0000715957--12-31 Q3 0000103682--12-31 false Q3 false http://fasb.org/us-gaap/2025#OtherAssetsCurrent http://www.dominionenergy.com/20250930#ElectricFuelAndOtherEnergyRelatedPurchases http://www.dominionenergy.com/20250930#ElectricFuelAndOtherEnergyRelatedPurchases http://www.dominionenergy.com/20250930#ElectricFuelAndOtherEnergyRelatedPurchases http://www.dominionenergy.com/20250930#ElectricFuelAndOtherEnergyRelatedPurchases http://www.dominionenergy.com/20250930#ElectricFuelAndOtherEnergyRelatedPurchases http://www.dominionenergy.com/20250930#ElectricFuelAndOtherEnergyRelatedPurchases http://www.dominionenergy.com/20250930#ElectricFuelAndOtherEnergyRelatedPurchases http://www.dominionenergy.com/20250930#ElectricFuelAndOtherEnergyRelatedPurchases 2025 07 http://fasb.org/us-gaap/2025#Revenues http://fasb.org/us-gaap/2025#Revenues http://fasb.org/us-gaap/2025#Revenues http://fasb.org/us-gaap/2025#Revenues 2026-06-30 2030-04-30 April 30 2028 2030-04-30 http://fasb.org/us-gaap/2025#UsTreasuryUstInterestRateMember http://fasb.org/us-gaap/2025#UsTreasuryUstInterestRateMember http://www.dominionenergy.com/20250930#NuclearDecommissioningTrustFundMember http://www.dominionenergy.com/20250930#NuclearDecommissioningTrustFundMember http://www.dominionenergy.com/20250930#NuclearDecommissioningTrustFundMember http://www.dominionenergy.com/20250930#NuclearDecommissioningTrustFundMember http://www.dominionenergy.com/20250930#NuclearDecommissioningTrustFundMember http://www.dominionenergy.com/20250930#NuclearDecommissioningTrustFundMember 0000715957 d:NonregulatedElectricitySalesMember 2024-07-01 2024-09-30 0000715957 us-gaap:SuretyBondMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 us-gaap:RelatedPartyMember d:VirginiaElectricAndPowerCompanyMember 2024-07-01 2024-09-30 0000715957 us-gaap:NonUsMember d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:OtherNonregulatedRevenuesMember 2024-01-01 2024-09-30 0000715957 us-gaap:IntersegmentEliminationMember d:ContractedEnergyMember 2024-07-01 2024-09-30 0000715957 srt:ScenarioPreviouslyReportedMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel3Member srt:OfficeBuildingMember 2024-06-30 0000715957 d:MonetizationOfGuaranteeSettlementMember 2024-12-31 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember 2025-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:SeniorNotesDueInTwoThousandFiftyFiveMember 2025-01-01 2025-03-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-01-01 2024-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:ResidentialMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:EastOhioMember srt:MaximumMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2024-03-31 0000715957 us-gaap:PensionPlansDefinedBenefitMember 2025-01-01 2025-09-30 0000715957 us-gaap:IntersegmentEliminationMember d:ContractedEnergyMember 2025-01-01 2025-09-30 0000715957 us-gaap:IntersegmentEliminationMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:InterestRateHedgesMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:ElectricityMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember srt:MaximumMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:IndustrialMember 2025-01-01 2025-09-30 0000715957 us-gaap:OverTheCounterMember d:VirginiaElectricAndPowerCompanyMember us-gaap:CommodityContractMember 2025-09-30 0000715957 2025-01-01 2025-09-30 0000715957 srt:ConsolidationEliminationsMember 2024-01-01 2024-09-30 0000715957 d:DominionEnergyMember d:SeriesBJuniorSubordinatedNotesMember 2025-08-01 2025-08-31 0000715957 d:NonregulatedRenewableNaturalGasFacilitiesMember d:ImpairmentOfAssetsAndOtherChargesMember 2024-04-01 2024-06-30 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember d:CashEquivalentsAndOtherInvestmentMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:OtherRegulatedRevenuesMember 2024-01-01 2024-09-30 0000715957 srt:RestatementAdjustmentMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:ForeignExchangeMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-06-30 0000715957 us-gaap:ForeignExchangeMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:BasisNaturalGasNoncurrentDerivativeContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:NonUsMember d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2024-12-31 0000715957 us-gaap:CommonStockMember d:VirginiaElectricAndPowerCompanyMember 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderCCRMember 2025-01-01 2025-09-30 0000715957 d:OtherNonregulatedRevenuesMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember d:CashEquivalentsAndOtherInvestmentMember 2024-12-31 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember 2023-12-31 0000715957 d:EastOhioMember 2024-01-01 2024-03-31 0000715957 srt:WeightedAverageMember 2025-01-01 2025-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RebuildCharlottesvilleDoomsTransmissionLinesInTheCountiesOfAlbemarleAndAugustaAndTheCityOfCharlottesvilleVirginiaMember us-gaap:SubsequentEventMember 2025-10-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RevenueSubjectToRefundMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-09-30 0000715957 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-09-30 0000715957 d:QuestarGasMember 2024-04-01 2024-06-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:SecuritizedCostOfFuelUsedInElectricGenerationMember 2024-12-31 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember d:VirginiaElectricAndPowerCompanyMember us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember d:MarketPriceMember srt:MinimumMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:DominionCovePointLNGLPMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CashFlowHedgingMember us-gaap:InterestRateContractMember 2025-07-01 2025-09-30 0000715957 d:FixedPriceElectricityCurrentDerivativeContractMember 2025-01-01 2025-09-30 0000715957 d:RegulatedGasSalesMember d:CommercialMember 2024-07-01 2024-09-30 0000715957 d:QuestarGasAndWexproMember d:EnbridgeMember 2023-01-01 2023-12-31 0000715957 d:EnbridgeMember d:PsncMember 2025-01-01 2025-09-30 0000715957 us-gaap:MaterialReconcilingItemsMember 2024-01-01 2024-09-30 0000715957 d:FixedPriceNaturalGasNoncurrentDerivativeContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2023-12-31 0000715957 d:HydroelectricFacilitiesMember d:EnvironmentalProtectionAgencyAndStateRegulatoryAgenciesMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:LetterOfCreditMaturesInApril2032Member 2025-07-31 0000715957 us-gaap:OtherRegulatoryAssetsLiabilitiesMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedIncomeInvestmentsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:TransitionServicesAgreementsMember 2024-01-01 2024-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 d:TransitionServicesAgreementsMember 2024-07-01 2024-09-30 0000715957 d:FixedPriceNaturalGasCurrentDerivativeContractMember 2025-01-01 2025-09-30 0000715957 2024-01-01 2024-03-31 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:ForeignExchangeMember d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:FixedPriceElectricityCurrentDerivativeContractMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 us-gaap:IntersegmentEliminationMember us-gaap:CorporateAndOtherMember 2025-01-01 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember 2024-01-01 2024-09-30 0000715957 d:InterestRateHedgesMember 2024-12-31 0000715957 d:NonregulatedElectricitySalesMember 2024-01-01 2024-09-30 0000715957 us-gaap:RetainedEarningsMember 2025-06-30 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-12-31 0000715957 us-gaap:NoncontrollingInterestMember 2024-01-01 2024-09-30 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RebuildAquiaHarbourPossumPointTransmissionLinesAndRelatedProjectsInTheCountiesOfStaffordAndPrinceWilliamAndTheCityOfFredericksburgVirginiaMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member srt:WeightedAverageMember us-gaap:DerivativeFinancialInstrumentsAssetsMember us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2025-07-01 2025-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2024-07-01 2024-09-30 0000715957 d:OtherMember d:RegulatedGasSalesMember 2024-01-01 2024-09-30 0000715957 d:AROsAndRelatedFundingMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CashFlowHedgingMember 2025-07-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel1Member d:CashEquivalentsAndOtherInvestmentMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:NonregulatedElectricitySalesMember 2024-07-01 2024-09-30 0000715957 d:UtilityScaleSolarMember d:VirginiaElectricAndPowerCompanyMember 2024-10-01 2024-10-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2025-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NondesignatedMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NoncontrollingInterestMember 2025-06-30 0000715957 d:ResidentialMember d:RegulatedGasSalesMember 2025-01-01 2025-09-30 0000715957 us-gaap:PreferredStockMember 2023-12-31 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember srt:RestatementAdjustmentMember 2024-06-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:DeferredCostOfFuelUsedInElectricGenerationMember 2025-09-30 0000715957 us-gaap:AssetRetirementObligationCostsMember 2024-12-31 0000715957 us-gaap:ParentMember 2024-12-31 0000715957 us-gaap:ForeignExchangeMember us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedIncomeInvestmentsMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:ScenarioPreviouslyReportedMember 2024-06-30 0000715957 us-gaap:JuniorSubordinatedDebtMember d:SeriesAJuniorSubordinatedNotesMember d:DominionEnergyMember us-gaap:SubsequentEventMember 2025-10-31 0000715957 us-gaap:IntersegmentEliminationMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewDuvalMidlothianTransmissionLinesSubstationAndRelatedProjectsInChesterfieldCountyVirginiaMember 2025-01-01 2025-09-30 0000715957 d:FebruaryTwoThousandTwentyFiveConstructionUpdateMember d:VirginiaElectricAndPowerCompanyMember d:CVOWCommercialProjectMember 2025-09-30 0000715957 d:SolarMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:PartialRebuildAndConstructNewMeadowvilleTransmissionLinesSubstationsAndRelatedProjectsInChesterfieldCountyVirginiaMember 2025-09-30 0000715957 us-gaap:CarryingReportedAmountFairValueDisclosureMember 2025-09-30 0000715957 d:EliminationsAndReconcilingItemsMember 2025-07-01 2025-09-30 0000715957 d:SeriesAJuniorSubordinatedNotesMember d:DominionEnergyMember 2025-08-01 2025-08-31 0000715957 us-gaap:CommodityContractMember 2023-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:UtilityScaleSolarAndEnergyStorageMember us-gaap:SubsequentEventMember 2025-10-31 0000715957 srt:RestatementAdjustmentMember 2024-09-30 0000715957 d:ElectricFuelAndOtherEnergyRelatedPurchasesMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member d:CashEquivalentsAndOtherInvestmentMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:WholesaleMember 2025-07-01 2025-09-30 0000715957 us-gaap:UnfavorableRegulatoryActionMember d:FinalRuleToReviseEffluentLimitationsGuidelinesForSteamElectricPowerGeneratingCategoryMember d:EnvironmentalProtectionAgencyMember d:CleanWaterActMember 2024-05-01 2024-05-31 0000715957 us-gaap:OverTheCounterMember us-gaap:CommodityContractMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommonStockMember 2024-12-31 0000715957 us-gaap:OperatingSegmentsMember d:DominionEnergySouthCarolinaMember 2024-01-01 2024-09-30 0000715957 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:ParentMember srt:RestatementAdjustmentMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2025-09-30 0000715957 us-gaap:IntersegmentEliminationMember 2024-01-01 2024-09-30 0000715957 us-gaap:NondesignatedMember d:NetIncomeLossFromDiscontinuedOperationsIncludingNoncontrollingInterestMember us-gaap:CommodityContractMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 d:AtlanticCoastPipelineLLCMember 2024-01-01 2024-09-30 0000715957 d:SouthCarolinaGeneratingCompanyIncMember 2025-01-01 2025-03-31 0000715957 us-gaap:IntersegmentEliminationMember d:ContractedEnergyMember 2025-07-01 2025-09-30 0000715957 us-gaap:FairValueMeasurementsRecurringMember country:US us-gaap:EquitySecuritiesMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommodityContractMember 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember srt:RestatementAdjustmentMember 2024-07-01 2024-09-30 0000715957 2025-09-30 0000715957 us-gaap:OperatingSegmentsMember d:DominionEnergySouthCarolinaMember 2024-07-01 2024-09-30 0000715957 us-gaap:NoncontrollingInterestMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RevenueSubjectToRefundMember 2024-12-31 0000715957 d:DominionEnergyMember us-gaap:SeriesBPreferredStockMember 2024-06-01 2024-06-30 0000715957 us-gaap:LetterOfCreditMember d:CreditFacilityMaturingInJuneTwoThousandTwentySixMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommonStockMember 2025-01-01 2025-09-30 0000715957 d:BirdseyeAndMadisonMember d:OtherSalesMember 2024-04-30 0000715957 us-gaap:CashFlowHedgingMember 2025-07-01 2025-09-30 0000715957 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2024-07-01 2024-09-30 0000715957 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:LetterOfCreditMember srt:MaximumMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember 2024-12-31 0000715957 d:ForwardSaleAgreementMember 2025-06-30 0000715957 us-gaap:PensionPlansDefinedBenefitMember d:QuestarGasMember 2024-06-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:ResidentialMember 2024-01-01 2024-09-30 0000715957 d:DerivativeLiabilitiesMember 2025-09-30 0000715957 d:StonepeakMember d:OSWPMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AdditionalPaidInCapitalMember 2024-06-30 0000715957 us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedIncomeInvestmentsMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CashFlowHedgingMember us-gaap:InterestRateContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:CommonStockMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:CommercialMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:NonregulatedRenewableNaturalGasFacilitiesMember d:ImpairmentOfAssetsAndOtherChargesMember 2024-07-01 2024-09-30 0000715957 d:FloatingRateDemandNotesMember 2024-12-31 0000715957 d:LetterOfCreditMaturesInApril2032Member d:VirginiaElectricAndPowerCompanyMember 2025-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2023-12-31 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember 2024-12-31 0000715957 us-gaap:RevenueSubjectToRefundMember 2025-09-30 0000715957 us-gaap:NonUsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2025-09-30 0000715957 d:QuestarGasAndWexproMember d:EnbridgeMember 2025-07-01 2025-09-30 0000715957 d:ConstructNewApolloTwinCreekTransmissionLinesNewSubstationsAndRelatedProjectsInLoudounCountyVirginiaMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 us-gaap:OperatingSegmentsMember 2024-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RenewableEnergyInvestmentTaxCreditsMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CVOWCommercialProjectMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember d:DominionEnergyServicesIncMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:NonregulatedElectricitySalesMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommodityContractMember 2025-06-30 0000715957 d:GovernmentDebtFixedIncomeSecuritiesMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember country:US 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:SalesMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2024-07-01 2024-09-30 0000715957 d:SecuritizedCostOfFuelUsedInElectricGenerationMember 2025-09-30 0000715957 us-gaap:ParentMember srt:RestatementAdjustmentMember 2024-09-30 0000715957 us-gaap:InterestRateContractMember 2025-09-30 0000715957 us-gaap:NondesignatedMember 2025-07-01 2025-09-30 0000715957 d:TransitionServicesAgreementsMember 2025-07-01 2025-09-30 0000715957 d:ResidentialMember d:RegulatedGasSalesMember 2024-01-01 2024-09-30 0000715957 d:DominionEnergySouthCarolinaMember 2025-01-01 2025-03-31 0000715957 d:SustainabilityRevolvingCreditFacilityMember d:CreditFacilityMaturingInAprilTwoThousandTwentyEightMember 2025-04-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CashFlowHedgingMember 2025-01-01 2025-09-30 0000715957 d:AlternativeRevenueProgramsMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AdditionalPaidInCapitalMember 2024-12-31 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-01-01 2024-09-30 0000715957 us-gaap:NoncontrollingInterestMember 2024-07-01 2024-09-30 0000715957 d:SeniorNotesDueInTwoThousandTwentyEightMember d:DominionEnergyMember 2025-05-01 2025-05-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:SubsequentEventMember d:EnergyStorageMember 2025-10-01 2025-10-31 0000715957 d:AlternativeRevenueProgramsMember 2024-07-01 2024-09-30 0000715957 us-gaap:RetainedEarningsMember 2025-07-01 2025-09-30 0000715957 us-gaap:RetainedEarningsMember srt:ScenarioPreviouslyReportedMember 2024-07-01 2024-09-30 0000715957 us-gaap:OtherCurrentLiabilitiesMember d:AtlanticCoastPipelineLLCMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:ResidentialMember 2025-07-01 2025-09-30 0000715957 d:OtherRegulatedRevenuesMember 2024-07-01 2024-09-30 0000715957 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FixedIncomeInvestmentsMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:AggregateForwardSaleAgreementMember 2025-03-31 0000715957 us-gaap:EstimateOfFairValueFairValueDisclosureMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:OtherTransmissionProjectsApprovedMember 2025-09-30 0000715957 d:QuestarGasMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2024-06-30 0000715957 d:LessorToCompleteConstructionAndLeaseJonesActCompliantOffshoreWindInstallationVesselMember d:LessorMember 2025-09-30 0000715957 us-gaap:RetainedEarningsMember srt:ScenarioPreviouslyReportedMember 2024-01-01 2024-09-30 0000715957 d:EastOhioMember srt:MinimumMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2024-03-31 0000715957 d:DESCMember d:FirstMortgageBondsDueInTwoThousandThirtyFiveMember 2025-01-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember country:US 2024-12-31 0000715957 2024-02-29 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OperatingSegmentsMember 2025-09-30 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-09-30 0000715957 d:ForeignExchangeNonCurrentDerivativeContractMember 2025-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CVOWCommercialProjectMember 2025-01-01 2025-09-30 0000715957 us-gaap:CashFlowHedgingMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OperatingSegmentsMember d:TransmissionComponentOfVirginiaPowersMember d:VirginiaRegulationMember d:RiderT1Member 2025-01-01 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember 2025-07-01 2025-09-30 0000715957 srt:RestatementAdjustmentMember 2023-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderOSWMember 2025-01-01 2025-09-30 0000715957 us-gaap:OverTheCounterMember us-gaap:CommodityContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:AffiliatedEntityMember d:ServicesProvidedByAffiliatesMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CVOWCommercialProjectMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:PartialRebuildReconductorAndConstructNewNetworkTakeoffTransmissionLinesAndRelatedProjectsInTheCountiesOfFairfaxAndLoudounVirginiaMember 2025-01-01 2025-09-30 0000715957 d:ForwardSaleAgreementExpectedToBeSettledInFourthQuarterOf2027Member 2025-07-01 2025-09-30 0000715957 d:SCANAMember 2025-01-01 2025-09-30 0000715957 us-gaap:CommodityContractMember 2024-12-31 0000715957 d:RuralBroadbandCapacityProjectsMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 us-gaap:LetterOfCreditMember d:CreditFacilityMaturingInJuneTwoThousandTwentyFourMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:RestatementAdjustmentMember 2023-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-01-01 2024-09-30 0000715957 srt:ConsolidationEliminationsMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ResidentialMember us-gaap:ElectricityUsRegulatedMember 2024-01-01 2024-09-30 0000715957 d:DominionEnergyVirginiaMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CcrRemediationAshPondAndLandfillClosureCostMember 2024-12-31 0000715957 us-gaap:CommonStockMember d:VirginiaElectricAndPowerCompanyMember 2023-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:SeniorNotesDueInTwoThousandThirtyFiveMember 2025-09-30 0000715957 d:QuestarGasAndWexproMember d:EnbridgeMember 2024-01-01 2024-12-31 0000715957 us-gaap:RetainedEarningsMember 2023-12-31 0000715957 us-gaap:IntersegmentEliminationMember us-gaap:CorporateAndOtherMember 2025-07-01 2025-09-30 0000715957 d:OverrecoveredOtherPostretirementBenefitCostsMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:CommercialMember 2024-07-01 2024-09-30 0000715957 us-gaap:OperatingSegmentsMember d:DominionEnergySouthCarolinaMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NoncontrollingInterestMember 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember 2024-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember 2024-01-01 2024-09-30 0000715957 d:VariousProgramsMember 2024-01-01 2024-09-30 0000715957 d:SeniorNotesDueInTwoThousandThirtyFiveMember d:DominionEnergyMember 2025-01-01 2025-03-31 0000715957 d:VirginiaElectricAndPowerCompanyMember 2025-06-01 2025-06-30 0000715957 d:ForeignExchangeCurrentDerivativeContractMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember d:VirginiaElectricAndPowerCompanyMember us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember srt:MinimumMember us-gaap:FairValueMeasurementsRecurringMember d:PriceVolatilityMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:PrincipalOwnerMember d:ShortTermBorrowingArrangementsMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:EnvironmentalRestorationCostsMember 2025-09-30 0000715957 us-gaap:OperatingSegmentsMember 2025-07-01 2025-09-30 0000715957 d:CreditFacilityMaturingInJuneTwoThousandTwentyFiveMember d:SustainabilityRevolvingCreditFacilityMember 2025-04-30 0000715957 d:InsuranceContractsMember 2024-01-01 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:OtherDeferredCreditsAndOtherLiabilitiesMember 2025-09-30 0000715957 d:RenewableEnergyInvestmentTaxCreditsMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CorporateDebtFixedIncomeSecuritiesMember 2025-01-01 2025-09-30 0000715957 us-gaap:NuclearPlantMember 2025-09-30 0000715957 d:DeferredCostOfFuelUsedInElectricGenerationMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2025-06-30 0000715957 d:AlternativeRevenueProgramsMember d:VirginiaElectricAndPowerCompanyMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 us-gaap:DesignatedAsHedgingInstrumentMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CreditFacilityTwoInSeptemberTwoThousandTwentyFiveMember us-gaap:LetterOfCreditMember us-gaap:SubsequentEventMember 2025-10-31 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2024-09-30 0000715957 us-gaap:NoncontrollingInterestMember 2024-06-30 0000715957 us-gaap:OperatingSegmentsMember d:ContractedEnergyMember 2024-01-01 2024-09-30 0000715957 d:NNDProjectCostsMember 2024-12-31 0000715957 d:InsuranceContractsMember 2025-09-30 0000715957 us-gaap:NondesignatedMember d:NetIncomeLossFromDiscontinuedOperationsIncludingNoncontrollingInterestMember us-gaap:CommodityContractMember 2025-07-01 2025-09-30 0000715957 us-gaap:ForeignExchangeMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:AROsAndRelatedFundingMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RebuildChickahominy-ElmontTransmissionLineNewFutureTransmissionLineAndRelatedProjectsInTheCountriesOfCharlesCityHenricoAndHanoverVirginiaMember 2025-09-30 0000715957 us-gaap:NondesignatedMember d:InterestAndRelatedChargesMember us-gaap:InterestRateContractMember 2024-01-01 2024-09-30 0000715957 country:US 2024-01-01 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommonStockMember 2025-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:EstimateOfFairValueFairValueDisclosureMember 2025-09-30 0000715957 us-gaap:OverTheCounterMember d:VirginiaElectricAndPowerCompanyMember us-gaap:CommodityContractMember 2024-12-31 0000715957 d:PowerPurchaseArrangementMember 2025-01-01 2025-09-30 0000715957 d:ElectricFuelAndOtherEnergyRelatedPurchasesMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2024-07-01 2024-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember 2024-06-30 0000715957 srt:ScenarioPreviouslyReportedMember 2024-09-30 0000715957 us-gaap:ParentMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:GovernmentAndOtherRetailMember 2024-07-01 2024-09-30 0000715957 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2025-06-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember d:VirginiaElectricAndPowerCompanyMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember srt:MaximumMember us-gaap:CommodityContractMember d:FinancialTransmissionRightsMember 2025-01-01 2025-09-30 0000715957 d:GovernmentDebtFixedIncomeSecuritiesMember d:VirginiaElectricAndPowerCompanyMember 2024-01-01 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:GovernmentAndOtherRetailMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:LetterOfCreditMember 2024-01-01 2024-12-31 0000715957 d:OverrecoveredOtherPostretirementBenefitCostsMember 2024-12-31 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:RestatementAdjustmentMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember d:MarketPriceMember srt:MinimumMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:CommodityContractMember d:FinancialTransmissionRightsMember 2025-01-01 2025-09-30 0000715957 d:DeferredRiderCostsForVirginiaElectricUtilityMember 2024-12-31 0000715957 us-gaap:RetainedEarningsMember srt:RestatementAdjustmentMember 2024-01-01 2024-09-30 0000715957 d:DeferredCostOfFuelUsedInElectricGenerationMember 2025-09-30 0000715957 us-gaap:PreferredStockMember 2025-06-30 0000715957 d:RegulatedGasTransportationAndStorageMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CorporateAndOtherMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:NonUsMember d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2024-12-31 0000715957 us-gaap:LetterOfCreditMember d:CreditFacilityMaturingInJuneTwoThousandTwentyFourMember 2025-09-30 0000715957 d:DominionEnergyVirginiaMember d:VirginiaElectricAndPowerCompanyMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderT1Member 2025-01-01 2025-09-30 0000715957 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommodityContractMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember srt:MinimumMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:ElectricityMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:VariableInterestEntityPrimaryBeneficiaryMember 2024-12-31 0000715957 us-gaap:OperatingSegmentsMember d:ContractedEnergyMember 2024-07-01 2024-09-30 0000715957 us-gaap:NoncontrollingInterestMember 2023-12-31 0000715957 us-gaap:CarryingReportedAmountFairValueDisclosureMember d:VirginiaElectricAndPowerCompanyMember 2024-12-31 0000715957 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member srt:WeightedAverageMember us-gaap:DerivativeFinancialInstrumentsAssetsMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:ElectricityMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:DeferredCostOfFuelUsedInElectricGenerationMember d:VirginiaElectricAndPowerCompanyMember 2024-12-31 0000715957 us-gaap:RelatedPartyMember d:VirginiaElectricAndPowerCompanyMember us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember d:DominionEnergyServicesIncMember 2024-12-31 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2024-01-01 2024-09-30 0000715957 d:SeniorNotesDueInTwoThousandTwentyEightMember d:DominionEnergyMember 2025-05-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ExchangeTradedMember us-gaap:CommodityContractMember 2025-09-30 0000715957 us-gaap:RevolvingCreditFacilityMember 2025-09-30 0000715957 d:AtlanticCoastPipelineLLCMember 2025-01-01 2025-09-30 0000715957 d:MonetizationOfGuaranteeSettlementMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember srt:RestatementAdjustmentMember 2024-09-30 0000715957 d:DominionEnergyMember d:SeriesBJuniorSubordinatedNotesMember srt:MaximumMember 2025-08-31 0000715957 us-gaap:NonUsMember 2025-01-01 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember srt:ScenarioPreviouslyReportedMember 2024-07-01 2024-09-30 0000715957 d:TransitionServicesAgreementsMember 2025-01-01 2025-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:WholesaleMember 2024-01-01 2024-09-30 0000715957 us-gaap:RevolvingCreditFacilityMember 2025-04-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RebuildAndConstructNewFentressYadkinTransmissionLinesAndRelatedProjectsInTheCityOfChesapeakeVirginiaMember 2025-01-01 2025-09-30 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:RestatementAdjustmentMember 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-06-30 0000715957 d:AshPondAndLandfillClosureCostsMember srt:MaximumMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:RestatementAdjustmentMember 2024-09-30 0000715957 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember country:US us-gaap:EquitySecuritiesMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CreditConcentrationRiskMember d:InvestmentGradeCounterpartyMember 2025-01-01 2025-09-30 0000715957 d:NNDProjectCostsMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OtherRegulatoryAssetsLiabilitiesMember 2024-12-31 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:ScenarioPreviouslyReportedMember 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember 2025-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember 2024-09-30 0000715957 us-gaap:SeriesDPreferredStockMember d:DominionEnergyMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:RestatementAdjustmentMember 2023-12-31 0000715957 us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2024-12-31 0000715957 us-gaap:OperatingSegmentsMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:AffiliatedEntityMember d:ServicesProvidedByAffiliatesMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:CommercialMember 2024-01-01 2024-09-30 0000715957 us-gaap:ExchangeTradedMember us-gaap:CommodityContractMember 2024-12-31 0000715957 us-gaap:CashFlowHedgingMember us-gaap:InterestRateContractMember 2024-07-01 2024-09-30 0000715957 us-gaap:CashFlowHedgingMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember country:US 2025-09-30 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:ScenarioPreviouslyReportedMember 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:OtherRegulatedRevenuesMember 2024-07-01 2024-09-30 0000715957 d:UtilityScaleSolarMember d:VirginiaElectricAndPowerCompanyMember 2024-10-31 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember d:VirginiaElectricAndPowerCompanyMember us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember us-gaap:FairValueMeasurementsRecurringMember srt:MaximumMember us-gaap:CommodityContractMember d:PriceVolatilityMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderDistOneMember 2025-01-01 2025-09-30 0000715957 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-12-31 0000715957 us-gaap:NondesignatedMember us-gaap:InterestRateContractMember 2024-12-31 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember 2024-12-31 0000715957 2025-07-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:FixedIncomeInvestmentsMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:DeferredIncomeTaxChargesMember 2025-09-30 0000715957 d:DominionEnergyVirginiaMember us-gaap:IntersegmentEliminationMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:SubsequentEventMember 2025-10-01 2025-10-31 0000715957 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CashFlowHedgingMember us-gaap:InterestRateContractMember 2024-01-01 2024-09-30 0000715957 d:DominionEnergyVirginiaMember us-gaap:OperatingSegmentsMember 2024-09-30 0000715957 d:AtlanticCoastPipelineLLCMember srt:MaximumMember 2024-07-01 2024-09-30 0000715957 2025-10-24 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember country:US us-gaap:EquitySecuritiesMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-09-30 0000715957 d:RenewableEnergyInvestmentTaxCreditsMember 2024-01-01 2024-09-30 0000715957 d:FinancialTransmissionRightsElectricityCurrentDerivativeContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:ParentMember 2025-06-30 0000715957 us-gaap:DeferredIncomeTaxChargesMember 2024-12-31 0000715957 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConsolidationOfRidersBwGvAndFourOtherRidersMember 2025-01-01 2025-03-31 0000715957 d:VirginiaElectricAndPowerCompanyMember 2024-09-30 0000715957 us-gaap:RevenueSubjectToRefundMember 2024-12-31 0000715957 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:PartialRebuildChesterfield-LanexaTransmissionLinesInTheCountiesOfHenricoCharlesCityAndNewKentVirginiaMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ResidentialMember us-gaap:ElectricityUsRegulatedMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:FinancialTransmissionRightsElectricityCurrentDerivativeContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AssetRetirementObligationCostsMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-07-01 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember srt:RestatementAdjustmentMember 2023-12-31 0000715957 d:ElectricFuelAndOtherEnergyRelatedPurchasesMember d:VirginiaElectricAndPowerCompanyMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2024-07-01 2024-09-30 0000715957 us-gaap:DeferredProjectCostsMember srt:MaximumMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewTechnologyBoulevardTransmissionLinesSubstationAndRelatedProjectsInHenricoCountyVirginiaMember 2025-09-30 0000715957 d:RenewableEnergyInvestmentTaxCreditsMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:EnvironmentalRestorationCostsMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:LetterOfCreditMember us-gaap:SubsequentEventMember d:CreditFacilityInJanuaryTwoThousandTwentyFiveMember 2025-10-31 0000715957 us-gaap:LetterOfCreditMember d:CreditFacilityMaturingInJuneTwoThousandTwentyFourMember d:DominionEnergySouthCarolinaMember 2025-09-30 0000715957 us-gaap:SeriesCPreferredStockMember d:DominionEnergyMember 2024-01-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember d:FinancialTransmissionRightsMember us-gaap:CommodityContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:UnrecognizedPensionAndOtherPostretirementBenefitCostsMember 2024-12-31 0000715957 us-gaap:OperatingSegmentsMember 2024-01-01 2024-09-30 0000715957 country:US 2024-12-31 0000715957 us-gaap:ForeignExchangeMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:InterestRateCurrentDerivativeContractMember 2025-09-30 0000715957 d:ElectricFuelAndOtherEnergyRelatedPurchasesMember d:VirginiaElectricAndPowerCompanyMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:AshPondAndLandfillClosureCostsMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:DerivativeLiabilitiesMember 2024-12-31 0000715957 us-gaap:ForeignExchangeMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember d:CashEquivalentsAndOtherInvestmentMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:QuestarGasAndWexproMember d:EnbridgeMember 2025-01-01 2025-09-30 0000715957 d:CorporateDebtFixedIncomeSecuritiesMember 2025-01-01 2025-09-30 0000715957 us-gaap:DefinedBenefitPostretirementHealthCoverageMember d:AmountsAssociatedWithDominionRetireeHealthAndWelfarePlanMember d:VirginiaElectricAndPowerCompanyMember srt:AffiliatedEntityMember 2025-09-30 0000715957 us-gaap:ParentMember 2024-01-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:NonUsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2025-09-30 0000715957 d:EastOhioMember d:EnbridgeMember 2023-09-30 0000715957 srt:ConsolidationEliminationsMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CVOWCommercialProjectMember 2025-07-01 2025-09-30 0000715957 d:PurchasedGasMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember 2024-07-01 2024-09-30 0000715957 us-gaap:ParentMember 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:EnvironmentalProtectionAgencyAndStateRegulatoryAgenciesMember 2025-01-01 2025-09-30 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:SalesMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2024-01-01 2024-09-30 0000715957 d:CorporateDebtFixedIncomeSecuritiesMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember srt:ScenarioPreviouslyReportedMember 2024-01-01 2024-09-30 0000715957 d:AggregateForwardSaleAgreementMember 2025-01-01 2025-03-31 0000715957 d:AugustTwoThousandTwentyFiveConstructionUpdateMember d:VirginiaElectricAndPowerCompanyMember d:CVOWCommercialProjectMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember country:US 2024-12-31 0000715957 us-gaap:EnvironmentalRestorationCostsMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:DeferredRiderCostsForVirginiaElectricUtilityMember 2025-09-30 0000715957 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember 2025-09-30 0000715957 us-gaap:IntersegmentEliminationMember d:DominionEnergySouthCarolinaMember 2025-01-01 2025-09-30 0000715957 d:OSWPMember us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember 2025-09-30 0000715957 us-gaap:CashFlowHedgingMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:LetterOfCreditMember d:CreditFacilityOneInSeptemberTwoThousandTwentyFiveMember us-gaap:SubsequentEventMember 2025-10-31 0000715957 d:VariousProgramsMember srt:MaximumMember 2025-01-01 2025-09-30 0000715957 d:SecuritizedCostOfFuelUsedInElectricGenerationMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:IntersegmentEliminationMember d:DominionEnergySouthCarolinaMember 2025-07-01 2025-09-30 0000715957 d:DominionEnergyVirginiaMember us-gaap:OperatingSegmentsMember 2024-07-01 2024-09-30 0000715957 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2023-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:ScenarioPreviouslyReportedMember 2024-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommodityContractMember 2025-09-30 0000715957 d:EastOhioPsncAndQuestarGasMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember 2025-01-01 2025-09-30 0000715957 us-gaap:NonUsMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 d:PowerPurchaseArrangementMember 2025-07-01 2025-09-30 0000715957 d:AlternativeRevenueProgramsMember d:VirginiaElectricAndPowerCompanyMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CorporateAndOtherMember 2025-09-30 0000715957 d:ForwardSaleAgreementMember 2025-04-01 2025-06-30 0000715957 d:LessorToCompleteConstructionAndLeaseJonesActCompliantOffshoreWindInstallationVesselMember d:LessorMember 2020-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderSNAMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:PartialRebuildReconductorAndConstructNewNewPostTransmissionLinesAndRelatedProjectsInTheCountriesOfCarolineAndSpotsylvaniaVirginiaMember 2025-01-01 2025-09-30 0000715957 d:CostOfFuelMember d:SouthCarolinaRegulationMember d:DominionEnergySouthCarolinaIncMember 2025-01-01 2025-09-30 0000715957 us-gaap:RetainedEarningsMember srt:ScenarioPreviouslyReportedMember 2024-06-30 0000715957 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NondesignatedMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommodityContractMember 2024-09-30 0000715957 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2025-01-01 2025-09-30 0000715957 d:DominionEnergyVirginiaMember us-gaap:OperatingSegmentsMember 2025-07-01 2025-09-30 0000715957 d:DominionEnergyMember d:SeriesBJuniorSubordinatedNotesMember 2025-08-31 0000715957 d:AshPondAndLandfillClosureCostsMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember d:CashEquivalentsAndOtherInvestmentMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:AffiliatedEntityMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewHornbakerTransmissionLinesSwitchingStationAndRelatedProjectsInPrinceWilliamCountyVirginiaMember 2025-01-01 2025-09-30 0000715957 d:ForwardSaleAgreementMember 2025-07-01 2025-09-30 0000715957 us-gaap:PreferredStockMember 2024-09-30 0000715957 us-gaap:PensionPlansDefinedBenefitMember 2024-07-01 2024-09-30 0000715957 us-gaap:SegmentDiscontinuedOperationsMember 2025-01-01 2025-09-30 0000715957 d:DerivativeLiabilitiesMember 2024-12-31 0000715957 d:FormerGasPlantSiteWithPostClosureGroundwaterMonitoringProgramMember us-gaap:UnfavorableRegulatoryActionMember d:WasteManagementAndRemediationMember d:EnvironmentalProtectionAgencyMember 2024-01-01 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-12-31 0000715957 us-gaap:SalesMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember 2024-09-30 0000715957 us-gaap:MaterialReconcilingItemsMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AdditionalPaidInCapitalMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember country:US 2025-09-30 0000715957 d:FloatingRateDemandNotesMember 2025-09-30 0000715957 d:LessorMember d:NewCorporateOfficeMember d:BuiltToSuitLeaseArrangementWithLessorToConstructAndLeaseCorporateOfficePropertyMember 2016-07-01 2016-07-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember country:US 2025-09-30 0000715957 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2024-07-01 2024-09-30 0000715957 d:FormerGasPlantSiteWithPostClosureGroundwaterMonitoringProgramMember us-gaap:UnfavorableRegulatoryActionMember d:WasteManagementAndRemediationMember d:EnvironmentalProtectionAgencyMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewGoldenMarsTransmissionLinesAndRelatedProjectsInLoudounCountyVirginiaMember 2025-09-30 0000715957 d:ElectricDSMProgramsMember d:DominionEnergySouthCarolinaIncMember d:SouthCarolinaRegulationMember 2025-01-01 2025-01-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember srt:ScenarioPreviouslyReportedMember 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommonStockMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember 2024-06-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2024-12-31 0000715957 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member srt:NaturalGasReservesMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:CommodityContractMember 2025-09-30 0000715957 d:BasisNaturalGasCurrentDerivativeContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:OverTheCounterMember us-gaap:ForeignExchangeContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewHornbakerTransmissionLinesSwitchingStationAndRelatedProjectsInPrinceWilliamCountyVirginiaMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:DerivativeAssetsMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OperatingSegmentsMember d:DSMRidersMember d:EnergyEfficiencyProgramMember d:VirginiaRegulationMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedIncomeInvestmentsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:CommercialMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:NonUsMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:WholesaleMember 2024-01-01 2024-09-30 0000715957 us-gaap:OperatingSegmentsMember us-gaap:CorporateAndOtherMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OperatingSegmentsMember 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CorporateDebtFixedIncomeSecuritiesMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:SalesMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:SeniorNotesDueInTwoThousandFiftyFiveMember 2025-09-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AdditionalPaidInCapitalMember 2023-12-31 0000715957 d:ElectricTransmissionProjectMember d:SouthCarolinaRegulationMember d:DominionEnergySouthCarolinaIncMember 2024-12-01 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RebuildAndConstructNewFentressYadkinTransmissionLinesAndRelatedProjectsInTheCityOfChesapeakeVirginiaMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CashFlowHedgingMember 2024-07-01 2024-09-30 0000715957 us-gaap:MaterialReconcilingItemsMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:RestatementAdjustmentMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:EstimateOfFairValueFairValueDisclosureMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-06-30 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-06-30 0000715957 us-gaap:OverTheCounterMember d:VirginiaElectricAndPowerCompanyMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 d:MonetizationOfGuaranteeSettlementMember 2025-09-30 0000715957 d:OtherGuarantorObligationsMember 2025-09-30 0000715957 us-gaap:OverTheCounterMember us-gaap:InterestRateContractMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2025-07-01 2025-09-30 0000715957 us-gaap:ForeignExchangeMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:AlternativeRevenueProgramsMember d:VirginiaElectricAndPowerCompanyMember 2024-01-01 2024-09-30 0000715957 d:DominionEnergyVirginiaMember us-gaap:IntersegmentEliminationMember 2024-01-01 2024-09-30 0000715957 us-gaap:CommodityContractMember 2024-06-30 0000715957 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-01-01 2024-09-30 0000715957 us-gaap:MaterialReconcilingItemsMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AdditionalPaidInCapitalMember 2025-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:IndustrialMember 2025-07-01 2025-09-30 0000715957 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AdditionalPaidInCapitalMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewAspenAndGoldenSubstationsTransmissionLinesAndRelatedProjectsInLoudounCountyVirginiaMember 2025-09-30 0000715957 us-gaap:NoncontrollingInterestMember 2025-06-30 0000715957 us-gaap:FairValueInputsLevel3Member d:NonregulatedRenewableNaturalGasFacilitiesMember srt:MinimumMember 2024-06-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FixedIncomeInvestmentsMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:ElectricTransmissionProjectMember d:DominionEnergySouthCarolinaIncMember d:SouthCarolinaRegulationMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:ResidentialMember 2025-01-01 2025-09-30 0000715957 d:OtherMember d:RegulatedGasSalesMember 2025-07-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember d:CashEquivalentsAndOtherInvestmentMember 2025-09-30 0000715957 d:OtherSalesMember 2024-01-01 2024-09-30 0000715957 d:ResidentialMember us-gaap:ElectricityUsRegulatedMember 2025-07-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember d:CashEquivalentsAndOtherInvestmentMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember country:US 2024-01-01 2024-12-31 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommonStockMember 2025-06-01 2025-06-30 0000715957 srt:ScenarioPreviouslyReportedMember 2024-06-30 0000715957 d:RegulatedGasTransportationAndStorageMember 2024-07-01 2024-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2025-01-01 2025-09-30 0000715957 us-gaap:SeriesCPreferredStockMember d:DominionEnergyMember 2024-07-01 2024-09-30 0000715957 d:DominionEnergySouthCarolinaMember 2025-06-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:IndustrialMember 2024-07-01 2024-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:ResidentialMember 2024-07-01 2024-09-30 0000715957 us-gaap:NondesignatedMember 2024-07-01 2024-09-30 0000715957 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OperatingSegmentsMember us-gaap:CorporateAndOtherMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-03-31 0000715957 d:RiderCEMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NoncontrollingInterestMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:ScenarioPreviouslyReportedMember 2024-07-01 2024-09-30 0000715957 d:DeferredCostOfFuelUsedInElectricGenerationMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OperatingSegmentsMember 2025-01-01 2025-09-30 0000715957 us-gaap:OperatingSegmentsMember us-gaap:CorporateAndOtherMember 2025-01-01 2025-09-30 0000715957 us-gaap:SalesMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2024-07-01 2024-09-30 0000715957 us-gaap:OperatingSegmentsMember d:ContractedEnergyMember 2025-07-01 2025-09-30 0000715957 us-gaap:NonUsMember d:VirginiaElectricAndPowerCompanyMember 2024-01-01 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:InterestRateContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NoncontrollingInterestMember 2025-07-01 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember srt:ScenarioPreviouslyReportedMember 2024-01-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedIncomeInvestmentsMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:RetainedEarningsMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:LetterOfCreditMember 2023-03-31 0000715957 us-gaap:PreferredStockMember 2024-12-31 0000715957 d:NonregulatedElectricitySalesMember 2025-07-01 2025-09-30 0000715957 us-gaap:ParentMember 2025-07-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember country:US us-gaap:EquitySecuritiesMember 2024-12-31 0000715957 d:DeferredCostOfFuelUsedInElectricGenerationMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:FixedPriceNaturalGasCurrentDerivativeContractMember 2025-01-01 2025-09-30 0000715957 d:CostOfFuelMember d:DominionEnergySouthCarolinaIncMember d:SouthCarolinaRegulationMember 2025-02-01 2025-02-28 0000715957 d:FloatingRateDemandNotesMember d:ShelfRegistrationForSaleOfDemandNotesMember 2017-11-30 0000715957 d:RegulatedGasTransportationAndStorageMember 2025-01-01 2025-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:GovernmentAndOtherRetailMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 d:ForwardSaleAgreementMember 2025-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:GovernmentAndOtherRetailMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:FixedPriceNaturalGasNoncurrentDerivativeContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:OtherRegulatoryAssetsLiabilitiesMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember 2025-08-01 2025-08-31 0000715957 us-gaap:RetainedEarningsMember 2024-01-01 2024-09-30 0000715957 us-gaap:LetterOfCreditMember 2024-12-31 0000715957 d:UnrecognizedPensionAndOtherPostretirementBenefitCostsMember 2025-09-30 0000715957 us-gaap:UnfavorableRegulatoryActionMember d:FinalRuleToReviseEffluentLimitationsGuidelinesForSteamElectricPowerGeneratingCategoryMember srt:MaximumMember d:CleanWaterActMember d:EnvironmentalProtectionAgencyMember 2024-05-01 2024-05-31 0000715957 country:US 2025-01-01 2025-09-30 0000715957 d:TwentyTwentyFiveBiennialReviewMember d:VirginiaRegulationMember 2025-08-01 2025-08-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderEMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FixedIncomeInvestmentsMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:GovernmentDebtFixedIncomeSecuritiesMember d:VirginiaElectricAndPowerCompanyMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:NonregulatedElectricitySalesMember 2025-07-01 2025-09-30 0000715957 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2025-07-01 2025-09-30 0000715957 us-gaap:CommodityContractMember 2025-07-01 2025-09-30 0000715957 d:DominionEnergyVirginiaMember d:VirginiaElectricAndPowerCompanyMember 2024-01-01 2024-09-30 0000715957 us-gaap:CommodityContractMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember 2025-02-01 2025-02-28 0000715957 us-gaap:PreferredStockMember 2024-01-01 2024-09-30 0000715957 d:AshPondAndLandfillClosureCostsMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member srt:WeightedAverageMember us-gaap:DerivativeFinancialInstrumentsAssetsMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:ElectricityMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderCEOneMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderGenMember 2025-01-01 2025-09-30 0000715957 us-gaap:ParentMember srt:ScenarioPreviouslyReportedMember 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:OtherRegulatedRevenuesMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RebuildSeptaYadkinTransmissionLinePartialRebuildOfSuffolkThrasherTransmissionLineAndRelatedProjectsInIsleOfWightCountyAndTheCitiesOfChesapeakeAndSuffolkVirginiaMember 2025-09-30 0000715957 us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:ForeignExchangeMember d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderOSWOneMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:SeniorNotesDueInTwoThousandThirtyFiveMember 2025-09-01 2025-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:WholesaleMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:PartialRebuildReconductorAndConstructNewNetworkTakeoffTransmissionLinesAndRelatedProjectsInTheCountiesOfFairfaxAndLoudounVirginiaMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CashEquivalentsAndOtherInvestmentMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-01-01 2025-09-30 0000715957 d:SouthCarolinaRegulationMember 2024-07-01 2024-09-30 0000715957 d:AtlanticCoastPipelineLLCMember srt:MaximumMember 2025-07-01 2025-09-30 0000715957 d:BasisNaturalGasNoncurrentDerivativeContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:ParentMember srt:RestatementAdjustmentMember 2023-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:DSMRidersMember d:VirginiaRegulationMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:OverTheCounterMember d:VirginiaElectricAndPowerCompanyMember us-gaap:ForeignExchangeContractMember 2024-12-31 0000715957 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2025-06-30 0000715957 d:NaturalGasRatesMember d:DominionEnergySouthCarolinaIncMember 2025-06-01 2025-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommodityContractMember 2024-01-01 2024-09-30 0000715957 us-gaap:RetainedEarningsMember 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ElectricDistributionGridTransformationProjectsOneMember 