublicStockOffering


Sale
Period End2020-12-31
Value6.0
Percentage of SaleOfStockIssuanceCostsUnderwriterDiscountsAndCommissions100.0

a12344345:TransfersOfInventoryToPropertyAndEquipmentNetAndCustomerNotesReceivable

a12344345:TransfersOfInventoryToPropertyAndEquipmentNetAndCustomerNotesReceivable


Transfers
Period End2020-09-302019-09-30
Value170.373
Percentage of TransfersOfInventoryToPropertyAndEquipmentNetAndCustomerNotesReceivable100.0100.0

nova:APICCappedCallTransaction

nova:APICCappedCallTransaction


A
Period End2021-05-312021-06-30
Value9191
Percentage of APICCappedCallTransaction100.0100.0

nova:APICCappedCallTransaction us-gaap:StatementEquityComponents

nova:AdditionalPaidinCapitalCommonStock


A
Period End2021-06-30
Value91
Percentage of APICCappedCallTransaction100.0

us-gaap:Parent


A
Period End2021-06-30
Value91
Percentage of APICCappedCallTransaction100.0

nova:AccountsReceivableAllowanceForCreditLossOtherNet

nova:AccountsReceivableAllowanceForCreditLossOtherNet


Accounts
Period End2021-06-302020-06-302020-03-31
Value1000.0-1000.01000.0
Percentage of AccountsReceivableAllowanceForCreditLossOtherNet100.0100.0100.0

nova:AssetRetirementObligationOther

nova:AssetRetirementObligationOther


Asset
Period End2021-06-302021-03-312020-06-302020-03-31
Value-24000.0-16000.0-18000.0-15000.0
Percentage of AssetRetirementObligationOther100.0100.0100.0100.0

nova:BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuableAsContingentConsideration us-gaap:BusinessAcquisition

nova:BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuableAsContingentConsideration

nova:SunStreetEnergyGroupLLC


Business
Period End2021-02-28
Value3888900.0
Percentage of BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuableAsContingentConsideration100.0

nova:BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuedAtClosing us-gaap:BusinessAcquisition

nova:BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuedAtClosing

nova:SunStreetEnergyGroupLLC


Business
Period End2021-02-28
Value3095300.0
Percentage of BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesIssuedAtClosing100.0

nova:CapitalCommitmentsFromInvestors

nova:CapitalCommitmentsFromInvestors


Capital
Period End2021-06-30
Value1100
Percentage of CapitalCommitmentsFromInvestors100.0

nova:ChangeInAccountsPayableAndAccruedExpensesRelatedToPaymentsForInvestments

nova:ChangeInAccountsPayableAndAccruedExpensesRelatedToPaymentsForInvestments


Change
Period End2021-06-302021-03-312020-06-302020-03-31
Value-8507000.0-9107000.0-3215000.0-4523000.0
Percentage of ChangeInAccountsPayableAndAccruedExpensesRelatedToPaymentsForInvestments100.0100.0100.0100.0

nova:ChangeInCapitalExpendituresIncurredButNotYetPaid

nova:ChangeInCapitalExpendituresIncurredButNotYetPaid


Change
Period End2021-06-302021-03-312020-06-302020-03-31
Value143.272-9.6759.357
Percentage of ChangeInCapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0

nova:DebtInstrumentDiscountRate dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nova:DebtInstrumentDiscountRate

nova:HeliosVIssuerLLC, nova:HELVSeries2021AClassA, nova:LoanBackedNotes


Debt
Period End2021-02-28
Value0.001
Percentage of DebtInstrumentDiscountRate100.0

nova:HeliosVIssuerLLC, nova:HELVSeries2021AClassB, nova:LoanBackedNotes


Debt
Period End2021-02-28
Value2.487
Percentage of DebtInstrumentDiscountRate248700.0

nova:SEI, nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySix, us-gaap:ConvertibleDebt


Debt
Period End2021-05-31
Value2.5
Percentage of DebtInstrumentDiscountRate0.0

nova:DebtInstrumentDiscountRate dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

nova:HeliosVIIssuerLLC, nova:HELVISeries2021BClassA, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables, us-gaap:SubsequentEvent


Debt
Period End2021-07-29
Value0.01
Percentage of DebtInstrumentDiscountRate0.0

nova:HeliosVIIssuerLLC, nova:HELVISeries2021BClassB, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables, us-gaap:SubsequentEvent


Debt
Period End2021-07-29
Value0.04
Percentage of DebtInstrumentDiscountRate0.0

nova:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsRealizedGainLossNet us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

nova:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsRealizedGainLossNet

us-gaap:InterestRateContract, us-gaap:InterestExpense


Derivative
Period End2021-06-302021-03-312020-06-302020-03-31
Value-516000.0-591000.0-6105000.0-31898000.0
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsRealizedGainLossNet100.0100.0100.0100.0

nova:DistributionsToRedeemableNoncontrollingInterests

nova:DistributionsToRedeemableNoncontrollingInterests


Distributions
Period End2021-06-302021-03-312020-06-302020-03-31
Value1128000.01090000.01211000.01373000.0
Percentage of DistributionsToRedeemableNoncontrollingInterests100.0100.0100.0100.0

nova:FinanceReceivablesAllowanceForCreditLossOtherNet

nova:FinanceReceivablesAllowanceForCreditLossOtherNet


Finance
Period End2021-06-302020-06-302020-03-31
Value1000.00-1000.0
Percentage of FinanceReceivablesAllowanceForCreditLossOtherNet100.00.0100.0

nova:NoncontrollingInterestDecreaseFromCostsRelatedToNoncontrollingInterestHolders

nova:NoncontrollingInterestDecreaseFromCostsRelatedToNoncontrollingInterestHolders


Noncontrolling
Period End2021-06-302021-03-312020-06-302020-03-31
Value3035000.055000.0604000.0894000.0
Percentage of NoncontrollingInterestDecreaseFromCostsRelatedToNoncontrollingInterestHolders100.0100.0100.0100.0

nova:NoncontrollingInterestDecreaseFromCostsRelatedToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Noncontrolling
Period End2021-06-302021-03-312020-06-302020-03-31
Value3035000.055000.0604000.0894000.0
Percentage of NoncontrollingInterestDecreaseFromCostsRelatedToNoncontrollingInterestHolders100.0100.0100.0100.0

nova:NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders dei:LegalEntity

nova:NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders

nova:LennarCorporation


Noncontrolling
Period End2021-04-30
Value200
Percentage of NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders100.0

nova:NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders dei:LegalEntity, us-gaap:StatementClassOfStock

nova:SunnovaTEPVA, nova:ClassAMembers


Noncontrolling
Period End2021-04-30
Value25
Percentage of NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders12.5

nova:SunnovaTEPVB, nova:ClassAMembers


Noncontrolling
Period End2021-05-31
Value150
Percentage of NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders0.0

nova:SunnovaTEPVD, nova:ClassAMembers


Noncontrolling
Period End2021-04-30
Value50
Percentage of NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders25.0

nova:NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders dei:LegalEntity, us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType

nova:SunnovaTEPVC, nova:ClassAMembers, us-gaap:SubsequentEvent


Noncontrolling
Period End2021-07-29
Value150
Percentage of NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders0.0

nova:SunnovaTEPVD, nova:ClassAMembers, us-gaap:SubsequentEvent


Noncontrolling
Period End2021-04-29
Value50
Percentage of NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterestHolders0.0

nova:NumberOfCustomers

nova:NumberOfCustomers


Number
Period End2021-06-302021-03-31
Value46000.0116000.0
Percentage of NumberOfCustomers100.0100.0

nova:OperatingLeasesLeaseholdImprovementsReimbursements

nova:OperatingLeasesLeaseholdImprovementsReimbursements


Operating
Period End2021-06-302021-03-31
Value0423000.0
Percentage of OperatingLeasesLeaseholdImprovementsReimbursements0.0100.0

nova:OperationsAndMaintenanceExpense

nova:OperationsAndMaintenanceExpense


Operations
Period End2021-06-302021-03-312020-06-302020-03-31
Value4985000.03620000.02926000.02219000.0
Percentage of OperationsAndMaintenanceExpense100.0100.0100.0100.0

nova:PaymentsForOtherCommitments

nova:PaymentsForOtherCommitments


Payments
Period End2021-06-302021-03-312020-06-302020-03-31
Value163.7115.3
Percentage of PaymentsForOtherCommitments100.0100.0100.0100.0

nova:PaymentsOfCostsRelatedToNoncontrollingInterests

nova:PaymentsOfCostsRelatedToNoncontrollingInterests


Payments
Period End2021-06-302021-03-312020-06-302020-03-31
Value3632000.03146000.0892000.01295000.0
Percentage of PaymentsOfCostsRelatedToNoncontrollingInterests100.0100.0100.0100.0

nova:PaymentsOfDebtDiscounts

nova:PaymentsOfDebtDiscounts


Payments
Period End2021-06-302021-03-312020-06-302020-03-31
Value2304000.020000.02903000.0229000.0
Percentage of PaymentsOfDebtDiscounts100.0100.0100.0100.0

nova:ProceedsFromStateUtilityRebates

nova:ProceedsFromStateUtilityRebates


Proceeds
Period End2021-06-302021-03-312020-06-302020-03-31
Value162000.0111000.037000.0135000.0
Percentage of ProceedsFromStateUtilityRebates100.0100.0100.0100.0

nova:ReallocationOfAssetBasis

nova:ReallocationOfAssetBasis


Reallocation
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.002-0.040.068-0.145
Percentage of ReallocationOfAssetBasis100.0100.0100.0100.0

nova:ReallocationOfAssetBasis us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Reallocation
Period End2021-06-302021-03-312020-06-302020-03-31
Value-57.973-37.253-17.29-24.309
Percentage of ReallocationOfAssetBasis2898650.093132.5-25426.516764.8

us-gaap:Parent


Reallocation
Period End2021-06-302021-03-312020-06-302020-03-31
Value57371724
Percentage of ReallocationOfAssetBasis-2898550.0-93032.525526.5-16664.8

us-gaap:RetainedEarnings


Reallocation
Period End2021-06-302021-03-312020-06-302020-03-31
Value57371724
Percentage of ReallocationOfAssetBasis-2898550.0-93032.525526.5-16664.8

nova:RedeemableNoncontrollingInterestReallocationOfBasis

nova:RedeemableNoncontrollingInterestReallocationOfBasis


Redeemable
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.002-0.040.068-0.145
Percentage of RedeemableNoncontrollingInterestReallocationOfBasis100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt


Adjustments
Period End2020-09-302020-06-30
Value-44.80873
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt us-gaap:StatementEquityComponents

a12344345:AdditionalPaidinCapitalCommonStock


Adjustments
Period End2020-09-302020-06-30
Value-44.80873
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt100.0100.0

us-gaap:Parent


Adjustments
Period End2020-09-302020-06-30
Value-44.80873
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments


Adjustments
Period End2021-03-312020-06-30
Value8807000.0-73657000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments us-gaap:StatementEquityComponents

nova:AdditionalPaidinCapitalCommonStock


Adjustments
Period End2021-03-312020-06-30
Value8807000.0-73657000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments100.0100.0

us-gaap:Parent


Adjustments
Period End2021-03-312020-06-30
Value8807000.0-73657000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableRecoveries

us-gaap:AllowanceForDoubtfulAccountsReceivableRecoveries


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value58000.036000.016000.017000.013000.09000.025000.016000.022000.027000.012000.012000.0
Percentage of AllowanceForDoubtfulAccountsReceivableRecoveries100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value490000.0496000.0474000.0419000.0463000.0385000.0422000.0412000.0363000.0301000.0256000.0206000.0
Percentage of AllowanceForDoubtfulAccountsReceivableWriteOffs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AmortizationOfDebtDiscountPremium


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value4.3271.723.484.5952.9474.6630.9910.7350.820.4720.3170.265
Percentage of AmortizationOfDebtDiscountPremium100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationAccretionExpense

us-gaap:AssetRetirementObligationAccretionExpense


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value697000.0652000.0609000.0564000.0524000.0489000.0454000.0349000.0327000.0313000.0292000.0278000.0
Percentage of AssetRetirementObligationAccretionExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationLiabilitiesIncurred

us-gaap:AssetRetirementObligationLiabilitiesIncurred


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2469000.02290000.02454000.02169000.01943000.02067000.01661000.01225000.0969000.0786000.0753000.0813000.0
Percentage of AssetRetirementObligationLiabilitiesIncurred100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferred1

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value208
Percentage of BusinessCombinationConsiderationTransferred1100.0

us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value127
Percentage of BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable100.0

us-gaap:BusinessCombinationConsiderationTransferredLiabilitiesIncurred us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferredLiabilitiesIncurred

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value81
Percentage of BusinessCombinationConsiderationTransferredLiabilitiesIncurred100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2200000.02500000.02300000.02800000.01203000.0997000.0700000.0800000.0847000.0653000.0
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CostOfGoodsAndServicesSoldDepreciation

us-gaap:CostOfGoodsAndServicesSoldDepreciation


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1817161514121210109.6539.2429.3498.274
Percentage of CostOfGoodsAndServicesSoldDepreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtConversionConvertedInstrumentAmount1

us-gaap:DebtConversionConvertedInstrumentAmount1


Debt
Period End2021-06-302021-03-312020-12-31
Value0.09565
Percentage of DebtConversionConvertedInstrumentAmount10.0100.0100.0

us-gaap:DebtConversionConvertedInstrumentAmount1 dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

a12344345:SEI, a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, a12344345:ConvertibleSeniorNotes


