00017726952023Q3falseDecember 31http://fasb.org/us-gaap/2023#OtherOperatingIncomeExpenseNethttp://fasb.org/us-gaap/2023#OtherOperatingIncomeExpenseNethttp://fasb.org/us-gaap/2023#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2023#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2023#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2023#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2023#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2023#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#LiabilitiesOtherThanLongtermDebtNoncurrenthttp://fasb.org/us-gaap/2023#LiabilitiesOtherThanLongtermDebtNoncurrenthttp://fasb.org/us-gaap/2023#LiabilitiesOtherThanLongtermDebtNoncurrenthttp://fasb.org/us-gaap/2023#LiabilitiesOtherThanLongtermDebtNoncurrent00017726952023-01-012023-09-3000017726952023-10-23xbrli:shares00017726952023-09-30iso4217:USD00017726952022-12-31iso4217:USDxbrli:shares0001772695us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-09-300001772695us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-12-3100017726952023-07-012023-09-3000017726952022-07-012022-09-3000017726952022-01-012022-09-3000017726952021-12-3100017726952022-09-300001772695us-gaap:CommonStockMember2021-12-310001772695nova:AdditionalPaidinCapitalCommonStockMember2021-12-310001772695us-gaap:RetainedEarningsMember2021-12-310001772695us-gaap:ParentMember2021-12-310001772695us-gaap:NoncontrollingInterestMember2021-12-3100017726952022-01-012022-03-310001772695us-gaap:RetainedEarningsMember2022-01-012022-03-310001772695us-gaap:ParentMember2022-01-012022-03-310001772695us-gaap:NoncontrollingInterestMember2022-01-012022-03-310001772695us-gaap:CommonStockMember2022-01-012022-03-310001772695nova:AdditionalPaidinCapitalCommonStockMember2022-01-012022-03-3100017726952022-03-310001772695us-gaap:CommonStockMember2022-03-310001772695nova:AdditionalPaidinCapitalCommonStockMember2022-03-310001772695us-gaap:RetainedEarningsMember2022-03-310001772695us-gaap:ParentMember2022-03-310001772695us-gaap:NoncontrollingInterestMember2022-03-3100017726952022-04-012022-06-300001772695us-gaap:RetainedEarningsMember2022-04-012022-06-300001772695us-gaap:ParentMember2022-04-012022-06-300001772695us-gaap:NoncontrollingInterestMember2022-04-012022-06-300001772695us-gaap:CommonStockMember2022-04-012022-06-300001772695nova:AdditionalPaidinCapitalCommonStockMember2022-04-012022-06-3000017726952022-06-300001772695us-gaap:CommonStockMember2022-06-300001772695nova:AdditionalPaidinCapitalCommonStockMember2022-06-300001772695us-gaap:RetainedEarningsMember2022-06-300001772695us-gaap:ParentMember2022-06-300001772695us-gaap:NoncontrollingInterestMember2022-06-300001772695us-gaap:RetainedEarningsMember2022-07-012022-09-300001772695us-gaap:ParentMember2022-07-012022-09-300001772695us-gaap:NoncontrollingInterestMember2022-07-012022-09-300001772695us-gaap:CommonStockMember2022-07-012022-09-300001772695nova:AdditionalPaidinCapitalCommonStockMember2022-07-012022-09-300001772695us-gaap:CommonStockMember2022-09-300001772695nova:AdditionalPaidinCapitalCommonStockMember2022-09-300001772695us-gaap:RetainedEarningsMember2022-09-300001772695us-gaap:ParentMember2022-09-300001772695us-gaap:NoncontrollingInterestMember2022-09-300001772695us-gaap:CommonStockMember2022-12-310001772695nova:AdditionalPaidinCapitalCommonStockMember2022-12-310001772695us-gaap:RetainedEarningsMember2022-12-310001772695us-gaap:ParentMember2022-12-310001772695us-gaap:NoncontrollingInterestMember2022-12-3100017726952023-01-012023-03-310001772695us-gaap:RetainedEarningsMember2023-01-012023-03-310001772695us-gaap:ParentMember2023-01-012023-03-310001772695us-gaap:NoncontrollingInterestMember2023-01-012023-03-310001772695us-gaap:CommonStockMember2023-01-012023-03-310001772695nova:AdditionalPaidinCapitalCommonStockMember2023-01-012023-03-3100017726952023-03-310001772695us-gaap:CommonStockMember2023-03-310001772695nova:AdditionalPaidinCapitalCommonStockMember2023-03-310001772695us-gaap:RetainedEarningsMember2023-03-310001772695us-gaap:ParentMember2023-03-310001772695us-gaap:NoncontrollingInterestMember2023-03-3100017726952023-04-012023-06-300001772695us-gaap:RetainedEarningsMember2023-04-012023-06-300001772695us-gaap:ParentMember2023-04-012023-06-300001772695us-gaap:NoncontrollingInterestMember2023-04-012023-06-300001772695us-gaap:CommonStockMember2023-04-012023-06-300001772695nova:AdditionalPaidinCapitalCommonStockMember2023-04-012023-06-3000017726952023-06-300001772695us-gaap:CommonStockMember2023-06-300001772695nova:AdditionalPaidinCapitalCommonStockMember2023-06-300001772695us-gaap:RetainedEarningsMember2023-06-300001772695us-gaap:ParentMember2023-06-300001772695us-gaap:NoncontrollingInterestMember2023-06-300001772695us-gaap:RetainedEarningsMember2023-07-012023-09-300001772695us-gaap:ParentMember2023-07-012023-09-300001772695us-gaap:NoncontrollingInterestMember2023-07-012023-09-300001772695us-gaap:CommonStockMember2023-07-012023-09-300001772695nova:AdditionalPaidinCapitalCommonStockMember2023-07-012023-09-300001772695us-gaap:CommonStockMember2023-09-300001772695nova:AdditionalPaidinCapitalCommonStockMember2023-09-300001772695us-gaap:RetainedEarningsMember2023-09-300001772695us-gaap:ParentMember2023-09-300001772695us-gaap:NoncontrollingInterestMember2023-09-30nova:customernova:state0001772695nova:SolarServiceAgreementMembersrt:MinimumMember2023-01-012023-09-300001772695nova:SolarServiceAgreementMembersrt:MaximumMember2023-01-012023-09-300001772695nova:LeaseAgreementOptionOneMembernova:LeaseandPowerPurchaseAgreementPPAMember2023-01-012023-09-30nova:renewalOption0001772695nova:LeaseandPowerPurchaseAgreementPPAMembernova:LeaseAgreementOptionTwoMember2023-01-012023-09-300001772695srt:MinimumMembernova:AncillaryProductsMember2023-01-012023-09-300001772695srt:MaximumMembernova:AncillaryProductsMember2023-01-012023-09-3000017726952019-07-292023-09-300001772695srt:ScenarioPreviouslyReportedMember2022-03-310001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2022-03-310001772695srt:ScenarioPreviouslyReportedMember2022-06-300001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2022-06-300001772695srt:ScenarioPreviouslyReportedMember2022-09-300001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2022-09-300001772695srt:ScenarioPreviouslyReportedMember2022-01-012022-03-310001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2022-01-012022-03-310001772695srt:ScenarioPreviouslyReportedMember2022-04-012022-06-300001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2022-04-012022-06-300001772695srt:ScenarioPreviouslyReportedMember2022-01-012022-06-300001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2022-01-012022-06-3000017726952022-01-012022-06-300001772695srt:ScenarioPreviouslyReportedMember2022-07-012022-09-300001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2022-07-012022-09-300001772695srt:ScenarioPreviouslyReportedMember2022-01-012022-09-300001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2022-01-012022