2025-01-01 2025-09-30 0000715957 us-gaap:ParentMember 2025-09-30 0000715957 d:ForwardSaleAgreementMember 2025-01-01 2025-03-31 0000715957 us-gaap:EnvironmentalRestorationCostsMember 2024-12-31 0000715957 d:DominionEnergyVirginiaMember us-gaap:OperatingSegmentsMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NoncontrollingInterestMember 2024-09-30 0000715957 d:ElectricFuelAndOtherEnergyRelatedPurchasesMember d:VirginiaElectricAndPowerCompanyMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2024-01-01 2024-09-30 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:RestatementAdjustmentMember 2023-12-31 0000715957 srt:WeightedAverageMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember srt:ScenarioPreviouslyReportedMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember srt:MinimumMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember d:PriceVolatilityMember 2025-01-01 2025-09-30 0000715957 d:EndOfYearTwoThousandTwentySixMember d:VirginiaElectricAndPowerCompanyMember d:CVOWCommercialProjectMember 2024-12-31 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2025-07-01 2025-09-30 0000715957 us-gaap:RetainedEarningsMember srt:RestatementAdjustmentMember 2023-12-31 0000715957 d:AssetsHeldForSaleMember 2023-12-31 0000715957 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2024-01-01 2024-09-30 0000715957 d:DeferredNuclearRefuelingOutageCostsMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CashFlowHedgingMember us-gaap:InterestRateContractMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderSNAOneMember 2025-01-01 2025-09-30 0000715957 d:ConstructNewNebulaTransmissionLinesSubstationAndRelatedProjectsInMecklenburgCountyVirginiaMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 d:EliminationsAndReconcilingItemsMember 2024-01-01 2024-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:LetterOfCreditMember d:CreditFacilityMaturingInJuneTwoThousandTwentyFourMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OtherRegulatoryAssetsLiabilitiesMember 2025-09-30 0000715957 us-gaap:IntersegmentEliminationMember us-gaap:CorporateAndOtherMember 2024-07-01 2024-09-30 0000715957 us-gaap:CommonStockMember d:VirginiaElectricAndPowerCompanyMember 2024-01-01 2024-12-31 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:DerivativeFinancialInstrumentsAssetsMember us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember srt:MaximumMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:EnbridgeMember d:PsncMember 2024-01-01 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ChesterfieldEnergyReliabilityCenterMember 2025-03-01 2025-03-31 0000715957 d:InterestRateHedgesMember 2024-12-31 0000715957 us-gaap:SalesMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2025-07-01 2025-09-30 0000715957 us-gaap:ParentMember 2023-12-31 0000715957 d:InterestRateHedgesMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ForeignExchangeNonCurrentDerivativeContractMember 2025-09-30 0000715957 us-gaap:JuniorSubordinatedDebtMember d:DominionEnergyMember us-gaap:SubsequentEventMember 2025-10-31 0000715957 us-gaap:NoncontrollingInterestMember 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember srt:NaturalGasReservesMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember srt:MaximumMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2025-01-01 2025-09-30 0000715957 srt:RestatementAdjustmentMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:ScenarioPreviouslyReportedMember 2024-01-01 2024-09-30 0000715957 d:EnbridgeMember d:PsncMember 2024-01-01 2024-09-30 0000715957 us-gaap:ParentMember srt:ScenarioPreviouslyReportedMember 2024-01-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:NonUsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2024-12-31 0000715957 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2024-06-30 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 us-gaap:VariableInterestEntityPrimaryBeneficiaryMember 2025-09-30 0000715957 us-gaap:NoncontrollingInterestMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember 2025-07-01 2025-09-30 0000715957 us-gaap:PreferredStockMember 2024-06-30 0000715957 us-gaap:CarryingReportedAmountFairValueDisclosureMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 d:OtherRegulatedRevenuesMember 2025-07-01 2025-09-30 0000715957 us-gaap:SeriesBPreferredStockMember 2024-06-30 0000715957 d:GovernmentDebtFixedIncomeSecuritiesMember 2024-01-01 2024-12-31 0000715957 us-gaap:ParentMember srt:RestatementAdjustmentMember 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommodityContractMember 2024-12-31 0000715957 us-gaap:CommonStockMember 2025-01-01 2025-09-30 0000715957 d:NetIncomeLossFromDiscontinuedOperationsIncludingNoncontrollingInterestMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:AshPondAndLandfillClosureCostsMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RebuildAquiaHarbourPossumPointTransmissionLinesAndRelatedProjectsInTheCountiesOfStaffordAndPrinceWilliamAndTheCityOfFredericksburgVirginiaMember 2025-01-01 2025-09-30 0000715957 us-gaap:CommonStockMember 2024-01-01 2024-09-30 0000715957 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-06-30 0000715957 us-gaap:EstimateOfFairValueFairValueDisclosureMember 2025-09-30 0000715957 d:NetIncomeLossFromDiscontinuedOperationsIncludingNoncontrollingInterestMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2024-01-01 2024-09-30 0000715957 us-gaap:ExchangeTradedMember us-gaap:CommodityContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:LetterOfCreditMember d:CreditFacilityOneInSeptemberTwoThousandTwentyFiveMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewCarmelChurchAndRutherGlenTransmissionLinesSubstationsAndRelatedProjectsInCarolineCountyVirginiaMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AssetRetirementObligationCostsMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:VirginiaGridTransformationAndSecurityActOf2018FilingMember 2025-03-01 2025-03-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:RestatementAdjustmentMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:RestatementAdjustmentMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ForeignExchangeCurrentDerivativeContractMember 2025-09-30 0000715957 us-gaap:JuniorSubordinatedDebtMember d:SeriesAJuniorSubordinatedNotesMember d:DominionEnergyMember 2025-08-31 0000715957 d:VirginiaElectricAndPowerCompanyMember 2025-10-24 0000715957 us-gaap:InterestRateContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:CommodityMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-07-01 2024-09-30 0000715957 2023-12-31 0000715957 d:SeniorNotesDueInTwoThousandThirtyFiveMember d:DominionEnergyMember 2025-03-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:PartialRebuildAndConstructNewMeadowvilleTransmissionLinesSubstationsAndRelatedProjectsInChesterfieldCountyVirginiaMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember country:US 2024-12-31 0000715957 us-gaap:UnfavorableRegulatoryActionMember d:FinalRuleToReviseEffluentLimitationsGuidelinesForSteamElectricPowerGeneratingCategoryMember d:EnvironmentalProtectionAgencyMember d:CleanWaterActMember 2017-04-01 2017-04-30 0000715957 us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:DeferredRiderCostsForVirginiaElectricUtilityMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2024-12-31 0000715957 us-gaap:OperatingSegmentsMember us-gaap:CorporateAndOtherMember 2024-01-01 2024-09-30 0000715957 d:DominionEnergySouthCarolinaMember 2025-07-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:UnrecognizedPensionAndOtherPostretirementBenefitCostsMember 2025-09-30 0000715957 us-gaap:SegmentDiscontinuedOperationsMember us-gaap:CommodityContractMember 2025-07-01 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember srt:ScenarioPreviouslyReportedMember 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FixedIncomeInvestmentsMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedIncomeInvestmentsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-09-30 0000715957 us-gaap:SegmentDiscontinuedOperationsMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:NonUsMember 2024-01-01 2024-12-31 0000715957 us-gaap:ForeignExchangeMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember srt:ScenarioPreviouslyReportedMember 2023-12-31 0000715957 d:OtherMember d:RegulatedGasSalesMember 2025-01-01 2025-09-30 0000715957 d:InterestRateHedgesMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 us-gaap:ParentMember srt:RestatementAdjustmentMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member srt:WeightedAverageMember us-gaap:DerivativeFinancialInstrumentsAssetsMember d:VirginiaElectricAndPowerCompanyMember us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember d:PriceVolatilityMember 2025-01-01 2025-09-30 0000715957 d:ElectricFuelAndOtherEnergyRelatedPurchasesMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2025-07-01 2025-09-30 0000715957 d:ElectricFuelAndOtherEnergyRelatedPurchasesMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2024-01-01 2024-09-30 0000715957 d:OtherNonregulatedRevenuesMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember 2025-04-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:AffiliatedEntityMember d:ServicesProvidedByAffiliatesMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RebuildChickahominy-ElmontTransmissionLineNewFutureTransmissionLineAndRelatedProjectsInTheCountriesOfCharlesCityHenricoAndHanoverVirginiaMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:PartialRebuildChesterfield-LanexaTransmissionLinesInTheCountiesOfHenricoCharlesCityAndNewKentVirginiaMember 2025-09-30 0000715957 d:InsuranceContractsMember 2025-01-01 2025-09-30 0000715957 d:NaturalGasRatesMember d:DominionEnergySouthCarolinaIncMember 2025-09-01 2025-09-30 0000715957 us-gaap:OperatingSegmentsMember d:ContractedEnergyMember 2025-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:CommercialMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember 2024-07-01 2024-09-30 0000715957 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2025-09-30 0000715957 d:VariousProgramsMember srt:MaximumMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:InterestRateHedgesMember 2025-09-30 0000715957 us-gaap:ParentMember srt:ScenarioPreviouslyReportedMember 2024-07-01 2024-09-30 0000715957 d:ResidentialMember d:RegulatedGasSalesMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewCarmelChurchAndRutherGlenTransmissionLinesSubstationsAndRelatedProjectsInCarolineCountyVirginiaMember 2025-09-30 0000715957 us-gaap:NonUsMember d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:RestatementAdjustmentMember 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AdditionalPaidInCapitalMember 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-09-30 0000715957 us-gaap:NondesignatedMember d:InterestAndRelatedChargesMember us-gaap:InterestRateContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:ScenarioPreviouslyReportedMember 2024-09-30 0000715957 us-gaap:AssetRetirementObligationCostsMember 2025-09-30 0000715957 srt:OfficeBuildingMember d:ImpairmentOfAssetsAndOtherChargesMember 2024-04-01 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewAspenAndGoldenSubstationsTransmissionLinesAndRelatedProjectsInLoudounCountyVirginiaMember 2025-01-01 2025-09-30 0000715957 us-gaap:OtherRegulatoryAssetsLiabilitiesMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:UnfavorableRegulatoryActionMember d:WasteManagementAndRemediationMember d:EnvironmentalProtectionAgencyMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:EndOfYearTwoThousandTwentySixMember d:CVOWCommercialProjectMember srt:MaximumMember 2025-09-30 0000715957 d:EndOfYearTwoThousandTwentySixMember d:VirginiaElectricAndPowerCompanyMember d:CVOWCommercialProjectMember 2024-01-01 2024-12-31 0000715957 d:SeniorNotesDueInFebruaryTwoThousandTwentyFourMember d:DominionEnergyMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CorporateAndOtherMember 2024-07-01 2024-09-30 0000715957 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2025-07-01 2025-09-30 0000715957 d:VirginiaPowerMember 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember srt:RestatementAdjustmentMember 2024-06-30 0000715957 us-gaap:NonUsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember 2024-12-31 0000715957 d:DeferredRiderCostsForVirginiaElectricUtilityMember 2025-09-30 0000715957 d:SustainabilityRevolvingCreditFacilityMember d:CreditFacilityMaturingInAprilTwoThousandTwentyEightMember 2025-04-01 2025-04-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:DeferredCostOfFuelUsedInElectricGenerationMember 2024-12-31 0000715957 d:RegulatedGasSalesMember d:CommercialMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:SeniorNotesDueInTwoThousandFiftyFiveMember 2025-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:GovernmentAndOtherRetailMember 2024-01-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OperatingSegmentsMember d:DSMRidersMember d:VirginiaRegulationMember 2025-01-01 2025-09-30 0000715957 us-gaap:CashFlowHedgingMember us-gaap:InterestRateContractMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember 2025-09-30 0000715957 us-gaap:IntersegmentEliminationMember d:DominionEnergySouthCarolinaMember 2024-01-01 2024-09-30 0000715957 us-gaap:IntersegmentEliminationMember d:DominionEnergySouthCarolinaMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember country:US us-gaap:EquitySecuritiesMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-07-01 2024-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member srt:WeightedAverageMember us-gaap:DerivativeFinancialInstrumentsAssetsMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember d:FinancialTransmissionRightsMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-07-01 2024-09-30 0000715957 us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewCentreportTransmissionLineSubstationAndRelatedProjectsInStaffordCountyVirginiaMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2024-12-31 0000715957 us-gaap:NonUsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2025-09-30 0000715957 d:PowerPurchaseArrangementMember 2024-01-01 2024-09-30 0000715957 us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-09-30 0000715957 d:DeferredNuclearRefuelingOutageCostsMember 2025-09-30 0000715957 d:TargetedToReachByEndOfYearFiveMember 2020-04-01 2020-04-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2023-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderAssociatedWithRuralBroadbandCapacityProjectMember 2025-01-01 2025-09-30 0000715957 us-gaap:CashFlowHedgingMember us-gaap:InterestRateContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewCentreportTransmissionLineSubstationAndRelatedProjectsInStaffordCountyVirginiaMember 2025-01-01 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember 2025-06-30 0000715957 d:OtherMember d:RegulatedGasSalesMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember srt:NaturalGasReservesMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:CommodityContractMember 2025-09-30 0000715957 d:VariousProgramsMember 2025-01-01 2025-09-30 0000715957 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2024-09-30 0000715957 us-gaap:RetainedEarningsMember srt:RestatementAdjustmentMember 2024-07-01 2024-09-30 0000715957 us-gaap:OtherCurrentLiabilitiesMember d:AtlanticCoastPipelineLLCMember 2024-12-31 0000715957 d:EastOhioMember d:EnbridgeMember 2025-01-01 2025-09-30 0000715957 d:UnrecognizedPensionAndOtherPostretirementBenefitCostsMember 2024-12-31 0000715957 us-gaap:CommonStockMember 2024-09-30 0000715957 d:TradingAccountAssetMember 2024-12-31 0000715957 us-gaap:SegmentDiscontinuedOperationsMember us-gaap:CommodityContractMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2025-07-01 2025-09-30 0000715957 us-gaap:IntersegmentEliminationMember us-gaap:CorporateAndOtherMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:LetterOfCreditMember d:CreditFacilityInJanuaryTwoThousandTwentyFiveMember 2025-01-31 0000715957 d:DeferredNuclearRefuelingOutageCostsMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 us-gaap:RetainedEarningsMember srt:ScenarioPreviouslyReportedMember 2023-12-31 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2024-12-31 0000715957 us-gaap:SegmentDiscontinuedOperationsMember 2024-07-01 2024-09-30 0000715957 d:AshPondAndLandfillClosureCostsMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:InterestRateCurrentDerivativeContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:WholesaleMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2024-12-31 0000715957 d:AmountsAssociatedWithDominionPensionPlanMember d:VirginiaElectricAndPowerCompanyMember us-gaap:PensionPlansDefinedBenefitMember srt:AffiliatedEntityMember 2024-12-31 0000715957 us-gaap:VariableInterestEntityPrimaryBeneficiaryMember 2024-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2025-01-01 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:GovernmentAndOtherRetailMember 2025-01-01 2025-09-30 0000715957 us-gaap:CommodityContractMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-07-01 2024-09-30 0000715957 d:EliminationsAndReconcilingItemsMember 2024-07-01 2024-09-30 0000715957 us-gaap:ParentMember 2025-01-01 2025-09-30 0000715957 d:DominionEnergyVirginiaMember d:VirginiaElectricAndPowerCompanyMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-09-30 0000715957 us-gaap:ParentMember 2024-09-30 0000715957 us-gaap:LetterOfCreditMember d:CreditFacilityMaturingInJuneTwoThousandTwentySixMember 2025-01-01 2025-09-30 0000715957 d:EastOhioMember d:EnbridgeMember 2024-01-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember d:MarketPriceMember srt:MinimumMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:ElectricityMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:FormerGasPlantSiteWithPostClosureGroundwaterMonitoringProgramMember us-gaap:UnfavorableRegulatoryActionMember d:WasteManagementAndRemediationMember d:EnvironmentalProtectionAgencyMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember srt:ScenarioPreviouslyReportedMember 2023-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 d:RegulatedGasSalesMember d:CommercialMember 2024-01-01 2024-09-30 0000715957 us-gaap:OtherCurrentLiabilitiesMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 d:TaxExemptFinancingsThreePointOneTwoFivePercentDueTwoThousandThirtyMember d:VirginiaElectricAndPowerCompanyMember 2025-09-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember 2025-06-30 0000715957 d:DominionEnergyMember 2025-01-01 2025-09-30 0000715957 us-gaap:NondesignatedMember 2024-01-01 2024-09-30 0000715957 us-gaap:CarryingReportedAmountFairValueDisclosureMember 2024-12-31 0000715957 us-gaap:RelatedPartyMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2024-12-31 0000715957 d:ConstructNewNebulaTransmissionLinesSubstationAndRelatedProjectsInMecklenburgCountyVirginiaMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 us-gaap:LetterOfCreditMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:SeniorNotesDueInTwoThousandThirtyFiveMember 2025-03-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OtherRegulatoryAssetsLiabilitiesMember 2024-12-31 0000715957 us-gaap:SeriesCPreferredStockMember d:DominionEnergyMember 2025-01-01 2025-09-30 0000715957 us-gaap:RelatedPartyMember d:VirginiaElectricAndPowerCompanyMember 2024-01-01 2024-09-30 0000715957 us-gaap:CommonStockMember 2025-06-30 0000715957 us-gaap:ParentMember srt:ScenarioPreviouslyReportedMember 2024-06-30 0000715957 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:ScenarioPreviouslyReportedMember 2023-12-31 0000715957 srt:ScenarioPreviouslyReportedMember 2023-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CorporateDebtFixedIncomeSecuritiesMember 2025-09-30 0000715957 d:NorthCarolinaRegulationMember us-gaap:SubsequentEventMember d:VirginiaPowerFuelFilingMember 2025-10-01 2025-10-31 0000715957 us-gaap:NonUsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2025-09-30 0000715957 us-gaap:RetainedEarningsMember 2024-06-30 0000715957 d:TwentyTwentyFiveBiennialReviewMember d:VirginiaRegulationMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember srt:RestatementAdjustmentMember 2024-01-01 2024-09-30 0000715957 d:QuestarGasAndWexproMember d:EnbridgeMember 2024-01-01 2024-03-31 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2024-01-01 2024-09-30 0000715957 d:InternalAndExternalCreditRatingInvestmentGradeMember us-gaap:CreditConcentrationRiskMember d:InvestmentGradeCounterpartyMember 2025-01-01 2025-09-30 0000715957 us-gaap:RetainedEarningsMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember 2025-09-30 0000715957 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommodityContractMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:SecuritizedCostOfFuelUsedInElectricGenerationMember 2025-09-30 0000715957 us-gaap:PrincipalOwnerMember d:VirginiaElectricAndPowerCompanyMember d:ShortTermBorrowingArrangementsMember srt:MaximumMember 2025-09-30 0000715957 d:EliminationsAndReconcilingItemsMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderDistMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember 2025-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NoncontrollingInterestMember 2023-12-31 0000715957 d:TradingAccountAssetMember 2025-09-30 0000715957 d:RegulatedGasTransportationAndStorageMember 2025-07-01 2025-09-30 0000715957 us-gaap:ParentMember srt:ScenarioPreviouslyReportedMember 2023-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:LetterOfCreditMember d:CreditFacilityInJanuaryTwoThousandTwentyFiveMember 2025-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:IndustrialMember 2024-01-01 2024-09-30 0000715957 d:DeferredNuclearRefuelingOutageCostsMember d:VirginiaElectricAndPowerCompanyMember 2024-12-31 0000715957 us-gaap:CommodityContractMember 2024-09-30 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember d:CashEquivalentsAndOtherInvestmentMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NondesignatedMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CorporateDebtFixedIncomeSecuritiesMember 2024-01-01 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RenewableEnergyInvestmentTaxCreditsMember 2025-01-01 2025-09-30 0000715957 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-01-01 2025-09-30 0000715957 us-gaap:NonUsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:SeniorNotesDueInTwoThousandFiftyFiveMember 2025-03-31 0000715957 d:GovernmentDebtFixedIncomeSecuritiesMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:GovernmentAndOtherRetailMember 2025-07-01 2025-09-30 0000715957 d:AmountsAssociatedWithDominionPensionPlanMember us-gaap:PensionPlansDefinedBenefitMember d:VirginiaElectricAndPowerCompanyMember srt:AffiliatedEntityMember 2025-09-30 0000715957 d:ForwardSaleAgreementMember 2025-03-31 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:ScenarioPreviouslyReportedMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:NonregulatedElectricitySalesMember 2025-01-01 2025-09-30 0000715957 us-gaap:NoncontrollingInterestMember 2024-12-31 0000715957 us-gaap:NoncontrollingInterestMember 2025-01-01 2025-09-30 0000715957 us-gaap:MaterialReconcilingItemsMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:FormerGasPlantSiteWithPostClosureGroundwaterMonitoringProgramMember us-gaap:UnfavorableRegulatoryActionMember d:WasteManagementAndRemediationMember d:EnvironmentalProtectionAgencyMember 2024-01-01 2024-12-31 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember srt:RestatementAdjustmentMember 2024-07-01 2024-09-30 0000715957 srt:RestatementAdjustmentMember 2024-06-30 0000715957 srt:MinimumMember d:AshPondAndLandfillClosureCostsMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:LessorToCompleteConstructionAndLeaseJonesActCompliantOffshoreWindInstallationVesselMember 2025-01-01 2025-09-30 0000715957 us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2025-09-30 0000715957 d:DerivativeAssetsMember 2024-12-31 0000715957 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2023-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RenewableEnergyInvestmentTaxCreditsMember 2025-07-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember srt:MaximumMember d:FinancialTransmissionRightsMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NondesignatedMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:ScenarioPreviouslyReportedMember 2023-12-31 0000715957 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:OtherNonregulatedRevenuesMember 2024-07-01 2024-09-30 0000715957 srt:ScenarioPreviouslyReportedMember 2024-01-01 2024-09-30 0000715957 d:AlternativeRevenueProgramsMember 2024-01-01 2024-09-30 0000715957 d:InsuranceContractsMember 2024-12-31 0000715957 d:LessorMember d:NewCorporateOfficeMember d:BuiltToSuitLeaseArrangementWithLessorToConstructAndLeaseCorporateOfficePropertyMember 2024-07-01 2024-07-31 0000715957 d:CashEquivalentsAndOtherInvestmentMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:DominionEnergyMember d:SeniorNotesDueInTwoThousandThirtyMember 2025-01-01 2025-03-31 0000715957 srt:RestatementAdjustmentMember 2024-12-31 0000715957 us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:ForeignExchangeMember d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:PensionPlansDefinedBenefitMember 2025-07-01 2025-09-30 0000715957 srt:ScenarioPreviouslyReportedMember 2024-07-01 2024-09-30 0000715957 d:UtilityScaleSolarMember d:VirginiaElectricAndPowerCompanyMember us-gaap:SubsequentEventMember 2025-10-01 2025-10-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember srt:RestatementAdjustmentMember 2023-12-31 0000715957 us-gaap:CommonStockMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OperatingSegmentsMember us-gaap:CorporateAndOtherMember 2025-01-01 2025-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2025-09-30 0000715957 us-gaap:LetterOfCreditMember d:CreditFacilityMaturingInAprilTwoThousandThirtyMember 2025-04-30 0000715957 d:DominionEnergyVirginiaMember us-gaap:IntersegmentEliminationMember 2025-07-01 2025-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:WholesaleMember 2025-01-01 2025-09-30 0000715957 us-gaap:ForeignExchangeMember d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:AlternativeRevenueProgramsMember 2025-07-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member srt:WeightedAverageMember d:VirginiaElectricAndPowerCompanyMember us-gaap:DerivativeFinancialInstrumentsAssetsMember us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember d:MarketPriceMember srt:MinimumMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:NonregulatedElectricitySalesMember 2025-01-01 2025-09-30 0000715957 us-gaap:OperatingSegmentsMember d:DominionEnergySouthCarolinaMember 2025-09-30 0000715957 2024-07-01 2024-09-30 0000715957 d:ConstructNewApolloTwinCreekTransmissionLinesNewSubstationsAndRelatedProjectsInLoudounCountyVirginiaMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 d:EastOhioMember us-gaap:PensionPlansDefinedBenefitMember 2024-03-31 0000715957 d:VirginiaElectricAndPowerCompanyMember 2024-01-01 2024-09-30 0000715957 d:OtherLegalMattersMember d:EastOhioMember 2024-12-31 0000715957 us-gaap:LetterOfCreditMember d:CreditFacilityMaturingInAprilTwoThousandThirtyMember 2025-04-01 2025-04-30 0000715957 d:PurchasedGasMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:GovernmentDebtFixedIncomeSecuritiesMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:WholesaleMember 2025-07-01 2025-09-30 0000715957 us-gaap:CommonStockMember 2025-07-01 2025-09-30 0000715957 2025-06-30 0000715957 d:DeferredCostOfFuelUsedInElectricGenerationMember 2024-12-31 0000715957 d:OtherSalesMember 2025-01-01 2025-09-30 0000715957 d:ElectricFuelAndOtherEnergyRelatedPurchasesMember d:VirginiaElectricAndPowerCompanyMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:ForeignExchangeMember us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OperatingSegmentsMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OtherRegulatoryAssetsLiabilitiesMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember country:US 2025-09-30 0000715957 us-gaap:OverTheCounterMember d:VirginiaElectricAndPowerCompanyMember us-gaap:InterestRateContractMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:OSWPMember us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember 2024-12-31 0000715957 d:PowerPurchaseArrangementMember 2024-07-01 2024-09-30 0000715957 srt:MinimumMember us-gaap:UnfavorableRegulatoryActionMember d:FinalRuleToReviseEffluentLimitationsGuidelinesForSteamElectricPowerGeneratingCategoryMember d:CleanWaterActMember d:EnvironmentalProtectionAgencyMember 2020-10-01 2020-10-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:LetterOfCreditMember 2025-01-01 2025-09-30 0000715957 us-gaap:ForeignExchangeMember d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:SalesAgencyAgreementsToEffectSalesUnderAtMarketProgramMember srt:MaximumMember 2025-02-01 2025-02-28 0000715957 us-gaap:RelatedPartyMember d:VirginiaElectricAndPowerCompanyMember us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember d:DominionEnergyServicesIncMember 2025-09-30 0000715957 us-gaap:OverTheCounterMember d:VirginiaElectricAndPowerCompanyMember us-gaap:ForeignExchangeContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember country:US 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:UnfavorableRegulatoryActionMember d:CleanWaterActMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:RestatementAdjustmentMember 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2025-09-30 0000715957 d:InterestRateNoncurrentDerivativeContractMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 us-gaap:SeriesCPreferredStockMember d:DominionEnergyMember 2025-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2023-12-31 0000715957 d:CcrRemediationAshPondAndLandfillClosureCostMember 2024-12-31 0000715957 us-gaap:NondesignatedMember d:InterestAndRelatedChargesMember us-gaap:InterestRateContractMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:NonregulatedRenewableNaturalGasFacilitiesMember srt:MinimumMember 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember d:CashEquivalentsAndOtherInvestmentMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel3Member srt:WeightedAverageMember us-gaap:DerivativeFinancialInstrumentsAssetsMember d:VirginiaElectricAndPowerCompanyMember srt:NaturalGasReservesMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ImpairmentOfAssetsAndOtherChargesMember 2024-01-01 2024-03-31 0000715957 d:DominionEnergyMember us-gaap:SeriesBPreferredStockMember 2024-01-01 2024-09-30 0000715957 d:TaxExemptFinancingsThreePointOneTwoFivePercentDueTwoThousandThirtyMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 us-gaap:LetterOfCreditMember d:CreditFacilityMaturingInJuneTwoThousandTwentyFourMember d:DominionEnergySouthCarolinaMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RebuildSeptaYadkinTransmissionLinePartialRebuildOfSuffolkThrasherTransmissionLineAndRelatedProjectsInIsleOfWightCountyAndTheCitiesOfChesapeakeAndSuffolkVirginiaMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:NonUsMember d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2024-12-31 0000715957 us-gaap:UnfavorableRegulatoryActionMember d:WasteManagementAndRemediationMember d:EnvironmentalProtectionAgencyMember 2025-01-01 2025-09-30 0000715957 us-gaap:LetterOfCreditMember d:CreditFacilityInJanuaryTwoThousandTwentyFiveMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ElectricDistributionGridTransformationProjectsMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:RestatementAdjustmentMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:LetterOfCreditMember d:CreditFacilityMaturingInJuneTwoThousandTwentyFourMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CorporateAndOtherMember 2024-01-01 2024-09-30 0000715957 d:DominionEnergyVirginiaMember us-gaap:OperatingSegmentsMember 2024-01-01 2024-09-30 0000715957 us-gaap:UnfavorableRegulatoryActionMember d:FinalRuleToReviseEffluentLimitationsGuidelinesForSteamElectricPowerGeneratingCategoryMember srt:MaximumMember d:EnvironmentalProtectionAgencyMember d:CleanWaterActMember 2020-10-01 2020-10-31 0000715957 d:FixedPriceElectricityNoncurrentDerivativeContractMember 2025-01-01 2025-09-30 0000715957 d:SeriesAJuniorSubordinatedNotesMember d:DominionEnergyMember srt:MaximumMember 2025-08-31 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:RestatementAdjustmentMember 2024-09-30 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:NonUsMember d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2025-09-30 0000715957 us-gaap:OperatingSegmentsMember d:DominionEnergySouthCarolinaMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:NonUsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2024-12-31 0000715957 d:RiderCEOneMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 d:DominionEnergyMember 2025-09-30 0000715957 us-gaap:DesignatedAsHedgingInstrumentMember d:VirginiaElectricAndPowerCompanyMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember srt:ScenarioPreviouslyReportedMember 2024-06-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2024-12-31 0000715957 d:EnbridgeMember d:PsncMember 2023-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:AffiliatedEntityMember d:ServicesProvidedByAffiliatesMember 2025-07-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:OtherRegulatedRevenuesMember 2024-01-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member srt:WeightedAverageMember d:VirginiaElectricAndPowerCompanyMember us-gaap:DerivativeFinancialInstrumentsAssetsMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:CommodityContractMember d:FinancialTransmissionRightsMember 2025-01-01 2025-09-30 0000715957 us-gaap:RetainedEarningsMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CashEquivalentsAndOtherInvestmentMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:SeriesCPreferredStockMember d:DominionEnergyMember 2024-12-31 0000715957 us-gaap:JuniorSubordinatedDebtMember d:DominionEnergyMember 2025-08-31 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:ScenarioPreviouslyReportedMember 2024-01-01 2024-09-30 0000715957 us-gaap:OperatingSegmentsMember d:SouthCarolinaRegulationMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommonStockMember 2025-08-01 2025-08-31 0000715957 us-gaap:DesignatedAsHedgingInstrumentMember d:VirginiaElectricAndPowerCompanyMember us-gaap:InterestRateContractMember 2024-12-31 0000715957 d:RenewableEnergyInvestmentTaxCreditsMember 2024-07-01 2024-09-30 0000715957 d:ResidentialMember d:RegulatedGasSalesMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2024-12-31 0000715957 d:OtherNonregulatedRevenuesMember 2025-01-01 2025-09-30 0000715957 d:ForwardSaleAgreementExpectedToBeSettledInFourthQuarterOf2027Member 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:WholesaleMember 2025-01-01 2025-09-30 0000715957 d:InterestRateNoncurrentDerivativeContractMember 2025-09-30 0000715957 us-gaap:NonUsMember 2025-09-30 0000715957 2024-01-01 2024-09-30 0000715957 d:CreditFacilityMaturingInJuneTwoThousandTwentyFiveMember d:SustainabilityRevolvingCreditFacilityMember 2025-04-01 2025-04-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:CommodityContractMember d:FinancialTransmissionRightsMember 2025-09-30 0000715957 d:OtherRegulatedRevenuesMember 2025-01-01 2025-09-30 0000715957 d:ThreeSixtyFourDayRevolvingCreditFacilityMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-09-30 0000715957 us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedIncomeInvestmentsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2024-01-01 2024-09-30 0000715957 us-gaap:CommodityContractMember 2025-09-30 0000715957 us-gaap:RetainedEarningsMember 2024-12-31 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 d:PurchasedGasMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2024-01-01 2024-09-30 0000715957 us-gaap:DesignatedAsHedgingInstrumentMember us-gaap:InterestRateContractMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:RestatementAdjustmentMember 2024-01-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2024-12-31 0000715957 us-gaap:IntersegmentEliminationMember d:ContractedEnergyMember 2024-01-01 2024-09-30 0000715957 us-gaap:LetterOfCreditMember 2023-03-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:UndergroundDistributionFacilitiesMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:CarbonRegulationsMember 2016-08-01 2016-08-31 0000715957 d:EastOhioMember d:EnbridgeMember 2024-01-01 2024-03-31 0000715957 us-gaap:SegmentDiscontinuedOperationsMember 2024-01-01 2024-09-30 0000715957 us-gaap:PreferredStockMember 2025-09-30 0000715957 us-gaap:UnfavorableRegulatoryActionMember d:EnvironmentalProtectionAgencyMember 2025-01-01 2025-09-30 0000715957 us-gaap:RetainedEarningsMember srt:ScenarioPreviouslyReportedMember 2024-09-30 0000715957 us-gaap:NonUsMember d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember srt:RestatementAdjustmentMember 2024-01-01 2024-09-30 0000715957 us-gaap:OperatingSegmentsMember d:ContractedEnergyMember 2025-01-01 2025-09-30 0000715957 us-gaap:SuretyBondMember 2025-09-30 0000715957 us-gaap:OperatingSegmentsMember us-gaap:CorporateAndOtherMember 2025-07-01 2025-09-30 0000715957 us-gaap:OverTheCounterMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 us-gaap:JuniorSubordinatedDebtMember d:DominionEnergyMember us-gaap:SubsequentEventMember d:SeriesBJuniorSubordinatedNotesMember 2025-10-31 0000715957 us-gaap:SeriesCPreferredStockMember d:DominionEnergyMember 2025-07-01 2025-09-30 0000715957 d:CorporateDebtFixedIncomeSecuritiesMember 2024-12-31 0000715957 us-gaap:NondesignatedMember d:InterestAndRelatedChargesMember us-gaap:InterestRateContractMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CorporateAndOtherMember 2025-07-01 2025-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember 2024-06-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:GovernmentAndOtherRetailMember 2025-07-01 2025-09-30 0000715957 us-gaap:ForeignExchangeMember d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:JuniorSubordinatedDebtMember d:DominionEnergyMember d:SeriesBJuniorSubordinatedNotesMember 2025-08-31 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember d:VirginiaElectricAndPowerCompanyMember srt:NaturalGasReservesMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember srt:MaximumMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:IndustrialMember 2024-01-01 2024-09-30 0000715957 d:RegulatedGasSalesMember d:CommercialMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:ScenarioPreviouslyReportedMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FixedIncomeInvestmentsMember d:GovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:IntersegmentEliminationMember 2025-01-01 2025-09-30 0000715957 us-gaap:NonUsMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember 2023-12-31 0000715957 d:CcrRemediationAshPondAndLandfillClosureCostMember 2025-09-30 0000715957 us-gaap:OperatingSegmentsMember us-gaap:CorporateAndOtherMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember country:US 2024-12-31 0000715957 us-gaap:CommodityContractMember 2025-06-30 0000715957 d:DominionEnergyVirginiaMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember 2025-09-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember srt:NaturalGasReservesMember srt:MinimumMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember country:US us-gaap:EquitySecuritiesMember 2025-09-30 0000715957 us-gaap:CommonStockMember 2020-11-30 0000715957 us-gaap:NonUsMember us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2025-09-30 0000715957 us-gaap:OtherRegulatoryAssetsLiabilitiesMember 2025-09-30 0000715957 us-gaap:OperatingSegmentsMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-09-30 0000715957 d:TwentyTwentyFiveBiennialReviewMember d:VirginiaRegulationMember 2025-03-01 2025-03-31 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember d:VirginiaElectricAndPowerCompanyMember srt:MinimumMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:CommodityContractMember d:FinancialTransmissionRightsMember 2025-01-01 2025-09-30 0000715957 d:SecondPhaseOfNuclearLifeExtensionProgramMember d:VirginiaElectricAndPowerCompanyMember us-gaap:OperatingSegmentsMember d:RiderSNAMember d:VirginiaRegulationMember 2025-01-01 2025-09-30 0000715957 us-gaap:SegmentDiscontinuedOperationsMember 2024-01-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderRPSMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ExchangeTradedMember us-gaap:CommodityContractMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CashFlowHedgingMember 2024-01-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel2Member d:CashEquivalentsAndOtherInvestmentMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:ScenarioPreviouslyReportedMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RenewableEnergyInvestmentTaxCreditsMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember d:DominionEnergyServicesIncMember 2025-07-01 2025-09-30 0000715957 d:InterestRateHedgesMember d:VirginiaElectricAndPowerCompanyMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:SeniorNotesDueInTwoThousandThirtyFiveMember 2025-01-01 2025-03-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:UndergroundDistributionFacilitiesOneMember 2025-01-01 2025-09-30 0000715957 d:RiderCEMember 2025-01-01 2025-09-30 0000715957 d:AlternativeRevenueProgramsMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:AffiliatedEntityMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedIncomeInvestmentsMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember srt:MaximumMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember d:CashEquivalentsAndOtherInvestmentMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 us-gaap:NonUsMember d:VirginiaElectricAndPowerCompanyMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:IndustrialMember 2024-07-01 2024-09-30 0000715957 d:DominionEnergyMember us-gaap:SeriesBPreferredStockMember 2023-12-31 0000715957 country:US 2025-09-30 0000715957 us-gaap:CashFlowHedgingMember us-gaap:InterestRateContractMember 2025-07-01 2025-09-30 0000715957 us-gaap:LetterOfCreditMember d:CreditFacilityInJanuaryTwoThousandTwentyFiveMember 2025-01-31 0000715957 d:DominionEnergyMember us-gaap:SeriesBPreferredStockMember 2024-07-01 2024-09-30 0000715957 us-gaap:UnfavorableRegulatoryActionMember d:CleanWaterActMember 2025-01-01 2025-09-30 0000715957 us-gaap:RelatedPartyMember d:VirginiaElectricAndPowerCompanyMember 2025-07-01 2025-09-30 0000715957 d:EastOhioMember d:EnbridgeMember 2023-01-01 2023-12-31 0000715957 d:SeriesAJuniorSubordinatedNotesMember d:DominionEnergyMember 2025-08-31 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedIncomeInvestmentsMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewGoldenMarsTransmissionLinesAndRelatedProjectsInLoudounCountyVirginiaMember 2025-01-01 2025-09-30 0000715957 d:JointRevolvingCreditFacilityMember 2025-09-30 0000715957 d:LessorMember d:BuiltToSuitLeaseArrangementWithLessorToConstructAndLeaseCorporateOfficePropertyMember d:NewCorporateOfficeMember 2016-07-31 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:ScenarioPreviouslyReportedMember 2024-07-01 2024-09-30 0000715957 us-gaap:PensionPlansDefinedBenefitMember 2024-01-01 2024-09-30 0000715957 us-gaap:NondesignatedMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember srt:RestatementAdjustmentMember 2024-06-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember 2023-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:FiniteLivedEquityMethodInvestmentBasisDifferenceMember 2025-09-30 0000715957 d:FiniteLivedEquityMethodInvestmentBasisDifferenceMember 2024-12-31 0000715957 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-01-01 2024-09-30 0000715957 us-gaap:SegmentDiscontinuedOperationsMember us-gaap:CommodityContractMember 2024-07-01 2024-09-30 0000715957 us-gaap:FairValueMeasurementsRecurringMember d:CashEquivalentsAndOtherInvestmentMember 2024-12-31 0000715957 us-gaap:DefinedBenefitPostretirementHealthCoverageMember d:VirginiaElectricAndPowerCompanyMember d:AmountsAssociatedWithDominionRetireeHealthAndWelfarePlanMember srt:AffiliatedEntityMember 2024-12-31 0000715957 d:GovernmentDebtFixedIncomeSecuritiesMember d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommodityContractMember 2023-12-31 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:ScenarioPreviouslyReportedMember 2023-12-31 0000715957 us-gaap:ForeignExchangeMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CreditFacilityTwoInSeptemberTwoThousandTwentyFiveMember us-gaap:LetterOfCreditMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FixedIncomeInvestmentsMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RebuildCharlottesvilleDoomsTransmissionLinesInTheCountiesOfAlbemarleAndAugustaAndTheCityOfCharlottesvilleVirginiaMember us-gaap:SubsequentEventMember 2025-10-01 2025-10-31 0000715957 us-gaap:RetainedEarningsMember srt:RestatementAdjustmentMember 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:OtherRegulatedRevenuesMember 2025-01-01 2025-09-30 0000715957 us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:RestatementAdjustmentMember 2024-01-01 2024-09-30 0000715957 d:InterestRateHedgesMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember country:US us-gaap:EquitySecuritiesMember 2024-12-31 0000715957 srt:MaximumMember 2024-01-01 2024-09-30 0000715957 d:LetterOfCreditMaturesInApril2032Member d:VirginiaElectricAndPowerCompanyMember 2025-04-30 0000715957 d:EnbridgeMember d:PsncMember 2023-01-01 2023-12-31 0000715957 d:CorporateDebtFixedIncomeSecuritiesMember 2024-01-01 2024-12-31 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:ElectricityMember us-gaap:IncomeApproachValuationTechniqueMember srt:MaximumMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:OverTheCounterMember us-gaap:ForeignExchangeContractMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember d:DominionEnergyServicesIncMember 2024-01-01 2024-09-30 0000715957 us-gaap:NondesignatedMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember country:US 2025-09-30 0000715957 us-gaap:SeriesBPreferredStockMember 2024-06-01 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:CommercialMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewTechnologyBoulevardTransmissionLinesSubstationAndRelatedProjectsInHenricoCountyVirginiaMember 2025-01-01 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember srt:RestatementAdjustmentMember 2024-09-30 0000715957 d:DerivativeAssetsMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ConstructNewDuvalMidlothianTransmissionLinesSubstationAndRelatedProjectsInChesterfieldCountyVirginiaMember 2025-09-30 0000715957 d:OtherNonregulatedRevenuesMember 2024-01-01 2024-09-30 0000715957 us-gaap:CommonStockMember d:VirginiaElectricAndPowerCompanyMember 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:OtherNonregulatedRevenuesMember 2025-07-01 2025-09-30 0000715957 d:EnbridgeMember d:PsncMember 2024-07-01 2024-09-30 0000715957 d:QuestarGasAndWexproMember d:EnbridgeMember 2024-01-01 2024-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:DerivativeFinancialInstrumentsAssetsMember us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember us-gaap:FairValueMeasurementsRecurringMember srt:MaximumMember d:PriceVolatilityMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:AnnualFuelFactorMember d:VirginiaElectricAndPowerCompanyMember d:VirginiaRegulationMember 2025-03-01 2025-03-31 0000715957 d:VirginiaElectricAndPowerCompanyMember 2023-12-31 0000715957 us-gaap:FairValueInputsLevel2Member d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:SalesMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 srt:MinimumMember d:LessorMember d:NewCorporateOfficeMember d:BuiltToSuitLeaseArrangementWithLessorToConstructAndLeaseCorporateOfficePropertyMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:CcrRemediationAshPondAndLandfillClosureCostMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:DeferredIncomeTaxChargesMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:OtherNonregulatedRevenuesMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:InterestRateContractMember 2025-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2025-07-01 2025-09-30 0000715957 us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommodityContractMember 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember srt:ScenarioPreviouslyReportedMember 2024-06-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember srt:ScenarioPreviouslyReportedMember 2024-06-30 0000715957 d:DominionEnergyVirginiaMember us-gaap:IntersegmentEliminationMember 2025-01-01 2025-09-30 0000715957 d:DominionEnergyVirginiaMember us-gaap:OperatingSegmentsMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:ChesterfieldEnergyReliabilityCenterMember 2025-03-31 0000715957 us-gaap:ElectricityUsRegulatedMember d:CommercialMember 2024-07-01 2024-09-30 0000715957 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember d:VirginiaElectricAndPowerCompanyMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:PartialRebuildReconductorAndConstructNewNewPostTransmissionLinesAndRelatedProjectsInTheCountriesOfCarolineAndSpotsylvaniaVirginiaMember 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:DerivativeLiabilitiesMember 2025-09-30 0000715957 us-gaap:CommonStockMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember d:RiderGenOneMember 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member srt:WeightedAverageMember us-gaap:DerivativeFinancialInstrumentsAssetsMember us-gaap:MarketApproachValuationTechniqueMember srt:NaturalGasReservesMember us-gaap:FairValueMeasurementsRecurringMember d:PriceVolatilityMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:OperatingSegmentsMember d:RiderT1Member d:VirginiaRegulationMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember country:US 2025-01-01 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:ElectricityMember us-gaap:CommodityContractMember 2025-09-30 0000715957 us-gaap:FairValueInputsLevel3Member d:VirginiaElectricAndPowerCompanyMember us-gaap:DerivativeFinancialInstrumentsAssetsMember srt:NaturalGasReservesMember d:MarketPriceMember srt:MinimumMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:LetterOfCreditMember d:DominionEnergySouthCarolinaMember d:CreditFacilityInJanuaryTwoThousandTwentyFiveMember 2025-01-31 0000715957 us-gaap:CommonStockMember 2024-06-30 0000715957 srt:ConsolidationEliminationsMember 2025-07-01 2025-09-30 0000715957 us-gaap:ParentMember d:VirginiaElectricAndPowerCompanyMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember d:DominionEnergyServicesIncMember 2024-07-01 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:CommonStockMember 2025-09-30 0000715957 d:EastOhioPsncAndQuestarGasMember 2024-07-01 2024-09-30 0000715957 d:PurchasedGasMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2024-07-01 2024-09-30 0000715957 us-gaap:ElectricityUsRegulatedMember d:CommercialMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NoncontrollingInterestMember 2025-09-30 0000715957 us-gaap:DeferredIncomeTaxChargesMember d:VirginiaElectricAndPowerCompanyMember 2024-12-31 0000715957 us-gaap:ElectricityUsRegulatedMember d:IndustrialMember 2025-07-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:FairValueMeasurementsRecurringMember 2025-09-30 0000715957 d:GovernmentDebtFixedIncomeSecuritiesMember d:VirginiaElectricAndPowerCompanyMember 2025-01-01 2025-09-30 0000715957 d:QuestarGasAndWexproMember d:EnbridgeMember 2023-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember 2025-09-30 0000715957 us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedIncomeInvestmentsMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0000715957 us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-12-31 0000715957 d:DominionEnergySouthCarolinaMember 2025-04-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:BasisNaturalGasCurrentDerivativeContractMember 2025-01-01 2025-09-30 0000715957 d:LetterOfCreditMaturesInApril2032Member 2025-09-30 0000715957 2024-04-01 2024-04-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:DerivativeAssetsMember 2024-12-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:NoncontrollingInterestMember 2025-01-01 2025-09-30 0000715957 us-gaap:SalesMember us-gaap:NondesignatedMember us-gaap:CommodityContractMember 2024-01-01 2024-09-30 0000715957 us-gaap:CommonStockMember 2023-12-31 0000715957 us-gaap:FairValueInputsLevel3Member srt:WeightedAverageMember us-gaap:DerivativeFinancialInstrumentsAssetsMember srt:NaturalGasReservesMember d:MarketPriceMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:IncomeApproachValuationTechniqueMember us-gaap:CommodityContractMember 2025-01-01 2025-09-30 0000715957 us-gaap:RetainedEarningsMember srt:RestatementAdjustmentMember 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember d:DSMRidersMember 2025-01-01 2025-09-30 0000715957 d:DominionEnergyMember d:SeniorNotesDueInTwoThousandThirtyMember 2025-03-31 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:ElectricityUsRegulatedMember d:IndustrialMember 2025-01-01 2025-09-30 0000715957 2024-09-30 0000715957 d:VirginiaElectricAndPowerCompanyMember us-gaap:RetainedEarningsMember 2024-01-01 2024-09-30 iso4217:EUR d:Project utr:MVA iso4217:USD utr:MWh d:Indicator iso4217:USD utr:MMBTU d:Counterparty d:Site d:Facility iso4217:USD xbrli:shares d:Program utr:T d:Agreement iso4217:USD d:Petition utr:kV xbrli:pure utr:mi utr:MWh utr:gal utr:MW d:Components xbrli:shares iso4217:DKK utr:Bcf