Debt
Period End2020-09-30
Value84
Percentage of DebtConversionConvertedInstrumentAmount10.0

nova:SEI, nova:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, nova:ConvertibleSeniorNotes


Debt
Period End2021-03-31
Value97
Percentage of DebtConversionConvertedInstrumentAmount1101.5

us-gaap:DebtConversionConvertedInstrumentAmount1 dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

a12344345:SEI, a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, a12344345:ConvertibleSeniorNotes, us-gaap:SubsequentEvent


Debt
Period End2021-02-252020-10-29
Value9732
Percentage of DebtConversionConvertedInstrumentAmount10.00.0

us-gaap:DebtInstrumentRedemptionPricePercentage dei:LegalEntity, us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentRedemptionPricePercentage

a12344345:SEI, us-gaap:DebtInstrumentRedemptionPeriodFour, a12344345:ConvertibleSeniorNotes


Debt
Period End2020-12-312020-09-30
Value0108.9
Percentage of DebtInstrumentRedemptionPricePercentage0.0100.0

a12344345:SEI, us-gaap:DebtInstrumentRedemptionPeriodOne, a12344345:ConvertibleSeniorNotes


Debt
Period End2020-12-312020-09-30
Value0113.85
Percentage of DebtInstrumentRedemptionPricePercentage0.0104.5

a12344345:SEI, us-gaap:DebtInstrumentRedemptionPeriodThree, a12344345:ConvertibleSeniorNotes


Debt
Period End2020-12-312020-09-30
Value0108.9
Percentage of DebtInstrumentRedemptionPricePercentage0.0100.0

a12344345:SEI, us-gaap:DebtInstrumentRedemptionPeriodTwo, a12344345:ConvertibleSeniorNotes


Debt
Period End2020-12-312020-09-30
Value0113.85
Percentage of DebtInstrumentRedemptionPricePercentage0.0104.5

us-gaap:DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed

a12344345:SEI, a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, us-gaap:DebtInstrumentRedemptionPeriodOne, a12344345:ConvertibleSeniorNotes


Debt
Period End2020-12-31
Value0
Percentage of DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed0.0

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value201918161514141211111010
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet

us-gaap:InterestRateContract, us-gaap:InterestExpense


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-16.289183.8651.123-3.052-39.49410-13.078-19.205-10.616-9.7536.8214.371
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestExpense


Finance
Period End2021-06-302021-03-31
Value7000.03000.0
Percentage of FinanceLeaseInterestExpense100.0100.0

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeaseInterestPaymentOnLiability


Finance
Period End2021-06-302021-03-31
Value7000.03000.0
Percentage of FinanceLeaseInterestPaymentOnLiability100.0100.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value75000.028000.01000.0001000.01000.02000.02000.03000.000
Percentage of FinanceLeasePrincipalPayments100.0100.0100.00.00.0100.0100.0100.0100.0100.00.00.0

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:FinanceLeaseRightOfUseAssetAmortization


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value69000.025000.01000.0002000.02000.02000.02000.02000.00000
Percentage of FinanceLeaseRightOfUseAssetAmortization100.0100.0100.00.00.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs


Financing
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value185000.0258000.000-1000.00039000.017000.0113000.0
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs100.0100.00.00.0100.00.00.0100.0100.0100.0

us-gaap:GainLossOnSalesOfAssetsAndAssetImpairmentCharges

us-gaap:GainLossOnSalesOfAssetsAndAssetImpairmentCharges


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-1286000.0-326000.0-4056000.0-546000.0-891000.0-331000.0-536000.0-385000.0-487000.0-364000.0-6330000.0-80000.0
Percentage of GainLossOnSalesOfAssetsAndAssetImpairmentCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeLossIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-66272000.0-24064000.0-128790000.0-73118000.0-28729000.0-77004000.0-13762000.0-34369000.0-49807000.0-35496000.0-39102000.0-6647000.0-9224000.0
Percentage of IncomeLossIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-5.082104.0627.4671.194-17.22717-0.462.46-4.4552.1472.149
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherCurrentAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value412613104.205-4.1241192.3960.3968.9613.9370.789
Percentage of IncreaseDecreaseInOtherCurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2541000.0-6869000.08178000.0-7412000.011077000.0-6446000.08377000.0-5287000.07568000.0-2206000.06582000.0-3471000.0
Percentage of IncreaseDecreaseInOtherCurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value217.5019.8711128.6822.33111223.9791.9582.971
Percentage of IncreaseDecreaseInOtherNoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-618000.0-1980000.0771000.01183000.0-3894000.0-1034000.03632000.0112000.0715000.0-2580000.0459000.0493000.0
Percentage of IncreaseDecreaseInOtherNoncurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeNonoperating

us-gaap:InvestmentIncomeNonoperating


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value7.9887.186.4425.9996.684.623.6153.4072.9672.4942.0771.7631.418
Percentage of InvestmentIncomeNonoperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeNonoperating us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:NotesReceivable


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value7.97.16.35.96.64.43.43.12.71.91.71.4
Percentage of InvestmentIncomeNonoperating98.998.997.898.398.895.294.191.091.091.596.498.7

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value811000.0635000.0608000.0608000.0513000.0361000.0638000.0607000.0517000.0517000.0420000.0425000.0410000.0401000.0
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtWeightedAverageInterestRateOverTime dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LongTermDebtWeightedAverageInterestRateOverTime

a12344345:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Long
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.095.65680.00640.0568
Percentage of LongTermDebtWeightedAverageInterestRateOverTime100.0100.0100.0100.0

a12344345:SunnovaTEPIIHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Long
Period End2020-12-312020-09-302020-06-302020-03-31
Value019.27500.1947
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.0340.70.0342.8

a12344345:TEPINV, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Long
Period End2020-09-302020-06-302020-03-31
Value10.047-0.00010.103
Percentage of LongTermDebtWeightedAverageInterestRateOverTime177.6-1.6181.3

nova:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Long
Period End2021-06-302021-03-31
Value0.255.56
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.00.0

nova:SunnovaEZOwnPortfolioLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Long
Period End2021-06-302021-03-31
Value-0.283.65
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.00.0

nova:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Long
Period End2021-06-302021-03-31
Value0.325.73
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.00.0

nova:SunnovaTEPInventoryLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Long
Period End2021-06-302021-03-31
Value9.9712.19
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.00.0

us-gaap:LongTermDebtWeightedAverageInterestRateOverTime dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

a12344345:SEI, a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, a12344345:ConvertibleSeniorNotes


Long
Period End2020-12-312020-09-30
Value0.1414.272
Percentage of LongTermDebtWeightedAverageInterestRateOverTime155.6252.3

a12344345:SEI, a12344345:SevenPointSevenFiveConvertibleSeniorNotes, a12344345:ConvertibleSeniorNotes


Long
Period End2020-12-312020-09-30
Value017.236
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.0304.7

nova:SEI, nova:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, nova:ConvertibleSeniorNotes


Long
Period End2021-03-31
Value21.7
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.0

us-gaap:LongTermDebtWeightedAverageInterestRateOverTime dei:LegalEntity, us-gaap:LongtermDebtType

a12344345:HeliosIIIIssuerLLC, a12344345:LoanBackedNotes


Long
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.013.95980.00030.0399
Percentage of LongTermDebtWeightedAverageInterestRateOverTime11.170.04.770.2

a12344345:HeliosIIIssuerLLC, us-gaap:AssetBackedSecurities


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value-0.025.67280.00040.0568-0.00010.0003
Percentage of LongTermDebtWeightedAverageInterestRateOverTime-22.2100.36.2100.00.00.0

a12344345:HeliosIVIssuerLLC, a12344345:LoanBackedNotes


Long
Period End2020-12-312020-09-30
Value0.063.8771
Percentage of LongTermDebtWeightedAverageInterestRateOverTime66.768.5

a12344345:HeliosIssuerLLC, us-gaap:AssetBackedSecurities


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value-0.046.5244-0.00020.0658-0.0001-0.0006
Percentage of LongTermDebtWeightedAverageInterestRateOverTime-44.4115.3-3.1115.80.00.0

a12344345:SunnovaAssetPortfolio4LLC, us-gaap:SecuredDebt


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value010.70200.1081-0.0021-0.0016
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.0189.20.0190.30.00.0

a12344345:SunnovaEZOwnPortfolioLLC, us-gaap:WarehouseAgreementBorrowings


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value-0.254.5955-0.00550.05-0.0054-0.0005
Percentage of LongTermDebtWeightedAverageInterestRateOverTime-277.881.2-85.988.00.00.0

a12344345:SunnovaEnergyCorporation, us-gaap:NotesPayableOtherPayables


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value-1.368.36070.03770.10160.0025
Percentage of LongTermDebtWeightedAverageInterestRateOverTime-1511.1147.8589.1178.90.0

a12344345:SunnovaLAPHoldingsLLC, us-gaap:SecuredDebt


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value1.239.9978-0.00850.1207-0.0008-0.0015
Percentage of LongTermDebtWeightedAverageInterestRateOverTime1366.7176.7-132.8212.50.00.0

a12344345:SunnovaRAYSIIssuerLLC, us-gaap:AssetBackedSecurities


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value05.4349-0.00020.0553-0.00030.0002
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.096.1-3.197.40.00.0

a12344345:SunnovaSolIssuerLLC, us-gaap:AssetBackedSecurities


Long
Period End2020-12-312020-09-302020-06-302020-03-31
Value03.8710.00260.0364
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.068.440.664.1

nova:HeliosIIIIssuerLLC, nova:LoanBackedNotes


Long
Period End2021-06-302021-03-31
Value0.024.06
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.00.0

nova:HeliosIIIssuerLLC, us-gaap:AssetBackedSecurities


Long
Period End2021-06-302021-03-31
Value-0.045.8
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.00.0

nova:HeliosIVIssuerLLC, nova:LoanBackedNotes


Long
Period End2021-06-302021-03-31
Value0.034.1
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.00.0

nova:HeliosIssuerLLC, us-gaap:AssetBackedSecurities


Long
Period End2021-06-302021-03-31
Value5.236.65
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.00.0

nova:HeliosVIssuerLLC, nova:LoanBackedNotes


Long
Period End2021-06-302021-03-31
Value0.082.31
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.00.0

nova:SunnovaEnergyCorporation, us-gaap:NotesPayableOtherPayables


Long
Period End2021-06-302021-03-31
Value6.088.39
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.00.0

nova:SunnovaRAYSIIssuerLLC, us-gaap:AssetBackedSecurities


Long
Period End2021-06-302021-03-31
Value-0.025.57
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.00.0

nova:SunnovaSolIIIssuerLLC, us-gaap:AssetBackedSecurities


Long
Period End2021-06-302021-03-31
Value-0.023.28
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.00.0

nova:SunnovaSolIssuerLLC, us-gaap:AssetBackedSecurities


Long
Period End2021-06-302021-03-31
Value-0.013.94
Percentage of LongTermDebtWeightedAverageInterestRateOverTime0.00.0

us-gaap:LossContingencyAccrualPayments us-gaap:LossContingenciesByNatureOfContingency

us-gaap:LossContingencyAccrualPayments

us-gaap:PerformanceGuarantee


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value10000.03246000.017000.027000.017000.03844000.049000.046000.037000.02545000.0115000.038000.0
Percentage of LossContingencyAccrualPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossContingencyAccrualProvision us-gaap:LossContingenciesByNatureOfContingency

us-gaap:LossContingencyAccrualProvision

us-gaap:PerformanceGuarantee


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value440000.0433000.0796000.0975000.0701000.0683000.0842000.0724000.01008000.0527000.0719000.0991000.0
Percentage of LossContingencyAccrualProvision100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossOnDerivativeInstrumentsPretax dei:LegalEntity, us-gaap:DerivativeInstrumentRisk

us-gaap:LossOnDerivativeInstrumentsPretax

nova:SunnovaEZOwnPortfolioLLC, us-gaap:InterestRateSwap


Loss
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.00.0685.9410.059
Percentage of LossOnDerivativeInstrumentsPretax0.0100.0100.0100.0

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.2362.114.268-3.471-5.9293.7473.2210.9313.0181.726-0.0133.350.774
Percentage of NetIncomeLossAttributableToRedeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-70508000.0-26174000.0-77562000.0-31598000.0-78580000.0-37397000.0-50738000.0-38514000.0
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value-7112000.06809000.0-13381000.0-6340000.0-7505000.0193000.0
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest10.1-26.017.320.19.6-0.5

us-gaap:Parent


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-63396000.0-32983000.0-64181000.0-25258000.0-71075000.0-37590000.0-50738000.0-38514000.0
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest89.9126.082.779.990.4100.5100.0100.0

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-63396000.0-32983000.0-64181000.0-25258000.0-71075000.0-37590000.0-50738000.0-38514000.0
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest89.9126.082.779.990.4100.5100.0100.0

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance


Noncontrolling
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value754076189952
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance100.0100.0100.0100.0100.0100.0

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Noncontrolling
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value754076189952
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value427000.0336000.0335000.0336000.0335000.0336000.0334000.0344000.0270000.0270000.0243000.0243000.0243000.0243000.0
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value469000.0-42000.0-797000.095000.0252000.011000.0435000.0294000.0250000.0275000.0225000.0221000.0
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-7386000.03644000.0-4396000.0-3264000.0-3878000.0-3424000.0-3805000.0-1188000.0-2449000.0-1000000.0-1217000.0-1043000.0
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:OtherOperatingIncomeExpenseNet