-09-300001772695us-gaap:RetainedEarningsMembersrt:ScenarioPreviouslyReportedMember2021-12-310001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMemberus-gaap:RetainedEarningsMember2021-12-310001772695us-gaap:RetainedEarningsMembersrt:ScenarioPreviouslyReportedMember2022-01-012022-03-310001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMemberus-gaap:RetainedEarningsMember2022-01-012022-03-310001772695us-gaap:RetainedEarningsMembersrt:ScenarioPreviouslyReportedMember2022-03-310001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMemberus-gaap:RetainedEarningsMember2022-03-310001772695us-gaap:RetainedEarningsMembersrt:ScenarioPreviouslyReportedMember2022-04-012022-06-300001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMemberus-gaap:RetainedEarningsMember2022-04-012022-06-300001772695us-gaap:RetainedEarningsMembersrt:ScenarioPreviouslyReportedMember2022-06-300001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMemberus-gaap:RetainedEarningsMember2022-06-300001772695us-gaap:RetainedEarningsMembersrt:ScenarioPreviouslyReportedMember2022-07-012022-09-300001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMemberus-gaap:RetainedEarningsMember2022-07-012022-09-300001772695us-gaap:RetainedEarningsMembersrt:ScenarioPreviouslyReportedMember2022-09-300001772695srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMemberus-gaap:RetainedEarningsMember2022-09-300001772695nova:BatteriesandComponentsMember2023-09-300001772695nova:BatteriesandComponentsMember2022-12-310001772695nova:HomebuilderConstructionInProgressMember2023-09-300001772695nova:HomebuilderConstructionInProgressMember2022-12-310001772695nova:ModulesandInvertersMember2023-09-300001772695nova:ModulesandInvertersMember2022-12-310001772695nova:MetersAndModemsMember2023-09-300001772695nova:MetersAndModemsMember2022-12-310001772695nova:OtherInventoryMember2023-09-300001772695nova:OtherInventoryMember2022-12-310001772695us-gaap:FairValueMeasurementsRecurringMember2023-09-300001772695us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2023-09-300001772695us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001772695us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001772695us-gaap:FairValueMeasurementsRecurringMember2022-12-310001772695us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2022-12-310001772695us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001772695us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001772695nova:ContingentConsiderationLiabilityMember2022-12-310001772695nova:ContingentConsiderationLiabilityMember2021-12-310001772695nova:ContingentConsiderationLiabilityMember2023-01-012023-09-300001772695nova:ContingentConsiderationLiabilityMember2022-01-012022-09-300001772695nova:ContingentConsiderationLiabilityMember2023-09-300001772695nova:ContingentConsiderationLiabilityMember2022-09-300001772695us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputPriceVolatilityMembersrt:WeightedAverageMember2023-09-30xbrli:pure0001772695nova:MeasurementInputRevenueRiskPremiumMemberus-gaap:FairValueInputsLevel3Membersrt:WeightedAverageMember2023-09-300001772695us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputDiscountRateMembersrt:WeightedAverageMember2023-09-300001772695us-gaap:FairValueInputsLevel3Membernova:MeasurementInputProbabilityOfSuccessMembersrt:WeightedAverageMember2023-09-300001772695nova:PowerPurchaseAgreementPPAMember2023-07-012023-09-300001772695nova:PowerPurchaseAgreementPPAMember2022-07-012022-09-300001772695nova:PowerPurchaseAgreementPPAMember2023-01-012023-09-300001772695nova:PowerPurchaseAgreementPPAMember2022-01-012022-09-300001772695nova:LeaseRevenueMember2023-07-012023-09-300001772695nova:LeaseRevenueMember2022-07-012022-09-300001772695nova:LeaseRevenueMember2023-01-012023-09-300001772695nova:LeaseRevenueMember2022-01-012022-09-300001772695nova:InventorySalesRevenueMember2023-07-012023-09-300001772695nova:InventorySalesRevenueMember2022-07-012022-09-300001772695nova:InventorySalesRevenueMember2023-01-012023-09-300001772695nova:InventorySalesRevenueMember2022-01-012022-09-300001772695nova:ServiceRevenueMember2023-07-012023-09-300001772695nova:ServiceRevenueMember2022-07-012022-09-300001772695nova:ServiceRevenueMember2023-01-012023-09-300001772695nova:ServiceRevenueMember2022-01-012022-09-300001772695nova:SolarRenewableEnergyCertificateRevenueMember2023-07-012023-09-300001772695nova:SolarRenewableEnergyCertificateRevenueMember2022-07-012022-09-300001772695nova:SolarRenewableEnergyCertificateRevenueMember2023-01-012023-09-300001772695nova:SolarRenewableEnergyCertificateRevenueMember2022-01-012022-09-300001772695nova:CashSalesRevenueMember2023-07-012023-09-300001772695nova:CashSalesRevenueMember2022-07-012022-09-300001772695nova:CashSalesRevenueMember2023-01-012023-09-300001772695nova:CashSalesRevenueMember2022-01-012022-09-300001772695nova:EasyOwnProgramRevenueMember2023-07-012023-09-300001772695nova:EasyOwnProgramRevenueMember2022-07-012022-09-300001772695nova:EasyOwnProgramRevenueMember2023-01-012023-09-300001772695nova:EasyOwnProgramRevenueMember2022-01-012022-09-300001772695nova:OtherRevenueMember2023-07-012023-09-300001772695nova:OtherRevenueMember2022-07-012022-09-300001772695nova:OtherRevenueMember2023-01-012023-09-300001772695nova:OtherRevenueMember2022-01-012022-09-3000017726952023-10-012023-09-300001772695nova:PowerPurchaseAgreementPPAMembersrt:MinimumMember2023-01-012023-09-300001772695srt:MaximumMembernova:PowerPurchaseAgreementPPAMember2023-01-012023-09-300001772695nova:LeaseAgreementOptionOneMembernova:PowerPurchaseAgreementPPAMember2023-01-012023-09-300001772695nova:PowerPurchaseAgreementPPAMembernova:LeaseAgreementOptionTwoMember2023-01-012023-09-300001772695srt:MinimumMembernova:LeaseRevenueMember2023-01-012023-09-300001772695srt:MaximumMembernova:LeaseRevenueMember2023-01-012023-09-300001772695nova:LeaseAgreementOptionOneMembernova:LeaseRevenueMember2023-01-012023-09-300001772695nova:LeaseAgreementOptionTwoMembernova:LeaseRevenueMember2023-01-012023-09-30utr:kWh0001772695nova:SolarRenewableEnergyCertificatesMember2022-12-310001772695nova:SolarRenewableEnergyCertificatesMember2023-09-300001772695srt:MinimumMembernova:EasyOwnProgramRevenueMember2023-01-012023-09-300001772695srt:MedianMembernova:EasyOwnProgramRevenueMember2023-01-012023-09-300001772695srt:MaximumMembernova:EasyOwnProgramRevenueMember2023-01-012023-09-30nova:FICO_score0001772695nova:EasyOwnProgramRevenueMember2023-09-300001772695nova:EasyOwnProgramRevenueMember2022-12-310001772695nova:PowerPurchaseAgreementsandLeaseRevenueMember2023-09-300001772695nova:PowerPurchaseAgreementsandLeaseRevenueMember2022-12-310001772695nova:SolarReceivablesMember2023-09-300001772695nova:SolarReceivablesMember2022-12-310001772695nova:InvestmentTaxCreditsMember2023-01-012023-09-300001772695nova:InvestmentTaxCreditsMember2023-09-300001772695us-gaap:ElectricGenerationEquipmentMember2023-09-300001772695us-gaap:ElectricGenerationEquipmentMember2022-12-310001772