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark one)

☒ | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2025

or

☐ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number |  | Exact name of registrants as specified in their charters, address of principal executive offices and registrants’ telephone number |  | I.R.S. Employer Identification Number
001-08489 |  | DOMINION ENERGY, INC. |  | 54-1229715
000-55337 |  | VIRGINIA ELECTRIC AND POWER COMPANY |  | 54-0418825
|  | 600 East Canal Street Richmond, Virginia 23219 (804) 819-2284 |  |

State or other jurisdiction of incorporation or organization of the registrants: Virginia

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

Registrant | Trading Symbol | Title of Each Class | Name of Each Exchange on Which Registered
DOMINION ENERGY, INC. | D | Common Stock, no par value | New York Stock Exchange

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.

Dominion Energy, Inc. Yes ☒ No ☐ Virginia Electric and Power Company 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).

Dominion Energy, Inc. Yes ☒ No ☐ Virginia Electric and Power Company 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,” “non-accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Dominion Energy, Inc.

Large accelerated filer | ☒ |  | Accelerated filer | ☐ | Emerging growth company | ☐
Non-accelerated filer | ☐ |  | Smaller reporting company | ☐ |  |

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. ☐

Virginia Electric and Power Company

Large accelerated filer | ☐ |  | Accelerated filer | ☐ | Emerging growth company | ☐
Non-accelerated filer | ☒ |  | Smaller reporting company | ☐ |  |

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 Exchange Act).

Dominion Energy, Inc. Yes ☐ No ☒ Virginia Electric and Power Company Yes ☐ No ☒

At October 24, 2025, the latest practicable date for determination, Dominion Energy, Inc. had 853,913,277 shares of common stock outstanding and Virginia Electric and Power Company had 373,881 shares of common stock outstanding. Dominion Energy, Inc. is the sole holder of Virginia Electric and Power Company’s common stock.

This combined Form 10-Q represents separate filings by Dominion Energy, Inc. and Virginia Electric and Power Company. Information contained herein relating to an individual registrant is filed by that registrant on its own behalf. Virginia Electric and Power Company makes no representation as to the information relating to Dominion Energy, Inc.’s other operations.

VIRGINIA ELECTRIC AND POWER COMPANY MEETS THE CONDITIONS SET FORTH IN GENERAL INSTRUCTION H(1)(a) AND (b) OF FORM 10-Q AND IS FILING THIS FORM 10-Q UNDER THE REDUCED DISCLOSURE FORMAT.

1

COMBINED INDEX

|  | Page Number
| Glossary of Terms | 3
| PART I. Financial Information |
Item 1. | Financial Statements | 7
Item 2. | Management’s Discussion and Analysis of Financial Condition and Results of Operations | 65
Item 3. | Quantitative and Qualitative Disclosures About Market Risk | 80
Item 4. | Controls and Procedures | 81
| PART II. Other Information |
Item 1. | Legal Proceedings | 82
Item 1A. | Risk Factors | 82
Item 2. | Unregistered Sales of Equity Securities and Use of Proceeds | 82
Item 5. | Other Information | 82
Item 6. | Exhibits | 83

2

GL OSSARY OF TERMS

The following abbreviations or acronyms used in this Form 10-Q are defined below:

Abbreviation or Acronym |  | Definition
2017 Tax Reform Act |  | An Act to Provide for Reconciliation Pursuant to Titles II and V of the Concurrent Resolution on the Budget for Fiscal Year 2018 (previously known as The Tax Cuts and Jobs Act) enacted on December 22, 2017
2023 Biennial Review |  | Virginia Commission review of Virginia Power’s earned return on base rate generation and distribution services for the two successive 12-month test periods beginning January 1, 2021 and ending December 31, 2022 and prospective rate base setting for the succeeding annual periods beginning January 1, 2024 and ending December 31, 2025
2025 Biennial Review |  | Virginia Commission review of Virginia Power’s earned return on base rate generation and distribution services for the two successive 12-month test periods beginning January 1, 2023 and ending December 31, 2024 and prospective rate base setting for the succeeding annual periods beginning January 1, 2026 and ending December 31, 2027
2027 Biennial Review |  | Future Virginia Commission review of Virginia Power’s earned return on base rate generation and distribution services for the two successive 12-month test periods beginning January 1, 2025 and ending December 31, 2026 and prospective rate base setting for the succeeding annual periods beginning January 1, 2028 and ending December 31, 2029
2025 Series A JSNs |  | Dominion Energy’s 2025 Series A Junior Subordinated Notes due 2056
2025 Series B JSNs |  | Dominion Energy’s 2025 Series B Junior Subordinated Notes due 2056
AFUDC |  | Allowance for funds used during construction
AOCI |  | Accumulated other comprehensive income (loss)
ARO |  | Asset retirement obligation
Atlantic Coast Pipeline |  | Atlantic Coast Pipeline, LLC, a limited liability company owned by Dominion Energy and Duke Energy
Atlantic Coast Pipeline Project |  | A previously proposed approximately 600-mile natural gas pipeline running from West Virginia through Virginia to North Carolina which would have been owned by Dominion Energy and Duke Energy
bcf |  | Billion cubic feet
Bedford |  | A 70 MW solar generation facility in Chesapeake, Virginia
Birdseye |  | Birdseye Renewable Energy, LLC
BOEM |  | Bureau of Ocean Energy Management
Brunswick County |  | A 1,376 MW combined-cycle, natural gas-fired power station in Brunswick County, Virginia
CAA |  | Clean Air Act
CCR |  | Coal combustion residual
CEO |  | Chief Executive Officer
CERCLA |  | Comprehensive Environmental Response, Compensation and Liability Act of 1980, also known as Superfund
CFO |  | Chief Financial Officer
Chesterfield Energy Reliability Center |  | A proposed 944 MW simple-cycle, natural gas-fired power station in Chesterfield County, Virginia
CO 2 |  | Carbon dioxide
CODM |  | Chief Operating Decision Maker
Companies |  | Dominion Energy and Virginia Power, collectively
Contracted Energy |  | Contracted Energy operating segment
Cooling degree days |  | Units measuring the extent to which the average daily temperature is greater than 65 degrees Fahrenheit, or 75 degrees Fahrenheit in DESC’s service territory, calculated as the difference between 65 or 75 degrees, as applicable, and the average temperature for that day
Cove Point |  | Cove Point LNG, LP (formerly known as Dominion Energy Cove Point LNG, LP)
CPCN |  | Certificate of Public Convenience and Necessity
CVOW Commercial Project |  | A proposed 2.6 GW wind generation facility 27 miles off the coast of Virginia Beach, Virginia in federal waters adjacent to the CVOW Pilot Project and associated interconnection facilities in and around Virginia Beach, Virginia
CVOW Pilot Project |  | A 12 MW wind generation facility 27 miles off the coast of Virginia Beach, Virginia in federal waters
CWA |  | Clean Water Act
DES |  | Dominion Energy Services, Inc.