Other
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-4034000.013000.06000.016000.06000.032000.049000.062000.018000.0
Percentage of OtherOperatingIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaidInKindInterest

us-gaap:PaidInKindInterest


Paid
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value101000.0679000.000515000.01043000.01158000.01392000.01432000.0
Percentage of PaidInKindInterest100.0100.00.00.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-1294000.0-208000.02982000.0-460000.0-201000.0-289000.0-121000.0767000.0-97000.0-86000.0-4994000.0-46000.0
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value6.6666.2735.7671.4986.2101.6753.1671.9875.2816.8451.003
Percentage of PaymentsOfDebtIssuanceCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfStockIssuanceCosts

us-gaap:PaymentsOfStockIssuanceCosts


Payments
Period End2021-03-312020-06-302020-03-31
Value1037000.088000.041000.0
Percentage of PaymentsOfStockIssuanceCosts100.0100.0100.0

us-gaap:PaymentsToMinorityShareholders

us-gaap:PaymentsToMinorityShareholders


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3428000.02833000.02043000.01884000.01227000.01373000.01270000.01146000.01491000.03652000.0695000.0533000.0
Percentage of PaymentsToMinorityShareholders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromCollectionOfNotesReceivable

us-gaap:ProceedsFromCollectionOfNotesReceivable


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1713109.9388.156.947.5324.7365.5793.7571.9821.965
Percentage of ProceedsFromCollectionOfNotesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfCommonStock


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1484.398-0.088-0.041-0.243165-0.4840.0060.0
Percentage of ProceedsFromIssuanceOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ProceedsFromIssuanceOfOtherLongTermDebt

us-gaap:ProceedsFromIssuanceOfOtherLongTermDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value97131146824535358329562298227
Percentage of ProceedsFromIssuanceOfOtherLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMinorityShareholders

us-gaap:ProceedsFromMinorityShareholders


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value75401227618102376932182716
Percentage of ProceedsFromMinorityShareholders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-75000.0-28000.0-1000.000-1000.0-1000.0-8000.04000.0-11000.00-5000.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.00.00.0100.0100.0100.0100.0100.00.0100.0

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForDoubtfulAccounts


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value441000.0396000.0541000.0458000.0477000.0402000.0496000.0511000.0346000.0292000.0407000.0353000.0
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLeaseLosses

us-gaap:ProvisionForLeaseLosses


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value54000.062000.061000.061000.09000.053000.0
Percentage of ProvisionForLeaseLosses100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLossesExpensed

us-gaap:ProvisionForLoanLossesExpensed


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value5098000.03251000.03084000.01483000.01407000.01811000.0141000.05000.0162000.0111000.0115000.0-43000.0
Percentage of ProvisionForLoanLossesExpensed100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfDebt dei:LegalEntity

us-gaap:RepaymentsOfDebt

a12344345:SunnovaEZOwnPortfolioLLC


Repayments
Period End2020-10-312020-06-30
Value28149
Percentage of RepaymentsOfDebt100.0100.0

a12344345:SunnovaLAPHoldingsLLC


Repayments
Period End2020-11-302020-02-29
Value1032
Percentage of RepaymentsOfDebt0.00.0

us-gaap:RepaymentsOfDebt dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType

a12344345:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Repayments
Period End2020-11-30
Value211
Percentage of RepaymentsOfDebt0.0

nova:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Repayments
Period End2021-02-28
Value29
Percentage of RepaymentsOfDebt0.0

nova:SunnovaEZOwnPortfolioLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Repayments
Period End2021-02-28
Value107
Percentage of RepaymentsOfDebt0.0

nova:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Repayments
Period End2021-06-30
Value105
Percentage of RepaymentsOfDebt0.0

nova:SunnovaTEPInventoryLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Repayments
Period End2021-05-31
Value48
Percentage of RepaymentsOfDebt0.0

us-gaap:RepaymentsOfDebt dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

a12344345:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit, us-gaap:SubsequentEvent


Repayments
Period End2021-02-25
Value29
Percentage of RepaymentsOfDebt0.0

nova:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit, us-gaap:SubsequentEvent


Repayments
Period End2021-07-29
Value24
Percentage of RepaymentsOfDebt0.0

nova:SunnovaEZOwnPortfolioLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit, us-gaap:SubsequentEvent


Repayments
Period End2021-07-29
Value144
Percentage of RepaymentsOfDebt0.0

us-gaap:RepaymentsOfDebt dei:LegalEntity, us-gaap:LongtermDebtType

nova:HeliosIssuerLLC, us-gaap:AssetBackedSecurities


Repayments
Period End2021-06-30
Value205
Percentage of RepaymentsOfDebt0.0

us-gaap:RepaymentsOfDebt dei:LegalEntity, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

a12344345:SunnovaEZOwnPortfolioLLC, us-gaap:WarehouseAgreementBorrowings, us-gaap:SubsequentEvent


Repayments
Period End2021-02-25
Value107
Percentage of RepaymentsOfDebt0.0

us-gaap:RepaymentsOfDebt dei:LegalEntity, us-gaap:SubsequentEventType

a12344345:SunnovaEZOwnPortfolioLLC, us-gaap:SubsequentEvent


Repayments
Period End2020-10-29
Value28
Percentage of RepaymentsOfDebt0.0

us-gaap:RepaymentsOfNotesPayable

us-gaap:RepaymentsOfNotesPayable


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value5768000.02254000.01964000.0566000.053000.02398000.02495000.01929000.0248000.0000
Percentage of RepaymentsOfNotesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:RepaymentsOfOtherLongTermDebt

us-gaap:RepaymentsOfOtherLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value395174296382204082331163123
Percentage of RepaymentsOfOtherLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SaleOfStockConsiderationReceivedOnTransaction us-gaap:SubsidiarySaleOfStock

us-gaap:SaleOfStockConsiderationReceivedOnTransaction

a12344345:PublicStockOffering


Sale
Period End2020-12-31
Value142
Percentage of SaleOfStockConsiderationReceivedOnTransaction100.0

us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock

us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction

us-gaap:SubsequentEvent, a12344345:CommonStockSecondaryOffering


Sale
Period End2020-07-30
Value6.988423
Percentage of SaleOfStockNumberOfSharesIssuedInTransaction100.0

us-gaap:SubsequentEvent, us-gaap:OverAllotmentOption


Sale
Period End2020-07-302019-08-19
Value0.9115330.865267
Percentage of SaleOfStockNumberOfSharesIssuedInTransaction13.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue


Share
Period End2021-06-302021-03-312020-12-31
Value5.416.220.54
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-31
Value-0.4738.950.23
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.21120.25.00.00.325
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue100.0100.0100.0100.00.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-31
Value-0.1318.5-0.07
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue


Share
Period End2021-06-302021-03-312020-12-31
Value0.251518
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageIntrinsicValue


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageIntrinsicValue0.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue


Share
Period End2021-06-302021-03-31
Value018.35
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-31
Value-0.0816.31.8
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice0.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-31
Value040.5
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice0.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1


Sharebased
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0002000000.0428000.0791000.003600000.0933000.01500000.000425000.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue10.00.00.0100.0100.0100.00.0100.0100.0100.00.00.0100.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value12000.010000.013000.014000.06000.016000.014000.011000.012000.012000.019000.014000.08000.09000.0
Percentage of ShortTermLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityOther

us-gaap:StockholdersEquityOther


Stockholders
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value655000.0475000.0209000.02000.03000.0-3000.01000.0-491000.01000.068000.01000.0
Percentage of StockholdersEquityOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityOther us-gaap:StatementEquityComponents

a12344345:AdditionalPaidinCapitalCommonStock


Stockholders
Period End2020-09-302020-06-30
Value-1000.01000.0
Percentage of StockholdersEquityOther-0.550.0

nova:AdditionalPaidinCapitalCommonStock


Stockholders
Period End2021-06-302021-03-312020-06-30
Value1000.0-1000.01000.0
Percentage of StockholdersEquityOther0.2-0.250.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value654000.0476000.0210000.0-34000.03000.0
Percentage of StockholdersEquityOther99.8100.2100.5-1700.0100.0

us-gaap:Parent


Stockholders
Period End2021-06-302021-03-312020-09-302020-06-302019-09-302019-06-302019-03-31
Value1000.0-1000.0-1000.01000.0-3000.01000.0-491000.0
Percentage of StockholdersEquityOther0.2-0.2-0.550.0100.0100.0100.0

us-gaap:TemporaryEquityOtherChanges

us-gaap:TemporaryEquityOtherChanges


Temporary
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-47000.0-62000.0556000.0228000.0-47000.0-385000.0600000.02627000.0
Percentage of TemporaryEquityOtherChanges100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrealizedGainLossOnDerivatives

us-gaap:UnrealizedGainLossOnDerivatives


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-15.77318161.7883.053-7.59611-12.813-10.417-7.032-26.7476.989
Percentage of UnrealizedGainLossOnDerivatives100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrealizedGainLossOnDerivatives us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

us-gaap:InterestRateContract, us-gaap:InterestExpense


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-15.77318161.7883.053-7.59611-12.813-10.417-7.032-26.7476.9894.518
Percentage of UnrealizedGainLossOnDerivatives100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:UnrealizedGainLossOnHybridInstrumentNet

us-gaap:UnrealizedGainLossOnHybridInstrumentNet


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-30
Value-4282000.0113000.0742000.0-91000.0-53000.0437000.000
Percentage of UnrealizedGainLossOnHybridInstrumentNet100.0100.0100.0100.0100.0100.00.00.0

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


Variable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value296000.0261000.0259000.0258000.0172000.07000.0306000.0268000.0252000.0252000.0177000.0180000.0175000.0172000.0
Percentage of VariableLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:AccruedExpenseInventory

a12344345:AccruedExpenseInventory


Accrued
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value8.98.11.03.415
Percentage of AccruedExpenseInventory100.0100.0100.0100.0100.0

a12344345:ContractualObligationToBePaidAfterYearFour

a12344345:ContractualObligationToBePaidAfterYearFour


Contractual
Period End2020-09-30
Value7000.0
Percentage of ContractualObligationToBePaidAfterYearFour100.0

a12344345:DebtInstrumentEquityComponentDebtIssuanceCostsNoncurrentNet dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

a12344345:DebtInstrumentEquityComponentDebtIssuanceCostsNoncurrentNet

a12344345:SEI, a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, a12344345:ConvertibleSeniorNotes


Debt
Period End2020-12-312020-09-30
Value545000.0653000.0
Percentage of DebtInstrumentEquityComponentDebtIssuanceCostsNoncurrentNet100.0100.0

a12344345:DeferredReceivablesCurrent

a12344345:DeferredReceivablesCurrent


Deferred
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2678000.04636000.02937000.01222000.01506000.02961000.0842000.0555000.0
Percentage of DeferredReceivablesCurrent100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:DerivativeNotionalAmountSettled dei:LegalEntity, us-gaap:DerivativeInstrumentRisk

a12344345:DerivativeNotionalAmountSettled

a12344345:SunnovaEZOwnPortfolioLLC, us-gaap:InterestRateSwap


Derivative
Period End2020-12-312020-06-302019-12-31
Value126126264
Percentage of DerivativeNotionalAmountSettled100.0100.0100.0

a12344345:SunnovaLAPHoldingsLLC, us-gaap:InterestRateSwap


Derivative
Period End2020-12-312018-12-31
Value44224
Percentage of DerivativeNotionalAmountSettled35.10.0

a12344345:SunnovaTEPIIHoldingsLLC, us-gaap:InterestRateSwap


Derivative
Period End2020-12-31
Value181
Percentage of DerivativeNotionalAmountSettled143.9

a12344345:ExclusivityAndOtherBonusArrangementsWithDealersNet

a12344345:ExclusivityAndOtherBonusArrangementsWithDealersNet


Exclusivity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value5554473732
Percentage of ExclusivityAndOtherBonusArrangementsWithDealersNet100.0100.0100.0100.0100.0

a12344345:FinancingReceivableAfterAllowanceForCreditLossOtherCurrent

a12344345:FinancingReceivableAfterAllowanceForCreditLossOtherCurrent


Financing
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value853000.0878000.0918000.0947000.0982000.01006000.01043000.01522000.0
Percentage of FinancingReceivableAfterAllowanceForCreditLossOtherCurrent100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:FinancingReceivableConstructionInProgress

a12344345:FinancingReceivableConstructionInProgress


Financing
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value8565373337
Percentage of FinancingReceivableConstructionInProgress100.0100.0100.0100.0100.0

a12344345:FiniteLivedAssetsAmortizationExpenseAfterYearThree

a12344345:FiniteLivedAssetsAmortizationExpenseAfterYearThree


Finite
Period End2020-12-31
Value0
Percentage of FiniteLivedAssetsAmortizationExpenseAfterYearThree0.0

a12344345:LeaseLiability

a12344345:LeaseLiability


Lease
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value119.9219.896109.95103.1192.954
Percentage of LeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:LeaseLiabilityCurrent

a12344345:LeaseLiabilityCurrent


Lease
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1206000.01075000.01045000.0924000.0561000.0531000.0946000.0871000.0
Percentage of LeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:LeaseRightOfUseAsset

a12344345:LeaseRightOfUseAsset


Lease
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value9170000.08997000.09212000.09437000.09673000.09875000.02783000.02586000.0
Percentage of LeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0

a12344345:LesseeOperatingLeaseLeaseholdIncentive

a12344345:LesseeOperatingLeaseLeaseholdIncentive


Lessee
Period End2020-12-312020-09-30
Value950000.02128000.0
Percentage of LesseeOperatingLeaseLeaseholdIncentive100.0100.0

a12344345:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

a12344345:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour


Lessee
Period End2020-09-30
Value7617000.0
Percentage of LesseeOperatingLeaseLiabilityToBePaidAfterYearFour100.0