695us-gaap:ConstructionInProgressMember2023-09-300001772695us-gaap:ConstructionInProgressMember2022-12-310001772695nova:AssetRetirementObligationsMember2023-09-300001772695nova:AssetRetirementObligationsMember2022-12-310001772695us-gaap:SoftwareAndSoftwareDevelopmentCostsMember2023-09-300001772695us-gaap:SoftwareAndSoftwareDevelopmentCostsMember2022-12-310001772695srt:MinimumMemberus-gaap:OfficeEquipmentMember2023-09-300001772695srt:MaximumMemberus-gaap:OfficeEquipmentMember2023-09-300001772695us-gaap:OfficeEquipmentMember2023-09-300001772695us-gaap:OfficeEquipmentMember2022-12-310001772695us-gaap:LeaseholdImprovementsMembersrt:MinimumMember2023-09-300001772695srt:MaximumMemberus-gaap:LeaseholdImprovementsMember2023-09-300001772695us-gaap:LeaseholdImprovementsMember2023-09-300001772695us-gaap:LeaseholdImprovementsMember2022-12-310001772695us-gaap:FurnitureAndFixturesMember2023-09-300001772695us-gaap:FurnitureAndFixturesMember2022-12-310001772695srt:MinimumMemberus-gaap:VehiclesMember2023-09-300001772695srt:MaximumMemberus-gaap:VehiclesMember2023-09-300001772695us-gaap:VehiclesMember2023-09-300001772695us-gaap:VehiclesMember2022-12-310001772695srt:MinimumMemberus-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember2023-09-300001772695srt:MaximumMemberus-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember2023-09-300001772695us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember2023-09-300001772695us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember2022-12-310001772695us-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695us-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695us-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695us-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695us-gaap:NotesReceivableMember2023-07-012023-09-300001772695us-gaap:NotesReceivableMember2022-07-012022-09-300001772695us-gaap:NotesReceivableMember2023-01-012023-09-300001772695us-gaap:NotesReceivableMember2022-01-012022-09-300001772695us-gaap:NotesReceivableMember2023-09-300001772695us-gaap:NotesReceivableMember2022-12-310001772695nova:FinancialAsset190DaysPastDueMember2023-09-300001772695nova:FinancialAsset190DaysPastDueMember2022-12-310001772695nova:FinancialAsset91180DaysPastDueMember2023-09-300001772695nova:FinancialAsset91180DaysPastDueMember2022-12-310001772695nova:FinancialAssetGreaterThan180DaysPastDueMember2023-09-300001772695nova:FinancialAssetGreaterThan180DaysPastDueMember2022-12-310001772695us-gaap:FinancialAssetPastDueMember2023-09-300001772695us-gaap:FinancialAssetPastDueMember2022-12-310001772695us-gaap:FinancialAssetNotPastDueMember2023-09-300001772695us-gaap:FinancialAssetNotPastDueMember2022-12-310001772695us-gaap:PerformingFinancingReceivableMember2023-09-300001772695us-gaap:NonperformingFinancingReceivableMember2023-09-300001772695nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySixMemberus-gaap:ConvertibleDebtMembernova:SEIMember2023-09-300001772695nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySixMemberus-gaap:ConvertibleDebtMembernova:SEIMember2023-01-012023-09-300001772695nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySixMemberus-gaap:ConvertibleDebtMembernova:SEIMember2022-01-012022-12-310001772695nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySixMemberus-gaap:ConvertibleDebtMembernova:SEIMember2022-12-310001772695nova:TwoPointSixTwoFiveSeniorConvertibleNotesDueFebruaryTwentyTwentyEightMemberus-gaap:ConvertibleDebtMembernova:SEIMember2023-09-300001772695nova:TwoPointSixTwoFiveSeniorConvertibleNotesDueFebruaryTwentyTwentyEightMemberus-gaap:ConvertibleDebtMembernova:SEIMember2023-01-012023-09-300001772695nova:TwoPointSixTwoFiveSeniorConvertibleNotesDueFebruaryTwentyTwentyEightMemberus-gaap:ConvertibleDebtMembernova:SEIMember2022-01-012022-12-310001772695nova:TwoPointSixTwoFiveSeniorConvertibleNotesDueFebruaryTwentyTwentyEightMemberus-gaap:ConvertibleDebtMembernova:SEIMember2022-12-310001772695us-gaap:ConvertibleDebtMembernova:SEIMember2023-09-300001772695us-gaap:ConvertibleDebtMembernova:SEIMember2022-12-310001772695us-gaap:NotesPayableOtherPayablesMembernova:SunnovaEnergyCorporationMember2023-01-012023-09-300001772695us-gaap:NotesPayableOtherPayablesMembernova:SunnovaEnergyCorporationMember2023-09-300001772695us-gaap:NotesPayableOtherPayablesMembernova:SunnovaEnergyCorporationMember2022-01-012022-12-310001772695us-gaap:NotesPayableOtherPayablesMembernova:SunnovaEnergyCorporationMember2022-12-310001772695nova:FivePointEightSevenFiveSeniorNotesDueSeptemberTwentyTwentySixMemberus-gaap:SeniorNotesMembernova:SunnovaEnergyCorporationMember2023-09-300001772695nova:FivePointEightSevenFiveSeniorNotesDueSeptemberTwentyTwentySixMemberus-gaap:SeniorNotesMembernova:SunnovaEnergyCorporationMember2023-01-012023-09-300001772695nova:FivePointEightSevenFiveSeniorNotesDueSeptemberTwentyTwentySixMemberus-gaap:SeniorNotesMembernova:SunnovaEnergyCorporationMember2022-01-012022-12-310001772695nova:FivePointEightSevenFiveSeniorNotesDueSeptemberTwentyTwentySixMemberus-gaap:SeniorNotesMembernova:SunnovaEnergyCorporationMember2022-12-310001772695nova:ElevenPointSevenFivePercentSeniorNoteMemberus-gaap:SeniorNotesMembernova:SunnovaEnergyCorporationMember2023-09-300001772695nova:ElevenPointSevenFivePercentSeniorNoteMemberus-gaap:SeniorNotesMembernova:SunnovaEnergyCorporationMember2023-01-012023-09-300001772695nova:ElevenPointSevenFivePercentSeniorNoteMemberus-gaap:SeniorNotesMembernova:SunnovaEnergyCorporationMember2022-01-012022-12-310001772695nova:ElevenPointSevenFivePercentSeniorNoteMemberus-gaap:SeniorNotesMembernova:SunnovaEnergyCorporationMember2022-12-310001772695nova:SunnovaEnergyCorporationMember2023-09-300001772695nova:SunnovaEnergyCorporationMember2022-12-310001772695us-gaap:LineOfCreditMembernova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMember2023-01-012023-09-300001772695us-gaap:LineOfCreditMembernova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMember2023-09-300001772695us-gaap:LineOfCreditMembernova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMember2022-01-012022-12-310001772695us-gaap:LineOfCreditMembernova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMember2022-12-310001772695nova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMember2023-09-300001772695nova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMember2022-12-310001772695us-gaap:AssetBackedSecuritiesMembernova:HeliosIIIssuerLLCMember2023-01-012023-09-300001772695us-gaap:AssetBackedSecuritiesMembernova:HeliosIIIssuerLLCMember2023-09-300001772695us-gaap:AssetBackedSecuritiesMembernova:HeliosIIIssuerLLCMember2022-01-012022-12-310001772695us-gaap:AssetBackedSecuritiesMembernova:HeliosIIIssuerLLCMember2022-12-310001772695nova:HeliosIIIssuerLLCMember2023-09-300001772695nova:HeliosIIIssuerLLCMember2022-12-310001772695nova:SunnovaRAYSIIssuerLLCMemberus-gaap:AssetBackedSecuritiesMember2023-01-012023-09-300001772695nova:SunnovaRAYSIIssuerLLCMemberus-gaap:AssetBackedSecuritiesMember2023-