3

DESC |  | The legal entity, Dominion Energy South Carolina, Inc., one or more of its consolidated entities or operating segment, or the entirety of Dominion Energy South Carolina, Inc. and its consolidated entities
DGI |  | Dominion Generation, Inc.
Dominion Energy |  | The legal entity, Dominion Energy, Inc., one or more of its consolidated subsidiaries (other than Virginia Power) or operating segments, or the entirety of Dominion Energy, Inc. and its consolidated subsidiaries
Dominion Energy Direct® |  | A dividend reinvestment and open enrollment direct stock purchase plan
Dominion Energy South Carolina |  | Dominion Energy South Carolina operating segment
Dominion Energy Virginia |  | Dominion Energy Virginia operating segment
Dominion Privatization |  | Dominion Utility Privatization, LLC, a joint venture between Dominion Energy and Patriot
DSM |  | Demand-side management
DSM Riders |  | Rate adjustment clauses, designated Riders C1A, C2A, C3A and C4A, associated with the recovery of costs related to certain Virginia DSM programs in approved DSM cases
Dth |  | Dekatherm
Duke Energy |  | The legal entity, Duke Energy Corporation, one or more of its consolidated subsidiaries, or the entirety of Duke Energy Corporation and its consolidated subsidiaries
Eagle Solar |  | Eagle Solar, LLC, a wholly-owned subsidiary of DGI
East Ohio |  | The East Ohio Gas Company (a subsidiary of Enbridge effective March 2024)
East Ohio Transaction |  | The sale by Dominion Energy to Enbridge of all issued and outstanding capital stock in Dominion Energy Questar Corporation and its consolidated subsidiaries, which following a reorganization included East Ohio and Dominion Energy Gas Distribution, LLC, pursuant to a purchase and sale agreement entered into on September 5, 2023, which was completed on March 6, 2024
Enbridge |  | The legal entity, Enbridge Inc., one or more of its consolidated subsidiaries (including Enbridge Elephant Holdings, LLC, Enbridge Parrot Holdings, LLC and Enbridge Quail Holdings, LLC), or the entirety of Enbridge Inc. and its consolidated subsidiaries
EPA |  | U.S. Environmental Protection Agency
EPS |  | Earnings per common share
FERC |  | Federal Energy Regulatory Commission
FTRs |  | Financial transmission rights
GAAP |  | U.S. generally accepted accounting principles
GENCO |  | South Carolina Generating Company, Inc.
GHG |  | Greenhouse gas
Greensville County |  | A 1,605 MW combined-cycle, natural gas-fired power station in Greensville County, Virginia
GTSA |  | Virginia Grid Transformation and Security Act of 2018
GW |  | Gigawatt
Heating degree days |  | Units measuring the extent to which the average daily temperature is less than 65 degrees Fahrenheit, or 60 degrees Fahrenheit in DESC’s service territory, calculated as the difference between 65 or 60 degrees, as applicable, and the average temperature for that day
IRA |  | An Act to Provide for Reconciliation Pursuant to Title II of Senate Concurrent Resolution 14 of the 117th Congress (also known as the Inflation Reduction Act of 2022) enacted on August 16, 2022
ISO |  | Independent system operator
Jones Act |  | The Coastwise Merchandise Statute (commonly known as the Jones Act) 46 U.S.C. §55102 regulating U.S. maritime commerce
kV |  | Kilovolt
LNG |  | Liquefied natural gas
MD&A |  | Management’s Discussion and Analysis of Financial Condition and Results of Operations
MGD |  | Million gallons per day
Millstone |  | Millstone nuclear power station
Moody’s |  | Moody’s Investors Service
MW |  | Megawatt
MWh |  | Megawatt hour
Natural Gas Rate Stabilization Act |  | Legislation effective February 2005 designed to improve and maintain natural gas service infrastructure to meet the needs of customers in South Carolina
NAV |  | Net asset value

4

NND Project |  | V.C. Summer Units 2 and 3 nuclear development project under which DESC and Santee Cooper undertook to construct two Westinghouse AP1000 Advanced Passive Safety nuclear units in Jenkinsville, South Carolina
North Anna |  | North Anna nuclear power station
North Carolina Commission |  | North Carolina Utilities Commission
NO X |  | Nitrogen oxide
NRC |  | U.S. Nuclear Regulatory Commission
Order 1000 |  | Order issued by FERC adopting requirements for electric transmission planning, cost allocation and development
OSWP |  | OSW Project LLC, a limited liability company owned by Virginia Power and Stonepeak
ozone season |  | The period May 1 st through September 30 th, as determined on a federal level
Patriot |  | Patriot Utility Privatizations, LLC, a joint venture between Foundation Infrastructure Partners, LLC and John Hancock Life Insurance Company (U.S.A.) and affiliates
PJM |  | PJM Interconnection, LLC
PSD |  | Prevention of significant deterioration
PSNC |  | Public Service Company of North Carolina, Incorporated (a subsidiary of Enbridge effective September 2024)
PSNC Transaction |  | The sale by Dominion Energy to Enbridge of all of its membership interests in Fall North Carolina Holdco LLC and its consolidated subsidiaries, which following a reorganization included PSNC, pursuant to a purchase and sale agreement entered into on September 5, 2023, which was completed on September 30, 2024
Pumpkinseed |  | A 60 MW solar generation facility in Emporia, Virginia
Questar Gas |  | Questar Gas Company (a subsidiary of Enbridge effective May 2024)
Questar Gas Transaction |  | The sale by Dominion Energy to Enbridge of all of its membership interests in Fall West Holdco LLC and its consolidated subsidiaries, which following a reorganization included Questar Gas, Wexpro, Wexpro II Company, Wexpro Development Company, Dominion Energy Wexpro Services Company, Questar InfoComm Inc. and Dominion Gas Projects Company, LLC, pursuant to a purchase and sale agreement entered into on September 5, 2023, which was completed on May 31, 2024
RGGI |  | Regional Greenhouse Gas Initiative
Rider BW |  | A rate adjustment clause associated with the recovery of costs related to Brunswick County
Rider CCR |  | A rate adjustment clause associated with the recovery of costs related to the removal of CCR at certain power stations
Rider CE |  | A rate adjustment clause associated with the recovery of costs related to certain renewable generation, energy storage and related transmission facilities in Virginia, certain small-scale distributed generation projects and related transmission facilities and, beginning May 2024, power purchase agreements for the energy, capacity, ancillary services and renewable energy credits owned by third parties
Rider DIST |  | A rate adjustment clause associated with the recovery of costs previously being recovered under Riders GT and U
Rider E |  | A rate adjustment clause associated with the recovery of costs related to certain capital projects at Virginia Power’s electric generating stations to comply with federal and state environmental laws and regulations
Rider GEN |  | A rate adjustment clause associated with recovery of costs previously being recovered under Riders BW, GV, four other riders associated with generation facilities and the Virginia LNG Storage Facility
Rider GT |  | A rate adjustment clause associated with the recovery of costs associated with electric distribution grid transformation projects that the Virginia Commission has approved as authorized by the GTSA
Rider GV |  | A rate adjustment clause associated with the recovery of costs related to Greensville County
Rider OSW |  | A rate adjustment clause associated with costs incurred to construct, own and operate the CVOW Commercial Project
Rider RPS |  | A rate adjustment clause associated with the recovery of costs related to the mandatory renewable portfolio standard program established by the VCEA
Rider SNA |  | A rate adjustment clause associated with costs relating to the preparation of the applications for subsequent license renewal to the NRC to extend the operating licenses of Surry and North Anna and related projects

5

Rider T1 |  | A rate adjustment clause to recover the difference between revenues produced from transmission rates included in base rates, and the new total revenue requirement developed annually for the rate years effective September 1
Rider U |  | A rate adjustment clause associated with the recovery of costs of new underground distribution facilities
ROE |  | Return on equity
RTO |  | Regional transmission organization
Santee Cooper |  | South Carolina Public Service Authority
SCANA |  | The legal entity, SCANA Corporation, one or more of its consolidated subsidiaries, or the entirety of SCANA Corporation and its consolidated subsidiaries
SCANA Combination |  | Dominion Energy’s acquisition of SCANA completed on January 1, 2019 pursuant to the terms of the agreement and plan of merger entered on January 2, 2018 between Dominion Energy and SCANA
SCANA Merger Approval Order |  | Final order issued by the South Carolina Commission on December 21, 2018 setting forth its approval of the SCANA Combination
SEC |  | U.S. Securities and Exchange Commission
Section 232 |  | Section 232 of the Trade Expansion Act of 1962
Series B Preferred Stock |  | Dominion Energy’s 4.65% Series B Fixed-Rate Cumulative Redeemable Perpetual Preferred Stock, without par value, with a liquidation preference of $1,000 per share
Series C Preferred Stock |  | Dominion Energy’s 4.35% Series C Fixed-Rate Cumulative Redeemable Perpetual Preferred Stock, without par value, with a liquidation preference of $1,000 per share
South Carolina Commission |  | Public Service Commission of South Carolina
Standard & Poor’s |  | Standard & Poor’s Ratings Services, a division of S&P Global Inc.
Stonepeak |  | The legal entity Stonepeak Partners, LLC, one or more of its affiliated investment vehicles (including Dunedin Member LLC) or the entirety of Stonepeak Partners, LLC and its affiliated investment vehicles
Summer |  | V.C. Summer nuclear power station
Surry |  | Surry nuclear power station
VCEA |  | Virginia Clean Economy Act of March 2020
VEBA |  | Voluntary Employees’ Beneficiary Association
VIE |  | Variable interest entity
Virginia Commission |  | Virginia State Corporation Commission
Virginia LNG Storage Facility |  | A proposed LNG storage facility in Brunswick and Greensville Counties, Virginia
Virginia Power |  | The legal entity, Virginia Electric and Power Company, one or more of its consolidated subsidiaries or operating segment, or the entirety of Virginia Electric and Power Company and its consolidated subsidiaries
VPFS |  | Virginia Power Fuel Securitization, LLC
Wexpro |  | The legal entity, Wexpro Company, one or more of its consolidated subsidiaries, or the entirety of Wexpro Company and its consolidated subsidiaries (a subsidiary of Enbridge effective May 2024)

6

PA RT I. FINANCIAL INFORMATION

ITE M 1. FINANCIAL STATEMENTS

DOMINION ENERGY, INC.

CONSOLIDATED STATEMENTS OF INCOME

(Unaudited)

| Three Months Ended September 30, |  | Nine Months Ended September 30, |
| 2025 |  | 2024 |  | 2025 |  | 2024 |
(millions, except per share amounts) |  |  |  |  |  |  |  |
Operating Revenue | $ | 4,527 |  | $ | 3,941 |  | $ | 12,413 |  | $ | 11,059 |
Operating Expenses |  |  |  |  |  |  |  |
Electric fuel and other energy-related purchases |  | 1,337 |  |  | 910 |  |  | 3,245 |  |  | 2,787 |
Purchased electric capacity |  | 36 |  |  | 24 |  |  | 63 |  |  | 57 |
Purchased gas |  | 31 |  |  | 34 |  |  | 221 |  |  | 198 |
Other operations and maintenance |  | 850 |  |  | 900 |  |  | 2,631 |  |  | 2,595 |
Depreciation and amortization |  | 609 |  |  | 549 |  |  | 1,771 |  |  | 1,791 |
Other taxes |  | 195 |  |  | 184 |  |  | 598 |  |  | 556 |
Impairment of assets and other charges |  | 130 |  |  | 122 |  |  | 226 |  |  | 219 |
Total operating expenses |  | 3,188 |  |  | 2,723 |  |  | 8,755 |  |  | 8,203 |
Income from operations |  | 1,339 |  |  | 1,218 |  |  | 3,658 |  |  | 2,856 |
Other income (expense) |  | 432 |  |  | 348 |  |  | 884 |  |  | 714 |
Interest and related charges |  | 527 |  |  | 404 |  |  | 1,513 |  |  | 1,449 |
Income from continuing operations including noncontrolling interests before income tax expense |  | 1,244 |  |  | 1,162 |  |  | 3,029 |  |  | 2,121 |
Income tax expense |  | 216 |  |  | 213 |  |  | 476 |  |  | 421 |
Net Income From Continuing Operations Including Noncontrolling Interests |  | 1,028 |  |  | 949 |  |  | 2,553 |  |  | 1,700 |
Net Income (Loss) From Discontinued Operations Including Noncontrolling Interests(1) |  | — |  |  | (15 | ) |  | — |  |  | 200 |
Net Income Including Noncontrolling Interests |  | 1,028 |  |  | 934 |  |  | 2,553 |  |  | 1,900 |
Noncontrolling Interests |  | 22 |  |  | — |  |  | 122 |  |  | — |
Net Income Attributable to Dominion Energy | $ | 1,006 |  | $ | 934 |  | $ | 2,431 |  | $ | 1,900 |
Amounts Attributable to Dominion Energy |  |  |  |  |  |  |  |
Net income from continuing operations | $ | 1,006 |  | $ | 949 |  | $ | 2,431 |  | $ | 1,700 |
Net income (loss) from discontinued operations |  | — |  |  | (15 | ) |  | — |  |  | 200 |
Net income attributable to Dominion Energy | $ | 1,006 |  | $ | 934 |  | $ | 2,431 |  | $ | 1,900 |
EPS - Basic |  |  |  |  |  |  |  |
Net income from continuing operations | $ | 1.17 |  | $ | 1.11 |  | $ | 2.81 |  | $ | 1.95 |
Net income (loss) from discontinued operations |  | — |  |  | (0.02 | ) |  | — |  |  | 0.24 |
Net income attributable to Dominion Energy | $ | 1.17 |  | $ | 1.09 |  | $ | 2.81 |  | $ | 2.19 |
EPS - Diluted |  |  |  |  |  |  |  |
Net income from continuing operations | $ | 1.16 |  | $ | 1.11 |  | $ | 2.81 |  | $ | 1.95 |
Net income (loss) from discontinued operations |  | — |  |  | (0.02 | ) |  | — |  |  | 0.24 |
Net income attributable to Dominion Energy | $ | 1.16 |  | $ | 1.09 |  | $ | 2.81 |  | $ | 2.19 |

(1)
Includes income tax expense (benefit) of $(2) million and $(9) million for the three months ended September 30, 2025 and 2024, respectively, and $(5) million and $31 million for the nine months ended September 30, 2025 and 2024, respectively.

The accompanying notes are an integral part of Dominion Energy’s Consolidated Financial Statements.

7

DOMINION ENERGY, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

| Three Months Ended September 30, |  | Nine Months Ended September 30, |
| 2025 |  | 2024 |  | 2025 |  | 2024 |
(millions) |  |  |  |  |  |  |  |
Net income including noncontrolling interests | $ | 1,028 |  | $ | 934 |  | $ | 2,553 |  | $ | 1,900 |
Other comprehensive income (loss), net of taxes: |  |  |  |  |  |  |  |
Net deferred gains (losses) on derivatives-hedging activities(1) |  | (3 | ) |  | (7 | ) |  | (19 | ) |  | 2 |
Changes in unrealized net gains (losses) on investment securities(2) |  | 6 |  |  | 27 |  |  | 15 |  |  | 10 |
Changes in net unrecognized pension and other postretirement benefit costs (credits)(3) |  | — |  |  | — |  |  | — |  |  | — |
Amounts reclassified to net income (loss): |  |  |  |  |  |  |  |
Net derivative (gains) losses-hedging activities(4) |  | 7 |  |  | 8 |  |  | 22 |  |  | 24 |
Net realized (gains) losses on investment securities(5) |  | (1 | ) |  | (1 | ) |  | 3 |  |  | 5 |
Net pension and other postretirement benefit costs (credits)(6) |  | (3 | ) |  | (3 | ) |  | (8 | ) |  | (9 | )
Total other comprehensive income (loss) |  | 6 |  |  | 24 |  |  | 13 |  |  | 32 |
Comprehensive income including noncontrolling interests |  | 1,034 |  |  | 958 |  |  | 2,566 |  |  | 1,932 |
Comprehensive income (loss) attributable to noncontrolling interests |  | 22 |  |  | — |  |  | 122 |  |  | — |
Comprehensive income attributable to Dominion Energy | $ | 1,012 |  | $ | 958 |  | $ | 2,444 |  | $ | 1,932 |

(1) Net of $2 million and $3 million tax for the three months ended September 30, 2025 and 2024, respectively, and net of $7 million and $— million tax for the nine months ended September 30, 2025 and 2024, respectively.

(2) Net of $(5) million and $(15) million tax for the three months ended September 30, 2025 and 2024, respectively, and net of $(13) million and $(5) million tax for the nine months ended September 30, 2025 and 2024, respectively.

(3) Net of $— million and $— million tax for the three months ended September 30, 2025 and 2024, respectively, and net of $— million and $— million tax for the nine months ended September 30, 2025 and 2024, respectively.

(4) Net of $(3) million and $(3) million tax for the three months ended September 30, 2025 and 2024, respectively, and net of $(8) million and $(9) million tax for the nine months ended September 30, 2025 and 2024, respectively.

(5) Net of $— million and $1 million tax for the three months ended September 30, 2025 and 2024, respectively, and net of $(1) million and $(1) million tax for the nine months ended September 30, 2025 and 2024, respectively.

(6) Net of $— million and $1 million tax for the three months ended September 30, 2025 and 2024, respectively, and net of $1 million and $4 million tax for the nine months ended September 30, 2025 and 2024, respectively.

The accompanying notes are an integral part of Dominion Energy’s Consolidated Financial Statements.

8

DOMINION ENERGY, INC.

CONSOLIDATED BALANCE SHEETS

(Unaudited)

|  | September 30, 2025 |  |  | December 31, 2024(1) |
(millions) |  |  |  |  |  |
ASSETS |  |  |  |  |  |
Current Assets |  |  |  |  |  |
Cash and cash equivalents(2) |  | $ | 932 |  |  | $ | 310 |
Customer receivables (less allowance for doubtful accounts of $30 at both dates)(2) |  |  | 2,285 |  |  |  | 2,169 |
Other receivables (less allowance for doubtful accounts of $3 and $2) |  |  | 253 |  |  |  | 358 |
Inventories |  |  | 1,894 |  |  |  | 1,764 |
Regulatory assets(2) |  |  | 1,430 |  |  |  | 992 |
Derivative assets |  |  | 286 |  |  |  | 436 |
Prepayments(2) |  |  | 802 |  |  |  | 315 |
Other(2) |  |  | 340 |  |  |  | 269 |
Total current assets |  |  | 8,222 |  |  |  | 6,613 |
Investments |  |  |  |  |  |
Nuclear decommissioning trust funds |  |  | 8,945 |  |  |  | 8,051 |
Investment in equity method affiliates |  |  | 138 |  |  |  | 138 |
Other |  |  | 373 |  |  |  | 361 |
Total investments |  |  | 9,456 |  |  |  | 8,550 |
Property, Plant and Equipment |  |  |  |  |  |
Property, plant and equipment(2) |  |  | 103,076 |  |  |  | 94,844 |
Accumulated depreciation and amortization |  |  | (27,266 | ) |  |  | (25,982 | )
Total property, plant and equipment, net |  |  | 75,810 |  |  |  | 68,862 |
Deferred Charges and Other Assets |  |  |  |  |  |
Goodwill |  |  | 4,143 |  |  |  | 4,143 |
Regulatory assets(2) |  |  | 8,012 |  |  |  | 8,288 |
Derivative assets |  |  | 464 |  |  |  | 963 |
Intangible assets, net |  |  | 1,455 |  |  |  | 1,136 |
Other(2) |  |  | 4,035 |  |  |  | 3,860 |
Total deferred charges and other assets |  |  | 18,109 |  |  |  | 18,390 |
Total assets |  | $ | 111,597 |  |  | $ | 102,415 |

(1) Dominion Energy’s Consolidated Balance Sheet at December 31, 2024 has been derived from the audited Consolidated Balance Sheet at that date.

(2) See Note 15 for amounts attributable to VIEs.

The accompanying notes are an integral part of Dominion Energy’s Consolidated Financial Statements.

9

DOMINION ENERGY, INC.

CONSOLIDATED BALANCE SHEETS—(Continued)

(Unaudited)

|  | September 30, 2025 |  |  | December 31, 2024(1) |
(millions) |  |  |  |  |  |
LIABILITIES AND EQUITY |  |  |  |  |  |
Current Liabilities |  |  |  |  |  |
Securities due within one year(2) |  | $ | 2,736 |  |  | $ | 1,725 |
Short-term debt |  |  | 2,522 |  |  |  | 2,500 |
Accounts payable(2) |  |  | 1,007 |  |  |  | 1,149 |
Accrued interest, payroll and taxes(2) |  |  | 1,209 |  |  |  | 1,045 |
Derivative liabilities |  |  | 69 |  |  |  | 207 |
Regulatory liabilities |  |  | 533 |  |  |  | 579 |
Supplemental credit facility borrowings |  |  | — |  |  |  | — |
Other(2)(3) |  |  | 1,655 |  |  |  | 2,084 |
Total current liabilities |  |  | 9,731 |  |  |  | 9,289 |
Long-Term Debt |  |  |  |  |  |
Long-term debt |  |  | 37,179 |  |  |  | 33,034 |
Securitization bonds(2) |  |  | 969 |  |  |  | 1,054 |
Junior subordinated notes |  |  | 4,731 |  |  |  | 3,223 |
Supplemental credit facility borrowings |  |  | — |  |  |  | — |
Other |  |  | 412 |  |  |  | 214 |
Total long-term debt |  |  | 43,291 |  |  |  | 37,525 |
Deferred Credits and Other Liabilities |  |  |  |  |  |
Deferred income taxes |  |  | 7,744 |  |  |  | 7,135 |
Deferred investment tax credits |  |  | 1,380 |  |  |  | 1,070 |
Regulatory liabilities |  |  | 8,768 |  |  |  | 8,761 |
Derivative liabilities |  |  | 198 |  |  |  | 305 |
Other(2) |  |  | 8,759 |  |  |  | 8,528 |
Total deferred credits and other liabilities |  |  | 26,849 |  |  |  | 25,799 |
Total liabilities |  |  | 79,871 |  |  |  | 72,613 |
Commitments and Contingencies (see Note 17) |  |  |  |  |  |
Equity |  |  |  |  |  |
Preferred stock (see Note 16) |  |  | 991 |  |  |  | 991 |
Common stock – no par(4) |  |  | 24,506 |  |  |  | 24,383 |
Retained earnings |  |  | 2,333 |  |  |  | 1,641 |
Accumulated other comprehensive loss |  |  | (139 | ) |  |  | (152 | )
Shareholders’ equity |  |  | 27,691 |  |  |  | 26,863 |
Noncontrolling interests |  |  | 4,035 |  |  |  | 2,939 |
Total equity |  |  | 31,726 |  |  |  | 29,802 |
Total liabilities and equity |  | $ | 111,597 |  |  | $ | 102,415 |

(1) Dominion Energy’s Consolidated Balance Sheet at December 31, 2024 has been derived from the audited Consolidated Balance Sheet at that date.

(2) See Note 15 for amounts attributable to VIEs.

(3) See Note 10 for amounts attributable to related parties.

(4) 1.8 billion shares authorized; 854 million and 852 million shares outstanding at September 30, 2025 and December 31, 2024, respectively.

The accompanying notes are an integral part of Dominion Energy’s Consolidated Financial Statements.

10

DOMINION ENERGY, INC.

CONSOLIDATED STATEMENTS OF EQUITY

(Unaudited)

QUARTER-TO-DATE

| Preferred Stock |  | Common Stock |  |  |  |  |  |  |  |  |
| Shares |  | Amount |  | Shares |  | Amount |  | Retained Earnings |  | AOCI |  | Shareholders’ Equity |  | Noncontrolling Interests |  | Total Equity |
(millions, except per share amounts) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
June 30, 2024 |  | 1 |  | $ | 1,348 |  |  | 839 |  | $ | 23,809 |  | $ | 1,724 |  | $ | (164 | ) | $ | 26,717 |  | $ | — |  | $ | 26,717 |
Net income including noncontrolling interests |  |  |  |  |  |  |  |  |  | 934 |  |  |  |  | 934 |  |  | — |  |  | 934 |
Issuance of stock |  |  |  |  |  | 1 |  |  | 35 |  |  |  |  |  |  | 35 |  |  |  |  | 35 |
Stock awards (net of change in unearned compensation) |  |  |  |  |  | — |  |  | 9 |  |  |  |  |  |  | 9 |  |  |  |  | 9 |
Preferred stock dividends (see Note 16) |  |  |  |  |  |  |  |  |  | (15 | ) |  |  |  | (15 | ) |  |  |  | (15 | )
Common stock dividends ($0.6675 per common share) and distributions |  |  |  |  |  |  |  |  |  | (559 | ) |  |  |  | (559 | ) |  | — |  |  | (559 | )
Other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  |  |  | 24 |  |  | 24 |  |  |  |  | 24 |
Other |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  | 1 |  |  |  |  | 1 |
September 30, 2024 |  | 1 |  | $ | 1,348 |  |  | 840 |  | $ | 23,854 |  | $ | 2,084 |  | $ | (140 | ) | $ | 27,146 |  | $ | — |  | $ | 27,146 |
June 30, 2025 |  | 1 |  | $ | 991 |  |  | 853 |  | $ | 24,463 |  | $ | 1,906 |  | $ | (145 | ) | $ | 27,215 |  | $ | 3,657 |  | $ | 30,872 |
Net income including noncontrolling interests |  |  |  |  |  |  |  |  |  | 1,006 |  |  |  |  | 1,006 |  |  | 22 |  |  | 1,028 |
Issuance of stock |  |  |  |  |  | 1 |  |  | 35 |  |  |  |  |  |  | 35 |  |  |  |  | 35 |
Stock awards (net of change in unearned compensation) |  |  |  |  |  | — |  |  | 9 |  |  |  |  |  |  | 9 |  |  |  |  | 9 |
Contributions from Stonepeak to OSWP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 417 |  |  | 417 |
Distributions from OSWP to Stonepeak |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (61 | ) |  | (61 | )
Preferred stock dividends (see Note 16) |  |  |  |  |  |  |  |  |  | (11 | ) |  |  |  | (11 | ) |  |  |  | (11 | )
Common stock dividends ($0.6675 per common share) and distributions |  |  |  |  |  |  |  |  |  | (570 | ) |  |  |  | (570 | ) |  | — |  |  | (570 | )
Other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  |  |  | 6 |  |  | 6 |  |  |  |  | 6 |
Other |  |  |  |  |  |  |  | (1 | ) |  | 2 |  |  |  |  | 1 |  |  | — |  |  | 1 |
September 30, 2025 |  | 1 |  | $ | 991 |  |  | 854 |  | $ | 24,506 |  | $ | 2,333 |  | $ | (139 | ) | $ | 27,691 |  | $ | 4,035 |  | $ | 31,726 |

The accompanying notes are an integral part of Dominion Energy’s Consolidated Financial Statements.

11

DOMINION ENERGY, INC.

CONSOLIDATED STATEMENTS OF EQUITY

(Unaudited)

YEAR-TO-DATE

| Preferred Stock |  | Common Stock |  |  |  |  |  |  |  |  |
| Shares |  | Amount |  | Shares |  | Amount |  | Retained Earnings |  | AOCI |  | Shareholders’ Equity |  | Noncontrolling Interests |  | Total Equity |
(millions, except per share amounts) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
December 31, 2023 |  | 2 |  | $ | 1,783 |  |  | 838 |  | $ | 23,728 |  | $ | 1,925 |  | $ | (172 | ) | $ | 27,264 |  | $ | — |  | $ | 27,264 |
Net income including noncontrolling interests |  |  |  |  |  |  |  |  |  | 1,900 |  |  |  |  | 1,900 |  |  | — |  |  | 1,900 |
Issuance of stock |  |  |  |  |  | 2 |  |  | 102 |  |  |  |  |  |  | 102 |  |  |  |  | 102 |
Stock awards (net of change in unearned compensation) |  |  |  |  |  | — |  |  | 24 |  |  |  |  |  |  | 24 |  |  |  |  | 24 |
Repurchase of preferred stock |  | (1 | ) |  | (435 | ) |  |  |  |  |  |  |  |  |  | (435 | ) |  |  |  | (435 | )
Preferred stock dividends (see Note 16) |  |  |  |  |  |  |  |  |  | (63 | ) |  |  |  | (63 | ) |  |  |  | (63 | )
Common stock dividends ($2.0025 per common share) and distributions |  |  |  |  |  |  |  |  |  | (1,678 | ) |  |  |  | (1,678 | ) |  | — |  |  | (1,678 | )
Other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  |  |  | 32 |  |  | 32 |  |  |  |  | 32 |
September 30, 2024 |  | 1 |  | $ | 1,348 |  |  | 840 |  | $ | 23,854 |  | $ | 2,084 |  | $ | (140 | ) | $ | 27,146 |  | $ | — |  | $ | 27,146 |
December 31, 2024 |  | 1 |  | $ | 991 |  |  | 852 |  | $ | 24,383 |  | $ | 1,641 |  | $ | (152 | ) | $ | 26,863 |  | $ | 2,939 |  | $ | 29,802 |
Net income including noncontrolling interests |  |  |  |  |  |  |  |  |  | 2,431 |  |  |  |  | 2,431 |  |  | 122 |  |  | 2,553 |
Issuance of stock |  |  |  |  |  | 2 |  |  | 105 |  |  |  |  |  |  | 105 |  |  |  |  | 105 |
Stock awards (net of change in unearned compensation) |  |  |  |  |  | — |  |  | 25 |  |  |  |  |  |  | 25 |  |  |  |  | 25 |
Sale of noncontrolling interest in OSWP |  |  |  |  |  |  |  | (7 | ) |  |  |  |  |  | (7 | ) |  |  |  | (7 | )
Contributions from Stonepeak to OSWP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,141 |  |  | 1,141 |
Distributions from OSWP to Stonepeak |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (167 | ) |  | (167 | )
Preferred stock dividends (see Note 16) |  |  |  |  |  |  |  |  |  | (33 | ) |  |  |  | (33 | ) |  |  |  | (33 | )
Common stock dividends ($2.0025 per common share) and distributions |  |  |  |  |  |  |  |  |  | (1,708 | ) |  |  |  | (1,708 | ) |  | — |  |  | (1,708 | )
Other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  |  |  | 13 |  |  | 13 |  |  |  |  | 13 |
Other |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  | 2 |  |  | — |  |  | 2 |
September 30, 2025 |  | 1 |  | $ | 991 |  |  | 854 |  | $ | 24,506 |  | $ | 2,333 |  | $ | (139 | ) | $ | 27,691 |  | $ | 4,035 |  | $ | 31,726 |

The accompanying notes are an integral part of Dominion Energy’s Consolidated Financial Statements.