a12344345:LineOfCreditObligationCap dei:LegalEntity, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:CreditFacility, us-gaap:LongtermDebtType

a12344345:LineOfCreditObligationCap

a12344345:SunnovaTEPInventoryLLC, a12344345:EligibleProjects, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2020-12-31
Value9500000.0
Percentage of LineOfCreditObligationCap100.0

a12344345:LongtermDebtExcludingCurrentMaturitiesandRelatedParties us-gaap:ConsolidatedEntities

a12344345:LongtermDebtExcludingCurrentMaturitiesandRelatedParties

srt:ParentCompany


Longterm
Period End2020-12-312019-12-312018-12-31
Value58370.0
Percentage of LongtermDebtExcludingCurrentMaturitiesandRelatedParties100.0100.00.0

a12344345:LongtermDebtGrossCurrent dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType

a12344345:LongtermDebtGrossCurrent

a12344345:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Longterm
Period End2020-12-31
Value4.386
Percentage of LongtermDebtGrossCurrent100.0

a12344345:SunnovaTEPInventoryLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Longterm
Period End2020-12-312019-12-31
Value2940
Percentage of LongtermDebtGrossCurrent671.80.0

a12344345:TEPINV, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Longterm
Period End2020-09-302020-06-302020-03-312019-12-312018-12-31
Value364445400.0
Percentage of LongtermDebtGrossCurrent0.00.00.00.00.0

a12344345:LongtermDebtGrossCurrent dei:LegalEntity, us-gaap:LongtermDebtType

a12344345:HeliosIIIIssuerLLC, a12344345:LoanBackedNotes


Longterm
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value13141617190.0
Percentage of LongtermDebtGrossCurrent297.90.00.00.00.00.0

a12344345:HeliosIIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value111111111313139.013
Percentage of LongtermDebtGrossCurrent266.90.00.00.00.00.00.00.0

a12344345:HeliosIVIssuerLLC, a12344345:LoanBackedNotes


Longterm
Period End2020-12-312020-09-302020-06-302019-12-31
Value1615140.0
Percentage of LongtermDebtGrossCurrent376.50.00.00.0

a12344345:HeliosIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value6.3296.3286.7366.7368.6738.6749.74610
Percentage of LongtermDebtGrossCurrent144.30.00.00.00.00.00.00.0

a12344345:SunnovaEnergyCorporation, us-gaap:NotesPayableOtherPayables


Longterm
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2.2542.7690.4720.032.4284.9241.7980.0
Percentage of LongtermDebtGrossCurrent51.40.00.00.00.00.00.00.0

a12344345:SunnovaLAPHoldingsLLC, us-gaap:SecuredDebt


Longterm
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value0.3710.3630.3551.3921.3621.3421.038
Percentage of LongtermDebtGrossCurrent0.00.00.00.00.00.00.0

a12344345:SunnovaRAYSIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value5.8365.9936.176.2076.3275.9626.1890.0
Percentage of LongtermDebtGrossCurrent133.10.00.00.00.00.00.00.0

a12344345:SunnovaSolIIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2020-12-31
Value5.911
Percentage of LongtermDebtGrossCurrent134.8

a12344345:SunnovaSolIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value151513120.0
Percentage of LongtermDebtGrossCurrent351.50.00.00.00.0

a12344345:LongtermDebtGrossNoncurrent dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType

a12344345:LongtermDebtGrossNoncurrent

a12344345:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Longterm
Period End2020-12-31
Value42
Percentage of LongtermDebtGrossNoncurrent100.0

a12344345:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Longterm
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value239380231193900.0
Percentage of LongtermDebtGrossNoncurrent569.80.00.00.00.00.0

a12344345:SunnovaTEPInventoryLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Longterm
Period End2020-12-312019-12-31
Value2554
Percentage of LongtermDebtGrossNoncurrent60.00.0

a12344345:TEPINV, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Longterm
Period End2020-09-302020-06-302020-03-312019-12-312018-12-31
Value353244540.0
Percentage of LongtermDebtGrossNoncurrent0.00.00.00.00.0

a12344345:LongtermDebtGrossNoncurrent dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

a12344345:SEI, a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, a12344345:ConvertibleSeniorNotes


Longterm
Period End2020-12-312020-09-302020-06-302019-12-31
Value951602450.0
Percentage of LongtermDebtGrossNoncurrent227.50.00.00.0

a12344345:LongtermDebtGrossNoncurrent dei:LegalEntity, us-gaap:LongtermDebtType

a12344345:HeliosIIIIssuerLLC, a12344345:LoanBackedNotes


Longterm
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1221241281311350.0
Percentage of LongtermDebtGrossNoncurrent290.30.00.00.00.00.0

a12344345:HeliosIIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value227227233233241241246253
Percentage of LongtermDebtGrossNoncurrent541.20.00.00.00.00.00.00.0

a12344345:HeliosIVIssuerLLC, a12344345:LoanBackedNotes


Longterm
Period End2020-12-312020-09-302020-06-302019-12-31
Value1291341430.0
Percentage of LongtermDebtGrossNoncurrent308.30.00.00.0

a12344345:HeliosIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value205205210210213213217224
Percentage of LongtermDebtGrossNoncurrent488.50.00.00.00.00.00.00.0

a12344345:SunnovaEZOwnPortfolioLLC, us-gaap:WarehouseAgreementBorrowings


Longterm
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value17111522168121574358
Percentage of LongtermDebtGrossNoncurrent408.10.00.00.00.00.00.00.0

a12344345:SunnovaLAPHoldingsLLC, us-gaap:SecuredDebt


Longterm
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value10101041414243
Percentage of LongtermDebtGrossNoncurrent0.00.00.00.00.00.00.0

a12344345:SunnovaRAYSIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1201211231241261291310.0
Percentage of LongtermDebtGrossNoncurrent286.30.00.00.00.00.00.00.0

a12344345:SunnovaSolIIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2020-12-31
Value248
Percentage of LongtermDebtGrossNoncurrent591.7

a12344345:SunnovaSolIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value3843893953990.0
Percentage of LongtermDebtGrossNoncurrent913.90.00.00.00.0

a12344345:NonPerformanceFee

a12344345:NonPerformanceFee


Non
Period End2020-12-312019-12-312018-12-31
Value1500000.0566000.01300000.0
Percentage of NonPerformanceFee100.0100.0100.0

a12344345:OtherCommitmentToBePaidAfterYearFour us-gaap:OtherCommitments

a12344345:OtherCommitmentToBePaidAfterYearFour

a12344345:LongTermDealerCommitments


Other
Period End2020-09-30
Value1509000.0
Percentage of OtherCommitmentToBePaidAfterYearFour100.0

a12344345:OtherCurrentAssetAllowance

a12344345:OtherCurrentAssetAllowance


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value707000.0591000.0542000.0567000.0112000.0
Percentage of OtherCurrentAssetAllowance100.0100.0100.0100.0100.0

a12344345:PaidInKindInterestNoncurrent dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

a12344345:PaidInKindInterestNoncurrent

a12344345:SEI, a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, a12344345:ConvertibleSeniorNotes


Paid
Period End2020-09-302020-06-302019-12-31
Value780000.0679000.00
Percentage of PaidInKindInterestNoncurrent100.0100.00.0

a12344345:PrepaidInventory

a12344345:PrepaidInventory


Prepaid
Period End2020-12-312020-06-302020-03-312019-12-312018-12-31
Value3.3520.017960.0
Percentage of PrepaidInventory100.00.0100.0100.00.0

a12344345:RestrictedCashUninsured

a12344345:RestrictedCashUninsured


Restricted
Period End2020-12-312019-12-312018-12-31
Value1636331
Percentage of RestrictedCashUninsured100.0100.0100.0

a12344345:SolarEnergyEquipmentNotYetPlacedInService

a12344345:SolarEnergyEquipmentNotYetPlacedInService


Solar
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value8565373337322320
Percentage of SolarEnergyEquipmentNotYetPlacedInService100.0100.0100.0100.0100.0100.0100.0100.0

nova:AccruedExpenseInventory

nova:AccruedExpenseInventory


Accrued
Period End2021-06-302021-03-312020-12-31
Value13138.9
Percentage of AccruedExpenseInventory100.0100.0100.0

nova:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAccruedLiabilities us-gaap:BusinessAcquisition

nova:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAccruedLiabilities

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value3766000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAccruedLiabilities100.0

nova:DebtInstrumentPurchasePriceNetOfDiscount dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nova:DebtInstrumentPurchasePriceNetOfDiscount

nova:SEI, nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySix, us-gaap:ConvertibleDebt


Debt
Period End2021-05-31
Value560
Percentage of DebtInstrumentPurchasePriceNetOfDiscount100.0

nova:DeferredReceivablesCurrent

nova:DeferredReceivablesCurrent


Deferred
Period End2021-06-302021-03-312020-12-31
Value5450000.02075000.02678000.0
Percentage of DeferredReceivablesCurrent100.0100.0100.0

nova:DerivativeNotionalAmountSettled dei:LegalEntity, us-gaap:DerivativeInstrumentRisk

nova:DerivativeNotionalAmountSettled

nova:SunnovaEZOwnPortfolioLLC, us-gaap:InterestRateSwap


Derivative
Period End2021-06-302021-03-312020-06-302020-03-31
Value1311311260.0
Percentage of DerivativeNotionalAmountSettled100.0100.0100.00.0

nova:SunnovaTEPInventoryLLC, us-gaap:InterestRateSwap


Derivative
Period End2021-06-30
Value36
Percentage of DerivativeNotionalAmountSettled27.8

nova:ExclusivityAndOtherBonusArrangementsWithDealersNet

nova:ExclusivityAndOtherBonusArrangementsWithDealersNet


Exclusivity
Period End2021-06-302021-03-312020-12-31
Value736255
Percentage of ExclusivityAndOtherBonusArrangementsWithDealersNet100.0100.0100.0

nova:FinancingReceivableAfterAllowanceForCreditLossOtherCurrent

nova:FinancingReceivableAfterAllowanceForCreditLossOtherCurrent


Financing
Period End2021-06-302021-03-312020-12-31
Value787000.0820000.0853000.0
Percentage of FinancingReceivableAfterAllowanceForCreditLossOtherCurrent100.0100.0100.0

nova:FinancingReceivableConstructionInProgress

nova:FinancingReceivableConstructionInProgress


Financing
Period End2021-06-302021-03-312020-12-31
Value14510285
Percentage of FinancingReceivableConstructionInProgress100.0100.0100.0

nova:FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour

nova:FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour


Finite
Period End2021-06-30
Value84
Percentage of FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour100.0

nova:LeaseLiability

nova:LeaseLiability


Lease
Period End2021-06-302021-03-312020-12-31
Value131111
Percentage of LeaseLiability100.0100.0100.0

nova:LeaseLiabilityCurrent

nova:LeaseLiabilityCurrent


Lease
Period End2021-06-302021-03-312020-12-31
Value2065000.01217000.01206000.0
Percentage of LeaseLiabilityCurrent100.0100.0100.0

nova:LeaseRightOfUseAsset

nova:LeaseRightOfUseAsset


Lease
Period End2021-06-302021-03-312020-12-31
Value118.9259.17
Percentage of LeaseRightOfUseAsset100.0100.0100.0

nova:LongtermDebtGrossCurrent dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType

nova:LongtermDebtGrossCurrent

nova:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Longterm
Period End2021-06-302021-03-312020-12-31
Value4.4034.3954.386
Percentage of LongtermDebtGrossCurrent100.0100.0100.0

nova:SunnovaTEPInventoryLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Longterm
Period End2021-03-312020-12-31
Value2229
Percentage of LongtermDebtGrossCurrent507.4671.8

nova:LongtermDebtGrossCurrent dei:LegalEntity, us-gaap:LongtermDebtType

nova:HeliosIIIIssuerLLC, nova:LoanBackedNotes


Longterm
Period End2021-06-302021-03-312020-12-31
Value111213
Percentage of LongtermDebtGrossCurrent261.8279.7297.9

nova:HeliosIIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2021-06-302021-03-312020-12-31
Value101011
Percentage of LongtermDebtGrossCurrent240.9241.3266.9

nova:HeliosIVIssuerLLC, nova:LoanBackedNotes


Longterm
Period End2021-06-302021-03-312020-12-31
Value151616
Percentage of LongtermDebtGrossCurrent341.9366.9376.5

nova:HeliosIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2021-03-312020-12-31
Value6.5386.329
Percentage of LongtermDebtGrossCurrent148.8144.3

nova:HeliosVIssuerLLC, nova:LoanBackedNotes


Longterm
Period End2021-06-302021-03-31
Value1916
Percentage of LongtermDebtGrossCurrent442.8385.9

nova:MR, us-gaap:NotesPayableOtherPayables


Longterm
Period End2021-06-30
Value23
Percentage of LongtermDebtGrossCurrent527.5

nova:SunnovaEnergyCorporation, us-gaap:NotesPayableOtherPayables


Longterm
Period End2020-12-31
Value2.254
Percentage of LongtermDebtGrossCurrent51.4

nova:SunnovaRAYSIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2021-06-302021-03-312020-12-31
Value5.7235.7445.836
Percentage of LongtermDebtGrossCurrent130.0130.7133.1

nova:SunnovaSolIIIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2021-06-30
Value16
Percentage of LongtermDebtGrossCurrent383.8

nova:SunnovaSolIIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2021-06-302021-03-312020-12-31
Value5.9025.8535.911
Percentage of LongtermDebtGrossCurrent134.0133.2134.8

nova:SunnovaSolIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2021-06-302021-03-312020-12-31
Value151515
Percentage of LongtermDebtGrossCurrent351.6350.0351.5

nova:LongtermDebtGrossNoncurrent dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType

nova:LongtermDebtGrossNoncurrent

nova:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Longterm
Period End2021-06-302021-03-312020-12-31
Value202142
Percentage of LongtermDebtGrossNoncurrent100.0100.0100.0

nova:SunnovaEZOwnPortfolioLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Longterm
Period End2021-06-302021-03-312020-12-31
Value182109171
Percentage of LongtermDebtGrossNoncurrent868.6515.9408.1

nova:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Longterm
Period End2021-06-302021-03-312020-12-31
Value218304239
Percentage of LongtermDebtGrossNoncurrent1044.91436.3569.8

nova:SunnovaTEPInventoryLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Longterm
Period End2021-03-312020-12-31
Value2725
Percentage of LongtermDebtGrossNoncurrent129.460.0

nova:LongtermDebtGrossNoncurrent dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nova:SEI, nova:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, nova:ConvertibleSeniorNotes