09-300001772695nova:SunnovaRAYSIIssuerLLCMemberus-gaap:AssetBackedSecuritiesMember2022-01-012022-12-310001772695nova:SunnovaRAYSIIssuerLLCMemberus-gaap:AssetBackedSecuritiesMember2022-12-310001772695nova:SunnovaRAYSIIssuerLLCMember2023-09-300001772695nova:SunnovaRAYSIIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosIIIIssuerLLCMember2023-01-012023-09-300001772695nova:LoanBackedNotesMembernova:HeliosIIIIssuerLLCMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosIIIIssuerLLCMember2022-01-012022-12-310001772695nova:LoanBackedNotesMembernova:HeliosIIIIssuerLLCMember2022-12-310001772695nova:HeliosIIIIssuerLLCMember2023-09-300001772695nova:HeliosIIIIssuerLLCMember2022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaTEPHoldingsLLCMember2023-01-012023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaTEPHoldingsLLCMember2023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaTEPHoldingsLLCMember2022-01-012022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaTEPHoldingsLLCMember2022-12-310001772695nova:SunnovaTEPHoldingsLLCMember2023-09-300001772695nova:SunnovaTEPHoldingsLLCMember2022-12-310001772695nova:SunnovaSolIssuerLLCMemberus-gaap:AssetBackedSecuritiesMember2023-01-012023-09-300001772695nova:SunnovaSolIssuerLLCMemberus-gaap:AssetBackedSecuritiesMember2023-09-300001772695nova:SunnovaSolIssuerLLCMemberus-gaap:AssetBackedSecuritiesMember2022-01-012022-12-310001772695nova:SunnovaSolIssuerLLCMemberus-gaap:AssetBackedSecuritiesMember2022-12-310001772695nova:SunnovaSolIssuerLLCMember2023-09-300001772695nova:SunnovaSolIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosIVIssuerLLCMember2023-01-012023-09-300001772695nova:LoanBackedNotesMembernova:HeliosIVIssuerLLCMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosIVIssuerLLCMember2022-01-012022-12-310001772695nova:LoanBackedNotesMembernova:HeliosIVIssuerLLCMember2022-12-310001772695nova:HeliosIVIssuerLLCMember2023-09-300001772695nova:HeliosIVIssuerLLCMember2022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio8LLCMember2023-01-012023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio8LLCMember2023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio8LLCMember2022-01-012022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio8LLCMember2022-12-310001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIIIssuerLLCMember2023-01-012023-09-300001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIIIssuerLLCMember2023-09-300001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIIIssuerLLCMember2022-01-012022-12-310001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIIIssuerLLCMember2022-12-310001772695nova:SunnovaSolIIIssuerLLCMember2023-09-300001772695nova:SunnovaSolIIIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIssuerLLCMember2023-01-012023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIssuerLLCMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIssuerLLCMember2022-01-012022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIssuerLLCMember2022-12-310001772695nova:HeliosVIssuerLLCMember2023-09-300001772695nova:HeliosVIssuerLLCMember2022-12-310001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIIIIssuerLLCMember2023-01-012023-09-300001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIIIIssuerLLCMember2023-09-300001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIIIIssuerLLCMember2022-01-012022-12-310001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIIIIssuerLLCMember2022-12-310001772695nova:SunnovaSolIIIIssuerLLCMember2023-09-300001772695nova:SunnovaSolIIIIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIIssuerLLCMember2023-01-012023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIIssuerLLCMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIIssuerLLCMember2022-01-012022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIIssuerLLCMember2022-12-310001772695nova:HeliosVIIssuerLLCMember2023-09-300001772695nova:HeliosVIIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIIIssuerLLCMember2023-01-012023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIIIssuerLLCMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIIIssuerLLCMember2022-01-012022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIIIssuerLLCMember2022-12-310001772695nova:HeliosVIIIssuerLLCMember2023-09-300001772695nova:HeliosVIIIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIIIIssuerLLCMember2023-01-012023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIIIIssuerLLCMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIIIIssuerLLCMember2022-01-012022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIIIIssuerLLCMember2022-12-310001772695nova:HeliosVIIIIssuerLLCMember2023-09-300001772695nova:HeliosVIIIIssuerLLCMember2022-12-310001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIVIssuerLLCMember2023-01-012023-09-300001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIVIssuerLLCMember2023-09-300001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIVIssuerLLCMember2022-01-012022-12-310001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIVIssuerLLCMember2022-12-310001772695nova:SunnovaSolIVIssuerLLCMember2023-09-300001772695nova:SunnovaSolIVIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosIXIssuerLLCMember2023-01-012023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosIXIssuerLLCMember2023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosIXIssuerLLCMember2022-01-012022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosIXIssuerLLCMember2022-12-310001772695nova:SunnovaHeliosIXIssuerLLCMember2023-09-300001772695nova:SunnovaHeliosIXIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIssuerLLCMember2023-01-012023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIssuerLLCMember2023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIssuerLLCMember2022-01-012022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIssuerLLCMember2022-12-310001772695nova:SunnovaHeliosXIssuerLLCMember2023-09-300001772695nova:SunnovaHeliosXIssuerLLCMember2022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaInventorySupplyLLCMember2023-01-012023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaInventorySupplyLLCMember2023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaInventorySupplyLLCMember2022-01-012022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaInventorySupplyLLCMember2022-12-310001772695nova:SunnovaSolVIssuerLLCMemberus-gaap:AssetBackedSecuritiesMember2023-01-012023-09-300001772695nova:SunnovaSolVIssuerLLCMemberus-gaap:AssetBackedSecuritiesMember2023-09-300001772695nova:SunnovaSolVIssuerLLCMemberus-gaap:AssetBackedSecuritiesMember2022-01-012022-12-310001772695nova:SunnovaSolVIssuerLLCMemberus-gaap:AssetBackedSecuritiesMember2022-12-310001772695nova:SunnovaSolVIssuerLLCMember2023-09-300001772695nova:SunnovaSolVIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIssuerLLCMember2023-01-012023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIssuerLLCMember2023