12

DOMINION ENERGY, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

Nine Months Ended September 30, |  | 2025 |  |  | 2024 |
(millions) |  |  |  |  |  |
Operating Activities |  |  |  |  |  |
Net income including noncontrolling interests |  | $ | 2,553 |  |  | $ | 1,900 |
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operating activities: |  |  |  |  |  |
Depreciation, depletion and amortization (including nuclear fuel) |  |  | 2,002 |  |  |  | 2,014 |
Deferred income taxes |  |  | 455 |  |  |  | (281 | )
Deferred investment tax benefits |  |  | 281 |  |  |  | (23 | )
Impairment of assets and other charges |  |  | 225 |  |  |  | 251 |
Losses from East Ohio, Questar Gas and PSNC Transactions |  |  | — |  |  |  | 138 |
Net (gains) losses on nuclear decommissioning trust funds and other investments |  |  | (442 | ) |  |  | (589 | )
Other adjustments |  |  | (35 | ) |  |  | 60 |
Changes in: |  |  |  |  |  |
Accounts receivable |  |  | (63 | ) |  |  | 379 |
Inventories |  |  | (124 | ) |  |  | (47 | )
Deferred fuel and purchased gas costs, net |  |  | (493 | ) |  |  | 768 |
Prepayments and deposits, net |  |  | (545 | ) |  |  | (14 | )
Accounts payable |  |  | (42 | ) |  |  | (27 | )
Accrued interest, payroll and taxes |  |  | 188 |  |  |  | 224 |
Net realized and unrealized changes related to derivative activities |  |  | 551 |  |  |  | (34 | )
Pension and other postretirement benefits |  |  | (205 | ) |  |  | (126 | )
Other operating assets and liabilities |  |  | 68 |  |  |  | (216 | )
Net cash provided by operating activities |  |  | 4,374 |  |  |  | 4,377 |
Investing Activities |  |  |  |  |  |
Plant construction and other property additions (including nuclear fuel) |  |  | (9,255 | ) |  |  | (8,719 | )
Acquisition of solar development projects |  |  | (12 | ) |  |  | (202 | )
Proceeds from East Ohio, Questar Gas and PSNC Transactions |  |  | 2 |  |  |  | 9,237 |
Proceeds from sales of securities |  |  | 2,563 |  |  |  | 2,230 |
Purchases of securities |  |  | (2,670 | ) |  |  | (2,350 | )
Contributions to equity method affiliates |  |  | (20 | ) |  |  | (14 | )
Distributions from equity method affiliates |  |  | — |  |  |  | 126 |
Other |  |  | (109 | ) |  |  | (15 | )
Net cash provided by (used in) investing activities |  |  | (9,501 | ) |  |  | 293 |
Financing Activities |  |  |  |  |  |
Issuance (repayment) of short-term debt, net |  |  | 22 |  |  |  | 148 |
364-day term loan facility borrowings |  |  | — |  |  |  | 3,000 |
Repayment of 364-day term loan facility borrowings |  |  | — |  |  |  | (7,750 | )
Issuance and remarketing of long-term debt |  |  | 7,647 |  |  |  | 4,743 |
Repayment and repurchase of long-term debt |  |  | (972 | ) |  |  | (1,884 | )
Issuance of securitization bonds |  |  | — |  |  |  | 1,282 |
Repayment of securitization bonds |  |  | (80 | ) |  |  | — |
Supplemental credit facility repayments |  |  | — |  |  |  | (450 | )
Proceeds from sale of noncontrolling interest in OSWP |  |  | (88 | ) |  |  | — |
Contributions from Stonepeak to OSWP |  |  | 1,141 |  |  |  | — |
Distributions from OSWP to Stonepeak |  |  | (167 | ) |  |  | — |
Repurchase of preferred stock |  |  | — |  |  |  | (440 | )
Issuance of common stock |  |  | 105 |  |  |  | 102 |
Common dividend payments |  |  | (1,708 | ) |  |  | (1,678 | )
Other |  |  | (72 | ) |  |  | (142 | )
Net cash provided by (used in) financing activities |  |  | 5,828 |  |  |  | (3,069 | )
Increase in cash, restricted cash and equivalents |  |  | 701 |  |  |  | 1,601 |
Cash, restricted cash and equivalents at beginning of period |  |  | 365 |  |  |  | 301 |
Cash, restricted cash and equivalents at end of period |  | $ | 1,066 |  |  | $ | 1,902 |

See Note 2 for disclosure of supplemental cash flow information.

The accompanying notes are an integral part of Dominion Energy’s Consolidated Financial Statements.

13

VIRGINIA ELECTRIC AND POWER COMPANY

CONSOLIDATED STATEMENTS OF INCOME

(Unaudited)

|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenue(1) |  | $ | 3,311 |  |  | $ | 2,762 |  |  | $ | 8,788 |  |  | $ | 7,788 |
Operating Expenses |  |  |  |  |  |  |  |  |  |  |  |
Electric fuel and other energy-related purchases(1) |  |  | 1,071 |  |  |  | 690 |  |  |  | 2,569 |  |  |  | 2,098 |
Purchased electric capacity |  |  | 32 |  |  |  | 24 |  |  |  | 56 |  |  |  | 53 |
Other operations and maintenance: |  |  |  |  |  |  |  |  |  |  |  |
Affiliated suppliers |  |  | 127 |  |  |  | 110 |  |  |  | 386 |  |  |  | 325 |
Other |  |  | 450 |  |  |  | 464 |  |  |  | 1,354 |  |  |  | 1,300 |
Depreciation and amortization |  |  | 418 |  |  |  | 375 |  |  |  | 1,212 |  |  |  | 1,268 |
Other taxes |  |  | 93 |  |  |  | 83 |  |  |  | 282 |  |  |  | 248 |
Impairment of assets and other charges (benefits) |  |  | 129 |  |  |  | 40 |  |  |  | 225 |  |  |  | 38 |
Total operating expenses |  |  | 2,320 |  |  |  | 1,786 |  |  |  | 6,084 |  |  |  | 5,330 |
Income from operations |  |  | 991 |  |  |  | 976 |  |  |  | 2,704 |  |  |  | 2,458 |
Other income (expense) |  |  | 85 |  |  |  | 59 |  |  |  | 191 |  |  |  | 162 |
Interest and related charges(1) |  |  | 235 |  |  |  | 239 |  |  |  | 729 |  |  |  | 633 |
Income before income tax expense |  |  | 841 |  |  |  | 796 |  |  |  | 2,166 |  |  |  | 1,987 |
Income tax expense |  |  | 151 |  |  |  | 146 |  |  |  | 356 |  |  |  | 399 |
Net Income Including Noncontrolling Interests |  |  | 690 |  |  |  | 650 |  |  |  | 1,810 |  |  |  | 1,588 |
Noncontrolling Interests |  |  | 22 |  |  |  | — |  |  |  | 122 |  |  |  | — |
Net Income Attributable to Virginia Power |  | $ | 668 |  |  | $ | 650 |  |  | $ | 1,688 |  |  | $ | 1,588 |

(1)
See Note 19 for amounts attributable to affiliates.

The accompanying notes are an integral part of Virginia Power’s Consolidated Financial Statements.

14

VIRGINIA ELECTRIC AND POWER COMPANY

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Net income including noncontrolling interests |  | $ | 690 |  |  | $ | 650 |  |  | $ | 1,810 |  |  | $ | 1,588 |
Other comprehensive income (loss), net of taxes: |  |  |  |  |  |  |  |  |  |  |  |
Net deferred gains (losses) on derivatives-hedging activities(1) |  |  | (2 | ) |  |  | (7 | ) |  |  | (7 | ) |  |  | 2 |
Changes in unrealized net gains (losses) on investment securities(2) |  |  | 1 |  |  |  | 5 |  |  |  | 1 |  |  |  | 1 |
Amounts reclassified to net income: |  |  |  |  |  |  |  |  |  |  |  |
Net realized (gains) losses on investment securities(3) |  |  | — |  |  |  | (1 | ) |  |  | — |  |  |  | 1 |
Total other comprehensive income (loss) |  |  | (1 | ) |  |  | (3 | ) |  |  | (6 | ) |  |  | 4 |
Comprehensive income including noncontrolling interests |  |  | 689 |  |  |  | 647 |  |  |  | 1,804 |  |  |  | 1,592 |
Comprehensive income (loss) attributable to noncontrolling interests |  |  | 22 |  |  |  | — |  |  |  | 122 |  |  |  | — |
Comprehensive income attributable to Virginia Power |  | $ | 667 |  |  | $ | 647 |  |  | $ | 1,682 |  |  | $ | 1,592 |

(1)
Net of $— million and $3 million tax for the three months ended September 30, 2025 and 2024, respectively, and net of $2 million and $— million tax for the nine months ended September 30, 2025 and 2024, respectively.
(2)
Net of $(1) million and $(3) million tax for the three months ended September 30, 2025 and 2024, respectively, and net of $(1) million and $(2) million tax for the nine months ended September 30, 2025 and 2024, respectively.
(3)
Net of $— million and $(1) million tax for the three months ended September 30, 2025 and 2024, respectively, and net of $— million and $(1) million tax for the nine months ended September 30, 2025 and 2024, respectively.

The accompanying notes are an integral part of Virginia Power’s Consolidated Financial Statements.

15

VIRGINIA ELECTRIC AND POWER COMPANY

CON SOLIDATED BALANCE SHEETS

(Unaudited)

|  | September 30, 2025 |  |  | December 31, 2024(1) |
(millions) |  |  |  |  |  |
ASSETS |  |  |  |  |  |
Current Assets |  |  |  |  |  |
Cash and cash equivalents(2) |  | $ | 646 |  |  | $ | 160 |
Customer receivables (less allowance for doubtful accounts of $21 and $23)(2) |  |  | 1,759 |  |  |  | 1,612 |
Other receivables (less allowance for doubtful accounts of $3 and $2) |  |  | 112 |  |  |  | 168 |
Affiliated receivables |  |  | 53 |  |  |  | 27 |
Inventories (average cost method) |  |  | 1,213 |  |  |  | 1,148 |
Derivative assets(3) |  |  | 192 |  |  |  | 248 |
Regulatory assets(2) |  |  | 1,140 |  |  |  | 697 |
Other(2) |  |  | 261 |  |  |  | 194 |
Total current assets |  |  | 5,376 |  |  |  | 4,254 |
Investments |  |  |  |  |  |
Nuclear decommissioning trust funds |  |  | 4,745 |  |  |  | 4,286 |
Other |  |  | 4 |  |  |  | 4 |
Total investments |  |  | 4,749 |  |  |  | 4,290 |
Property, Plant and Equipment |  |  |  |  |  |
Property, plant and equipment(2) |  |  | 77,185 |  |  |  | 70,550 |
Accumulated depreciation and amortization |  |  | (18,996 | ) |  |  | (18,033 | )
Total property, plant and equipment, net |  |  | 58,189 |  |  |  | 52,517 |
Deferred Charges and Other Assets |  |  |  |  |  |
Derivative assets(3) |  |  | 112 |  |  |  | 127 |
Regulatory assets(2) |  |  | 4,283 |  |  |  | 4,537 |
Other(2)(3) |  |  | 3,196 |  |  |  | 2,662 |
Total deferred charges and other assets |  |  | 7,591 |  |  |  | 7,326 |
Total assets |  | $ | 75,905 |  |  | $ | 68,387 |

(1)
Virginia Power’s Consolidated Balance Sheet at December 31, 2024 has been derived from the audited Consolidated Balance Sheet at that date.
(2)
See Note 15 for amounts attributable to VIEs.
(3)
See Note 19 for amounts attributable to affiliates.

The accompanying notes are an integral part of Virginia Power’s Consolidated Financial Statements.

16

VIRGINIA ELECTRIC AND POWER COMPANY

CONSOLIDATED BALANCE SHEETS—(Continued)

(Unaudited)

|  | September 30, 2025 |  |  | December 31, 2024(1) |
(millions) |  |  |  |  |  |
LIABILITIES AND EQUITY |  |  |  |  |  |
Current Liabilities |  |  |  |  |  |
Securities due within one year(2) |  | $ | 959 |  |  | $ | 548 |
Short-term debt |  |  | — |  |  |  | 950 |
Accounts payable(2) |  |  | 655 |  |  |  | 660 |
Payables to affiliates |  |  | 127 |  |  |  | 133 |
Accrued dividend(3) |  |  | — |  |  |  | 407 |
Affiliated current borrowings |  |  | — |  |  |  | 500 |
Accrued interest, payroll and taxes(2) |  |  | 509 |  |  |  | 366 |
Regulatory liabilities |  |  | 358 |  |  |  | 385 |
Derivative liabilities(3) |  |  | 28 |  |  |  | 139 |
Other(2)(3) |  |  | 1,382 |  |  |  | 1,549 |
Total current liabilities |  |  | 4,018 |  |  |  | 5,637 |
Long-Term Debt |  |  |  |  |  |
Long-term debt |  |  | 21,048 |  |  |  | 18,874 |
Securitization bonds(2) |  |  | 969 |  |  |  | 1,054 |
Other |  |  | 145 |  |  |  | 110 |
Total long-term debt |  |  | 22,162 |  |  |  | 20,038 |
Deferred Credits and Other Liabilities |  |  |  |  |  |
Deferred income taxes |  |  | 4,852 |  |  |  | 4,476 |
Deferred investment tax credits |  |  | 622 |  |  |  | 640 |
Regulatory liabilities |  |  | 6,236 |  |  |  | 6,139 |
Derivative liabilities(3) |  |  | 62 |  |  |  | 86 |
Other(2)(3) |  |  | 6,585 |  |  |  | 6,275 |
Total deferred credits and other liabilities |  |  | 18,357 |  |  |  | 17,616 |
Total liabilities |  |  | 44,537 |  |  |  | 43,291 |
Commitments and Contingencies (see Note 17) |  |  |  |  |  |
Equity |  |  |  |  |  |
Common stock – no par(4) |  |  | 12,487 |  |  |  | 8,987 |
Other paid-in capital |  |  | 999 |  |  |  | 1,006 |
Retained earnings |  |  | 13,825 |  |  |  | 12,136 |
Accumulated other comprehensive income |  |  | 22 |  |  |  | 28 |
Shareholder’s equity |  |  | 27,333 |  |  |  | 22,157 |
Noncontrolling interests |  |  | 4,035 |  |  |  | 2,939 |
Total equity |  |  | 31,368 |  |  |  | 25,096 |
Total liabilities and equity |  | $ | 75,905 |  |  | $ | 68,387 |

(1)
Virginia Power’s Consolidated Balance Sheet at December 31, 2024 has been derived from the audited Consolidated Balance Sheet at that date.
(2)
See Note 15 for amounts attributable to VIEs.
(3)
See Note 19 for amounts attributable to affiliates.
(4)
500,000 shares authorized; 373,881 and 324,245 shares outstanding at September 30, 2025 and December 31, 2024, respectively.

The accompanying notes are an integral part of Virginia Power’s Consolidated Financial Statements.

17

VIRGINIA ELECTRIC AND POWER COMPANY

CONSOLIDATED STATEMENTS OF EQUITY

(Unaudited)

QUARTER-TO-DATE

|  | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Shares |  |  | Amount |  |  | Other Paid-In Capital |  |  | Retained Earnings |  |  | AOCI |  |  | Shareholder's Equity |  |  | Noncontrolling Interests |  |  | Total Equity |
(millions, except for shares) |  | (thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
June 30, 2024 |  |  | 324 |  |  | $ | 8,987 |  |  | $ | 1,113 |  |  | $ | 12,185 |  |  | $ | 24 |  |  | $ | 22,309 |  |  | $ | — |  |  | $ | 22,309 |
Net income |  |  |  |  |  |  |  |  |  |  |  | 650 |  |  |  |  |  |  | 650 |  |  |  |  |  |  | 650 |
Other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (3 | ) |  |  | (3 | ) |  |  |  |  |  | (3 | )
Other |  |  |  |  |  |  |  |  |  |  |  | (1 | ) |  |  |  |  |  | (1 | ) |  |  |  |  |  | (1 | )
September 30, 2024 |  |  | 324 |  |  | $ | 8,987 |  |  | $ | 1,113 |  |  | $ | 12,834 |  |  | $ | 21 |  |  | $ | 22,955 |  |  | $ | — |  |  | $ | 22,955 |
June 30, 2025 |  |  | 354 |  |  | $ | 11,087 |  |  | $ | 999 |  |  | $ | 13,156 |  |  | $ | 23 |  |  | $ | 25,265 |  |  | $ | 3,657 |  |  | $ | 28,922 |
Net income including noncontrolling interests |  |  |  |  |  |  |  |  |  |  |  | 668 |  |  |  |  |  |  | 668 |  |  |  | 22 |  |  |  | 690 |
Issuance of stock to Dominion Energy |  | 20 |  |  |  | 1,400 |  |  |  |  |  |  |  |  |  |  |  |  | 1,400 |  |  |  |  |  |  | 1,400 |
Contributions from Stonepeak to OSWP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 417 |  |  |  | 417 |
Distributions from OSWP to Stonepeak |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (61 | ) |  |  | (61 | )
Other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1 | ) |  |  | (1 | ) |  |  |  |  |  | (1 | )
Other |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  | 1 |  |  |  |  |  |  | 1 |
September 30, 2025 |  |  | 374 |  |  | $ | 12,487 |  |  | $ | 999 |  |  | $ | 13,825 |  |  | $ | 22 |  |  | $ | 27,333 |  |  | $ | 4,035 |  |  | $ | 31,368 |

YEAR-TO-DATE

|  | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Shares |  |  | Amount |  |  | Other Paid-In Capital |  |  | Retained Earnings |  |  | AOCI |  |  | Shareholder's Equity |  |  | Noncontrolling Interests |  |  | Total Equity |
(millions, except for shares) |  | (thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
December 31, 2023 |  |  | 324 |  |  | $ | 8,987 |  |  | $ | 1,113 |  |  | $ | 11,496 |  |  | $ | 17 |  |  | $ | 21,613 |  |  | $ | — |  |  | $ | 21,613 |
Net income |  |  |  |  |  |  |  |  |  |  |  | 1,588 |  |  |  |  |  |  | 1,588 |  |  |  |  |  |  | 1,588 |
Dividends |  |  |  |  |  |  |  |  |  |  |  | (250 | ) |  |  |  |  |  | (250 | ) |  |  |  |  |  | (250 | )
Other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  |  | 4 |  |  |  |  |  |  | 4 |
September 30, 2024 |  |  | 324 |  |  | $ | 8,987 |  |  | $ | 1,113 |  |  | $ | 12,834 |  |  | $ | 21 |  |  | $ | 22,955 |  |  | $ | — |  |  | $ | 22,955 |
December 31, 2024 |  |  | 324 |  |  | $ | 8,987 |  |  | $ | 1,006 |  |  | $ | 12,136 |  |  | $ | 28 |  |  | $ | 22,157 |  |  | $ | 2,939 |  |  | $ | 25,096 |
Net income including noncontrolling interests |  |  |  |  |  |  |  |  |  |  |  | 1,688 |  |  |  |  |  |  | 1,688 |  |  |  | 122 |  |  |  | 1,810 |
Issuance of stock to Dominion Energy |  | 50 |  |  |  | 3,500 |  |  |  |  |  |  |  |  |  |  |  |  | 3,500 |  |  |  |  |  |  | 3,500 |
Sale of noncontrolling interest in OSWP |  |  |  |  |  |  |  |  | (7 | ) |  |  |  |  |  |  |  |  | (7 | ) |  |  |  |  |  | (7 | )
Contributions from Stonepeak to OSWP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,141 |  |  |  | 1,141 |
Distributions from OSWP to Stonepeak |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (167 | ) |  |  | (167 | )
Other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (6 | ) |  |  | (6 | ) |  |  |  |  |  | (6 | )
Other |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  | 1 |  |  |  |  |  |  | 1 |
September 30, 2025 |  |  | 374 |  |  | $ | 12,487 |  |  | $ | 999 |  |  | $ | 13,825 |  |  | $ | 22 |  |  | $ | 27,333 |  |  | $ | 4,035 |  |  | $ | 31,368 |

The accompanying notes are an integral part of Virginia Power’s Consolidated Financial Statements.

18

VIRGINIA ELECTRIC AND POWER COMPANY

CO NSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

Nine Months Ended September 30, |  | 2025 |  |  | 2024 |
(millions) |  |  |  |  |  |
Operating Activities |  |  |  |  |  |
Net income including noncontrolling interests |  | $ | 1,810 |  |  | $ | 1,588 |
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operating activities: |  |  |  |  |  |
Depreciation and amortization (including nuclear fuel) |  |  | 1,337 |  |  |  | 1,386 |
Deferred income taxes |  |  | 225 |  |  |  | 381 |
Deferred investment tax benefits |  |  | (18 | ) |  |  | (11 | )
Impairment of assets and other charges (benefits) |  |  | 225 |  |  |  | 37 |
Net (gains) losses on nuclear decommissioning trust funds and other investments |  |  | (65 | ) |  |  | (85 | )
Other adjustments |  |  | (71 | ) |  |  | (20 | )
Changes in: |  |  |  |  |  |
Accounts receivable |  |  | (129 | ) |  |  | 89 |
Affiliated receivables and payables |  |  | (32 | ) |  |  | (38 | )
Inventories |  |  | (66 | ) |  |  | (41 | )
Prepayments and deposits, net |  |  | (59 | ) |  |  | 11 |
Deferred fuel expenses, net |  |  | (464 | ) |  |  | 345 |
Accounts payable |  |  | 64 |  |  |  | 41 |
Accrued interest, payroll and taxes |  |  | 143 |  |  |  | 200 |
Net realized and unrealized changes related to derivative activities |  |  | 95 |  |  |  | 136 |
Other operating assets and liabilities |  |  | 323 |  |  |  | (84 | )
Net cash provided by operating activities |  |  | 3,318 |  |  |  | 3,935 |
Investing Activities |  |  |  |  |  |
Plant construction and other property additions |  |  | (7,531 | ) |  |  | (6,885 | )
Purchases of nuclear fuel |  |  | (147 | ) |  |  | (122 | )
Acquisition of solar development projects |  |  | (12 | ) |  |  | (27 | )
Proceeds from sales of securities |  |  | 1,412 |  |  |  | 1,370 |
Purchases of securities |  |  | (1,473 | ) |  |  | (1,449 | )
Other |  |  | (78 | ) |  |  | (25 | )
Net cash used in investing activities |  |  | (7,829 | ) |  |  | (7,138 | )
Financing Activities |  |  |  |  |  |
Issuance (repayment) of short-term debt, net |  |  | (950 | ) |  |  | 285 |
Issuance (repayment) of affiliated current borrowings, net |  |  | (500 | ) |  |  | 133 |
Issuance and remarketing of long-term debt |  |  | 3,172 |  |  |  | 2,443 |
Repayment and repurchase of long-term debt |  |  | (572 | ) |  |  | (593 | )
Issuance of securitization bonds |  |  | — |  |  |  | 1,282 |
Repayment of securitization bonds |  |  | (80 | ) |  |  | — |
Proceeds from sale of noncontrolling interest in OSWP |  |  | (88 | ) |  |  | — |
Contributions from Stonepeak to OSWP |  |  | 1,141 |  |  |  | — |
Distributions from OSWP to Stonepeak |  |  | (167 | ) |  |  | — |
Issuance of common stock |  |  | 3,500 |  |  |  | — |
Common dividend payments to parent |  |  | (407 | ) |  |  | (250 | )
Other |  |  | 27 |  |  |  | (55 | )
Net cash provided by financing activities |  |  | 5,076 |  |  |  | 3,245 |
Increase in cash, restricted cash and equivalents |  |  | 565 |  |  |  | 42 |
Cash, restricted cash and equivalents at beginning of period |  |  | 206 |  |  |  | 90 |
Cash, restricted cash and equivalents at end of period |  | $ | 771 |  |  | $ | 132 |

See Note 2 for disclosure of supplemental cash flow information.

The accompanying notes are an integral part of Virginia Power’s Consolidated Financial Statements.

19

COMBINED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note 1. Nature of Operations

Dominion Energy, headquartered in Richmond, Virginia, is one of the nation’s leading developers and operators of regulated offshore wind and solar power and the largest producer of carbon-free electricity in New England, and serves primarily electric utility customers in Virginia, North Carolina and South Carolina through its subsidiaries, Virginia Power and DESC. Dominion Energy also has nonregulated operations that consist primarily of long-term contracted electric generation operations.

Virginia Power is a regulated public utility that generates, transmits and distributes electricity for sale in Virginia and North Carolina. Virginia Power is a member of PJM, an RTO, and its electric transmission facilities are integrated into the PJM wholesale electricity markets. All of Virginia Power’s stock is owned by Dominion Energy.

Note 2. Significant Accounting Policies

As permitted by the rules and regulations of the SEC, the Companies’ accompanying unaudited Consolidated Financial Statements contain certain condensed financial information and exclude certain footnote disclosures normally included in annual audited consolidated financial statements prepared in accordance with GAAP. These unaudited Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and Notes in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

In the Companies’ opinion, the accompanying unaudited Consolidated Financial Statements contain all adjustments necessary to present fairly their financial position at September 30, 2025, their results of operations and changes in equity for the three and nine months ended September 30, 2025 and 2024 and their cash flows for the nine months ended September 30, 2025 and 2024. Such adjustments are normal and recurring in nature unless otherwise noted.

The Companies make certain estimates and assumptions in preparing their Consolidated Financial Statements in accordance with GAAP. These estimates and assumptions affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses for the periods presented. Actual results may differ from those estimates.

The Companies’ accompanying unaudited Consolidated Financial Statements include, after eliminating intercompany transactions and balances, their accounts, those of their respective majority-owned subsidiaries and non-wholly-owned entities in which they have a controlling financial interest. For certain partnership structures, income is allocated based on the liquidation value of the underlying contractual arrangements. Stonepeak’s 50% ownership interest in OSWP is reflected as noncontrolling interest in the Companies’ Consolidated Financial Statements.

The results of operations for interim periods are not necessarily indicative of the results expected for the full year. Information for quarterly periods is affected by seasonal variations in sales, rate changes, electric fuel and other energy-related purchases, purchased gas expenses and other factors.

Certain amounts in the Companies’ 2024 Consolidated Financial Statements and Notes have been reclassified to conform to the 2025 presentation for comparative purposes; however, such reclassifications did not affect the Companies’ net income, total assets, liabilities, equity or cash flows.

Amounts disclosed for Dominion Energy are inclusive of Virginia Power, where applicable. There have been no significant changes from Note 2 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024, with the exception of the items described below.

Revision of Previously Issued Consolidated Financial Statements

During the second quarter of 2025, the Companies identified misstatements in their previously issued consolidated financial statements related to income taxes associated with investments held within their qualified nuclear decommissioning trusts, primarily a net understatement of deferred income taxes associated with unrealized gains and losses (reflected in the Corporate and Other segment and attributable to Contracted Energy and Dominion Energy Virginia). The Companies assessed the impacts of the misstatements from both quantitative and qualitative perspectives and determined that the related impacts were not material to any of the Companies' previously issued consolidated financial statements.

As a result, the Companies will revise their previously issued consolidated financial statements. Accordingly, all consolidated financial information contained in these consolidated financial statements and the accompanying notes has been revised to reflect the correction. The Companies will present the revision of their previously issued consolidated financial statements for the years ended December 31, 2024 and 2023 in connection with the future filing of their Annual Report on Form 10-K for the year ended December 31, 2025. Additionally, the Companies will present the revision of their previously issued consolidated financial statements for the three months ended March 31, 2025 in connection with the future filing of their Quarterly Report on Form 10-Q for the three months ended March 31, 2026.

20

The following tables detail the impact of the restatement adjustment to each affected line item in the Companies' Consolidated Statements of Income and Statements of Comprehensive Income for the periods presented:

|  | Dominion Energy |
|  | Quarter-to-Date |  |  | Year-to-Date |
Period Ended September 30, 2024 |  | As Previously Reported |  |  | Adjustments |  |  | As Revised |  |  | As Previously Reported |  |  | Adjustments |  |  | As Revised |
(millions, except per share amounts) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other income (expense) |  | $ | 343 |  |  | $ | 5 |  |  | $ | 348 |  |  | $ | 700 |  |  | $ | 14 |  |  | $ | 714 |
Interest and related charges |  |  | 403 |  |  |  | 1 |  |  |  | 404 |  |  |  | 1,446 |  |  |  | 3 |  |  |  | 1,449 |
Income from continuing operations including noncontrolling interests before income tax expense |  |  | 1,158 |  |  |  | 4 |  |  |  | 1,162 |  |  |  | 2,110 |  |  |  | 11 |  |  |  | 2,121 |
Income tax expense |  |  | 185 |  |  |  | 28 |  |  |  | 213 |  |  |  | 331 |  |  |  | 90 |  |  |  | 421 |
Net Income From Continuing Operations Including Noncontrolling Interests |  |  | 973 |  |  |  | (24 | ) |  |  | 949 |  |  |  | 1,779 |  |  |  | (79 | ) |  |  | 1,700 |
Net Income Including Noncontrolling Interests |  |  | 958 |  |  |  | (24 | ) |  |  | 934 |  |  |  | 1,979 |  |  |  | (79 | ) |  |  | 1,900 |
Net Income Attributable to Dominion Energy |  |  | 958 |  |  |  | (24 | ) |  |  | 934 |  |  |  | 1,979 |  |  |  | (79 | ) |  |  | 1,900 |
Amounts Attributable to Dominion Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income from continuing operations |  |  | 973 |  |  |  | (24 | ) |  |  | 949 |  |  |  | 1,779 |  |  |  | (79 | ) |  |  | 1,700 |
Net income attributable to Dominion Energy |  |  | 958 |  |  |  | (24 | ) |  |  | 934 |  |  |  | 1,979 |  |  |  | (79 | ) |  |  | 1,900 |
EPS - Basic |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income from continuing operations |  |  | 1.14 |  |  |  | (0.03 | ) |  |  | 1.11 |  |  |  | 2.05 |  |  |  | (0.10 | ) |  |  | 1.95 |
Net income attributable to Dominion Energy |  |  | 1.12 |  |  |  | (0.03 | ) |  |  | 1.09 |  |  |  | 2.29 |  |  |  | (0.10 | ) |  |  | 2.19 |
EPS - Diluted |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income from continuing operations |  |  | 1.14 |  |  |  | (0.03 | ) |  |  | 1.11 |  |  |  | 2.05 |  |  |  | (0.10 | ) |  |  | 1.95 |
Net income attributable to Dominion Energy |  |  | 1.12 |  |  |  | (0.03 | ) |  |  | 1.09 |  |  |  | 2.29 |  |  |  | (0.10 | ) |  |  | 2.19 |
Comprehensive Income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Changes in unrealized net gains (losses) on investment securities(1) |  |  | 32 |  |  |  | (5 | ) |  |  | 27 |  |  |  | 13 |  |  |  | (3 | ) |  |  | 10 |
Total other comprehensive income (loss) |  |  | 29 |  |  |  | (5 | ) |  |  | 24 |  |  |  | 35 |  |  |  | (3 | ) |  |  | 32 |
Comprehensive income including noncontrolling interests |  |  | 987 |  |  |  | (29 | ) |  |  | 958 |  |  |  | 2,014 |  |  |  | (82 | ) |  |  | 1,932 |
Comprehensive income attributable to Dominion Energy |  |  | 987 |  |  |  | (29 | ) |  |  | 958 |  |  |  | 2,014 |  |  |  | (82 | ) |  |  | 1,932 |

(1)
As previously reported, net of $(10) million and $(2) million tax for the three and nine months ended September 30, 2024, respectively. As revised, net of $(15) million ($(5) million adjustment) and $(5) million ($(3) million adjustment) tax for the three and nine months ended September 30, 2024, respectively.

|  | Virginia Power |
|  | Quarter-to-Date |  |  | Year-to-Date |
Period Ended September 30, 2024 |  | As Previously Reported |  |  | Adjustments |  |  | As Revised |  |  | As Previously Reported |  |  | Adjustments |  |  | As Revised |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other income (expense) |  | $ | 58 |  |  | $ | 1 |  |  | $ | 59 |  |  | $ | 159 |  |  | $ | 3 |  |  | $ | 162 |
Interest and related charges |  |  | 239 |  |  |  | — |  |  |  | 239 |  |  |  | 633 |  |  |  | — |  |  |  | 633 |
Income before income tax expense |  |  | 795 |  |  |  | 1 |  |  |  | 796 |  |  |  | 1,984 |  |  |  | 3 |  |  |  | 1,987 |
Income tax expense |  |  | 141 |  |  |  | 5 |  |  |  | 146 |  |  |  | 386 |  |  |  | 13 |  |  |  | 399 |
Net Income Including Noncontrolling Interests |  |  | 654 |  |  |  | (4 | ) |  |  | 650 |  |  |  | 1,598 |  |  |  | (10 | ) |  |  | 1,588 |
Net Income Attributable to Virginia Power |  |  | 654 |  |  |  | (4 | ) |  |  | 650 |  |  |  | 1,598 |  |  |  | (10 | ) |  |  | 1,588 |
Comprehensive Income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Changes in unrealized net gains (losses) on investment securities(1) |  |  | 6 |  |  |  | (1 | ) |  |  | 5 |  |  |  | 2 |  |  |  | (1 | ) |  |  | 1 |
Total other comprehensive income (loss) |  |  | (2 | ) |  |  | (1 | ) |  |  | (3 | ) |  |  | 5 |  |  |  | (1 | ) |  |  | 4 |
Comprehensive income including noncontrolling interests |  |  | 652 |  |  |  | (5 | ) |  |  | 647 |  |  |  | 1,603 |  |  |  | (11 | ) |  |  | 1,592 |
Comprehensive income attributable to Virginia Power |  |  | 652 |  |  |  | (5 | ) |  |  | 647 |  |  |  | 1,603 |  |  |  | (11 | ) |  |  | 1,592 |

(1)
As previously reported, net of $(2) million and $(1) million tax for the three and nine months ended September 30, 2024, respectively. As revised, net of $(3) million ($(1) million adjustment) and $(2) million ($(1) million adjustment) tax for the three and nine months ended September 30, 2024, respectively.