Longterm
Period End2020-12-31
Value95
Percentage of LongtermDebtGrossNoncurrent227.5

nova:SEI, nova:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, us-gaap:ConvertibleDebt


Longterm
Period End2020-12-31
Value95
Percentage of LongtermDebtGrossNoncurrent227.5

nova:SEI, nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySix, us-gaap:ConvertibleDebt


Longterm
Period End2021-06-30
Value575
Percentage of LongtermDebtGrossNoncurrent2744.1

nova:LongtermDebtGrossNoncurrent dei:LegalEntity, us-gaap:LongtermDebtType

nova:HeliosIIIIssuerLLC, nova:LoanBackedNotes


Longterm
Period End2021-06-302021-03-312020-12-31
Value115119122
Percentage of LongtermDebtGrossNoncurrent551.8561.4290.3

nova:HeliosIIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2021-06-302021-03-312020-12-31
Value221221227
Percentage of LongtermDebtGrossNoncurrent1057.91045.4541.2

nova:HeliosIVIssuerLLC, nova:LoanBackedNotes


Longterm
Period End2021-06-302021-03-312020-12-31
Value120125129
Percentage of LongtermDebtGrossNoncurrent576.2592.6308.3

nova:HeliosIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2021-03-312020-12-31
Value201205
Percentage of LongtermDebtGrossNoncurrent951.5488.5

nova:HeliosVIssuerLLC, nova:LoanBackedNotes


Longterm
Period End2021-06-302021-03-31
Value161169
Percentage of LongtermDebtGrossNoncurrent769.7800.6

nova:SunnovaRAYSIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2021-06-302021-03-312020-12-31
Value118119120
Percentage of LongtermDebtGrossNoncurrent563.9562.5286.3

nova:SunnovaSolIIIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2021-06-30
Value302
Percentage of LongtermDebtGrossNoncurrent1441.7

nova:SunnovaSolIIIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2021-06-302021-03-312020-12-31
Value245246248
Percentage of LongtermDebtGrossNoncurrent1171.11164.2591.7

nova:SunnovaSolIssuerLLC, us-gaap:AssetBackedSecurities


Longterm
Period End2021-06-302021-03-312020-12-31
Value376379384
Percentage of LongtermDebtGrossNoncurrent1795.51791.0913.9

nova:OtherCurrentAssetAllowance

nova:OtherCurrentAssetAllowance


Other
Period End2021-06-302021-03-312020-12-31
Value1041000.0837000.0707000.0
Percentage of OtherCurrentAssetAllowance100.0100.0100.0

nova:PrepaidInventory

nova:PrepaidInventory


Prepaid
Period End2021-06-302020-12-31
Value5012000.03352000.0
Percentage of PrepaidInventory100.0100.0

nova:SolarEnergyEquipmentNotYetPlacedInService

nova:SolarEnergyEquipmentNotYetPlacedInService


Solar
Period End2021-06-302021-03-312020-12-31
Value14510285
Percentage of SolarEnergyEquipmentNotYetPlacedInService100.0100.0100.0

us-gaap:AccruedInvestmentIncomeReceivable us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:AccruedInvestmentIncomeReceivable

us-gaap:NotesReceivable


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value1600000.01800000.01200000.0873000.01400000.0975000.0869000.0
Percentage of AccruedInvestmentIncomeReceivable100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value858000.0848000.0912000.0829000.0773000.0747000.0960000.0861000.0746000.0741000.0723000.0572000.0328000.0427000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForNotesAndLoansReceivableCurrent

us-gaap:AllowanceForNotesAndLoansReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2420161413110.979
Percentage of AllowanceForNotesAndLoansReceivableCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries

us-gaap:AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries


Amount
Period End2020-12-31
Value863
Percentage of AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries100.0

us-gaap:AssetRetirementObligationsNoncurrent

us-gaap:AssetRetirementObligationsNoncurrent


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value4744413836333123222120191715
Percentage of AssetRetirementObligationsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-30
Value127
Percentage of BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value242
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value503000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value33
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value3762000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value28
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value363000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value207
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value26
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value37
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value204
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value697000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value1060000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value217000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet

nova:SunStreetEnergyGroupLLC


Business
Period End2021-04-01
Value208
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet100.0

us-gaap:CashUninsuredAmount

us-gaap:CashUninsuredAmount


Cash
Period End2020-12-312019-12-312018-12-31
Value1997246
Percentage of CashUninsuredAmount100.0100.0100.0

us-gaap:ContractWithCustomerAssetNetNoncurrent

us-gaap:ContractWithCustomerAssetNetNoncurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value38353330282624
Percentage of ContractWithCustomerAssetNetNoncurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312017-12-31
Value1761361068475685846403419
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability us-gaap:ProductOrService

a12344345:EasyOwnProgramRevenue


Contract
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value9373635546393427
Percentage of ContractWithCustomerLiability87.986.483.580.879.884.284.681.6

a12344345:PowerPurchaseAgreementsandLeaseRevenue


Contract
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value11109.461108.8957.4146.2716.255
Percentage of ContractWithCustomerLiability11.012.012.514.815.115.815.418.4

a12344345:SRECs


Contract
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1.1631.423.03.03.00.0
Percentage of ContractWithCustomerLiability1.11.74.04.45.10.0

nova:EasyOwnProgramRevenue


Contract
Period End2021-06-302021-03-312020-12-31
Value16212293
Percentage of ContractWithCustomerLiability92.289.887.9

nova:PowerPurchaseAgreementsandLeaseRevenue


Contract
Period End2021-06-302021-03-312020-12-31
Value131311
Percentage of ContractWithCustomerLiability7.810.011.0

nova:SRECs


Contract
Period End2021-03-312020-12-31
Value0.291.163
Percentage of ContractWithCustomerLiability0.21.1

us-gaap:ContractualObligation

us-gaap:ContractualObligation


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value1110106.977
Percentage of ContractualObligation100.0100.0100.0100.0

us-gaap:ContractualObligationDueInFifthYear

us-gaap:ContractualObligationDueInFifthYear


Contractual
Period End2020-12-31
Value7000.0
Percentage of ContractualObligationDueInFifthYear100.0

us-gaap:ContractualObligationDueInFourthYear

us-gaap:ContractualObligationDueInFourthYear


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value7000.07000.026000.026000.0
Percentage of ContractualObligationDueInFourthYear100.0100.0100.0100.0

us-gaap:ContractualObligationDueInNextTwelveMonths

us-gaap:ContractualObligationDueInNextTwelveMonths


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value2589000.02216000.07976000.05322000.0
Percentage of ContractualObligationDueInNextTwelveMonths100.0100.0100.0100.0

us-gaap:ContractualObligationDueInSecondYear

us-gaap:ContractualObligationDueInSecondYear


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value379000.026000.02112000.0121000.0
Percentage of ContractualObligationDueInSecondYear100.0100.0100.0100.0

us-gaap:ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear

us-gaap:ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear


Contractual
Period End2021-06-302021-03-312020-09-30
Value8191000.08026000.01475000.0
Percentage of ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear100.0100.0100.0

us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent

a12344345:SEI, a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, a12344345:ConvertibleSeniorNotes


Debt
Period End2020-12-312020-09-30
Value8.842
Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent100.0100.0

us-gaap:DebtInstrumentFaceAmount dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFaceAmount

nova:HeliosVIssuerLLC, nova:HELVSeries2021AClassA, nova:LoanBackedNotes


Debt
Period End2021-02-28
Value150
Percentage of DebtInstrumentFaceAmount100.0

nova:HeliosVIssuerLLC, nova:HELVSeries2021AClassB, nova:LoanBackedNotes


Debt
Period End2021-02-28
Value38
Percentage of DebtInstrumentFaceAmount25.7

nova:SEI, nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySix, us-gaap:ConvertibleDebt


Debt
Period End2021-05-31
Value575
Percentage of DebtInstrumentFaceAmount0.0

us-gaap:DebtInstrumentFaceAmount dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

a12344345:SunnovaHeliosVIssuerLLC, a12344345:HELVSeries2021AClassA, a12344345:LoanBackedNotes, us-gaap:SubsequentEvent


Debt
Period End2021-02-25
Value150
Percentage of DebtInstrumentFaceAmount0.0

a12344345:SunnovaHeliosVIssuerLLC, a12344345:HELVSeries2021AClassB, a12344345:LoanBackedNotes, us-gaap:SubsequentEvent


Debt
Period End2021-02-25
Value38
Percentage of DebtInstrumentFaceAmount0.0

nova:HeliosVIIssuerLLC, nova:HELVISeries2021BClassA, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables, us-gaap:SubsequentEvent


Debt
Period End2021-07-29
Value106
Percentage of DebtInstrumentFaceAmount0.0

nova:HeliosVIIssuerLLC, nova:HELVISeries2021BClassB, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables, us-gaap:SubsequentEvent


Debt
Period End2021-07-29
Value106
Percentage of DebtInstrumentFaceAmount0.0

us-gaap:DebtInstrumentFaceAmount dei:LegalEntity, us-gaap:LongtermDebtType

a12344345:SunnovaEnergyCorporation, us-gaap:NotesPayableOtherPayables


Debt
Period End2020-10-312020-08-312019-07-312019-05-31
Value1.42.84.71.9
Percentage of DebtInstrumentFaceAmount0.00.00.00.0

nova:SunnovaSolIIIIssuerLLC, us-gaap:AssetBackedSecurities


Debt
Period End2021-06-30
Value319
Percentage of DebtInstrumentFaceAmount0.0

us-gaap:DebtInstrumentUnamortizedDiscountNoncurrent dei:LegalEntity

us-gaap:DebtInstrumentUnamortizedDiscountNoncurrent

a12344345:HeliosIIIIssuerLLC


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2.4232.4512.4792.5062.5322.5572.5820.0
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent100.0100.0100.0100.0100.0100.0100.00.0

a12344345:HeliosIIIssuerLLC


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value0.0420.0440.0450.0470.0490.050.0520.055
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent1.71.81.81.91.92.02.00.0

a12344345:HeliosIVIssuerLLC


Debt
Period End2020-12-312020-09-302020-06-302019-12-31
Value0.8850.9210.9560.0
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent36.537.638.60.0

a12344345:HeliosIssuerLLC


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2.2412.4452.7292.943.1693.3823.6354.124
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent92.599.8110.1117.3125.2132.3140.80.0

a12344345:SunnovaEZOwnPortfolioLLC


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1.4311.6181.8041.9912.1782.3012.3740.0
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent59.166.072.879.486.090.091.90.0

a12344345:SunnovaLAPHoldingsLLC


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value0.1520.1710.1890.4010.4360.4720.552
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent6.26.97.515.817.118.30.0

a12344345:SunnovaRAYSIIssuerLLC


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1.3761.4211.4641.5011.5471.5881.6250.0
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent56.858.059.159.961.162.162.90.0

a12344345:SunnovaSolIIIssuerLLC


Debt
Period End2020-12-31
Value0.08
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent3.3

a12344345:SunnovaSolIssuerLLC


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value0.1130.1170.120.1240.0
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent4.74.84.84.90.0

a12344345:SunnovaTEPHoldingsLLC


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value3.8154.0514.5181.0060.6450.70.0
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent157.4165.3182.340.125.527.40.0

a12344345:SunnovaTEPInventoryLLC


Debt
Period End2020-12-312019-12-31
Value1.3222.856
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent54.6112.8

a12344345:TEPINV


Debt
Period End2020-09-302020-06-302020-03-312019-12-312018-12-31
Value1.8112.1482.5262.8560.0
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent73.986.6100.8112.80.0

nova:HeliosIIIIssuerLLC


Debt
Period End2021-06-302021-03-312020-12-31
Value2.3652.3952.423
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent0.00.0100.0

nova:HeliosIIIssuerLLC


Debt
Period End2021-06-302021-03-312020-12-31
Value0.0390.040.042
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent0.00.01.7

nova:HeliosIVIssuerLLC


Debt
Period End2021-06-302021-03-312020-12-31
Value0.810.8490.885
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent0.00.036.5

nova:HeliosIssuerLLC


Debt
Period End2021-03-312020-12-31
Value2.022.241
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent0.092.5

nova:HeliosVIssuerLLC


Debt
Period End2021-06-302021-03-31
Value0.9140.949
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent0.00.0

nova:SunnovaRAYSIIssuerLLC


Debt
Period End2021-06-302021-03-312020-12-31
Value1.2881.3341.376
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent0.00.056.8

nova:SunnovaSolIIIIssuerLLC


Debt
Period End2021-06-30
Value0.139
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent0.0

nova:SunnovaSolIIIssuerLLC


Debt
Period End2021-06-302021-03-312020-12-31
Value0.0790.0790.08
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent0.00.03.3

nova:SunnovaSolIssuerLLC


Debt
Period End2021-06-302021-03-312020-12-31
Value0.1070.110.113
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent0.00.04.7

nova:SunnovaTEPHoldingsLLC


Debt
Period End2021-06-302021-03-312020-12-31
Value4.8943.3323.815
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent0.00.0157.4

nova:SunnovaTEPInventoryLLC


Debt
Period End2021-03-312020-12-31
Value0.9971.322
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent0.054.6

us-gaap:DebtInstrumentUnamortizedDiscountNoncurrent dei:LegalEntity, us-gaap:CreditFacility

nova:SunnovaEZOwnPortfolioLLC, us-gaap:RevolvingCreditFacility


Debt
Period End2021-06-302021-03-312020-12-31
Value1.1431.2661.431
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent0.00.059.1

us-gaap:DebtInstrumentUnamortizedDiscountNoncurrent dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

a12344345:SEI, a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, a12344345:ConvertibleSeniorNotes