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIssuerLLCMember2022-01-012022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIssuerLLCMember2022-12-310001772695nova:SunnovaHeliosXIIssuerLLCMember2023-09-300001772695nova:SunnovaHeliosXIIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIIssuerLLCMember2023-01-012023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIIssuerLLCMember2023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIIssuerLLCMember2022-01-012022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIIssuerLLCMember2022-12-310001772695nova:SunnovaHeliosXIIIssuerLLCMember2023-09-300001772695nova:SunnovaHeliosXIIIssuerLLCMember2022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio9LLCMember2023-01-012023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio9LLCMember2023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio9LLCMember2022-01-012022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio9LLCMember2022-12-310001772695nova:SunnovaAssetPortfolio9LLCMember2023-09-300001772695nova:SunnovaAssetPortfolio9LLCMember2022-12-310001772695us-gaap:LineOfCreditMembernova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMember2022-08-310001772695us-gaap:LineOfCreditMembernova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMember2023-02-280001772695us-gaap:LineOfCreditMembernova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMember2022-09-300001772695us-gaap:LineOfCreditMembernova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMember2023-03-310001772695us-gaap:LineOfCreditMembernova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMember2023-08-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaTEPHoldingsLLCMember2022-10-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaTEPHoldingsLLCMember2023-03-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaTEPHoldingsLLCMember2023-08-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio8LLCMember2022-11-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio8LLCMember2023-03-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio8LLCMember2023-06-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio8LLCMember2023-08-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaInventorySupplyLLCMember2023-03-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaInventorySupplyLLCMember2023-03-012023-03-310001772695nova:SunnovaSolVIssuerLLCMembernova:AssetBackedSecurities20231ClassAMemberus-gaap:SecuredDebtMember2023-04-300001772695nova:SunnovaSolVIssuerLLCMembernova:AssetBackedSecurities20231ClassBMemberus-gaap:SecuredDebtMember2023-04-300001772695nova:SunnovaSolVIssuerLLCMembernova:AssetBackedSecurities20231ClassAMemberus-gaap:SecuredDebtMember2023-04-012023-04-300001772695nova:SunnovaSolVIssuerLLCMembernova:AssetBackedSecurities20231ClassBMemberus-gaap:SecuredDebtMember2023-04-012023-04-300001772695nova:SunnovaHeliosXIIssuerLLCMembernova:AssetBackedSecuritiesSecuritizedLoansAndReceivablesSeries2023AClassAMember2023-05-310001772695nova:SunnovaHeliosXIIssuerLLCMembernova:AssetBackedSecuritiesSecuritizedLoansAndReceivablesSeries2023AClassBMember2023-05-310001772695nova:SunnovaHeliosXIIssuerLLCMembernova:AssetBackedSecuritiesSecuritizedLoansAndReceivablesSeries2023AClassCMember2023-05-310001772695nova:SunnovaHeliosXIIssuerLLCMembernova:AssetBackedSecuritiesSecuritizedLoansAndReceivablesSeries2023AClassAMember2023-05-012023-05-310001772695nova:SunnovaHeliosXIIssuerLLCMembernova:AssetBackedSecuritiesSecuritizedLoansAndReceivablesSeries2023AClassBMember2023-05-012023-05-310001772695nova:SunnovaHeliosXIIssuerLLCMembernova:AssetBackedSecuritiesSecuritizedLoansAndReceivablesSeries2023AClassCMember2023-05-012023-05-310001772695nova:SunnovaHeliosXIIIssuerLLCMembernova:AssetBackedSecuritiesSecuritizedLoansAndReceivablesSeries2023BClassAMember2023-08-310001772695nova:AssetBackedSecuritiesSecuritizedLoansAndReceivablesSeries2023BClassBMembernova:SunnovaHeliosXIIIssuerLLCMember2023-08-310001772695nova:SunnovaHeliosXIIIssuerLLCMembernova:AssetBackedSecuritiesSecuritizedLoansAndReceivablesSeries2023BClassCMember2023-08-310001772695nova:SunnovaHeliosXIIIssuerLLCMembernova:AssetBackedSecuritiesSecuritizedLoansAndReceivablesSeries2023BClassAMember2023-08-012023-08-310001772695nova:AssetBackedSecuritiesSecuritizedLoansAndReceivablesSeries2023BClassBMembernova:SunnovaHeliosXIIIssuerLLCMember2023-08-012023-08-310001772695nova:SunnovaHeliosXIIIssuerLLCMembernova:AssetBackedSecuritiesSecuritizedLoansAndReceivablesSeries2023BClassCMember2023-08-012023-08-310001772695us-gaap:NotesPayableOtherPayablesMembernova:SunnovaEnergyCorporationMember2023-06-300001772695us-gaap:NotesPayableOtherPayablesMembernova:SunnovaEnergyCorporationMember2023-06-012023-06-300001772695us-gaap:NotesPayableOtherPayablesMembernova:SunnovaEnergyCorporationMember2023-08-310001772695us-gaap:NotesPayableOtherPayablesMembernova:SunnovaEnergyCorporationMember2023-08-012023-08-310001772695us-gaap:NotesPayableOtherPayablesMembernova:SunnovaEnergyCorporationMember2023-09-012023-09-300001772695nova:ElevenPointSevenFivePercentSeniorNoteMembernova:SunnovaEnergyCorporationMember2023-09-300001772695nova:ElevenPointSevenFivePercentSeniorNoteMembernova:SunnovaEnergyCorporationMember2023-09-012023-09-300001772695nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySixMemberus-gaap:ConvertibleDebtMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SEIMember2023-09-300001772695nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySixMemberus-gaap:ConvertibleDebtMembernova:SEIMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySixMemberus-gaap:ConvertibleDebtMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SEIMember2022-12-310001772695nova:ZeroPointTwentyFiveSeniorConvertibleNotesDueDecemberTwentyTwentySixMemberus-gaap:ConvertibleDebtMembernova:SEIMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695nova:TwoPointSixTwoFiveSeniorConvertibleNotesDueFebruaryTwentyTwentyEightMemberus-gaap:ConvertibleDebtMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SEIMember2023-09-300001772695nova:TwoPointSixTwoFiveSeniorConvertibleNotesDueFebruaryTwentyTwentyEightMemberus-gaap:ConvertibleDebtMembernova:SEIMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:TwoPointSixTwoFiveSeniorConvertibleNotesDueFebruaryTwentyTwentyEightMemberus-gaap:ConvertibleDebtMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SEIMember2022-12-310001772695nova:TwoPointSixTwoFiveSeniorConvertibleNotesDueFebruaryTwentyTwentyEightMemberus-gaap:ConvertibleDebtMembernova:SEIMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695us-gaap:NotesPayableOtherPayablesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaEnergyCorporationMember2023-09-300001772695us-gaap:NotesPayableOtherPayablesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:SunnovaEnergyCorporationMember2023-09-300001772695us-gaap:NotesPayableOtherPayablesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaEnergyCorporationMember2022-12-310001772695us-gaap:NotesPayableOtherPayablesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:SunnovaEnergyCorporationMember2022-12-310001772695nova:FivePointEightSevenFiveSeniorNotesDueSeptemberTwentyTwentySixMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:SeniorNotesMembernova:SunnovaEnergyCorporationMember2023-09-300001772695nova:FivePointEightSevenFiveSeniorNotesDueSeptemberTwentyTwentySixMemberus-gaap:SeniorNotesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:SunnovaEnergyCorporationMember2023-09-300001772695nova:FivePointEightSevenFiveSeniorNotesDueSeptemberTwentyTwentySixMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:SeniorNotesMembernova:SunnovaEnergyCorporationMember2022-12-310001772695nova:FivePointEightSevenFiveSeniorNotesDueSeptemberTwentyTwentySixMemberus-gaap:SeniorNotesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:SunnovaEnergyCorporationMember2022-12-310001772695nova:ElevenPointSevenFivePercentSeniorNoteMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:SeniorNotesMembernova:SunnovaEnergyCorporationMember2023-09-300001772695nova:ElevenPointSevenFivePercentSeniorNoteMemberus-gaap:SeniorNotesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:SunnovaEnergyCorporationMember2023-09-300001772695nova:ElevenPointSevenFivePercentSeniorNoteMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:SeniorNotesMembernova:SunnovaEnergyCorporationMember2022-12-310001772695nova:ElevenPointSevenFivePercentSeniorNoteMemberus-gaap:SeniorNotesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:SunnovaEnergyCorporationMember2022-12-310001772695us-gaap:LineOfCreditMembernova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695us-gaap:LineOfCreditMembernova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695us-gaap:LineOfCreditMembernova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695us-gaap:LineOfCreditMembernova:SunnovaEZOwnPortfolioLLCMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695us-gaap:AssetBackedSecuritiesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:HeliosIIIssuerLLCMember2023-09-300001772695us-gaap:AssetBackedSecuritiesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:HeliosIIIssuerLLCMember2023-09-300001772695us-gaap:AssetBackedSecuritiesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:HeliosIIIssuerLLCMember2022-12-310001772695us-gaap:AssetBackedSecuritiesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:HeliosIIIssuerLLCMember2022-12-310001772695nova:SunnovaRAYSIIssuerLLCMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695nova:SunnovaRAYSIIssuerLLCMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:SunnovaRAYSIIssuerLLCMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695nova:SunnovaRAYSIIssuerLLCMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:HeliosIIIIssuerLLCMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosIIIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:HeliosIIIIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosIIIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaTEPHoldingsLLCMember2023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:SunnovaTEPHoldingsLLCMember2023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaTEPHoldingsLLCMember2022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:SunnovaTEPHoldingsLLCMember2022-12-310001772695nova:SunnovaSolIssuerLLCMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695nova:SunnovaSolIssuerLLCMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:SunnovaSolIssuerLLCMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695nova:SunnovaSolIssuerLLCMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosIVIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosIVIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosIVIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosIVIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaAssetPortfolio8LLCMember2023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:SunnovaAssetPortfolio8LLCMember2023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaAssetPortfolio8LLCMember2022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:SunnovaAssetPortfolio8LLCMember2022-12-310001772695us-gaap:AssetBackedSecuritiesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaSolIIIssuerLLCMember2023-09-300001772695us-gaap:AssetBackedSecuritiesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:SunnovaSolIIIssuerLLCMember2023-09-300001772695us-gaap:AssetBackedSecuritiesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaSolIIIssuerLLCMember2022-12-310001772695us-gaap:AssetBackedSecuritiesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMembernova:SunnovaSolIIIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695us-gaap:AssetBackedSecuritiesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaSolIIIIssuerLLCMember2023-09-300001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIIIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695us-gaap:AssetBackedSecuritiesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaSolIIIIssuerLLCMember2022-12-310001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIIIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:HeliosVIIIssuerLLCMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:HeliosVIIIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIIIIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIIIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:HeliosVIIIIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMembernova:HeliosVIIIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIVIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIVIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIVIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695us-gaap:AssetBackedSecuritiesMembernova:SunnovaSolIVIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosIXIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosIXIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosIXIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosIXIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaHeliosXIssuerLLCMember2023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaHeliosXIssuerLLCMember2022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaInventorySupplyLLCMember2023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaInventorySupplyLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:CarryingReportedAmountFairValueDisclosureMembernova:SunnovaInventorySupplyLLCMember2022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaInventorySupplyLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695nova:SunnovaSolVIssuerLLCMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695nova:SunnovaSolVIssuerLLCMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:SunnovaSolVIssuerLLCMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695nova:SunnovaSolVIssuerLLCMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIIssuerLLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695nova:LoanBackedNotesMembernova:SunnovaHeliosXIIIssuerLLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio9LLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio9LLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio9LLCMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001772695us-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembernova:SunnovaAssetPortfolio9LLCMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001772695nova:SunnovaEZOwnPortfolioLLCMemberus-gaap:InterestRateSwapMember2023-09-300001772695nova:SunnovaEZOwnPortfolioLLCMemberus-gaap:InterestRateSwapMember2022-09-300001772695nova:SunnovaEZOwnPortfolioLLCMemberus-gaap:InterestRateSwapMember2023-01-012023-09-300001772695nova:SunnovaEZOwnPortfolioLLCMemberus-gaap:InterestRateSwapMember2022-01-012022-09-300001772695us-gaap:InterestRateSwapMembernova:SunnovaTEPHoldingsLLCMember2023-09-300001772695us-gaap:InterestRateSwapMembernova:SunnovaTEPHoldingsLLCMember2022-09-300001772695us-gaap:InterestRateSwapMembernova:SunnovaTEPHoldingsLLCMember2023-01-012023-09-300001772695us-gaap:InterestRateSwapMembernova:SunnovaTEPHoldingsLLCMember2022-01-012022-09-300001772695us-gaap:InterestRateSwapMembernova:SunnovaAssetPortfolio8LLCMember2023-09-300001772695us-gaap:InterestRateSwapMembernova:SunnovaAssetPortfolio8LLCMember2022-09-300001772695us-gaap:InterestRateSwapMembernova:SunnovaAssetPortfolio8LLCMember2023-01-012023-09-300001772695us-gaap:InterestRateSwapMembernova:SunnovaAssetPortfolio8LLCMember2022-01-012022-09-300001772695us-gaap:InterestRateSwapMembernova:SunnovaAssetPortfolio9LLCMember2023-09-300001772695us-gaap:InterestRateSwapMembernova:SunnovaAssetPortfolio9LLCMember2022-09-300001772695us-gaap:InterestRateSwapMembernova:SunnovaAssetPortfolio9LLCMember2023-01-012023-09-300001772695us-gaap:InterestRateSwapMembernova:SunnovaAssetPortfolio9LLCMember2022-01-012022-09-300001772695nova:SunnovaEZOwnPortfolioLLCMembernova:InterestRateSwapOneMember2023-09-300001772695nova:SunnovaEZOwnPortfolioLLCMembernova:InterestRateSwapOneMember2022-12-310001772695srt:MinimumMembernova:InterestRateSwapTwoMembernova:SunnovaTEPHoldingsLLCMember2023-09-300001772695srt:MaximumMembernova:InterestRateSwapTwoMembernova:SunnovaTEPHoldingsLLCMember2023-09-300001772695nova:InterestRateSwapTwoMembernova:SunnovaTEPHoldingsLLCMember2023-09-300001772695srt:MinimumMembernova:InterestRateSwapTwoMembernova:SunnovaTEPHoldingsLLCMember2022-12-310001772695srt:MaximumMembernova:InterestRateSwapTwoMembernova:SunnovaTEPHoldingsLLCMember2022-12-310001772695nova:InterestRateSwapTwoMembernova:SunnovaTEPHoldingsLLCMember2022-12-310001772695nova:InterestRateSwapThreeMembernova:SunnovaAssetPortfolio8LLCMember2023-09-300001772695nova:InterestRateSwapThreeMembernova:SunnovaAssetPortfolio8LLCMember2022-12-310001772695nova:InterestRateSwapThreeMembernova:SunnovaAssetPortfolio9LLCMember2023-09-300001772695nova:InterestRateSwapThreeMembernova:SunnovaAssetPortfolio9LLCMember2022-12-310001772695us-gaap:InterestRateSwapMember2023-09-300001772695us-gaap:InterestRateSwapMember2022-12-310001772695us-gaap:NondesignatedMemberus-gaap:InterestRateSwapMember2023-09-300001772695us-gaap:NondesignatedMemberus-gaap:InterestRateSwapMember2022-12-310001772695us-gaap:InterestRateContractMemberus-gaap:InterestExpenseMember2023-07-012023-09-300001772695us-gaap:InterestRateContractMemberus-gaap:InterestExpenseMember2022-07-012022-09-300001772695us-gaap:InterestRateContractMemberus-gaap:InterestExpenseMember2023-01-012023-09-300001772695us-gaap:InterestRateContractMemberus-gaap:InterestExpenseMember2022-01-012022-09-300001772695nova:TEP7BMembernova:ClassAMembersMember2022-12-012022-12-310001772695nova:TEP7BMembernova:ClassAMembersMember2023-02-012023-02-280001772695nova:TEP7CMembernova:ClassAMembersMember2022-11-012022-11-300001772695nova:TEP7CMembernova:ClassAMembersMember2023-03-012023-03-310001772695nova:SunnovaTEP7ELLCMembernova:ClassAMembersMember2023-05-012023-05-310001772695nova:ClassAMembersMembernova:SunnovaTEPILLCMember2023-06-012023-06-300001772695nova:TEP7GMembernova:ClassAMembersMember2023-08-012023-08-310001772695nova:TEP7FMembernova:ClassAMembersMember2023-09-012023-09-300001772695nova:ClassAMembersMembernova:SunnovaTEPVCLLCMember2021-07-012021-07-310001772695nova:ClassAMembersMembernova:SunnovaTEPVCLLCMember2023-04-012023-04-300001772695nova:SunnovaTEP6ALLCMembernova:ClassAMembersMember2021-12-012021-12-310001772695nova:SunnovaTEP6ALLCMembernova:ClassAMembersMember2023-04-012023-04-300001772695nova:SunnovaTEP7DLLCMembernova:ClassAMembersMember2022-12-012022-12-310001772695nova:SunnovaTEP7DLLCMembernova:ClassAMembersMember2023-06-012023-06-300001772695nova:SunStreetEnergyGroupLLCMember2023-01-012023-09-300001772695nova:SunStreetEnergyGroupLLCMember2022-01-012022-09-300001772695nova:PublicStockOfferingMember2023-08-012023-08-310001772695nova:PublicStockOfferingMember2023-08-300001772695nova:LongTermIncentivePlanMember2023-02-012023-02-280001772695nova:LongTermIncentivePlanMember2022-12-3100017726952022-01-012022-12-310001772695us-gaap:EmployeeStockOptionMember2023-01-012023-09-300001772695us-gaap:RestrictedStockUnitsRSUMember2022-12-310001772695us-gaap:RestrictedStockUnitsRSUMember2023-01-012023-09-300001772695us-gaap:RestrictedStockUnitsRSUMember2023-09-300001772695us-gaap:RestrictedStockUnitsRSUMember2023-07-012023-09-300001772695us-gaap:RestrictedStockUnitsRSUMember2022-07-012022-09-300001772695us-gaap:RestrictedStockUnitsRSUMember2022-01-012022-09-300001772695us-gaap:EmployeeStockMember2023-01-012023-09-300001772695us-gaap:EmployeeStockMember2022-01-012022-12-310001772695us-gaap:EmployeeStockOptionMember2023-07-012023-09-300001772695us-gaap:EmployeeStockOptionMember2022-07-012022-09-300001772695us-gaap:EmployeeStockOptionMember2023-01-012023-09-300001772695us-gaap:EmployeeStockOptionMember2022-01-012022-09-300001772695us-gaap:ConvertibleDebtMember2023-07-012023-09-300001772695us-gaap:ConvertibleDebtMember2022-07-012022-09-300001772695us-gaap:ConvertibleDebtMember2023-01-012023-09-300001772695us-gaap:ConvertibleDebtMember2022-01-012022-09-300001772695us-gaap:PerformanceGuaranteeMember2023-09-300001772695us-gaap:PerformanceGuaranteeMember2022-12-310001772695us-gaap:PerformanceGuaranteeMember2021-12-310001772695us-gaap:PerformanceGuaranteeMember2023-01-012023-09-300001772695us-gaap:PerformanceGuaranteeMember2022-01-012022-09-300001772695us-gaap:PerformanceGuaranteeMember2022-09-300001772695nova:LongTermDealerCommitmentsMember2023-09-300001772695us-gaap:SubsequentEventMember2023-10-260001772695nova:LoanBackedNotes2023GRID1ClassAMemberus-gaap:SubsequentEventMembernova:SunnovaHESIMember2023-10-260001772695nova:LoanBackedNotes2023GRID1ClassBMemberus-gaap:SubsequentEventMembernova:SunnovaHESIMember2023-10-260001772695nova:LoanBackedNotes2023GRID1ClassBMemberus-gaap:SubsequentEventMembernova:SunnovaHESIMember2023-10-262023-10-260001772695nova:LoanBackedNotes2023GRID1ClassAMemberus-gaap:SubsequentEventMembernova:SunnovaHESIMember2023-10-262023-10-26