21

The following table details the impact of the restatement adjustment to each affected line item in the Companies' Consolidated Balance Sheets for the periods presented:

|  | Dominion Energy |  |  | Virginia Power |
December 31, 2024 |  | As Previously Reported |  |  | Adjustments |  |  | As Revised |  |  | As Previously Reported |  |  | Adjustments |  |  | As Revised |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred income taxes |  | $ | 6,412 |  |  | $ | 723 |  |  | $ | 7,135 |  |  | $ | 4,045 |  |  | $ | 431 |  |  | $ | 4,476 |
Regulatory liabilities - noncurrent |  |  | 9,196 |  |  |  | (435 | ) |  |  | 8,761 |  |  |  | 6,574 |  |  |  | (435 | ) |  |  | 6,139 |
Other deferred credits and other liabilities |  |  | 8,426 |  |  |  | 102 |  |  |  | 8,528 |  |  |  | 6,214 |  |  |  | 61 |  |  |  | 6,275 |
Total deferred credits and other liabilities |  |  | 25,409 |  |  |  | 390 |  |  |  | 25,799 |  |  |  | 17,559 |  |  |  | 57 |  |  |  | 17,616 |
Total liabilities |  |  | 72,223 |  |  |  | 390 |  |  |  | 72,613 |  |  |  | 43,234 |  |  |  | 57 |  |  |  | 43,291 |
Retained earnings |  |  | 2,035 |  |  |  | (394 | ) |  |  | 1,641 |  |  |  | 12,194 |  |  |  | (58 | ) |  |  | 12,136 |
Accumulated other comprehensive income (loss) |  |  | (156 | ) |  |  | 4 |  |  |  | (152 | ) |  |  | 27 |  |  |  | 1 |  |  |  | 28 |
Shareholders' equity |  |  | 27,253 |  |  |  | (390 | ) |  |  | 26,863 |  |  |  | 22,214 |  |  |  | (57 | ) |  |  | 22,157 |
Total equity |  |  | 30,192 |  |  |  | (390 | ) |  |  | 29,802 |  |  |  | 25,153 |  |  |  | (57 | ) |  |  | 25,096 |

The following table details the impact of the restatement adjustment to each affected line item in the Companies' Consolidated Statements of Equity for the periods presented:

|  | Dominion Energy |  |  | Virginia Power |
Three Months Ended September 30, 2024 |  | As Previously Reported |  |  | Adjustments |  |  | As Revised |  |  | As Previously Reported |  |  | Adjustments |  |  | As Revised |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retained earnings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at June 30, 2024 |  | $ | 2,083 |  |  | $ | (359 | ) |  | $ | 1,724 |  |  | $ | 12,236 |  |  | $ | (51 | ) |  | $ | 12,185 |
Net income including noncontrolling interests |  |  | 958 |  |  |  | (24 | ) |  |  | 934 |  |  |  | 654 |  |  |  | (4 | ) |  |  | 650 |
Balance at September 30, 2024 |  |  | 2,467 |  |  |  | (383 | ) |  |  | 2,084 |  |  |  | 12,889 |  |  |  | (55 | ) |  |  | 12,834 |
Accumulated other comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at June 30, 2024 |  |  | (167 | ) |  |  | 3 |  |  |  | (164 | ) |  |  | 23 |  |  |  | 1 |  |  |  | 24 |
Other comprehensive income (loss), net of tax |  |  | 29 |  |  |  | (5 | ) |  |  | 24 |  |  |  | (2 | ) |  |  | (1 | ) |  |  | (3 | )
Balance at September 30, 2024 |  |  | (138 | ) |  |  | (2 | ) |  |  | (140 | ) |  |  | 21 |  |  |  | — |  |  |  | 21 |
Shareholders' equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at June 30, 2024 |  |  | 27,073 |  |  |  | (356 | ) |  |  | 26,717 |  |  |  | 22,359 |  |  |  | (50 | ) |  |  | 22,309 |
Net income including noncontrolling interests |  |  | 958 |  |  |  | (24 | ) |  |  | 934 |  |  |  | 654 |  |  |  | (4 | ) |  |  | 650 |
Other comprehensive income (loss), net of tax |  |  | 29 |  |  |  | (5 | ) |  |  | 24 |  |  |  | (2 | ) |  |  | (1 | ) |  |  | (3 | )
Balance at September 30, 2024 |  |  | 27,531 |  |  |  | (385 | ) |  |  | 27,146 |  |  |  | 23,010 |  |  |  | (55 | ) |  |  | 22,955 |
Total equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at June 30, 2024 |  |  | 27,073 |  |  |  | (356 | ) |  |  | 26,717 |  |  |  | 22,359 |  |  |  | (50 | ) |  |  | 22,309 |
Net income including noncontrolling interests |  |  | 958 |  |  |  | (24 | ) |  |  | 934 |  |  |  | 654 |  |  |  | (4 | ) |  |  | 650 |
Other comprehensive income (loss), net of tax |  |  | 29 |  |  |  | (5 | ) |  |  | 24 |  |  |  | (2 | ) |  |  | (1 | ) |  |  | (3 | )
Balance at September 30, 2024 |  |  | 27,531 |  |  |  | (385 | ) |  |  | 27,146 |  |  |  | 23,010 |  |  |  | (55 | ) |  |  | 22,955 |

22

|  | Dominion Energy |  |  | Virginia Power |
Nine Months Ended September 30, 2024 |  | As Previously Reported |  |  | Adjustments |  |  | As Revised |  |  | As Previously Reported |  |  | Adjustments |  |  | As Revised |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retained earnings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31, 2023 |  | $ | 2,229 |  |  | $ | (304 | ) |  | $ | 1,925 |  |  | $ | 11,541 |  |  | $ | (45 | ) |  | $ | 11,496 |
Net income including noncontrolling interests |  |  | 1,979 |  |  |  | (79 | ) |  |  | 1,900 |  |  |  | 1,598 |  |  |  | (10 | ) |  |  | 1,588 |
Balance at September 30, 2024 |  |  | 2,467 |  |  |  | (383 | ) |  |  | 2,084 |  |  |  | 12,889 |  |  |  | (55 | ) |  |  | 12,834 |
Accumulated other comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31, 2023 |  |  | (173 | ) |  |  | 1 |  |  |  | (172 | ) |  |  | 16 |  |  |  | 1 |  |  |  | 17 |
Other comprehensive income (loss), net of tax |  |  | 35 |  |  |  | (3 | ) |  |  | 32 |  |  |  | 5 |  |  |  | (1 | ) |  |  | 4 |
Balance at September 30, 2024 |  |  | (138 | ) |  |  | (2 | ) |  |  | (140 | ) |  |  | 21 |  |  |  | — |  |  |  | 21 |
Shareholders' equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31, 2023 |  |  | 27,567 |  |  |  | (303 | ) |  |  | 27,264 |  |  |  | 21,657 |  |  |  | (44 | ) |  |  | 21,613 |
Net income including noncontrolling interests |  |  | 1,979 |  |  |  | (79 | ) |  |  | 1,900 |  |  |  | 1,598 |  |  |  | (10 | ) |  |  | 1,588 |
Other comprehensive income (loss), net of tax |  |  | 35 |  |  |  | (3 | ) |  |  | 32 |  |  |  | 5 |  |  |  | (1 | ) |  |  | 4 |
Balance at September 30, 2024 |  |  | 27,531 |  |  |  | (385 | ) |  |  | 27,146 |  |  |  | 23,010 |  |  |  | (55 | ) |  |  | 22,955 |
Total equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31, 2023 |  |  | 27,567 |  |  |  | (303 | ) |  |  | 27,264 |  |  |  | 21,657 |  |  |  | (44 | ) |  |  | 21,613 |
Net income including noncontrolling interests |  |  | 1,979 |  |  |  | (79 | ) |  |  | 1,900 |  |  |  | 1,598 |  |  |  | (10 | ) |  |  | 1,588 |
Other comprehensive income (loss), net of tax |  |  | 35 |  |  |  | (3 | ) |  |  | 32 |  |  |  | 5 |  |  |  | (1 | ) |  |  | 4 |
Balance at September 30, 2024 |  |  | 27,531 |  |  |  | (385 | ) |  |  | 27,146 |  |  |  | 23,010 |  |  |  | (55 | ) |  |  | 22,955 |

The following table details the impact of the restatement adjustment to each affected line item in the Companies' Consolidated Statements of Cash Flows for the periods presented:

|  | Dominion Energy |  |  | Virginia Power |
Nine Months Ended September 30, 2024 |  | As Previously Reported |  |  | Adjustments |  |  | As Revised |  |  | As Previously Reported |  |  | Adjustments |  |  | As Revised |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income including noncontrolling interests |  | $ | 1,979 |  |  | $ | (79 | ) |  | $ | 1,900 |  |  | $ | 1,598 |  |  | $ | (10 | ) |  | $ | 1,588 |
Operating Activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred income taxes |  |  | (346 | ) |  |  | 65 |  |  |  | (281 | ) |  |  | 381 |  |  |  | — |  |  |  | 381 |
Other operating assets and liabilities |  |  | (230 | ) |  |  | 14 |  |  |  | (216 | ) |  |  | (94 | ) |  |  | 10 |  |  |  | (84 | )
Net cash provided by operating activities |  |  | 4,377 |  |  |  | — |  |  |  | 4,377 |  |  |  | 3,935 |  |  |  | — |  |  |  | 3,935 |

23

Cash, Restricted Cash and Equivalents

Restricted Cash and Equivalents

The following table provides a reconciliation of the total cash, restricted cash and equivalents reported within the Companies’ Consolidated Balance Sheets to the corresponding amounts reported within the Companies’ Consolidated Statements of Cash Flows for the nine months ended September 30, 2025 and 2024:

|  | Cash, Restricted Cash and Equivalents at End of Period |  |  | Cash, Restricted Cash and Equivalents at Beginning of Period |
|  | September 30, 2025 |  |  | September 30, 2024 |  |  | December 31, 2024 |  |  | December 31, 2023 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Dominion Energy |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents(1) |  | $ | 932 |  |  | $ | 1,776 |  |  | $ | 310 |  |  | $ | 217 |
Restricted cash and equivalents(2)(3)(4) |  |  | 134 |  |  |  | 126 |  |  |  | 55 |  |  |  | 84 |
Cash, restricted cash and equivalents shown in the Consolidated Statements of Cash Flows |  | $ | 1,066 |  |  | $ | 1,902 |  |  | $ | 365 |  |  | $ | 301 |
Virginia Power |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 646 |  |  | $ | 28 |  |  | $ | 160 |  |  | $ | 90 |
Restricted cash and equivalents(3)(4) |  |  | 125 |  |  |  | 104 |  |  |  | 46 |  |  |  | — |
Cash, restricted cash and equivalents shown in the Consolidated Statements of Cash Flows |  | $ | 771 |  |  | $ | 132 |  |  | $ | 206 |  |  | $ | 90 |

(1)
At December 31, 2023, Dominion Energy had $33 million of cash and cash equivalents included in assets held for sale.
(2)
At December 31, 2023, Dominion Energy had $4 million of restricted cash and equivalents included in assets held for sale.
(3)
Includes $115 million, $41 million and $100 million at VPFS attributable to VIEs at September 30, 2025, December 31, 2024 and September 30, 2024, respectively.
(4)
Unless otherwise noted, restricted cash and equivalents balances are presented within other current assets in the Companies’ Consolidated Balance Sheets.

Supplemental Cash Flow Information

The following table provides supplemental disclosure of cash flow information related to Dominion Energy:

Nine Months Ended September 30, |  | 2025 |  |  | 2024 |
(millions) |  |  |  |  |  |
Significant noncash investing and financing activities:(1) |  |  |  |  |  |
Accrued capital expenditures |  | $ | 891 |  |  | $ | 930 |
Leases(2) |  |  | 315 |  |  |  | 183 |

(1)
See Note 3 for noncash financing activities related to debt assumed with the closing of the East Ohio, Questar Gas and PSNC Transactions.
(2)
Includes $281 million and $100 million of financing leases entered in during the nine months ended September 30, 2025 and 2024, respectively, and $34 million and $83 million of operating leases entered in during the nine months ended September 30, 2025 and 2024, respectively.

The following table provides supplemental disclosure of cash flow information related to Virginia Power:

Nine Months Ended September 30, |  | 2025 |  |  | 2024 |
(millions) |  |  |  |  |  |
Significant noncash investing and financing activities: |  |  |  |  |  |
Accrued capital expenditures |  | $ | 727 |  |  | $ | 738 |
Leases(1) |  |  | 317 |  |  |  | 156 |

(1)
Includes $62 million and $89 million of financing leases entered in during the nine months ended September 30, 2025 and 2024, respectively, and $255 million and $67 million of operating leases entered in during the nine months ended September 30, 2025 and 2024, respectively.

Property, Plant and Equipment

Virginia Power recorded a $25 million ($18 million after-tax) charge during the third quarter of 2024 within impairment of assets and other charges in its Consolidated Statements of Income related to the write-off of early-stage development costs associated with a hydroelectric pumped storage facility that it is no longer considering constructing.

Note 3. Acquisitions and Dispositions

Business Review Dispositions

Sale of East Ohio

In September 2023, Dominion Energy entered into an agreement with Enbridge for the East Ohio Transaction, which included the sale of East Ohio and was valued at approximately $6.6 billion, consisting of a purchase price of approximately $4.3 billion in cash and approximately $2.3 billion of assumed indebtedness. The sale closed in March 2024 after all customary closing and regulatory conditions were satisfied, including completion of an internal reorganization, as discussed in Note 3 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024. Dominion Energy utilized the after-tax proceeds, as required, to repay outstanding borrowings under 364-day term loan facilities. See Note 17 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024 for additional information. The purchase

24

price was subject to customary post-closing adjustments, including adjustments for cash, indebtedness, net working capital, capital expenditures and net regulatory assets and liabilities. The transaction was structured as a stock sale for tax purposes.

Dominion Energy retained the pension and other postretirement benefit plan assets and obligations, including related income tax and other deferred balances, associated with retiree participants in both East Ohio’s union pension and other postretirement benefit plans and retiree participants of the sale entities in the Dominion Energy Pension Plan and the Dominion Energy Retiree Health and Welfare Plan. Dominion Energy recognized a pre-tax loss of $97 million ($109 million after-tax) upon the closing of the transaction, including the write-off of $1.5 billion of goodwill which was not deductible for tax purposes and including the effects of final closing adjustments. In 2023, Dominion Energy recorded a charge of $29 million to reflect the recognition of deferred taxes on the outside basis of East Ohio’s stock upon meeting the classification as held for sale. These deferred taxes reversed in the first quarter of 2024 upon closing of the sale and became a component of current income tax expense on the gain/loss on sale disclosed above. See Note 5 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024 for additional information.

At the closing of the East Ohio Transaction, Dominion Energy and Enbridge entered into a transition services agreement as discussed in Note 3 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Sale of PSNC

In September 2023, Dominion Energy entered into an agreement with Enbridge for the PSNC Transaction, which included the sale of PSNC and was valued at approximately $3.3 billion, consisting of a purchase price of $2.0 billion in cash and $1.3 billion of assumed indebtedness. The sale closed in September 2024 after all customary closing and regulatory conditions were satisfied, including completion of an internal reorganization, as discussed in Note 3 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Dominion Energy retained the entirety of the assets and obligations, including related income tax and other deferred balances, of the pension and other postretirement employee benefit plans associated with the operations included in the transaction and relating to services provided through closing. Dominion Energy recognized a pre-tax loss of $34 million ($30 million after-tax loss) upon the closing of the transaction, including the write-off of $0.7 billion of goodwill which is not deductible for tax purposes but excluding the effects of final closing adjustments. In 2023, Dominion Energy recorded a charge of $334 million to reflect the deferred taxes on the outside basis of PSNC’s stock upon meeting the classification as held for sale. Dominion Energy recorded an additional charge of $16 million to adjust these deferred taxes to recorded balances as of June 30, 2024. These deferred taxes reversed in the third quarter of 2024 upon closing of the sale and became a component of current income tax expense. See Note 5 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024 for additional information.

At the closing of the PSNC Transaction, Dominion Energy and Enbridge entered into a transition services agreement as discussed in Note 3 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Sale of Questar Gas and Wexpro

In September 2023, Dominion Energy entered into an agreement with Enbridge for the Questar Gas Transaction, which included the sale of Questar Gas, Wexpro and related affiliates and was valued at approximately $4.3 billion, consisting of a purchase price of approximately $3.0 billion in cash and approximately $1.3 billion of assumed indebtedness. The sale closed in May 2024 after all customary closing and regulatory conditions were satisfied, including completion of an internal reorganization, as discussed in Note 3 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024. Dominion Energy utilized the after-tax proceeds, as required, to repay outstanding borrowings under a 364-day term loan facility. See Note 17 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024 for additional information. The purchase price was subject to customary post-closing adjustments, including adjustments for cash, indebtedness, net working capital, capital expenditures and net regulatory assets and liabilities. The transaction was structured as a stock sale for tax purposes.

Dominion Energy retained the pension and other postretirement benefit plan assets and obligations, including related income tax and other deferred balances, associated with retiree participants in the Dominion Energy Pension Plan and the Dominion Energy Retiree Health and Welfare Plan. Dominion Energy recognized a pre-tax loss of $8 million ($34 million after-tax gain) upon the closing of the transaction, including the write-off of $0.7 billion of goodwill which was not deductible for tax purposes and including the effects of final closing adjustments. In 2023, Dominion Energy recorded a charge of $236 million ($231 million after-tax), including amounts associated with an impairment of goodwill. Based on the recorded balances at March 31, 2024, Dominion Energy recorded an additional charge of $78 million ($78 million after-tax), including amounts associated with an impairment of goodwill, in the first quarter of 2024. Following the internal reorganization noted above and upon closing of the East Ohio Transaction, Dominion Energy recorded a tax benefit of $5 million. In 2023, Dominion Energy recorded a charge of $472 million to reflect the deferred taxes on the outside basis of Questar Gas, Wexpro and related affiliates’ stock upon meeting the classification as held for sale. These deferred taxes reversed in the first quarter of 2024 and became a component of current income tax expense. In addition, Dominion Energy recorded an incremental deferred tax benefit

25

of $10 million to reflect the deferred taxes on the outside basis of Questar Gas, Wexpro and related affiliates’ stock in the first quarter of 2024. These deferred taxes reversed in the second quarter of 2024 upon closing of the sale and became a component of current income tax expense on the pre-tax gain/loss on sale. See Note 5 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024 for additional information.

At the closing of the Questar Gas Transaction, Dominion Energy and Enbridge entered into a transition services agreement as discussed in Note 3 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Other Sales

In April 2024, Dominion Energy completed the sale of Birdseye and the Madison solar project for approximately $17 million in cash and recognized an inconsequential gain as discussed in Note 3 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Financial Statement Information for Business Review Dispositions

The following table represents selected information regarding the results of operations, which were reported within discontinued operations in Dominion Energy’s Consolidated Statements of Income:

|  | Three Months Ended September 30, 2024 |  |  | Nine Months Ended September 30, 2024 |
|  | PSNC Transaction(1) |  |  | East Ohio Transaction(1) |  | PSNC Transaction(1) |  | Questar Gas Transaction(1) |  | Other |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue |  | $ | 81 |  |  | $ | 229 |  | $ | 488 |  | $ | 894 |  | $ | — |
Operating expense(2) |  |  | 92 |  |  |  | 247 |  |  | 313 |  |  | 724 |  |  | (8 | )
Other income (expense) |  |  | 5 |  |  |  | (17 | ) |  | 11 |  |  | 2 |  |  | — |
Interest and related charges |  |  | 16 |  |  |  | 15 |  |  | 44 |  |  | 25 |  |  | — |
Income (loss) before income taxes |  |  | (22 | ) |  |  | (50 | ) |  | 142 |  |  | 147 |  |  | 8 |
Income tax expense (benefit) |  |  | (9 | ) |  |  | 11 |  |  | 44 |  |  | 54 |  |  | — |
Net income (loss) attributable to Dominion Energy(3) |  | $ | (13 | ) |  | $ | (61 | ) | $ | 98 |  | $ | 93 |  | $ | 8 |

(1)
Represents amounts attributable to Dominion Energy prior to the closing of the East Ohio Transaction which closed on March 6, 2024, the PSNC Transaction which closed on September 30, 2024 and the Questar Gas Transaction which closed on May 31, 2024.
(2)
East Ohio Transaction includes a charge of $45 million ($33 million after-tax) associated with an increase to certain pension retirement benefits attributable to a plan amendment and a contribution to the defined contribution employee savings plan. See Note 20 for further information on these transactions.
(3)
Excludes $2 million and $(71) million of income tax expense (benefit) attributable to consolidated state adjustments for the three and nine months ended September 30, 2024, respectively.

Capital expenditures and significant noncash items relating to the disposal groups included the following:

| Nine Months Ended September 30, 2024 |
| East Ohio Transaction(1) |  | PSNC Transaction(1) |  | Questar Gas Transaction(1) |  | Other |
(millions) |  |  |  |  |  |  |  |
Capital expenditures | $ | 65 |  | $ | 287 |  | $ | 160 |  | $ | — |
Significant noncash items |  |  |  |  |  |  |  |
Depreciation, depletion and amortization |  | — |  |  | — |  |  | — |  |  | — |
Accrued capital expenditures |  |  |  |  |  |  |  |

(1)
Represents amounts attributable to Dominion Energy prior to the closing of the East Ohio Transaction which closed on March 6, 2024, the PSNC Transaction which closed on September 30, 2024 and the Questar Gas Transaction which closed on May 31, 2024.

26

Note 4. Operating Revenue

The Companies’ operating revenue consists of the following:

|  | Dominion Energy |  |  | Virginia Power |
|  | Quarter-to-Date |  |  | Year-to-Date |  |  | Quarter-to-Date |  |  | Year-to-Date |
Period Ended September 30, |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Regulated electric sales: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential |  | $ | 1,712 |  |  | $ | 1,535 |  |  | $ | 4,628 |  |  | $ | 4,184 |  |  | $ | 1,279 |  |  | $ | 1,155 |  |  | $ | 3,494 |  |  | $ | 3,183 |
Commercial(1) |  |  | 1,627 |  |  |  | 1,248 |  |  |  | 4,211 |  |  |  | 3,533 |  |  |  | 1,353 |  |  |  | 998 |  |  |  | 3,489 |  |  |  | 2,851 |
Industrial |  |  | 245 |  |  |  | 216 |  |  |  | 649 |  |  |  | 642 |  |  |  | 130 |  |  |  | 113 |  |  |  | 327 |  |  |  | 330 |
Government and other retail |  |  | 344 |  |  |  | 303 |  |  |  | 954 |  |  |  | 812 |  |  |  | 324 |  |  |  | 285 |  |  |  | 900 |  |  |  | 763 |
Wholesale |  |  | 54 |  |  |  | 39 |  |  |  | 135 |  |  |  | 108 |  |  |  | 41 |  |  |  | 29 |  |  |  | 107 |  |  |  | 82 |
Nonregulated electric sales |  |  | 295 |  |  |  | 239 |  |  |  | 905 |  |  |  | 693 |  |  |  | 40 |  |  |  | 30 |  |  |  | 105 |  |  |  | 69 |
Regulated gas sales: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential |  |  | 32 |  |  |  | 30 |  |  |  | 249 |  |  |  | 223 |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial |  |  | 24 |  |  |  | 24 |  |  |  | 105 |  |  |  | 100 |  |  |  |  |  |  |  |  |  |  |  |  |
Other |  |  | 7 |  |  |  | 15 |  |  |  | 39 |  |  |  | 50 |  |  |  |  |  |  |  |  |  |  |  |  |
Regulated gas transportation and storage |  |  | 10 |  |  |  | 6 |  |  |  | 26 |  |  |  | 15 |  |  |  |  |  |  |  |  |  |  |  |  |
Other regulated revenue |  |  | 100 |  |  |  | 87 |  |  |  | 243 |  |  |  | 293 |  |  |  | 96 |  |  |  | 84 |  |  |  | 230 |  |  |  | 282 |
Other nonregulated revenues(2)(3)(4) |  |  | 60 |  |  |  | 43 |  |  |  | 169 |  |  |  | 111 |  |  |  | 16 |  |  |  | 11 |  |  |  | 38 |  |  |  | 30 |
Total operating revenue from contracts with customers |  |  | 4,510 |  |  |  | 3,785 |  |  |  | 12,313 |  |  |  | 10,764 |  |  |  | 3,279 |  |  |  | 2,705 |  |  |  | 8,690 |  |  |  | 7,590 |
Other revenues(2)(5) |  |  | 17 |  |  |  | 156 |  |  |  | 100 |  |  |  | 295 |  |  |  | 32 |  |  |  | 57 |  |  |  | 98 |  |  |  | 198 |
Total operating revenue |  | $ | 4,527 |  |  | $ | 3,941 |  |  | $ | 12,413 |  |  | $ | 11,059 |  |  | $ | 3,311 |  |  | $ | 2,762 |  |  | $ | 8,788 |  |  | $ | 7,788 |

(1)
Includes large scale users including certain data center customers.
(2)
See Note 19 for amounts attributable to affiliates.
(3)
Includes sales of renewable energy credits of $8 million and $10 million for the three months ended September 30, 2025 and 2024, respectively, and $23 million and $22 million for the nine months ended September 30, 2025 and 2024, respectively, at Dominion Energy and $4 million for both the three months ended September 30, 2025 and 2024 and $10 million and $9 million for the nine months ended September 30, 2025 and 2024, respectively, at Virginia Power.
(4)
Includes revenue from transition services agreements of $23 million and $17 million for the three months ended September 30, 2025 and 2024, respectively, and $74 million and $34 million for the nine months ended September 30, 2025 and 2024, respectively, at Dominion Energy.
(5)
Includes alternative revenue of $35 million and $24 million for the three months ended September 30, 2025 and 2024, respectively, and $117 million and $85 million for the nine months ended September 30, 2025 and 2024, respectively, at both Dominion Energy and Virginia Power.

Neither Dominion Energy nor Virginia Power have any amounts for revenue to be recognized in the future on multi-year contracts in place at September 30, 2025.

At September 30, 2025 and December 31, 2024, Dominion Energy’s contract liability balances were $45 million and $52 million, respectively. At September 30, 2025 and December 31, 2024, Virginia Power’s contract liability balances were $38 million and $46 million, respectively. The Companies’ contract liabilities are recorded in other current liabilities and other deferred credits and liabilities in the Consolidated Balance Sheets.

The Companies recognize revenue as they fulfill their obligations to provide service to their customers. During the nine months ended September 30, 2025 and 2024, Dominion Energy recognized revenue of $50 million and $45 million, respectively, from the beginning contract liability balances. During the nine months ended September 30, 2025 and 2024, Virginia Power recognized $46 million and $40 million, respectively, from the beginning contract liability balances.

27

Note 5. Income Taxes

For continuing operations, including noncontrolling interests, the statutory U.S. federal income tax rate reconciles to the Companies’ effective income tax rate as follows:

|  | Dominion Energy |  |  | Virginia Power |
Nine Months Ended September 30, |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
U.S. statutory rate |  |  | 21.0 | % |  |  | 21.0 | % |  |  | 21.0 | % |  |  | 21.0 | %
Increases (reductions) resulting from: |  |  |  |  |  |  |  |  |  |  |  |
State taxes, net of federal benefit |  |  | 3.9 |  |  |  | 3.2 |  |  |  | 4.4 |  |  |  | 4.4 |
Investment tax credits |  |  | (2.4 | ) |  |  | (1.4 | ) |  |  | (0.8 | ) |  |  | (0.8 | )
Production tax credits |  |  | (4.7 | ) |  |  | (3.2 | ) |  |  | (4.1 | ) |  |  | (3.0 | )
Reversal of excess deferred income taxes |  |  | (1.6 | ) |  |  | (2.7 | ) |  |  | (1.7 | ) |  |  | (1.8 | )
Qualified nuclear decommissioning trust net gains (losses) |  |  | 2.5 |  |  |  | 4.0 |  |  |  | 0.5 |  |  |  | 0.6 |
Remeasurements and settlements of uncertain tax positions |  |  | (1.0 | ) |  |  | — |  |  |  | — |  |  |  | — |
AFUDC - equity |  |  | (0.7 | ) |  |  | (0.7 | ) |  |  | (1.0 | ) |  |  | (0.6 | )
Absence of tax on noncontrolling interest |  |  | (1.2 | ) |  |  | — |  |  |  | (1.8 | ) |  |  | — |
Other, net |  |  | (0.1 | ) |  |  | (0.3 | ) |  |  | (0.1 | ) |  |  | 0.3 |
Effective tax rate |  |  | 15.7 | % |  |  | 19.9 | % |  |  | 16.4 | % |  |  | 20.1 | %

The IRA created a nuclear production tax credit for electricity produced and sold beginning in 2024 and a clean fuel production tax credit for clean fuel produced and sold beginning in 2025. For the nine months ended September 30, 2025, Dominion Energy and Virginia Power’s effective tax rate includes a $66 million income tax benefit for the nuclear production tax credit and Dominion Energy’s effective tax rate also includes a $50 million income tax benefit for the clean fuel production tax credit. For the nine months ended September 30, 2024, Virginia Power recorded a $53 million tax benefit which represented a prorated portion of the estimated net realizable value of the nuclear production tax credit. The ultimate nuclear and clean fuel production tax credits realized by the Companies could vary significantly based on pending final U.S. Treasury guidance.

In September 2025, Virginia Power entered into an agreement and completed the transfer of nuclear production tax credits for which it received cash of $48 million. In October 2025, Virginia Power entered into a separate agreement and completed the transfer of nuclear production tax credits for which it received cash of $24 million. Any discount between the generated credit value and proceeds from transfer is recognized as a reduction in the benefit associated with such tax credits reflected in the Companies’ income tax expense.

As of September 30, 2025, Dominion Energy’s effective tax rate reflects an income tax net benefit of $18 million reflecting a $30 million remeasurement of an unrecognized tax benefit partially deferred to regulatory liabilities. A reconciliation of changes in Dominion Energy’s and Virginia Power’s unrecognized tax benefits follows for the current period:

|  | Dominion Energy |  |  | Virginia Power |
(millions) |  |  |  |  |  |
Balance at January 1, 2025 |  | $ | 170 |  |  | $ | 56 |
Prior period positions - increases |  |  | — |  |  |  | — |
Prior period positions - decreases |  |  | (38 | ) |  |  | — |
Current period positions - increases |  |  | 3 |  |  |  | 2 |
Settlements with tax authorities |  |  | — |  |  |  | — |
Expiration of statutes of limitations |  |  | — |  |  |  | — |
Balance at September 30, 2025 |  | $ | 135 |  |  | $ | 58 |

Discontinued operations

Income tax expense (benefit) reflected in discontinued operations is $(5) million and $31 million for the nine months ended September 30, 2025 and 2024, respectively. See Note 3 for a discussion of tax expense reflected in discontinued operations during the nine months ended September 30, 2024.

28

Note 6. Earnings Per Share

The following table presents the calculation of Dominion Energy’s basic and diluted EPS:

|  | Quarter-to-Date |  |  | Year-to-Date |
Period Ended September 30, |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
(millions, except EPS) |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to Dominion Energy from continuing operations |  | $ | 1,006 |  |  | $ | 949 |  |  | $ | 2,431 |  |  | $ | 1,700 |
Preferred stock dividends (see Note 16) |  |  | (11 | ) |  |  | (15 | ) |  |  | (33 | ) |  |  | (54 | )
Preferred stock deemed dividends (see Note 16) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (9 | )
Net income attributable to Dominion Energy from continuing operations - Basic & Diluted |  |  | 995 |  |  |  | 934 |  |  |  | 2,398 |  |  |  | 1,637 |
Net income (loss) attributable to Dominion Energy from discontinued operations - Basic & Diluted |  | $ | — |  |  | $ | (15 | ) |  | $ | — |  |  | $ | 200 |
Average shares of common stock outstanding - Basic |  |  | 853.5 |  |  |  | 839.0 |  |  |  | 852.8 |  |  |  | 838.3 |
Net effect of dilutive securities(1) |  |  | 1.9 |  |  |  | 0.3 |  |  |  | 0.8 |  |  |  | 0.1 |
Average shares of common stock outstanding - Diluted |  |  | 855.4 |  |  |  | 839.3 |  |  |  | 853.6 |  |  |  | 838.4 |
EPS from continuing operations - Basic |  | $ | 1.17 |  |  | $ | 1.11 |  |  | $ | 2.81 |  |  | $ | 1.95 |
EPS from discontinued operations - Basic |  |  | — |  |  |  | (0.02 | ) |  |  | — |  |  |  | 0.24 |
EPS attributable to Dominion Energy - Basic |  | $ | 1.17 |  |  | $ | 1.09 |  |  | $ | 2.81 |  |  | $ | 2.19 |
EPS from continuing operations - Diluted |  | $ | 1.16 |  |  | $ | 1.11 |  |  | $ | 2.81 |  |  | $ | 1.95 |
EPS from discontinued operations - Diluted |  |  | — |  |  |  | (0.02 | ) |  |  | — |  |  |  | 0.24 |
EPS attributable to Dominion Energy - Diluted |  | $ | 1.16 |  |  | $ | 1.09 |  |  | $ | 2.81 |  |  | $ | 2.19 |

(1)
Dilutive securities for three months ended September 30, 2025 consists of forward sales agreements entered into in the first, second and third quarters of 2025 and the third and fourth quarters of 2024 (applying the treasury stock method). Dilutive securities for nine months ended September 30, 2025 consists of forward sales agreement entered into the second and third quarters of 2025 and certain forward sales agreements entered into in the first quarter of 2025 and the third and fourth quarters of 2024 (applying the treasury stock method). Additionally, dilutive securities for the three and nine months ended September 30, 2024 consists of certain of the forward sales agreements entered into in the second and third quarters of 2024 (applying the treasury stock method). See Note 16 for additional information.

Certain of the forward sales agreements entered into in the first quarter of 2025 and third and fourth quarters of 2024 were potentially dilutive securities, but were excluded from the calculation of diluted EPS from continuing operations for the nine months ended September 30, 2025 as the dilutive stock price threshold was not met. Additionally, certain of the forward sales agreements entered into in the second and third quarters of 2024 were potentially dilutive securities but were excluded from the calculation of diluted EPS from continuing operations for the three and nine months ended September 30, 2024 as the dilutive stock price threshold was not met.