Debt
Period End2020-12-312020-09-302020-06-302019-12-31
Value37649716
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent1543.32631.23951.6668.0

nova:SEI, nova:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, nova:ConvertibleSeniorNotes


Debt
Period End2020-12-31
Value37
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent1543.3

us-gaap:DebtInstrumentUnamortizedDiscountNoncurrent dei:LegalEntity, us-gaap:LongtermDebtType

nova:SEI, us-gaap:ConvertibleDebt


Debt
Period End2021-06-302020-12-31
Value1437
Percentage of DebtInstrumentUnamortizedDiscountNoncurrent0.01543.3

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value6551871121485954333528
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredFinanceCostsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value39252225
Percentage of DeferredFinanceCostsNet100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-31
Value358261194
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0

us-gaap:DeferredTaxAssetInterestCarryforward

us-gaap:DeferredTaxAssetInterestCarryforward


Deferred
Period End2020-12-312019-12-312018-12-31
Value392210
Percentage of DeferredTaxAssetInterestCarryforward100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-31
Value692546440
Percentage of DeferredTaxAssetsGross100.0100.0100.0

us-gaap:DeferredTaxAssetsInvestments

us-gaap:DeferredTaxAssetsInvestments


Deferred
Period End2020-12-312019-12-312018-12-31
Value443616
Percentage of DeferredTaxAssetsInvestments100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic


Deferred
Period End2020-12-312019-12-312018-12-31
Value242169137
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsDomestic100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal


Deferred
Period End2020-12-312019-12-312018-12-31
Value764938
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-31
Value232011
Percentage of DeferredTaxAssetsOther100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness


Deferred
Period End2020-12-312019-12-312018-12-31
Value267246226
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesInvestments

us-gaap:DeferredTaxLiabilitiesInvestments


Deferred
Period End2020-12-312019-12-312018-12-31
Value57225.391
Percentage of DeferredTaxLiabilitiesInvestments100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-31
Value3427000.02819000.0874000.0
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-31
Value298235188
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0

us-gaap:DerivativeAssets us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeAssets

us-gaap:OtherAssets, us-gaap:InterestRateSwap, us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value5.993140.0010.0060.0010.360.27
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetsNoncurrent

us-gaap:DerivativeAssetsNoncurrent


Derivative
Period End2021-03-31
Value14
Percentage of DerivativeAssetsNoncurrent100.0

us-gaap:DerivativeFairValueOfDerivativeNet us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeFairValueOfDerivativeNet

us-gaap:InterestRateSwap, us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-1.48214-13.407-29.93-31.718-34.77-27.129-38.153-25.341-7.891
Percentage of DerivativeFairValueOfDerivativeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilities us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeLiabilities

us-gaap:OtherNoncurrentLiabilities, us-gaap:InterestRateSwap, us-gaap:Nondesignated


Derivative
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value7.47513293134278.161
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeNotionalAmount dei:LegalEntity, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeNotionalAmount

a12344345:SunnovaAssetPortfolio4LLC, us-gaap:InterestRateSwap


Derivative
Period End2020-12-312019-09-302019-06-302018-12-31
Value105100101102
Percentage of DerivativeNotionalAmount100.0100.0100.0100.0

a12344345:SunnovaEZOwnPortfolioLLC, a12344345:InterestRateSwapThree


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value1307824121100
Percentage of DerivativeNotionalAmount123.90.00.00.00.0

a12344345:SunnovaEZOwnPortfolioLLC, us-gaap:InterestRateSwap


Derivative
Period End2020-12-312019-12-312019-09-302019-06-302018-12-31
Value155255473755
Percentage of DerivativeNotionalAmount148.10.047.336.653.7

a12344345:SunnovaLAPHoldingsLLC, a12344345:InterestRateSwapTwo


Derivative
Period End2020-09-302020-06-302020-03-312019-12-31
Value10101043
Percentage of DerivativeNotionalAmount0.00.00.00.0

a12344345:SunnovaTEPHoldingsLLC, a12344345:InterestRateSwapFive


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value20220220214755
Percentage of DerivativeNotionalAmount192.30.00.00.00.0

a12344345:SunnovaTEPHoldingsLLC, us-gaap:InterestRateSwap


Derivative
Period End2020-12-312019-12-312019-09-302018-12-31
Value260103160.0
Percentage of DerivativeNotionalAmount247.90.016.10.0

a12344345:SunnovaTEPInventoryLLC, a12344345:InterestRateSwapSix


Derivative
Period End2020-12-31
Value51
Percentage of DerivativeNotionalAmount48.5

a12344345:SunnovaTEPInventoryLLC, us-gaap:InterestRateCap


Derivative
Period End2020-12-31
Value95
Percentage of DerivativeNotionalAmount90.5

a12344345:TEPINV, a12344345:InterestRateSwapSix


Derivative
Period End2020-09-302020-06-302020-03-312019-12-31
Value6576880.0
Percentage of DerivativeNotionalAmount0.00.00.00.0

nova:SunnovaEZOwnPortfolioLLC, nova:InterestRateSwapOne


Derivative
Period End2021-06-302021-03-312020-12-31
Value177180130
Percentage of DerivativeNotionalAmount0.00.0123.9

nova:SunnovaTEPHoldingsLLC, nova:InterestRateSwapTwo


Derivative
Period End2021-06-302021-03-312020-12-31
Value270270202
Percentage of DerivativeNotionalAmount0.00.0192.3

nova:SunnovaTEPInventoryLLC, nova:InterestRateSwapThree


Derivative
Period End2021-03-312020-12-31
Value4051
Percentage of DerivativeNotionalAmount0.048.5

us-gaap:DerivativeNotionalAmount us-gaap:DerivativeInstrumentRisk

us-gaap:InterestRateSwap


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value447490383356314369524405372428
Percentage of DerivativeNotionalAmount0.00.0364.70.00.00.00.0403.1367.2416.5

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:RestrictedStockUnitsRSU


Employee
Period End2021-06-302021-03-312020-12-312020-09-302019-09-30
Value2626172015
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

nova:ContingentConsiderationLiability


Fair
Period End2021-06-30
Value86
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue100.0

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2021-06-302021-03-312020-12-31
Value1669000.0288000.0315000.0
Percentage of FinanceLeaseLiability100.0100.0100.0

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityCurrent


Finance
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value611000.0110000.0112000.004000.05000.07000.08000.00
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.00.0100.0100.0100.0100.00.0

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityNoncurrent


Finance
Period End2021-06-302021-03-312020-12-312019-06-302018-12-31
Value1058000.0178000.0203000.01000.00
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0100.0100.00.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2021-06-302021-03-312020-12-31
Value1754000.0303000.0334000.0
Percentage of FinanceLeaseLiabilityPaymentsDue100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Finance
Period End2021-06-302021-03-312020-12-31
Value569000.088000.0122000.0
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2021-06-302020-12-31
Value97000.055000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree


Finance
Period End2021-06-302021-03-312020-12-31
Value316000.055000.069000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo


Finance
Period End2021-06-302021-03-312020-12-31
Value438000.069000.088000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear


Finance
Period End2021-06-302021-03-31
Value334000.091000.0
Percentage of FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount


Finance
Period End2021-06-302021-03-312020-12-31
Value85000.015000.019000.0
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseRightOfUseAsset


Finance
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2059000.0367000.0391000.003000.05000.06000.08000.00
Percentage of FinanceLeaseRightOfUseAsset100.0100.0100.00.0100.0100.0100.0100.00.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent


Finance
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3.133.383.3900.04264.264.260.04260.0425
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLosses

us-gaap:FinancingReceivableAllowanceForCreditLosses


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value2620171413121.0910.9490.9440.7580.710.6120.7680.602
Percentage of FinancingReceivableAllowanceForCreditLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value293010101111
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:NonperformingFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.4751.3890.2030.2210.1180.09
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear5.04.62.02.11.10.8

us-gaap:PerformingFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value28289.947101011
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear95.095.498.097.998.999.2

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value313220212121
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:NonperformingFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value2.0131.9311.2151.2750.2970.161
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear6.36.05.96.11.40.7

us-gaap:PerformingFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value293019192121
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear93.794.094.193.998.699.3

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value30412926716810758
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:NonperformingFinancingReceivable


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.280.0840.00.0
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.10.00.00.0

us-gaap:PerformingFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value30412926616810758
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear100.0100.099.9100.0100.0100.0

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value254261135139143147
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:NonperformingFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.6720.2671.2750.9750.6980.324
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.30.10.90.70.50.2

us-gaap:PerformingFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value254261134138143147
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear99.799.999.199.399.599.8

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value858633333434
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:NonperformingFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value2.2391.8741.9721.6280.8970.794
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear2.62.26.04.92.62.3

us-gaap:PerformingFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value838431313333
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear97.497.894.095.197.497.7

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value12913288909192
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:NonperformingFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.5521.3191.911.5640.8620.675
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear1.21.02.21.70.90.7

us-gaap:PerformingFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value12713186889091
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear98.899.097.898.399.199.3

us-gaap:FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing

us-gaap:FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value108.68.67.54.93.82.9
Percentage of FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRecordedInvestmentCurrent

us-gaap:FinancingReceivableRecordedInvestmentCurrent


Financing
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value655537449399355304
Percentage of FinancingReceivableRecordedInvestmentCurrent100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRecordedInvestmentPastDue

us-gaap:FinancingReceivableRecordedInvestmentPastDue


Financing
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value171714109.8830.1510.081
Percentage of FinancingReceivableRecordedInvestmentPastDue100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRecordedInvestmentPastDue us-gaap:FinancingReceivablesPeriodPastDue

a12344345:FinancialAsset190DaysPastDue


Financing
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value8.5046.5466.0596.125.741
Percentage of FinancingReceivableRecordedInvestmentPastDue49.846.755.361.93802.0

a12344345:FinancialAsset91180DaysPastDue


Financing
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value1.7331.7162.0281.7191.714
Percentage of FinancingReceivableRecordedInvestmentPastDue10.112.218.517.41135.1

a12344345:FinancialAssetGreaterThan180DaysPastDue


Financing
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value6.8555.7472.8722.0441.206
Percentage of FinancingReceivableRecordedInvestmentPastDue40.141.026.220.7798.7

nova:FinancialAsset190DaysPastDue


Financing
Period End2021-03-312020-12-31
Value9.2028.504
Percentage of FinancingReceivableRecordedInvestmentPastDue51.749.8

nova:FinancialAsset91180DaysPastDue


Financing
Period End2021-03-312020-12-31
Value1.8151.733
Percentage of FinancingReceivableRecordedInvestmentPastDue10.210.1

nova:FinancialAssetGreaterThan180DaysPastDue


Financing
Period End2021-03-312020-12-31
Value6.786.855
Percentage of FinancingReceivableRecordedInvestmentPastDue38.140.1

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2021-06-302020-12-312019-12-312018-12-31
Value7514000.0449000.0420000.0399000.0
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2021-06-302020-12-31
Value270.029
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear


Finite
Period End2021-06-30
Value13
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2021-06-30
Value18
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2021-06-30
Value27
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2021-06-302020-12-31
Value270.009
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2021-06-302020-12-312019-12-312018-12-31
Value2070.4870.4870.399
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

nova:CustomerRelationshipsNewCustomers


Finite
Period End2021-06-30
Value29
Percentage of FiniteLivedIntangibleAssetsGross14.0

nova:CustomerRelationshipsServicing


Finite
Period End2021-06-30
Value3.856
Percentage of FiniteLivedIntangibleAssetsGross1.9

nova:CustomerRelationshipsSystemSales


Finite
Period End2021-06-30
Value142
Percentage of FiniteLivedIntangibleAssetsGross68.6

nova:TaxEquityCommitment


Finite
Period End2021-06-30
Value20
Percentage of FiniteLivedIntangibleAssetsGross9.6

us-gaap:OtherIntangibleAssets


Finite
Period End2021-06-302020-12-312019-12-312018-12-31
Value0.0880.0880.0880.0
Percentage of FiniteLivedIntangibleAssetsGross0.018.118.10.0

us-gaap:TradeNames


Finite
Period End2021-06-30
Value11
Percentage of FiniteLivedIntangibleAssetsGross5.6

us-gaap:InterestPayableCurrent

us-gaap:InterestPayableCurrent


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value13101711178.978147.257138.15
Percentage of InterestPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312018-12-31
Value1926000.01559000.01536000.01536000.01037000.0989000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2021-06-302021-03-312020-09-30
Value949000.01155000.0381000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LettersOfCreditOutstandingAmount