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No ☒

The registrant had 122,416,359 shares of common stock outstanding as of October 23, 2023.

This report contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the "Securities Act"), and Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Unless the context otherwise requires, the terms "Sunnova," "the Company," "we," "us" and "our" refer to Sunnova Energy International Inc. ("SEI") and its consolidated subsidiaries. Forward-looking statements generally relate to future events or Sunnova's future financial or operating performance. Actual outcomes and results may differ materially from what is expressed or forecast in such forward-looking statements. In some cases, you can identify these statements because they contain words such as "anticipate," "believe," "contemplate," "continue," "could," "estimate," "expect," "future," "goal," "intend," "likely," "may," "plan," "potential," "predict," "project," "seek," "should," "target," "will" or the negative of these words or other similar terms or expressions that concern our expectations, strategy, plans or intentions. Forward-looking statements contained in this report include, but are not limited to, statements about:

•federal, state and local statutes, regulations and policies;

•determinations of the Internal Revenue Service ("IRS") of the fair market value of our solar energy systems;

•the price of centralized utility-generated electricity and electricity from other sources and technologies;

•technical and capacity limitations imposed by operators of the power grid;

•the availability of tax rebates, credits and incentives, including changes to the rates of, or expiration of, federal tax credits and the availability of related safe harbors;

•our need and ability to raise capital to finance the installation and acquisition of distributed solar energy systems, refinance existing debt or otherwise meet our liquidity needs;

•our expectations concerning relationships with third parties, including the attraction, retention, performance and continued existence of our dealers;

•our ability to manage our supply chains and distribution channels and the impact of natural disasters and other events beyond our control;

•our ability to retain or upgrade current customers, further penetrate existing markets or expand into new markets;

•our investment in our platform and new product offerings and the demand for and expected benefits of our platform and product offerings;

•the ability of our solar energy systems, energy storage systems or other product offerings to operate or deliver energy for any reason, including if interconnection or transmission facilities on which we rely become unavailable;

•our ability to maintain our brand and protect our intellectual property and customer data;

•our ability to manage the cost of solar energy systems, energy storage systems and our service offerings;

•the willingness of and ability of our dealers and suppliers to fulfill their respective warranty and other contractual obligations;

•our expectations regarding litigation and administrative proceedings; and

•our ability to renew or replace expiring, canceled or terminated solar service agreements at favorable rates or on a long-term basis.

Our actual results and timing of these events may differ materially from those anticipated in these forward-looking statements as a result of many factors, including but not limited to those discussed under "Risk Factors" and elsewhere in this Quarterly Report on Form 10-Q. Moreover, we operate in a very competitive and rapidly changing environment and new risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. In light of these risks, uncertainties and assumptions, the forward-looking events and circumstances discussed in this Quarterly Report on Form 10-Q may not occur and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements. We undertake no obligation to update publicly any forward-looking statements for any reason after the date of this Quarterly Report on Form 10-Q to conform these statements to actual results or to changes in our expectations, except as required by law.

(1) The consolidated assets as of September 30, 2023 and December 31, 2022 include $4,712,182 and $3,201,271, respectively, of assets of variable interest entities ("VIEs") that can only be used to settle obligations of the VIEs. These assets include cash of $51,260 and $40,382 as of September 30, 2023 and December 31, 2022, respectively; accounts receivable—trade, net of $13,789 and $8,542 as of September 30, 2023 and December 31, 2022, respectively; accounts receivable—other of $1,198 and $810 as of September 30, 2023 and December 31, 2022, respectively; other current assets of $805,774 and $422,364 as of September 30, 2023 and December 31, 2022, respectively; property and equipment, net of $3,778,707 and $2,680,587 as of September 30, 2023 and December 31, 2022, respectively; and other assets of $61,454 and $48,586 as of September 30, 2023 and December 31, 2022, respectively. The consolidated liabilities as of September 30, 2023 and December 31, 2022 include $88,275 and $66,441, respectively, of liabilities of VIEs whose creditors have no recourse to Sunnova Energy International Inc. These liabilities include accounts payable of $17,502 and $9,015 as of September 30, 2023 and December 31, 2022, respectively; accrued expenses of $77 and $287 as of September 30, 2023 and December 31, 2022, respectively; other current liabilities of $6,112 and $4,420 as of September 30, 2023 and December 31, 2022, respectively; and other long-term liabilities of $64,584 and $52,719 as of September 30, 2023 and December 31, 2022, respectively.