29

Note 7. Accumulated Other Comprehensive Income (Loss)

Dominion Energy

The following tables present Dominion Energy’s changes in AOCI (net of tax) and reclassifications out of AOCI by component:

|  | Total Derivative-Hedging Activities(1)(2) |  |  | Investment Securities(3) |  |  | Pension and other postretirement benefit costs(4)(5) |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Three Months Ended September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (172 | ) |  | $ | 3 |  |  | $ | 24 |  |  | $ | (145 | )
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | (3 | ) |  |  | 6 |  |  |  | — |  |  |  | 3 |
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |  |  |  |
Interest and related charges |  |  | 10 |  |  |  | — |  |  |  | — |  |  |  | 10 |
Other income (expense) |  |  | — |  |  |  | (1 | ) |  |  | (3 | ) |  |  | (4 | )
Total |  |  | 10 |  |  |  | (1 | ) |  |  | (3 | ) |  |  | 6 |
Income tax expense (benefit) |  |  | (3 | ) |  |  | — |  |  |  | — |  |  |  | (3 | )
Total, net of tax |  |  | 7 |  |  |  | (1 | ) |  |  | (3 | ) |  |  | 3 |
Net current period other comprehensive income (loss) |  |  | 4 |  |  |  | 5 |  |  |  | (3 | ) |  |  | 6 |
Ending balance |  | $ | (168 | ) |  | $ | 8 |  |  | $ | 21 |  |  | $ | (139 | )
Three Months Ended September 30, 2024 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (191 | ) |  | $ | (10 | ) |  | $ | 37 |  |  | $ | (164 | )
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | (7 | ) |  |  | 27 |  |  |  | — |  |  |  | 20 |
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |  |  |  |
Interest and related charges |  |  | 11 |  |  |  | — |  |  |  | — |  |  |  | 11 |
Other income (expense) |  |  | — |  |  |  | (2 | ) |  |  | (4 | ) |  |  | (6 | )
Total |  |  | 11 |  |  |  | (2 | ) |  |  | (4 | ) |  |  | 5 |
Income tax expense (benefit) |  |  | (3 | ) |  |  | 1 |  |  |  | 1 |  |  |  | (1 | )
Total, net of tax |  |  | 8 |  |  |  | (1 | ) |  |  | (3 | ) |  |  | 4 |
Net current period other comprehensive income (loss) |  |  | 1 |  |  |  | 26 |  |  |  | (3 | ) |  |  | 24 |
Ending balance |  | $ | (190 | ) |  | $ | 16 |  |  | $ | 34 |  |  | $ | (140 | )

(1)
Comprised entirely of interest rate derivative hedging activities.
(2)
Net of $57 million, $58 million, $64 million and $64 million tax at September 30, 2025, June 30, 2025, September 30, 2024 and June 30, 2024, respectively.
(3)
Net of $(5) million, $— million, $(8) million and $6 million tax at September 30, 2025, June 30, 2025, September 30, 2024 and June 30, 2024, respectively.
(4)
Comprised entirely of prior service cost.
(5)
Net of $(7) million, $(8) million, $(10) million and $(11) million tax at September 30, 2025, June 30, 2025, September 30, 2024 and June 30, 2024, respectively.

30

|  | Total Derivative-Hedging Activities(1)(2) |  |  | Investment Securities(3) |  |  | Pension and other postretirement benefit costs(4)(5) |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Nine Months Ended September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (171 | ) |  | $ | (10 | ) |  | $ | 29 |  |  | $ | (152 | )
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | (19 | ) |  |  | 15 |  |  |  | — |  |  |  | (4 | )
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |  |  |  |
Interest and related charges |  |  | 30 |  |  |  | — |  |  |  | — |  |  |  | 30 |
Other income (expense) |  |  | — |  |  |  | 4 |  |  |  | (9 | ) |  |  | (5 | )
Total |  |  | 30 |  |  |  | 4 |  |  |  | (9 | ) |  |  | 25 |
Income tax expense (benefit) |  |  | (8 | ) |  |  | (1 | ) |  |  | 1 |  |  |  | (8 | )
Total, net of tax |  |  | 22 |  |  |  | 3 |  |  |  | (8 | ) |  |  | 17 |
Net current period other comprehensive income (loss) |  |  | 3 |  |  |  | 18 |  |  |  | (8 | ) |  |  | 13 |
Ending balance |  | $ | (168 | ) |  | $ | 8 |  |  | $ | 21 |  |  | $ | (139 | )
Nine Months Ended September 30, 2024 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (216 | ) |  | $ | 1 |  |  | $ | 43 |  |  | $ | (172 | )
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | 2 |  |  |  | 10 |  |  |  | — |  |  |  | 12 |
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |  |  |  |
Interest and related charges |  |  | 33 |  |  |  | — |  |  |  | — |  |  |  | 33 |
Other income (expense) |  |  | — |  |  |  | 6 |  |  |  | (13 | ) |  |  | (7 | )
Total |  |  | 33 |  |  |  | 6 |  |  |  | (13 | ) |  |  | 26 |
Income tax expense (benefit) |  |  | (9 | ) |  |  | (1 | ) |  |  | 4 |  |  |  | (6 | )
Total, net of tax |  |  | 24 |  |  |  | 5 |  |  |  | (9 | ) |  |  | 20 |
Net current period other comprehensive income (loss) |  |  | 26 |  |  |  | 15 |  |  |  | (9 | ) |  |  | 32 |
Ending balance |  | $ | (190 | ) |  | $ | 16 |  |  | $ | 34 |  |  | $ | (140 | )

(1)
Comprised entirely of interest rate derivative hedging activities.
(2)
Net of $57 million, $58 million, $64 million and $73 million tax at September 30, 2025, December 31, 2024, September 30, 2024 and December 31, 2023, respectively.
(3)
Net of $(5) million, $9 million, $(8) million and $(1) million tax at September 30, 2025, December 31, 2024, September 30, 2024 and December 31, 2023, respectively.
(4)
Comprised entirely of prior service cost.
(5)
Net of $(7) million, $(9) million, $(10) million and $(14) million tax at September 30, 2025, December 31, 2024, September 30, 2024 and December 31, 2023, respectively.

31

Virginia Power

The following tables present Virginia Power’s changes in AOCI (net of tax) and reclassifications out of AOCI by component:

|  | Total Derivative-Hedging Activities(1)(2) |  |  | Investment Securities(3) |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |
Three Months Ended September 30, 2025 |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 23 |  |  | $ | — |  |  | $ | 23 |
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | (2 | ) |  |  | 1 |  |  |  | (1 | )
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |  |  |
Total |  |  | — |  |  |  | — |  |  |  | — |
Income tax expense (benefit) |  |  | — |  |  |  | — |  |  |  | — |
Total, net of tax |  |  | — |  |  |  | — |  |  |  | — |
Net current period other comprehensive income (loss) |  |  | (2 | ) |  |  | 1 |  |  |  | (1 | )
Ending balance |  | $ | 21 |  |  | $ | 1 |  |  | $ | 22 |
Three Months Ended September 30, 2024 |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 24 |  |  | $ | — |  |  | $ | 24 |
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | (7 | ) |  |  | 5 |  |  |  | (2 | )
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |
Total |  |  | — |  |  |  | — |  |  |  | — |
Income tax expense (benefit) |  |  | — |  |  |  | (1 | ) |  |  | (1 | )
Total, net of tax |  |  | — |  |  |  | (1 | ) |  |  | (1 | )
Net current period other comprehensive income (loss) |  |  | (7 | ) |  |  | 4 |  |  |  | (3 | )
Ending balance |  | $ | 17 |  |  | $ | 4 |  |  | $ | 21 |

(1)
Comprised entirely of interest rate derivative hedging activities.
(2)
Net of $(7) million, $(8) million, $(6) million and $(8) million tax at September 30, 2025, June 30, 2025, September 30, 2024 and June 30, 2024, respectively.
(3)
Net of $— million, $1 million, $(2) million and $1 million tax at September 30, 2025, June 30, 2025, September 30, 2024 and June 30, 2024, respectively.

|  | Total Derivative-Hedging Activities(1)(2) |  |  | Investment Securities(3) |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |
Nine Months Ended September 30, 2025 |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 28 |  |  | $ | — |  |  | $ | 28 |
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | (7 | ) |  |  | 1 |  |  |  | (6 | )
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |  |  |
Total |  |  | — |  |  |  | — |  |  |  | — |
Income tax expense (benefit) |  |  | — |  |  |  | — |  |  |  | — |
Total, net of tax |  |  | — |  |  |  | — |  |  |  | — |
Net current period other comprehensive income (loss) |  |  | (7 | ) |  |  | 1 |  |  |  | (6 | )
Ending balance |  | $ | 21 |  |  | $ | 1 |  |  | $ | 22 |
Nine Months Ended September 30, 2024 |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 15 |  |  | $ | 2 |  |  | $ | 17 |
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | 2 |  |  |  | 1 |  |  |  | 3 |
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |
Other income (expense) |  |  | — |  |  |  | 2 |  |  |  | 2 |
Total |  |  | — |  |  |  | 2 |  |  |  | 2 |
Income tax expense (benefit) |  |  | — |  |  |  | (1 | ) |  |  | (1 | )
Total, net of tax |  |  | — |  |  |  | 1 |  |  |  | 1 |
Net current period other comprehensive income (loss) |  |  | 2 |  |  |  | 2 |  |  |  | 4 |
Ending balance |  | $ | 17 |  |  | $ | 4 |  |  | $ | 21 |

(1)
Comprised entirely of interest rate derivative hedging activities.
(2)
Net of $(7) million, $(10) million, $(6) million and $(5) million tax at September 30, 2025, December 31, 2024, September 30, 2024 and December 31, 2023, respectively.
(3)
Net of $— million, $1 million, $(2) million and $1 million tax at September 30, 2025, December 31, 2024, September 30, 2024 and December 31, 2023, respectively.

Note 8. Fair Value Measurements

The Companies’ fair value measurements are made in accordance with the policies discussed in Note 2 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024. See Note 9 for additional information about the Companies’ derivatives and hedge accounting activities.

32

The Companies enter into certain physical and financial forwards, futures and options, which are considered Level 3 as they have one or more inputs that are not observable and are significant to the valuation. The discounted cash flow method is used to value Level 3 physical and financial forwards and futures contracts. An option model is used to value Level 3 physical options. The discounted cash flow model for forwards and futures calculates mark-to-market valuations based on forward market prices, original transaction prices, volumes, risk-free rate of return and credit spreads. The inputs into the option models are the forward market prices, implied price volatilities, risk-free rate of return, the option expiration dates, the option strike prices, the original sales prices and volumes. For Level 3 fair value measurements, certain forward market prices and implied price volatilities are considered unobservable.

The following table presents the Companies’ quantitative information about Level 3 fair value measurements at September 30, 2025. The range and weighted-average are presented in dollars for market price inputs and percentages for price volatility.

|  |  |  |  |  | Dominion Energy |  | Virginia Power
|  | Valuation Techniques |  | Unobservable Input |  | Fair Value (millions) |  |  | Range |  | Weighted -average(1) |  | Fair Value (millions) |  |  | Range |  | Weighted -average(1)
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Physical and financial forwards: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Natural gas(2) |  | Discounted cash flow |  | Market price (per Dth)(3) |  | $ | 41 |  |  | (2)-4 |  | (1) |  | $ | 41 |  |  | (2)-2 |  | (1)
FTRs |  | Discounted cash flow |  | Market price (per MWh)(3) |  |  | 119 |  |  | (4)-15 |  | 7 |  |  | 119 |  |  | (4)-15 |  | 7
Electricity |  | Discounted cash flow |  | Market price (per MWh)(3) |  |  | 230 |  |  | 30-116 |  | 54 |  |  |  |  |  |  |
Physical options: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Natural gas(2) |  | Option model |  | Market price (per Dth)(3) |  |  | 56 |  |  | 1-9 |  | 4 |  |  | 8 |  |  | 3-8 |  | 5
|  |  |  | Price volatility(4) |  |  |  |  | 11%-73% |  | 44% |  |  |  |  | 14%-71% |  | 41%
Total assets |  |  |  |  |  | $ | 446 |  |  |  |  |  |  | $ | 168 |  |  |  |  |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Physical and financial forwards: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Electricity |  | Discounted cash flow |  | Market price (per MWh)(3) |  |  | 35 |  |  | 30-123 |  | 66 |  |  |  |  |  |  |
Total liabilities |  |  |  |  |  | $ | 35 |  |  |  |  |  |  |  |  |  |  |  |

(1)
Averages weighted by volume.
(2)
Includes basis.
(3)
Represents market prices beyond defined terms for Levels 1 and 2.
(4)
Represents volatilities unrepresented in published markets.

Sensitivity of the fair value measurements to changes in the significant unobservable inputs is as follows:

Significant Unobservable Inputs |  | Position |  | Change to Input |  | Impact on Fair Value Measurement
Market price |  | Buy |  | Increase (decrease) |  | Gain (loss)
Market price |  | Sell |  | Increase (decrease) |  | Loss (gain)
Price volatility |  | Buy |  | Increase (decrease) |  | Gain (loss)
Price volatility |  | Sell |  | Increase (decrease) |  | Loss (gain)

Nonrecurring Fair Value Measurements

See Note 11 for information regarding impairment charges recorded by Dominion Energy associated with a corporate office building and nonregulated renewable natural gas facilities.

33

Recurring Fair Value Measurements

The following table presents the Companies’ assets and liabilities that are measured at fair value on a recurring basis for each hierarchy level, including both current and noncurrent portions:

|  | Dominion Energy |  |  | Virginia Power |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity |  | $ | — |  |  | $ | 82 |  |  | $ | 446 |  |  | $ | 528 |  |  | $ | — |  |  | $ | 27 |  |  | $ | 168 |  |  | $ | 195 |
Interest rate |  |  | — |  |  |  | 190 |  |  |  | — |  |  |  | 190 |  |  |  | — |  |  |  | 77 |  |  |  | — |  |  |  | 77 |
Foreign currency exchange rate |  |  | — |  |  |  | 32 |  |  |  | — |  |  |  | 32 |  |  |  | — |  |  |  | 32 |  |  |  | — |  |  |  | 32 |
Investments(1): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. |  |  | 6,205 |  |  |  | 2 |  |  |  | — |  |  |  | 6,207 |  |  |  | 3,187 |  |  |  | 2 |  |  |  | — |  |  |  | 3,189 |
International |  |  | 180 |  |  |  | — |  |  |  | — |  |  |  | 180 |  |  |  | 105 |  |  |  | — |  |  |  | — |  |  |  | 105 |
Fixed income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt instruments |  |  | — |  |  |  | 512 |  |  |  | — |  |  |  | 512 |  |  |  | — |  |  |  | 288 |  |  |  | — |  |  |  | 288 |
Government securities |  |  | 161 |  |  |  | 1,689 |  |  |  | — |  |  |  | 1,850 |  |  |  | 91 |  |  |  | 993 |  |  |  | — |  |  |  | 1,084 |
Cash equivalents and other |  |  | 33 |  |  |  | — |  |  |  | — |  |  |  | 33 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total assets |  | $ | 6,579 |  |  | $ | 2,507 |  |  | $ | 446 |  |  | $ | 9,532 |  |  | $ | 3,383 |  |  | $ | 1,419 |  |  | $ | 168 |  |  | $ | 4,970 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity |  | $ | — |  |  | $ | 108 |  |  | $ | 35 |  |  | $ | 143 |  |  | $ | — |  |  | $ | 25 |  |  | $ | — |  |  | $ | 25 |
Interest rate |  |  | — |  |  |  | 114 |  |  |  | — |  |  |  | 114 |  |  |  | — |  |  |  | 55 |  |  |  | — |  |  |  | 55 |
Foreign currency exchange rate |  |  | — |  |  |  | 10 |  |  |  | — |  |  |  | 10 |  |  |  | — |  |  |  | 10 |  |  |  | — |  |  |  | 10 |
Total liabilities |  | $ | — |  |  | $ | 232 |  |  | $ | 35 |  |  | $ | 267 |  |  | $ | — |  |  | $ | 90 |  |  | $ | — |  |  | $ | 90 |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity |  | $ | — |  |  | $ | 95 |  |  | $ | 399 |  |  | $ | 494 |  |  | $ | — |  |  | $ | 45 |  |  | $ | 70 |  |  | $ | 115 |
Interest rate |  |  | — |  |  |  | 875 |  |  |  | — |  |  |  | 875 |  |  |  | — |  |  |  | 230 |  |  |  | — |  |  |  | 230 |
Foreign currency exchange rate |  |  | — |  |  |  | 30 |  |  |  | — |  |  |  | 30 |  |  |  | — |  |  |  | 30 |  |  |  | — |  |  |  | 30 |
Investments(1): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. |  |  | 5,403 |  |  |  | 2 |  |  |  | — |  |  |  | 5,405 |  |  |  | 2,769 |  |  |  | 2 |  |  |  | — |  |  |  | 2,771 |
International |  |  | 165 |  |  |  | — |  |  |  | — |  |  |  | 165 |  |  |  | 99 |  |  |  | — |  |  |  | — |  |  |  | 99 |
Fixed income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt instruments |  |  | — |  |  |  | 518 |  |  |  | — |  |  |  | 518 |  |  |  | — |  |  |  | 294 |  |  |  | — |  |  |  | 294 |
Government securities |  |  | 138 |  |  |  | 1,605 |  |  |  | — |  |  |  | 1,743 |  |  |  | 85 |  |  |  | 939 |  |  |  | — |  |  |  | 1,024 |
Cash equivalents and other |  |  | 29 |  |  |  | — |  |  |  | — |  |  |  | 29 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total assets |  | $ | 5,735 |  |  | $ | 3,125 |  |  | $ | 399 |  |  | $ | 9,259 |  |  | $ | 2,953 |  |  | $ | 1,540 |  |  | $ | 70 |  |  | $ | 4,563 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity |  | $ | — |  |  | $ | 108 |  |  | $ | 15 |  |  | $ | 123 |  |  | $ | — |  |  | $ | 31 |  |  | $ | 2 |  |  | $ | 33 |
Interest rate |  |  | — |  |  |  | 197 |  |  |  | — |  |  |  | 197 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Foreign currency exchange rate |  |  | — |  |  |  | 192 |  |  |  | — |  |  |  | 192 |  |  |  | — |  |  |  | 192 |  |  |  | — |  |  |  | 192 |
Total liabilities |  | $ | — |  |  | $ | 497 |  |  | $ | 15 |  |  | $ | 512 |  |  | $ | — |  |  | $ | 223 |  |  | $ | 2 |  |  | $ | 225 |

(1)
Includes investments held in the nuclear decommissioning trusts and rabbi trusts. Excludes $205 million and $212 million of assets at Dominion Energy, inclusive of $71 million and $76 million at Virginia Power, at September 30, 2025 and December 31, 2024, respectively, measured at fair value using NAV (or its equivalent) as a practical expedient which are not required to be categorized in the fair value hierarchy.

34

The following table presents the net change in the Companies’ assets and liabilities measured at fair value on a recurring basis and included in the Level 3 fair value category:

|  | Dominion Energy |  |  | Virginia Power |
|  | Quarter-to-Date |  |  | Year-to-Date |  |  | Quarter-to-Date |  |  | Year-to-Date |
Period Ended September 30, |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 414 |  |  | $ | 360 |  |  | $ | 384 |  |  | $ | 86 |  |  | $ | 179 |  |  | $ | 105 |  |  | $ | 68 |  |  | $ | (116 | )
Total realized and unrealized gains (losses): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Included in earnings: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue |  |  | (24 | ) |  |  | 13 |  |  |  | (14 | ) |  |  | 7 |  |  |  |  |  |  |  |  |  |  |  |  |
Electric fuel and other energy-related purchases |  |  | 115 |  |  |  | 14 |  |  |  | 233 |  |  |  | (134 | ) |  |  | 106 |  |  |  | 10 |  |  |  | 222 |  |  |  | (136 | )
Discontinued operations |  |  | — |  |  |  | (3 | ) |  |  | — |  |  |  | (4 | ) |  |  |  |  |  |  |  |  |  |  |  |
Included in regulatory assets/liabilities |  |  | 33 |  |  |  | (77 | ) |  |  | 76 |  |  |  | 230 |  |  |  | (11 | ) |  |  | (7 | ) |  |  | 102 |  |  |  | 219 |
Settlements |  |  | (126 | ) |  |  | (40 | ) |  |  | (275 | ) |  |  | 54 |  |  |  | (106 | ) |  |  | (17 | ) |  |  | (232 | ) |  |  | 103 |
Purchases |  |  | — |  |  |  | 2 |  |  |  | 8 |  |  |  | 30 |  |  |  | — |  |  |  | — |  |  |  | 8 |  |  |  | 21 |
Transfers out of Level 3 |  |  | (1 | ) |  |  | — |  |  |  | (1 | ) |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Ending balance |  | $ | 411 |  |  | $ | 269 |  |  | $ | 411 |  |  | $ | 269 |  |  | $ | 168 |  |  | $ | 91 |  |  | $ | 168 |  |  | $ | 91 |

Dominion Energy had $(24) million and $(14) million of unrealized gains (losses) included in earnings in the Level 3 fair value category related to assets/liabilities still held at the reporting date for the three and nine months ended September 30, 2025, respectively, and $12 million and $7 million of unrealized gains (losses) included in earnings in the Level 3 fair value category related to assets/liabilities still held at the reporting date for the three and nine months ended September 30, 2024, respectively. Virginia Power had no unrealized gains or losses for the three and nine months ended September 30, 2025 and 2024.

Fair Value of Financial Instruments

Substantially all of the Companies’ financial instruments are recorded at fair value, with the exception of the instruments described below, which are reported at historical cost. Estimated fair values have been determined using available market information and valuation methodologies considered appropriate by management. The carrying amount of cash, restricted cash and equivalents, customer and other receivables, affiliated receivables, short-term debt, affiliated current borrowings, payables to affiliates and accounts payable are representative of fair value because of the short-term nature of these instruments.

For the Companies’ financial instruments that are not recorded at fair value, the carrying amounts and estimated fair values are as follows:

|  | Dominion Energy |  |  | Virginia Power |
|  | Carrying Amount |  |  | Estimated Fair Value(1) |  |  | Carrying Amount |  |  | Estimated Fair Value(1) |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt(2) |  | $ | 39,642 |  |  | $ | 38,383 |  |  | $ | 21,798 |  |  | $ | 20,725 |
Securitization bonds(3) |  |  | 1,136 |  |  |  | 1,158 |  |  |  | 1,136 |  |  |  | 1,158 |
Junior subordinated notes(2) |  |  | 4,731 |  |  |  | 4,981 |  |  |  |  |  |  |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt(2) |  | $ | 34,533 |  |  | $ | 32,167 |  |  | $ | 19,224 |  |  | $ | 17,578 |
Securitization bonds(3) |  |  | 1,217 |  |  |  | 1,218 |  |  |  | 1,217 |  |  |  | 1,218 |
Junior subordinated notes(2) |  |  | 3,223 |  |  |  | 3,372 |  |  |  |  |  |  |

(1)
Fair value is estimated using market prices, where available, and interest rates currently available for issuance of debt with similar terms and remaining maturities. All fair value measurements are classified as Level 2. The carrying amount of debt issuances with short-term maturities and variable rates refinanced at current market rates is a reasonable estimate of their fair value.
(2)
Carrying amount includes current portions included in securities due within one year and amounts which represent the unamortized debt issuance costs and discount or premium. There were no fair value hedges associated with fixed-rate debt at September 30, 2025 and December 31, 2024.
(3)
Carrying amount includes current portions included in securities due within one year.

35

Note 9. Derivatives and Hedge Accounting Activities

The Companies’ accounting policies, objectives and strategies for using derivative instruments and cash collateral or other instruments under master netting or similar arrangements are discussed in Notes 2 and 7 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024. See Note 8 for additional information about fair value measurements and associated valuation methods for derivatives. See Note 18 for additional information regarding credit-related contingent features for the Companies’ derivative instruments.

Balance Sheet Presentation

The tables below present the Companies’ derivative asset and liability balances by type of financial instrument, if the gross amounts recognized in their Consolidated Balance Sheets were netted with derivative instruments and cash collateral received or paid:

|  | Dominion Energy Gross Amounts Not Offset in the Consolidated Balance Sheet |  |  | Virginia Power Gross Amounts Not Offset in the Consolidated Balance Sheet |
|  | Gross Assets Presented in the Consolidated Balance Sheet(1) |  |  | Financial Instruments |  |  | Cash Collateral Received |  |  | Net Amounts |  |  | Gross Assets Presented in the Consolidated Balance Sheet(1) |  |  | Financial Instruments |  |  | Cash Collateral Received |  |  | Net Amounts |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-the-counter |  | $ | 249 |  |  | $ | 9 |  |  | $ | — |  |  | $ | 240 |  |  | $ | 175 |  |  | $ | 7 |  |  | $ | — |  |  | $ | 168 |
Exchange |  |  | 63 |  |  |  | 63 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Interest rate contracts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-the-counter |  |  | 190 |  |  |  | 14 |  |  |  | — |  |  |  | 176 |  |  |  | 77 |  |  |  | 10 |  |  |  | — |  |  |  | 67 |
Foreign currency exchange rate contracts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-the-counter |  |  | 32 |  |  |  | 7 |  |  |  | — |  |  |  | 25 |  |  |  | 32 |  |  |  | 7 |  |  |  | — |  |  |  | 25 |
Total derivatives, subject to a master netting or similar arrangement |  | $ | 534 |  |  | $ | 93 |  |  | $ | — |  |  | $ | 441 |  |  | $ | 284 |  |  | $ | 24 |  |  | $ | — |  |  | $ | 260 |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-the-counter |  | $ | 197 |  |  | $ | 20 |  |  | $ | — |  |  | $ | 177 |  |  | $ | 95 |  |  | $ | 14 |  |  | $ | — |  |  | $ | 81 |
Exchange |  |  | 55 |  |  |  | 54 |  |  |  | — |  |  |  | 1 |  |  |  | 2 |  |  |  | 1 |  |  |  | — |  |  |  | 1 |
Interest rate contracts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-the-counter |  |  | 875 |  |  |  | 197 |  |  |  | — |  |  |  | 678 |  |  |  | 230 |  |  |  | — |  |  |  | — |  |  |  | 230 |
Foreign currency exchange rate contracts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-the-counter |  |  | 30 |  |  |  | 30 |  |  |  | — |  |  |  | — |  |  |  | 30 |  |  |  | 30 |  |  |  | — |  |  |  | — |
Total derivatives, subject to a master netting or similar arrangement |  | $ | 1,157 |  |  | $ | 301 |  |  | $ | — |  |  | $ | 856 |  |  | $ | 357 |  |  | $ | 45 |  |  | $ | — |  |  | $ | 312 |

(1)
Excludes derivative assets of $216 million and $242 million at September 30, 2025 and December 31, 2024, respectively, at Dominion Energy and $20 million and $18 million at September 30, 2025 and December 31, 2024, respectively, at Virginia Power, which are not subject to master netting or other similar arrangements.

36

|  | Dominion Energy Gross Amounts Not Offset in the Consolidated Balance Sheet |  |  | Virginia Power Gross Amounts Not Offset in the Consolidated Balance Sheet |
|  | Gross Liabilities Presented in the Consolidated Balance Sheet(1) |  |  | Financial Instruments |  |  | Cash Collateral Paid |  |  | Net Amounts |  |  | Gross Liabilities Presented in the Consolidated Balance Sheet(1) |  |  | Financial Instruments |  |  | Cash Collateral Paid |  |  | Net Amounts |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-the-counter |  | $ | 24 |  |  | $ | 9 |  |  | $ | — |  |  | $ | 15 |  |  | $ | 14 |  |  | $ | 7 |  |  | $ | — |  |  | $ | 7 |
Exchange |  |  | 115 |  |  |  | 63 |  |  |  | 52 |  |  |  | — |  |  |  | 1 |  |  |  | — |  |  |  | 1 |  |  |  | — |
Interest rate contracts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-the-counter |  |  | 114 |  |  |  | 14 |  |  |  | — |  |  |  | 100 |  |  |  | 55 |  |  |  | 10 |  |  |  | — |  |  |  | 45 |
Foreign currency exchange rate contracts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-the-counter |  |  | 10 |  |  |  | 7 |  |  |  | — |  |  |  | 3 |  |  |  | 10 |  |  |  | 7 |  |  |  | — |  |  |  | 3 |
Total derivatives, subject to a master netting or similar arrangement |  | $ | 263 |  |  | $ | 93 |  |  | $ | 52 |  |  | $ | 118 |  |  | $ | 80 |  |  | $ | 24 |  |  | $ | 1 |  |  | $ | 55 |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-the-counter |  | $ | 42 |  |  | $ | 20 |  |  | $ | — |  |  | $ | 22 |  |  | $ | 15 |  |  | $ | 14 |  |  | $ | — |  |  | $ | 1 |
Exchange |  |  | 74 |  |  |  | 54 |  |  |  | 20 |  |  |  | — |  |  |  | 1 |  |  |  | 1 |  |  |  | — |  |  |  | — |
Interest rate contracts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-the-counter |  |  | 197 |  |  |  | 197 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Foreign currency exchange rate contracts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-the-counter |  |  | 192 |  |  |  | 30 |  |  |  | — |  |  |  | 162 |  |  |  | 192 |  |  |  | 30 |  |  |  | — |  |  |  | 162 |
Total derivatives, subject to a master netting or similar arrangement |  | $ | 505 |  |  | $ | 301 |  |  | $ | 20 |  |  | $ | 184 |  |  | $ | 208 |  |  | $ | 45 |  |  | $ | — |  |  | $ | 163 |

(1)
Excludes derivative liabilities of $4 million and $7 million at Dominion Energy and $10 million and $17 million at Virginia Power at September 30, 2025 and December 31, 2024, respectively, which are not subject to master netting or similar arrangements.

Volumes

The following table presents the volume of the Companies’ derivative activity at September 30, 2025. These volumes are based on open derivative positions and represent the combined absolute value of their long and short positions, except in the case of offsetting transactions, for which they represent the absolute value of the net volume of their long and short positions.

|  | Dominion Energy |  |  | Virginia Power |
|  | Current |  |  | Noncurrent |  |  | Current |  |  | Noncurrent |
Natural Gas (bcf): |  |  |  |  |  |  |  |  |  |  |  |
Fixed price |  |  | 43 |  |  |  | 11 |  |  |  | 40 |  |  |  | 11 |
Basis(1) |  |  | 191 |  |  |  | 310 |  |  |  | 163 |  |  |  | 291 |
Electricity (MWh in millions): |  |  |  |  |  |  |  |  |  |  |  |
Fixed price |  |  | 11 |  |  |  | 33 |  |  |  | 2 |  |  |  |
FTRs |  |  | 65 |  |  |  |  |  |  | 65 |  |  |  |
Interest rate(2) (in millions) |  | $ | 350 |  |  | $ | 13,596 |  |  | $ | 350 |  |  | $ | 8,950 |
Foreign currency exchange rate(2) (in millions) |  |  |  |  |  |  |  |  |  |  |  |
Danish Krone |  | 1,373 kr. |  |  | 140 kr. |  |  | 1,373 kr. |  |  | 140 kr. |
Euro |  | €683 |  |  | €211 |  |  | €683 |  |  | €211 |

(1)
Includes options.
(2)
Maturity is determined based on final settlement period.

37

AOCI

The following table presents selected information related to gains (losses) on cash flow hedges included in AOCI in the Companies’ Consolidated Balance Sheets at September 30, 2025:

|  | Dominion Energy |  | Virginia Power
|  | AOCI After-Tax |  |  | Amounts Expected to be Reclassified to Earnings During the Next 12 Months After-Tax |  |  | Maximum Term (months) |  | AOCI After-Tax |  |  | Amounts Expected to be Reclassified to Earnings During the Next 12 Months After-Tax |  |  | Maximum Term (months)
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  | $ | (168 | ) |  | $ | (25 | ) |  | 399 |  | $ | 21 |  |  | $ | 1 |  |  | 399
Total |  | $ | (168 | ) |  | $ | (25 | ) |  |  |  | $ | 21 |  |  | $ | 1 |  |  |

The amounts that will be reclassified from AOCI to earnings will generally be offset by the recognition of the hedged transactions (e.g., interest rate payments) in earnings, thereby achieving the realization of prices contemplated by the underlying risk management strategies and will vary from the expected amounts presented above as a result of changes in interest rates.