Letters
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value375000.0375000.0375000.0375000.0550000.0550000.0725000.0725000.0725000.0725000.0
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value3211831711621491451271199266
Percentage of LiabilitiesOtherThanLongtermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value31282517141210
Percentage of LiabilitiesOtherThanLongtermDebtNoncurrent9.815.314.910.610.08.88.5

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity

a12344345:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2020-10-312020-06-302020-05-312020-02-292019-12-31
Value460437390200100
Percentage of LineOfCreditFacilityCurrentBorrowingCapacity100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

a12344345:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2020-10-292020-09-302020-06-302020-05-312020-05-302020-03-312020-02-292019-12-31
Value600437437390200400200150
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

a12344345:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit, us-gaap:SubsequentEvent


Line
Period End2020-10-292020-05-152020-04-30
Value600390200
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.00.00.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value294281402224402
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType

a12344345:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2020-12-312020-09-30
Value1360
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity3.426.8

a12344345:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value360562066.19.7
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity89.625.351.30.00.0

a12344345:TEPINV, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2020-09-302020-06-302020-03-31
Value22186.0
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity10.14.60.0

nova:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2021-06-302021-03-31
Value3434
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity11.812.2

nova:SunnovaEZOwnPortfolioLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2021-06-302021-03-31
Value1890
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity6.132.2

nova:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2021-06-302021-03-31
Value241156
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity82.155.5

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity dei:LegalEntity, us-gaap:LongtermDebtType

a12344345:SunnovaEZOwnPortfolioLLC, us-gaap:WarehouseAgreementBorrowings


Line
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value28841773178142
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity7.137.744.10.00.00.0

us-gaap:LongTermDebtFairValue dei:LegalEntity, us-gaap:CreditFacility, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

us-gaap:LongTermDebtFairValue

a12344345:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2020-12-31
Value46
Percentage of LongTermDebtFairValue100.0

a12344345:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2020-12-31
Value46
Percentage of LongTermDebtFairValue100.0

a12344345:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value239380231193900.0
Percentage of LongTermDebtFairValue515.90.00.00.00.00.0

a12344345:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value239380231193900.0
Percentage of LongTermDebtFairValue515.90.00.00.00.00.0

a12344345:SunnovaTEPInventoryLLC, us-gaap:RevolvingCreditFacility, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2020-12-312019-12-31
Value5495
Percentage of LongTermDebtFairValue117.80.0

a12344345:SunnovaTEPInventoryLLC, us-gaap:RevolvingCreditFacility, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2020-12-312019-12-31
Value5495
Percentage of LongTermDebtFairValue117.80.0

a12344345:TEPINV, us-gaap:RevolvingCreditFacility, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2020-09-302020-06-302020-03-312019-12-312018-12-31
Value727689950.0
Percentage of LongTermDebtFairValue0.00.00.00.00.0

a12344345:TEPINV, us-gaap:RevolvingCreditFacility, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2020-09-302020-06-302020-03-312019-12-312018-12-31
Value727689950.0
Percentage of LongTermDebtFairValue0.00.00.00.00.0

nova:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2021-06-302021-03-312020-12-31
Value252546
Percentage of LongTermDebtFairValue0.00.0100.0

nova:SunnovaAssetPortfolio8LLC, us-gaap:RevolvingCreditFacility, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2021-06-302021-03-312020-12-31
Value252546
Percentage of LongTermDebtFairValue0.00.0100.0

nova:SunnovaEZOwnPortfolioLLC, us-gaap:RevolvingCreditFacility, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2021-06-302021-03-312020-12-31
Value182109171
Percentage of LongTermDebtFairValue0.00.0369.6

nova:SunnovaEZOwnPortfolioLLC, us-gaap:RevolvingCreditFacility, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2021-06-302021-03-312020-12-31
Value182109171
Percentage of LongTermDebtFairValue0.00.0369.6

nova:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2021-06-302021-03-312020-12-31
Value218304239
Percentage of LongTermDebtFairValue0.00.0515.9

nova:SunnovaTEPHoldingsLLC, us-gaap:RevolvingCreditFacility, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2021-06-302021-03-312020-12-31
Value218304239
Percentage of LongTermDebtFairValue0.00.0515.9

nova:SunnovaTEPInventoryLLC, us-gaap:RevolvingCreditFacility, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2021-03-312020-12-31
Value4954
Percentage of LongTermDebtFairValue0.0117.8

nova:SunnovaTEPInventoryLLC, us-gaap:RevolvingCreditFacility, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:LineOfCredit


Long
Period End2021-03-312020-12-31
Value4954
Percentage of LongTermDebtFairValue0.0117.8

us-gaap:LongTermDebtFairValue dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

a12344345:SEI, a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, us-gaap:CarryingReportedAmountFairValueDisclosure, a12344345:ConvertibleSeniorNotes


Long
Period End2020-12-312020-09-302020-06-302019-12-31
Value951612450.0
Percentage of LongTermDebtFairValue206.00.00.00.0

a12344345:SEI, a12344345:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, us-gaap:EstimateOfFairValueFairValueDisclosure, a12344345:ConvertibleSeniorNotes


Long
Period End2020-12-312020-09-302020-06-302019-12-31
Value1001702410.0
Percentage of LongTermDebtFairValue216.40.00.00.0

nova:SEI, nova:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, us-gaap:CarryingReportedAmountFairValueDisclosure, nova:ConvertibleSeniorNotes


Long
Period End2020-12-31
Value95
Percentage of LongTermDebtFairValue206.0

nova:SEI, nova:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:ConvertibleDebt


Long
Period End2020-12-31
Value95
Percentage of LongTermDebtFairValue206.0

nova:SEI, nova:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, us-gaap:EstimateOfFairValueFairValueDisclosure, nova:ConvertibleSeniorNotes


Long
Period End2020-12-31
Value100
Percentage of LongTermDebtFairValue216.4

nova:SEI, nova:NinePointSevenFiveConvertibleSeniorNotesDueAprilTwentyTwentyFive, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:ConvertibleDebt


Long
Period End2020-12-31
Value100
Percentage of LongTermDebtFairValue216.4

nova:SEI, nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySix, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:ConvertibleDebt


Long
Period End2021-06-30
Value575
Percentage of LongTermDebtFairValue0.0

nova:SEI, nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySix, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:ConvertibleDebt


Long
Period End2021-06-30
Value579
Percentage of LongTermDebtFairValue0.0

us-gaap:LongTermDebtFairValue dei:LegalEntity, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

a12344345:HeliosIIIIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value1351391441491541600.0
Percentage of LongTermDebtFairValue291.00.00.00.00.00.00.0

a12344345:HeliosIIIIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value1491561621681551650.0
Percentage of LongTermDebtFairValue321.90.00.00.00.00.00.0

a12344345:HeliosIIIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value239239244244254254259262
Percentage of LongTermDebtFairValue515.30.00.00.00.00.00.00.0

a12344345:HeliosIIIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value286290298299281289286274
Percentage of LongTermDebtFairValue617.20.00.00.00.00.00.00.0

a12344345:HeliosIVIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Long
Period End2020-12-312020-09-302020-06-302019-12-31
Value1461501580.0
Percentage of LongTermDebtFairValue314.80.00.00.0

a12344345:HeliosIVIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Long
Period End2020-12-312020-09-302020-06-302019-12-31
Value1451501580.0
Percentage of LongTermDebtFairValue313.20.00.00.0

a12344345:HeliosIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value211211217217222222227235
Percentage of LongTermDebtFairValue456.00.00.00.00.00.00.00.0

a12344345:HeliosIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value220220226228223225228229
Percentage of LongTermDebtFairValue475.80.00.00.00.00.00.00.0

a12344345:SunnovaEZOwnPortfolioLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:WarehouseAgreementBorrowings


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value17111522168121574358
Percentage of LongTermDebtFairValue369.60.00.00.00.00.00.00.0

a12344345:SunnovaEZOwnPortfolioLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:WarehouseAgreementBorrowings


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value17111522168121574358
Percentage of LongTermDebtFairValue369.60.00.00.00.00.00.00.0

a12344345:SunnovaEnergyCorporation, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:NotesPayableOtherPayables


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2.2542.7690.4720.032.4284.9241.7980.0
Percentage of LongTermDebtFairValue4.90.00.00.00.00.00.00.0

a12344345:SunnovaEnergyCorporation, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:NotesPayableOtherPayables


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2.2542.7690.4720.032.4284.9241.7980.0
Percentage of LongTermDebtFairValue4.90.00.00.00.00.00.00.0

a12344345:SunnovaLAPHoldingsLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:SecuredDebt


Long
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value10101042434344
Percentage of LongTermDebtFairValue0.00.00.00.00.00.00.0

a12344345:SunnovaLAPHoldingsLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:SecuredDebt


Long
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value10101042434344
Percentage of LongTermDebtFairValue0.00.00.00.00.00.00.0

a12344345:SunnovaRAYSIIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1261271291301331351370.0
Percentage of LongTermDebtFairValue271.80.00.00.00.00.00.00.0

a12344345:SunnovaRAYSIIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1461501521551391461350.0
Percentage of LongTermDebtFairValue315.50.00.00.00.00.00.00.0

a12344345:SunnovaSolIIIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2020-12-31
Value254
Percentage of LongTermDebtFairValue548.5

a12344345:SunnovaSolIIIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2020-12-31
Value254
Percentage of LongTermDebtFairValue548.5

a12344345:SunnovaSolIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value3994044084120.0
Percentage of LongTermDebtFairValue860.80.00.00.00.0

a12344345:SunnovaSolIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value4274384424440.0
Percentage of LongTermDebtFairValue920.70.00.00.00.0

nova:HeliosIIIIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Long
Period End2021-06-302021-03-312020-12-31
Value127131135
Percentage of LongTermDebtFairValue0.00.0291.0

nova:HeliosIIIIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Long
Period End2021-06-302021-03-312020-12-31
Value134139149
Percentage of LongTermDebtFairValue0.00.0321.9

nova:HeliosIIIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2021-06-302021-03-312020-12-31
Value232232239
Percentage of LongTermDebtFairValue0.00.0515.3

nova:HeliosIIIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2021-06-302021-03-312020-12-31
Value266266286
Percentage of LongTermDebtFairValue0.00.0617.2

nova:HeliosIVIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Long
Period End2021-06-302021-03-312020-12-31
Value135141146
Percentage of LongTermDebtFairValue0.00.0314.8

nova:HeliosIVIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Long
Period End2021-06-302021-03-312020-12-31
Value132136145
Percentage of LongTermDebtFairValue0.00.0313.2

nova:HeliosIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2021-03-312020-12-31
Value208211
Percentage of LongTermDebtFairValue0.0456.0

nova:HeliosIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2021-03-312020-12-31
Value216220
Percentage of LongTermDebtFairValue0.0475.8

nova:HeliosVIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Long
Period End2021-06-302021-03-31
Value180186
Percentage of LongTermDebtFairValue0.00.0

nova:HeliosVIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Long
Period End2021-06-302021-03-31
Value176182
Percentage of LongTermDebtFairValue0.00.0

nova:MR, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:NotesPayableOtherPayables


Long
Period End2021-06-30
Value23
Percentage of LongTermDebtFairValue0.0

nova:MR, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:NotesPayableOtherPayables


Long
Period End2021-06-30
Value23
Percentage of LongTermDebtFairValue0.0

nova:SunnovaEnergyCorporation, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:NotesPayableOtherPayables


Long
Period End2020-12-31
Value2.254
Percentage of LongTermDebtFairValue4.9

nova:SunnovaEnergyCorporation, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:NotesPayableOtherPayables


Long
Period End2020-12-31
Value2.254
Percentage of LongTermDebtFairValue4.9

nova:SunnovaRAYSIIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2021-06-302021-03-312020-12-31
Value123125126
Percentage of LongTermDebtFairValue0.00.0271.8

nova:SunnovaRAYSIIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2021-06-302021-03-312020-12-31
Value136138146
Percentage of LongTermDebtFairValue0.00.0315.5

nova:SunnovaSolIIIIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2021-06-30
Value318
Percentage of LongTermDebtFairValue0.0

nova:SunnovaSolIIIIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2021-06-30
Value318
Percentage of LongTermDebtFairValue0.0

nova:SunnovaSolIIIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2021-06-302021-03-312020-12-31
Value251252254
Percentage of LongTermDebtFairValue0.00.0548.5

nova:SunnovaSolIIIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2021-06-302021-03-312020-12-31
Value240241254
Percentage of LongTermDebtFairValue0.00.0548.5

nova:SunnovaSolIssuerLLC, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2021-06-302021-03-312020-12-31
Value391395399
Percentage of LongTermDebtFairValue0.00.0860.8

nova:SunnovaSolIssuerLLC, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:AssetBackedSecurities


Long
Period End2021-06-302021-03-312020-12-31
Value401404427
Percentage of LongTermDebtFairValue0.00.0920.7

us-gaap:LongTermDebtFairValue us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value278621622123201618911671149812091264987
Percentage of LongTermDebtFairValue0.00.04572.40.00.00.00.00.00.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value283722142246216020241790151712641290994
Percentage of LongTermDebtFairValue0.00.04837.50.00.00.00.00.00.00.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2020-12-31
Value1174
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2020-12-31
Value110
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2020-12-31
Value161
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2020-12-31
Value63
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2020-12-31
Value107
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2020-12-31
Value505
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo100.0

us-gaap:LossContingencyAccrualAtCarryingValue us-gaap:LossContingenciesByNatureOfContingency

us-gaap:LossContingencyAccrualAtCarryingValue

us-gaap:PerformanceGuarantee


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3300000.02900000.05700000.04900000.04000000.03300000.06500000.05700000.05000000.04026000.06000000.05440000.04487000.04173000.0
Percentage of LossContingencyAccrualAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossContingencyAccrualCarryingValueCurrent

us-gaap:LossContingencyAccrualCarryingValueCurrent


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2896000.02349000.03308000.02921000.02947000.02502000.04067000.03885000.03618000.02580000.0
Percentage of LossContingencyAccrualCarryingValueCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossContingencyAccrualCarryingValueCurrent us-gaap:LossContingenciesByNatureOfContingency

us-gaap:PerformanceGuarantee


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2900000.02300000.03300000.02900000.02900000.02500000.04100000.03900000.03600000.02600000.0
Percentage of LossContingencyAccrualCarryingValueCurrent100.197.999.899.398.499.9100.8100.499.5100.8

us-gaap:LossContingencyAccrualCarryingValueNoncurrent us-gaap:LossContingenciesByNatureOfContingency

us-gaap:LossContingencyAccrualCarryingValueNoncurrent

us-gaap:PerformanceGuarantee


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value438000.0556000.02400000.02000000.01000000.0805000.02400000.01800000.01400000.03500000.0
Percentage of LossContingencyAccrualCarryingValueNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesAndLoansReceivableNetCurrent

us-gaap:NotesAndLoansReceivableNetCurrent


Notes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value3629242017151311107.601
Percentage of NotesAndLoansReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesAndLoansReceivableNetCurrent us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:NotesReceivable


Notes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value3629242017151311107.6
Percentage of NotesAndLoansReceivableNetCurrent100.0100.199.9100.199.9100.2100.3100.499.6100.0

us-gaap:NotesAndLoansReceivableNetNoncurrent

us-gaap:NotesAndLoansReceivableNetNoncurrent


Notes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value773622513428378338297255223172
Percentage of NotesAndLoansReceivableNetNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesPayable dei:LegalEntity, us-gaap:LongtermDebtType

us-gaap:NotesPayable

nova:MR, us-gaap:NotesPayableOtherPayables


Notes
Period End2021-04-30
Value29
Percentage of NotesPayable100.0

us-gaap:NotesReceivableFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:NotesReceivableFairValueDisclosure

us-gaap:CarryingReportedAmountFairValueDisclosure


Notes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value809651537448396353311266233179
Percentage of NotesReceivableFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure


Notes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value822664548453398357314266233179
Percentage of NotesReceivableFairValueDisclosure101.6101.9102.0101.0100.5100.9100.8100.0100.0100.2

us-gaap:NotesReceivableGross

us-gaap:NotesReceivableGross


Notes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value835672555463410365312
Percentage of NotesReceivableGross100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesReceivableGross us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:NonperformingFinancingReceivable


Notes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value7.9516.786.8555.7472.8722.044
Percentage of NotesReceivableGross1.01.01.21.20.70.6

us-gaap:PerformingFinancingReceivable


Notes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value827666548457407363
Percentage of NotesReceivableGross99.099.098.898.899.399.4

us-gaap:NotesReceivableGross us-gaap:FinancingReceivablesPeriodPastDue

nova:FinancialAsset190DaysPastDue


Notes
Period End2021-06-302020-12-31
Value108.504
Percentage of NotesReceivableGross1.31.5

nova:FinancialAsset91180DaysPastDue


Notes
Period End2021-06-302020-12-31
Value2.3531.733
Percentage of NotesReceivableGross0.30.3

nova:FinancialAssetGreaterThan180DaysPastDue


Notes
Period End2021-06-302020-12-31
Value7.9516.855
Percentage of NotesReceivableGross1.01.2

us-gaap:FinancialAssetNotPastDue


Notes
Period End2021-06-302020-12-31
Value814537
Percentage of NotesReceivableGross97.596.9

us-gaap:FinancialAssetPastDue


Notes
Period End2021-06-302020-12-31
Value2017
Percentage of NotesReceivableGross2.53.1

us-gaap:NumberOfStatesInWhichEntityOperates

us-gaap:NumberOfStatesInWhichEntityOperates


Number
Period End2021-06-302021-03-312020-12-312020-09-30
Value25.025.020.020.0
Percentage of NumberOfStatesInWhichEntityOperates100.0100.0100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3.943.933.933.940.03940.03940.03940.03940.04580.04560.04630.04620.0462
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:DomesticCountry


Operating
Period End2020-12-31
Value1200
Percentage of OperatingLossCarryforwards100.0

us-gaap:OtherAssetsMiscellaneousCurrent

us-gaap:OtherAssetsMiscellaneousCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value6000.03000.03000.01505000.025000.046000.00
Percentage of OtherAssetsMiscellaneousCurrent100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherAssetsMiscellaneousNoncurrent

us-gaap:OtherAssetsMiscellaneousNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value39262419181618
Percentage of OtherAssetsMiscellaneousNoncurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCommitment

us-gaap:OtherCommitment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value73625554473732
Percentage of OtherCommitment100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCommitment us-gaap:OtherCommitments

a12344345:LongTermDealerCommitments


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value9289888974
Percentage of OtherCommitment165.3163.4187.0238.7227.5

nova:LongTermDealerCommitments


Other
Period End2021-06-302021-03-31
Value8498
Percentage of OtherCommitment115.5157.6

us-gaap:OtherCommitmentDueInFifthYear us-gaap:OtherCommitments

us-gaap:OtherCommitmentDueInFifthYear

a12344345:LongTermDealerCommitments


Other
Period End2020-12-31
Value2191000.0
Percentage of OtherCommitmentDueInFifthYear100.0

us-gaap:OtherCommitmentDueInFourthYear us-gaap:OtherCommitments

us-gaap:OtherCommitmentDueInFourthYear

a12344345:LongTermDealerCommitments


Other
Period End2020-12-312020-09-30
Value129.766
Percentage of OtherCommitmentDueInFourthYear100.0100.0

us-gaap:OtherCommitmentDueInNextTwelveMonths us-gaap:OtherCommitments

us-gaap:OtherCommitmentDueInNextTwelveMonths

a12344345:LongTermDealerCommitments


Other
Period End2020-12-312020-09-30
Value2833
Percentage of OtherCommitmentDueInNextTwelveMonths100.0100.0

nova:LongTermDealerCommitments


Other
Period End2021-06-302021-03-31
Value4140
Percentage of OtherCommitmentDueInNextTwelveMonths0.00.0

us-gaap:OtherCommitmentDueInSecondYear us-gaap:OtherCommitments

us-gaap:OtherCommitmentDueInSecondYear

a12344345:LongTermDealerCommitments


Other
Period End2020-12-312020-09-30
Value3533
Percentage of OtherCommitmentDueInSecondYear100.0100.0

us-gaap:OtherCommitmentDueInThirdYear us-gaap:OtherCommitments

us-gaap:OtherCommitmentDueInThirdYear

a12344345:LongTermDealerCommitments


Other
Period End2020-12-312020-09-30
Value1210
Percentage of OtherCommitmentDueInThirdYear100.0100.0

us-gaap:OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear us-gaap:OtherCommitments

us-gaap:OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear

a12344345:LongTermDealerCommitments


Other
Period End2020-09-30
Value0.484
Percentage of OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear100.0

nova:LongTermDealerCommitments


Other
Period End2021-06-302021-03-31
Value1531
Percentage of OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear0.00.0

us-gaap:OtherPrepaidExpenseCurrent

us-gaap:OtherPrepaidExpenseCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value159.3188.6457.4284.987.1237.382.739
Percentage of OtherPrepaidExpenseCurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherReceivablesNetCurrent

us-gaap:OtherReceivablesNetCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value232121136.0949.2646.1475.9224.5313.721
Percentage of OtherReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherReceivablesNetCurrent us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value0.840.8130.5830.9030.2140.0420.004
Percentage of OtherReceivablesNetCurrent3.63.82.76.83.50.50.1

us-gaap:OtherSundryLiabilitiesCurrent

us-gaap:OtherSundryLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value382000.022000.027000.025000.0027000.0410000.0542000.020000.0
Percentage of OtherSundryLiabilitiesCurrent100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:PurchaseObligation

us-gaap:PurchaseObligation


Purchase
Period End2021-06-302021-03-312020-12-312020-09-30
Value6388101103
Percentage of PurchaseObligation100.0100.0100.0100.0

us-gaap:PurchaseObligationDueInNextTwelveMonths

us-gaap:PurchaseObligationDueInNextTwelveMonths


Purchase
Period End2021-06-302021-03-312020-12-312020-09-30
Value17262826
Percentage of PurchaseObligationDueInNextTwelveMonths100.0100.0100.0100.0

us-gaap:PurchaseObligationDueInSecondYear

us-gaap:PurchaseObligationDueInSecondYear


Purchase
Period End2021-06-302021-03-312020-12-312020-09-30
Value26262626
Percentage of PurchaseObligationDueInSecondYear100.0100.0100.0100.0

us-gaap:PurchaseObligationDueInThirdYear

us-gaap:PurchaseObligationDueInThirdYear


Purchase
Period End2021-06-302021-03-312020-12-312020-09-30
Value19192626
Percentage of PurchaseObligationDueInThirdYear100.0100.0100.0100.0

us-gaap:PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear

us-gaap:PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear


Purchase
Period End2021-03-312020-09-30
Value153.327
Percentage of PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear100.0100.0

us-gaap:RedeemableNoncontrollingInterestEquityCarryingAmount

us-gaap:RedeemableNoncontrollingInterestEquityCarryingAmount


Redeemable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1401371361352382421721561079485736549380.0
Percentage of RedeemableNoncontrollingInterestEquityCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RestrictedCash

us-gaap:RestrictedCash


Restricted
Period End2020-12-312019-12-312018-12-31
Value1686634
Percentage of RestrictedCash100.0100.0100.0

us-gaap:RestrictedCash us-gaap:RestrictedCashAndCashEquivalentsCashAndCashEquivalents

a12344345:DebtAndInverterReserves


Restricted
Period End2020-12-312019-12-312018-12-31
Value935528
Percentage of RestrictedCash55.982.982.2

a12344345:LettersOfCreditForOfficeLease


Restricted
Period End2020-12-312019-12-312018-12-31
Value0.3750.7250.725
Percentage of RestrictedCash0.21.12.1

a12344345:OtherRestrictedCash


Restricted
Period End2020-12-312019-12-312018-12-31
Value1.3440.770.594
Percentage of RestrictedCash0.81.21.7

a12344345:TaxEquityReserves


Restricted
Period End2020-12-312019-12-312018-12-31
Value729.9044.796
Percentage of RestrictedCash43.114.814.0

us-gaap:RestrictedCashCurrent

us-gaap:RestrictedCashCurrent


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value39437354183010160.4820.435.190.3682.9794.555
Percentage of RestrictedCashCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashNoncurrent

us-gaap:RestrictedCashNoncurrent


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value6168957263655641403429282520
Percentage of RestrictedCashNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


Revenue
Period End2021-06-302021-03-312020-12-312020-09-30
Value1800170016001400
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value16.6915.8911.9511.8311.7511.7411.93
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-30
Value16.0316.0116.0616.21
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312017-12-31
Value59689451130.2120.2420.2320.0780.1290.124
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue


Share
Period End2021-06-302021-03-312020-12-312020-09-30
Value59689451
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue


Share
Period End2021-06-302021-03-312020-12-312020-09-30
Value59689451
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-30
Value16.6716.6616.0616.21
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue


Sharebased
Period End2021-06-302021-03-312019-12-312018-12-31
Value18.3518.353.523.48
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0

us-gaap:TaxCreditCarryforwardAmount

us-gaap:TaxCreditCarryforwardAmount


Tax
Period End2020-12-312019-12-31
Value267246
Percentage of TaxCreditCarryforwardAmount100.0100.0

us-gaap:TaxCreditCarryforwardAmount us-gaap:TaxCreditCarryforward

us-gaap:InvestmentCredit


Tax
Period End2020-12-312019-12-31
Value2020
Percentage of TaxCreditCarryforwardAmount7.78.3

Line plots across dimensions of each concept


us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
(None,)
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amountus-gaap: Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service
us-gaap:Assets
us-gaap:ConsolidatedEntities
(None,)
Assetsus-gaap: Consolidated Entities
us-gaap:Liabilities
us-gaap:ConsolidatedEntities
(None,)
Liabilitiesus-gaap: Consolidated Entities
us-gaap:Cash
us-gaap:ConsolidatedEntities
(None,)
Cashus-gaap: Consolidated Entities
us-gaap:InventoryNet
us-gaap:PublicUtilitiesInventory
(None,)
Inventory Netus-gaap: Public Utilities Inventory
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:OtherLiabilitiesCurrent
us-gaap:ConsolidatedEntities
(None,)
Other Liabilities Currentus-gaap: Consolidated Entities
us-gaap:DeferredFinanceCostsNoncurrentNet
dei:LegalEntity
(None,)
Deferred Finance Costs Noncurrent Netdei: Legal Entity
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents
(None,)
Stockholders Equity Including Portion Attributable To Noncontrolling Interestus-gaap: Statement Equity Components
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents
('srt:CumulativeEffectPeriodOfAdoptionAdjustment', None)
Stockholders Equity Including Portion Attributable To Noncontrolling Interestus-gaap: Cumulative Effect Period Of Adoption, us-gaap: Statement Equity Components
us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents
(None,)
Stock Issued During Period Value New Issuesus-gaap: Statement Equity Components
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents
(None,)
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Valueus-gaap: Statement Equity Components