Fair Value and Gains and Losses on Derivative Instruments

The following table presents the fair values of the Companies’ derivatives and where they are presented in their Consolidated Balance Sheets:

| Dominion Energy |  | Virginia Power |
| Assets |  | Liabilities |  | Assets |  | Liabilities |
(millions) |  |  |  |  |  |  |  |
At September 30, 2025 |  |  |  |  |  |  |  |
Current derivatives not under cash flow hedge accounting |  |  |  |  |  |  |  |
Commodity | $ | 224 |  | $ | 62 |  | $ | 144 |  | $ | 23 |
Interest rate |  | 14 |  |  | 2 |  |  |  |  |
Foreign currency exchange rate |  | 23 |  |  | 3 |  |  | 23 |  |  | 3 |
Current derivatives under cash flow hedge accounting |  |  |  |  |  |  |  |
Interest rate |  | 25 |  |  | 2 |  |  | 25 |  |  | 2 |
Total current derivatives | $ | 286 |  | $ | 69 |  | $ | 192 |  | $ | 28 |
Noncurrent derivatives not under cash flow hedge accounting |  |  |  |  |  |  |  |
Commodity | $ | 304 |  | $ | 81 |  | $ | 51 |  | $ | 2 |
Interest rate |  | 99 |  |  | 39 |  |  |  |  |
Foreign currency exchange rate |  | 9 |  |  | 7 |  |  | 9 |  |  | 7 |
Noncurrent derivatives under cash flow hedge accounting |  |  |  |  |  |  |  |
Interest rate |  | 52 |  |  | 71 |  |  | 52 |  |  | 53 |
Total noncurrent derivatives |  | 464 |  |  | 198 |  |  | 112 |  |  | 62 |
Total derivatives | $ | 750 |  | $ | 267 |  | $ | 304 |  | $ | 90 |
At December 31, 2024 |  |  |  |  |  |  |  |
Current derivatives not under cash flow hedge accounting |  |  |  |  |  |  |  |
Commodity | $ | 171 |  | $ | 78 |  | $ | 84 |  | $ | 32 |
Interest rate |  | 101 |  |  | 22 |  |  |  |  |
Foreign currency exchange rate |  | 27 |  |  | 107 |  |  | 27 |  |  | 107 |
Current derivatives under cash flow hedge accounting |  |  |  |  |  |  |  |
Interest rate |  | 137 |  |  | — |  |  | 137 |  |  | — |
Total current derivatives | $ | 436 |  | $ | 207 |  | $ | 248 |  | $ | 139 |
Noncurrent derivatives not under cash flow hedge accounting |  |  |  |  |  |  |  |
Commodity | $ | 323 |  | $ | 45 |  | $ | 31 |  | $ | 1 |
Interest rate |  | 544 |  |  | 175 |  |  |  |  |
Foreign currency exchange rate |  | 3 |  |  | 85 |  |  | 3 |  |  | 85 |
Noncurrent derivatives under cash flow hedge accounting |  |  |  |  |  |  |  |
Interest rate |  | 93 |  |  | — |  |  | 93 |  |  | — |
Total noncurrent derivatives |  | 963 |  |  | 305 |  |  | 127 |  |  | 86 |
Total derivatives | $ | 1,399 |  | $ | 512 |  | $ | 375 |  | $ | 225 |

38

The following tables present the gains and losses on the Companies’ derivatives, as well as where the associated activity is presented in their Consolidated Balance Sheets and Statements of Income.

|  | Dominion Energy |  |  | Virginia Power |
Derivatives in cash flow hedging relationships |  | Amount of Gain (Loss) Recognized in AOCI on Derivatives(1) |  |  | Amount of Gain (Loss) Reclassified from AOCI to Income |  |  | Increase (Decrease) in Derivatives Subject to Regulatory Treatment(2) |  |  | Amount of Gain (Loss) Recognized in AOCI on Derivatives(1) |  |  | Amount of Gain (Loss) Reclassified from AOCI to Income |  |  | Increase (Decrease) in Derivatives Subject to Regulatory Treatment(2) |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Three Months Ended September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative type and location of gains (losses): |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate(3) |  | $ | (5 | ) |  | $ | (10 | ) |  | $ | (29 | ) |  | $ | (2 | ) |  | $ | — |  |  | $ | (29 | )
Total |  | $ | (5 | ) |  | $ | (10 | ) |  | $ | (29 | ) |  | $ | (2 | ) |  | $ | — |  |  | $ | (29 | )
Three Months Ended September 30, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative type and location of gains (losses): |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate(3) |  | $ | (10 | ) |  |  | (11 | ) |  | $ | (110 | ) |  | $ | (10 | ) |  | $ | — |  |  | $ | (109 | )
Total |  | $ | (10 | ) |  | $ | (11 | ) |  | $ | (110 | ) |  | $ | (10 | ) |  | $ | — |  |  | $ | (109 | )
Nine Months Ended September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative type and location of gains (losses): |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate(3) |  | $ | (26 | ) |  | $ | (30 | ) |  | $ | (101 | ) |  | $ | (9 | ) |  | $ | — |  |  | $ | (102 | )
Total |  | $ | (26 | ) |  | $ | (30 | ) |  | $ | (101 | ) |  | $ | (9 | ) |  | $ | — |  |  | $ | (102 | )
Nine Months Ended September 30, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative type and location of gains (losses): |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate(3) |  | $ | 2 |  |  | $ | (33 | ) |  | $ | 20 |  |  | $ | 2 |  |  | $ | — |  |  | $ | 20 |
Total |  | $ | 2 |  |  | $ | (33 | ) |  | $ | 20 |  |  | $ | 2 |  |  | $ | — |  |  | $ | 20 |

(1)
Amounts deferred into AOCI have no associated effect in the Companies’ Consolidated Statements of Income.
(2)
Represents net derivative activity deferred into and amortized out of regulatory assets/liabilities. Amounts deferred into regulatory assets/liabilities have no associated effect in the Companies’ Consolidated Statements of Income.
(3)
Amounts recorded in the Companies’ Consolidated Statements of Income are classified in interest and related charges.

|  | Amount of Gain (Loss) Recognized in Income on Derivatives(1)(2) |
Derivatives not designated as hedging instruments |  | Dominion Energy |  |  | Virginia Power |
|  | Quarter-to-Date |  |  | Year-to-Date |  |  | Quarter-to-Date |  |  | Year-to-Date |
Period Ended September 30, |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative type and location of gains (losses): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue |  | $ | (31 | ) |  | $ | 123 |  |  | $ | (47 | ) |  | $ | 184 |  |  | $ | (8 | ) |  | $ | 31 |  |  | $ | (27 | ) |  | $ | 107 |
Purchased gas |  |  | (1 | ) |  |  | — |  |  |  | (1 | ) |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Electric fuel and other energy-related purchases |  |  | 102 |  |  |  | 2 |  |  |  | 207 |  |  |  | (188 | ) |  |  | 95 |  |  |  | (1 | ) |  |  | 196 |  |  |  | (188 | )
Discontinued operations |  |  | — |  |  |  | (3 | ) |  |  | — |  |  |  | (28 | ) |  |  |  |  |  |  |  |  |  |  |  |
Interest rate: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest and related charges |  |  | 1 |  |  |  | 77 |  |  |  | (9 | ) |  |  | (14 | ) |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ | 71 |  |  | $ | 199 |  |  | $ | 150 |  |  | $ | (46 | ) |  | $ | 87 |  |  | $ | 30 |  |  | $ | 169 |  |  | $ | (81 | )

(1)
Includes derivative activity amortized out of regulatory assets/liabilities. Amounts deferred into regulatory assets/liabilities have no associated effect in the Companies’ Consolidated Statements of Income.
(2)
Excludes amounts related to foreign currency exchange rate derivatives that are deferred to plant under construction within property, plant and equipment and regulatory assets/liabilities that will begin to amortize once the CVOW Commercial Project is placed in service.

39

Note 10. Investments

Equity and Debt Securities

Rabbi Trust Securities

Equity and fixed income securities and cash equivalents in Dominion Energy’s rabbi trusts and classified as trading totaled $173 million and $160 million at September 30, 2025 and December 31, 2024, respectively.

Decommissioning Trust Securities

The Companies hold equity and fixed income securities and cash equivalents, and Dominion Energy also holds insurance contracts, in nuclear decommissioning trust funds to fund future decommissioning costs for its nuclear plants. The Companies’ decommissioning trust funds are summarized below:

|  | Dominion Energy |  |  | Virginia Power |
|  | Amortized Cost |  |  | Total Unrealized Gains |  |  | Total Unrealized Losses |  |  | Allowance for Credit Losses |  |  | Fair Value |  |  | Amortized Cost |  |  | Total Unrealized Gains |  |  | Total Unrealized Losses |  |  |  | Allowance for Credit Losses |  |  | Fair Value |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity securities:(1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. |  | $ | 1,257 |  |  | $ | 4,907 |  |  | $ | (3 | ) |  |  |  |  | $ | 6,161 |  |  | $ | 716 |  |  | $ | 2,546 |  |  | $ | (2 | ) |  |  |  |  |  | $ | 3,260 |
International |  |  | 51 |  |  |  | 128 |  |  |  | — |  |  |  |  |  |  | 179 |  |  |  | 32 |  |  |  | 72 |  |  |  | — |  |  |  |  |  |  |  | 104 |
Fixed income securities:(2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt instruments |  |  | 496 |  |  |  | 13 |  |  |  | (7 | ) |  | $ | — |  |  |  | 502 |  |  |  | 288 |  |  |  | 6 |  |  |  | (6 | ) |  |  | $ | — |  |  |  | 288 |
Government securities |  |  | 1,802 |  |  |  | 25 |  |  |  | (21 | ) |  |  | — |  |  |  | 1,806 |  |  |  | 1,084 |  |  |  | 14 |  |  |  | (14 | ) |  |  |  | — |  |  |  | 1,084 |
Insurance contracts(3) |  |  | 247 |  |  |  | — |  |  |  | — |  |  |  |  |  |  | 247 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents and other(4) |  |  | 50 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 50 |  |  |  | 9 |  |  |  | — |  |  |  | — |  |  |  |  | — |  |  |  | 9 |
Total |  | $ | 3,903 |  |  | $ | 5,073 |  |  | $ | (31 | ) | (5) | $ | — |  |  | $ | 8,945 |  |  | $ | 2,129 |  |  | $ | 2,638 |  |  | $ | (22 | ) | (5) |  | $ | — |  |  | $ | 4,745 |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity securities:(1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. |  | $ | 1,220 |  |  | $ | 4,157 |  |  | $ | (4 | ) |  |  |  |  | $ | 5,373 |  |  | $ | 695 |  |  | $ | 2,155 |  |  | $ | (3 | ) |  |  |  |  |  | $ | 2,847 |
International |  |  | 52 |  |  |  | 111 |  |  |  | — |  |  |  |  |  |  | 163 |  |  |  | 34 |  |  |  | 65 |  |  |  | — |  |  |  |  |  |  |  | 99 |
Fixed income securities:(2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt instruments |  |  | 516 |  |  |  | 6 |  |  |  | (15 | ) |  | $ | — |  |  |  | 507 |  |  |  | 303 |  |  |  | 3 |  |  |  | (12 | ) |  |  | $ | — |  |  |  | 294 |
Government securities |  |  | 1,736 |  |  |  | 7 |  |  |  | (39 | ) |  |  | — |  |  |  | 1,704 |  |  |  | 1,038 |  |  |  | 4 |  |  |  | (18 | ) |  |  |  | — |  |  |  | 1,024 |
Insurance contracts(3) |  |  | 239 |  |  |  | — |  |  |  | — |  |  |  |  |  |  | 239 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents and other(4) |  |  | 65 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 65 |  |  |  | 22 |  |  |  | — |  |  |  | — |  |  |  |  | — |  |  |  | 22 |
Total |  | $ | 3,828 |  |  | $ | 4,281 |  |  | $ | (58 | ) | (5) | $ | — |  |  | $ | 8,051 |  |  | $ | 2,092 |  |  | $ | 2,227 |  |  | $ | (33 | ) | (5) |  | $ | — |  |  | $ | 4,286 |

(1)
Unrealized gains and losses on equity securities are included in other income (expense) and the nuclear decommissioning trust regulatory liability.
(2)
Unrealized gains and losses on fixed income securities are included in AOCI and the nuclear decommissioning trust regulatory liability. Changes in allowance for credit losses are included in other income (expense).
(3)
Includes company owned life insurance contracts measured at cash surrender value.
(4)
Dominion Energy includes pending sales of securities of $17 million and $35 million at September 30, 2025 and December 31, 2024, respectively. Virginia Power includes pending sales of securities of $9 million and $22 million at September 30, 2025, and December 31, 2024, respectively.
(5)
Dominion Energy’s fair value of securities in an unrealized loss position was $609 million and $1.4 billion at September 30, 2025 and December 31, 2024, respectively. Virginia Power’s fair value of securities in an unrealized loss position was $460 million and $796 million at September 30, 2025 and December 31, 2024, respectively.

40

The portion of unrealized gains and losses that relates to equity securities held within Dominion Energy and Virginia Power’s nuclear decommissioning trusts is summarized below:

| Dominion Energy |
| Quarter-to-Date |  | Year-to-Date |
Period Ended September 30, | 2025 |  | 2024 |  | 2025 |  | 2024 |
(millions) |  |  |  |  |  |  |  |
Net gains (losses) recognized during the period | $ | 458 |  | $ | 282 |  | $ | 754 |  | $ | 919 |
Less: Net (gains) losses recognized during the period on securities sold during the period |  | (1 | ) |  | 5 |  |  | 15 |  |  | 1 |
Unrealized gains (losses) recognized during the period on securities still held at period end(1) | $ | 457 |  | $ | 287 |  | $ | 769 |  | $ | 920 |

(1)
Included in other income (expense) and the nuclear decommissioning trust regulatory liabilities.

﻿ | Virginia Power |
| Quarter-to-Date |  | Year-to-Date |
Period Ended September 30, | 2025 |  | 2024 |  | 2025 |  | 2024 |
(millions) |  |  |  |  |  |  |  |
Net gains (losses) recognized during the period | $ | 236 |  | $ | 145 |  | $ | 389 |  | $ | 473 |
Less: Net (gains) losses recognized during the period on securities sold during the period |  | — |  |  | 3 |  |  | 11 |  |  | (2 | )
Unrealized gains (losses) recognized during the period on securities still held at period end(1) | $ | 236 |  | $ | 148 |  | $ | 400 |  | $ | 471 |

(1)
Included in other income (expense) and the nuclear decommissioning trust regulatory liabilities.

The fair value of Dominion Energy and Virginia Power’s fixed income securities with readily determinable fair values held in nuclear decommissioning trust funds at September 30, 2025 by contractual maturity is as follows:

| Dominion Energy |  | Virginia Power |
(millions) |  |  |  |
Due in one year or less | $ | 26 |  | $ | 8 |
Due after one year through five years |  | 517 |  |  | 255 |
Due after five years through ten years |  | 532 |  |  | 276 |
Due after ten years |  | 1,233 |  |  | 833 |
Total | $ | 2,308 |  | $ | 1,372 |

Presented below is selected information regarding Dominion Energy and Virginia Power’s equity and fixed income securities with readily determinable fair values held in nuclear decommissioning trust funds.

| Dominion Energy |
| Quarter-to-Date |  | Year-to-Date |
Period Ended September 30, | 2025 |  | 2024 |  | 2025 |  | 2024 |
(millions) |  |  |  |  |  |  |  |
Proceeds from sales | $ | 869 |  | $ | 651 |  | $ | 2,563 |  | $ | 2,230 |
Realized gains(1) |  | 18 |  |  | 18 |  |  | 36 |  |  | 77 |
Realized losses(1) |  | 15 |  |  | 21 |  |  | 57 |  |  | 93 |

(1)
Includes realized gains and losses recorded to the nuclear decommissioning trust regulatory liabilities.

﻿ | Virginia Power |
| Quarter-to-Date |  | Year-to-Date |
Period Ended September 30, | 2025 |  | 2024 |  | 2025 |  | 2024 |
(millions) |  |  |  |  |  |  |  |
Proceeds from sales | $ | 489 |  | $ | 297 |  | $ | 1,412 |  | $ | 1,370 |
Realized gains(1) |  | 12 |  |  | 13 |  |  | 26 |  |  | 52 |
Realized losses(1) |  | 11 |  |  | 16 |  |  | 40 |  |  | 61 |

(1)
Includes realized gains and losses recorded to the nuclear decommissioning trust regulatory liabilities.

Equity Method Investments

Dominion Energy recorded equity earnings (losses) on its investments of $(8) million and less than $1 million for the nine months ended September 30, 2025 and 2024, respectively, in other income (expense) in its Consolidated Statements of Income. In addition, Dominion Energy recorded equity earnings (losses) of $(2) million and $(11) million for the nine months ended September 30, 2025 and 2024, respectively, in discontinued operations, including amounts primarily related to its investment in Atlantic Coast Pipeline discussed below. Dominion Energy received distributions of $4 million and $138 million for the nine months ended September 30, 2025 and 2024, respectively. Dominion Energy made contributions of $12 million and $6 million for the nine months ended September 30, 2025 and 2024, respectively. At September 30, 2025 and December 31, 2024, the net difference between the carrying amount of Dominion Energy’s investments and its share of underlying equity in net assets was $3 million and $5 million, respectively, which is primarily attributable to capitalized interest.

Atlantic Coast Pipeline

A description of Dominion Energy’s investment in Atlantic Coast Pipeline, including events that led to the cancellation of the Atlantic Coast Pipeline Project in July 2020, is included in Note 9 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Dominion Energy recorded equity losses related to Atlantic Coast Pipeline of less than $1 million for both the three months ended September 30, 2025 and 2024, and $2 million and $12 million for the nine months ended September 30, 2025 and 2024, respectively, in discontinued operations.

At September 30, 2025 and December 31, 2024, Dominion Energy has recorded a liability of $2 million and $7 million, respectively, in other current liabilities in its Consolidated Balance Sheets as a result of its share of equity losses exceeding its investment which reflects Dominion Energy’s obligations on behalf of Atlantic Coast Pipeline related to its AROs.

Dominion Energy expects it could incur additional losses from Atlantic Coast Pipeline as it completes wind-down activities. While Dominion Energy is unable to precisely estimate the amounts to be incurred by Atlantic Coast Pipeline, the portion of such amounts attributable to Dominion Energy is not expected to be material to Dominion Energy’s

41

results of operations, financial position or statement of cash flows.

Dominion Privatization

In February 2024, Dominion Energy received a distribution of $126 million from Dominion Privatization, which was accounted for as a return of an investment.

Note 11. Property, Plant and Equipment

CVOW Commercial Project – Estimated Total Project Cost

As discussed in Note 10 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024, Virginia Power is constructing the CVOW Commercial Project. The 2.6 GW project is expected to be placed in service by the end of 2026 with an estimated total project cost of approximately $11.2 billion, excluding financing costs, that reflects an estimated impact of certain tariffs which became effective during 2025. The Companies’ projected impact of tariffs on expected total project cost is subject to change due to the inherent uncertainty associated with which tariffs, if any, may be in effect and the associated requirements and rates of such tariffs.

The expected total project cost increase of $0.3 billion and $0.5 billion relative to Virginia Power’s August 2025 and February 2025 construction update filings, respectively, with the Virginia Commission reflects current projections of tariffs on equipment expected to be delivered from March 2025 through the end of 2025 that originates from Mexico, Canada, a European Union member or other applicable countries and on equipment expected to be delivered from March 2025 through the end of 2026 that contains steel. The actual tariffs to be incurred are dependent upon the tariff requirements and rates, if any, at the time of delivery of the specific component. If the current tariffs were to remain in effect through the end of 2026, the expected project costs for offshore wind and onshore electrical interconnection equipment could increase by up to approximately $0.2 billion.

As a result of the revised total project cost estimate and cost sharing mechanism associated with tariffs enacted by September 30, 2025, for the three and nine months ended September 30, 2025 Virginia Power recorded a charge for costs not expected to be recovered from customers of $128 million and $224 million, respectively, within impairment of assets and other charges, which includes $64 million and $112 million, respectively, attributable to noncontrolling interests, and an associated income tax benefit of $16 million and $28 million, respectively, all reflected in the Corporate and Other segment, in the Companies’ Consolidated Statements of Income. See Note 10 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024 for more information on the cost sharing mechanism in the Virginia Commission’s December 2022 order and Stonepeak’s 50% noncontrolling interest in the CVOW Commercial Project.

The estimated total project cost above reflects the Companies’ best estimate of the remaining construction costs, including contingency of approximately 7% on such remaining amounts. Such estimate could potentially change for items, certain of which are beyond the Companies’ control, including but not limited to final network upgrade costs allocated by PJM, fuel for transportation and installation, the impact of applicable tariffs including any potential impact of pending Section 232 investigations and litigation before the U.S. Supreme Court, costs to maintain necessary permits, approvals and authorizations, ability of key suppliers and contractors to timely satisfy their obligations under existing contracts, marine wildlife and/or any severe weather events. Any additional increase in such costs in excess of the contingency included in the estimated total project cost would be subject to the cost sharing mechanisms discussed above and could have a material impact on the Companies’ future financial condition, results of operations and/or cash flows.

Sale of a Corporate Office Building

In the second quarter of 2024, Dominion Energy recorded a charge of $17 million ($12 million after-tax) in impairment of assets and other charges in its Consolidated Statements of Income to adjust a corporate office building down to its estimated fair value, using a market approach, of $23 million. The valuation is considered a Level 3 fair value measurement as it is based on unobservable inputs due to limited comparable market activity. The corporate office building is reflected in the Corporate and Other segment and was sold in December 2024 as discussed in Note 10 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Nonregulated Renewable Natural Gas Facilities

Dominion Energy recorded impairment charges of $33 million ($25 million after-tax) and $27 million ($21 million after-tax) in the second and third quarters of 2024, respectively, in impairment of assets and other charges in the Consolidated Statements of Income to write down the long-lived assets of certain nonregulated renewable natural gas facilities under development to their estimated fair values which were each less than $1 million. The fair values were estimated using an income approach. The valuations are considered Level 3 fair value measurements due to the use of significant judgmental and unobservable inputs, including projected timing and amount of future cash flows and discount rates reflecting risks inherent in future cash flows and market prices.

42

Note 12. Regulatory Assets and Liabilities

Regulatory assets and liabilities include the following:

| Dominion Energy |  |  | Virginia Power |
| September 30, 2025 |  | December 31, 2024 |  |  | September 30, 2025 |  | December 31, 2024 |
(millions) |  |  |  |  |  |  |  |  |
Regulatory assets: |  |  |  |  |  |  |  |  |
Deferred cost of fuel used in electric generation(1) | $ | 276 |  | $ | 38 |  |  | $ | 229 |  | $ | 3 |
Securitized cost of fuel used in electric generation(2) |  | 118 |  |  | 124 |  |  |  | 118 |  |  | 124 |
Deferred rider costs for Virginia electric utility(3) |  | 548 |  |  | 293 |  |  |  | 548 |  |  | 293 |
Ash pond and landfill closure costs(4) |  | 94 |  |  | 108 |  |  |  | 94 |  |  | 108 |
Deferred nuclear refueling outage costs(5) |  | 67 |  |  | 97 |  |  |  | 67 |  |  | 80 |
NND Project costs(6) |  | 138 |  |  | 138 |  |  |  |  |  |
Derivatives(7) |  | 10 |  |  | 8 |  |  |  | 7 |  |  | 6 |
Other |  | 179 |  |  | 186 |  |  |  | 77 |  |  | 83 |
Regulatory assets-current |  | 1,430 |  |  | 992 |  |  |  | 1,140 |  |  | 697 |
Unrecognized pension and other postretirement benefit costs(8) |  | 481 |  |  | 486 |  |  |  | — |  | — |
Deferred rider costs for Virginia electric utility(3) |  | 566 |  |  | 651 |  |  |  | 566 |  |  | 651 |
Interest rate hedges(9) |  | 166 |  |  | 167 |  |  |  | — |  | — |
AROs and related funding(10) |  | 389 |  |  | 387 |  |  |  |  |  |
NND Project costs(6) |  | 1,707 |  |  | 1,811 |  |  |  |  |  |
CCR remediation, ash pond and landfill closure costs(4) |  | 2,942 |  |  | 2,898 |  |  |  | 2,590 |  |  | 2,560 |
Deferred cost of fuel used in electric generation(1) |  | 81 |  | — |  |  |  | 81 |  | — |
Securitized cost of fuel used in electric generation(2) |  | 912 |  |  | 1,040 |  |  |  | 912 |  |  | 1,040 |
Derivatives(7) |  | 33 |  |  | 182 |  |  |  | — |  |  | 148 |
Other |  | 735 |  |  | 666 |  |  |  | 134 |  |  | 138 |
Regulatory assets-noncurrent |  | 8,012 |  |  | 8,288 |  |  |  | 4,283 |  |  | 4,537 |
Total regulatory assets | $ | 9,442 |  | $ | 9,280 |  |  | $ | 5,423 |  | $ | 5,234 |
Regulatory liabilities: |  |  |  |  |  |  |  |  |
Deferred cost of fuel used in electric generation(1) |  | 9 |  |  | 92 |  |  |  | 9 |  |  | 92 |
Provision for future cost of removal and AROs(11) |  | 119 |  |  | 119 |  |  |  | 119 |  |  | 119 |
Reserve for rate credits to electric utility customers(12) |  | 45 |  |  | 73 |  |  |  | — |  | — |
Income taxes refundable through future rates(13) |  | 90 |  |  | 88 |  |  |  | 64 |  |  | 64 |
Monetization of guarantee settlement(14) |  | 67 |  |  | 67 |  |  |  |  |  |
Derivatives(7) |  | 131 |  |  | 51 |  |  |  | 104 |  |  | 30 |
Other |  | 72 |  |  | 89 |  |  |  | 62 |  |  | 80 |
Regulatory liabilities-current |  | 533 |  |  | 579 |  |  |  | 358 |  |  | 385 |
Income taxes refundable through future rates(13) |  | 2,901 |  |  | 2,988 |  |  |  | 2,082 |  |  | 2,168 |
Provision for future cost of removal and AROs(11) |  | 1,926 |  |  | 1,809 |  |  |  | 1,314 |  |  | 1,210 |
Nuclear decommissioning trust(15) |  | 2,398 |  |  | 2,115 |  |  |  | 2,398 |  |  | 2,115 |
Monetization of guarantee settlement(14) |  | 518 |  |  | 568 |  |  |  |  |  |
Interest rate hedges(9) |  | 295 |  |  | 406 |  |  |  | 295 |  |  | 406 |
Reserve for rate credits to electric utility customers(12) |  | 137 |  |  | 161 |  |  |  | — |  | — |
Overrecovered other postretirement benefit costs(16) |  | 203 |  |  | 183 |  |  |  |  |  |
Derivatives(7) |  | 252 |  |  | 248 |  |  |  | 61 |  |  | 25 |
Other |  | 138 |  |  | 283 |  |  |  | 86 |  |  | 215 |
Regulatory liabilities-noncurrent |  | 8,768 |  |  | 8,761 |  |  |  | 6,236 |  |  | 6,139 |
Total regulatory liabilities | $ | 9,301 |  | $ | 9,340 |  |  | $ | 6,594 |  | $ | 6,524 |

(1)
Reflects deferred fuel expenses as well as, beginning in June 2025, deferred electric capacity expenses for the Virginia and North Carolina jurisdictions of Virginia Power’s electric generation operations. Additionally, Dominion Energy includes deferred fuel expenses for the South Carolina jurisdiction of its electric generation operations.
(2)
Reflects under-recovered fuel costs for Virginia Power’s Virginia service territory securitized through the issuance of bonds by VPFS in February 2024, which are being amortized into electric fuel and other energy-related purchases. See Notes 13 and 18 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024 for additional information.
(3)
Reflects deferrals under Virginia Power’s electric transmission FERC formula rate and the deferral of costs associated with certain current and prospective rider projects.
(4)
Primarily reflects legislation in Virginia which requires any CCR asset located at certain Virginia Power stations to be closed by removing the CCR to an approved landfill or through beneficial reuse. These deferred costs are expected to be collected over a period between 15 and 18 years commencing December 2021 through Rider CCR. Virginia Power is entitled to collect carrying costs on uncollected expenditures once expenditures have been made. In addition, the balance reflects amounts related to the EPA’s May 2024 final rule concerning CCR as discussed in Note 14 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.
(5)
Primarily reflects deferred operation and maintenance costs at Virginia Power incurred in connection with the refueling of any nuclear-powered generating plant as required by Virginia legislation. Virginia Power deferred costs will be amortized over the refueling cycle, not to exceed 18 months.
(6)
Reflects expenditures by DESC associated with the NND Project, which pursuant to the SCANA Merger Approval Order, will be recovered from DESC electric service customers over a 20-year period ending in 2039.

43

(7)
Represents changes in the fair value of derivatives, excluding separately presented interest rate hedges, that following settlement are expected to be recovered from or refunded to customers.
(8)
Represents unrecognized pension and other postretirement employee benefit costs expected to be recovered or refunded through future rates generally over the expected remaining service period of plan participants by certain of Dominion Energy’s rate-regulated subsidiaries.
(9)
Reflects interest rate hedges recoverable from or refundable to customers. Certain of these instruments are settled and any related payments are being amortized into interest expense over the life of the related debt, which has a weighted-average useful life of approximately 24 years for both Dominion Energy and Virginia Power as of September 30, 2025.
(10)
Represents uncollected costs, including deferred depreciation and accretion expense, related to legal obligations associated with the future retirement of generation, transmission and distribution properties. The AROs primarily relate to DESC’s electric generating facilities, including Summer, and are expected to be recovered over the related property lives and periods of decommissioning which may range up to approximately 105 years.
(11)
Rates charged to customers by Dominion Energy and Virginia Power’s regulated businesses include a provision for the cost of future activities to remove assets that are expected to be incurred at the time of retirement.
(12)
Reflects amounts previously collected from retail electric customers of DESC for the NND Project to be credited over an estimated 11-year period effective February 2019, in connection with the SCANA Merger Approval Order.
(13)
Amounts recorded to pass the effect of reduced income taxes from the 2017 Tax Reform Act to customers in future periods, which will primarily reverse at the weighted-average tax rate that was used to build the reserves over the remaining book life of the property, net of amounts to be recovered through future rates to pay income taxes that become payable when rate revenue is provided to recover AFUDC equity.
(14)
Reflects amounts to be refunded to DESC electric service customers over a 20-year period ending in 2039 associated with the monetization of a bankruptcy settlement agreement.
(15)
Primarily reflects a regulatory liability representing amounts collected from Virginia jurisdictional customers and placed in external trusts (including income, losses, changes in fair value and taxes thereon, as applicable) for the future decommissioning of Virginia Power’s utility nuclear generation stations, in excess of the related AROs.
(16)
Reflects a regulatory liability for the collection of postretirement benefit costs allowed in rates in excess of expense incurred.

At September 30, 2025, Dominion Energy and Virginia Power regulatory assets include $5.9 billion and $4.2 billion, respectively, on which they do not expect to earn a return during the applicable recovery period. With the exception of certain items discussed above, the majority of these expenditures are expected to be recovered within the next two years.

44

Note 13. Regulatory Matters

Regulatory Matters Involving Potential Loss Contingencies

As a result of issues generated in the ordinary course of business, the Companies are involved in various regulatory matters. Certain regulatory matters may ultimately result in a loss; however, as such matters are in an initial procedural phase, involve uncertainty as to the outcome of pending reviews or orders, and/or involve significant factual issues that need to be resolved, it is not possible for the Companies to estimate a range of possible loss. For regulatory matters that the Companies cannot estimate, a statement to this effect is made in the description of the matter. Other matters may have progressed sufficiently through the regulatory process such that the Companies are able to estimate a range of possible loss. For regulatory matters that the Companies are able to reasonably estimate a range of possible losses, an estimated range of possible loss is provided, in excess of the accrued liability (if any) for such matters. Any estimated range is based on currently available information, involves elements of judgment and significant uncertainties and may not represent the Companies’ maximum possible loss exposure. The circumstances of such regulatory matters will change from time to time and actual results may vary significantly from the current estimate. For current matters not specifically reported below, management does not anticipate that the outcome from such matters would have a material effect on the Companies’ financial position, liquidity or results of operations.

Other Regulatory Matters

Other than the following matters, there have been no significant developments regarding key legislation affecting operations or key regulatory developments disclosed in Note 13 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Virginia 2020 Legislation - Recent Development

Energy Efficiency

The VCEA includes an energy efficiency target of 5% energy savings, as measured from a 2019 baseline, through verifiable energy efficiency programs by the end of 2025 with future targets to be set by the Virginia Commission. Virginia Power has the opportunity to offset the lost revenues with margins on program spend if certain targets are achieved and can also seek recovery of the lost revenues associated with energy efficiency programs if such reductions are found to have caused Virginia Power to earn more than 50 basis points below a fair rate of return on its rates for generation and distribution services. In February 2025, the Virginia Commission issued its order establishing energy savings targets for Virginia Power of 3.00% for 2026, 4.00% for 2027 and 5.00% for 2028, as measured from a 2019 baseline.

Virginia Regulation - Recent Developments

2025 Biennial Review

In March 2025, Virginia Power filed its base rate case and accompanying schedules in support of the 2025 Biennial Review in accordance with legislation enacted in Virginia in April 2023. Virginia Power’s earnings test analysis, as filed, demonstrated it earned a combined ROE of 7.77% on its generation and distribution services for the test period, compared to the ROE of 9.70% authorized by the Virginia Commission. Accordingly, no regulatory liability for Virginia Power ratepayer credits to customers has been recorded at September 30, 2025. Virginia Power proposed a base rate increase of $822 million effective January 2026 with an incremental base rate increase of $345 million effective January 2027. Virginia Power submitted an update in August 2025 for a proposed base rate increase of $706 million effective January 2026 with an incremental base rate increase of $256 million effective January 2027 to reflect FERC’s approval of a price cap and floor for certain PJM capacity auctions. Alternatively, Virginia Power has proposed to include purchased electric capacity expenses as a component of fuel expenses instead of base rates. If the move is approved, Virginia Power’s proposed base rate increase would be $458 million effective January 2026 with an incremental base rate increase of $173 million effective January 2027. The base rate proposals reflect necessary investments in assets and operating resources, including the impact of significant inflationary pressures on labor, materials and equipment since the 2023 Biennial Review, required to reliably serve a growing customer base. The proposed base rates reflect an ROE of 10.40% utilizing a common equity capitalization to total capitalization ratio of 52.10%. The ROE authorized by the Virginia Commission will be applied to Virginia Power’s riders prospectively and will also be utilized to measure base rate earnings for the 2027 Biennial Review. This matter is pending.

Virginia Fuel Expenses

In March 2025, Virginia Power filed its annual fuel factor with the Virginia Commission to recover an estimated $2.6 billion in Virginia jurisdictional projected fuel expense for the rate year beginning July 1, 2025 and a projected $205 million under-recovered balance as of June 30, 2025. Virginia Power has proposed to include purchased electric capacity expenses as a component of fuel expenses, consistent with its filing in the 2025 Biennial Review. In addition to the projected energy-related fuel expense, Virginia Power projects $120 million of purchased electric capacity expense to be incurred with PJM from January 1, 2026 to June 30, 2026. Virginia Power’s proposed fuel rate, including purchased electric capacity expense, represents a fuel revenue increase of $860 million when applied to projected kilowatt-hour sales for the rate year beginning July 1, 2025. In May 2025, the Virginia Commission ordered that Virginia Power’s proposed total fuel factor rate, excluding the purchased electric capacity expense component, be placed into effect on an interim basis beginning July 1, 2025. This matter is pending.

Virginia Power Equity Application

In April 2025, Virginia Power requested approval from the Virginia Commission to issue and sell to Dominion Energy up to $3.5 billion of authorized but unissued shares of its common stock, no par value, through the end of 2025 to

45

maintain adequate credit metrics and efficient access to capital markets while funding necessary capital expenditures. In June 2025, the Virginia Commission approved the request.

Renewable Generation Projects

In October 2024, Virginia Power filed a petition with the Virginia Commission for CPCNs to construct or acquire and operate two utility-scale projects totaling approximately 208 MW of solar generation as part of its efforts to meet the renewable generation development targets under the VCEA. The projects, as of October 2024, are expected to cost approximately $605 million in the aggregate, excluding financing costs, and be placed into service between 2026 and 2028. In April 2025, the Virginia Commission approved the petition.

In October 2025, Virginia Power filed a petition with the Virginia Commission for CPCNs to construct or acquire and operate six utility-scale projects totaling approximately 84 5 MW of solar generation and two energy storage projects totaling approximately 155 MW as part of its efforts to meet the renewable generation development targets under the VCEA. The projects include Bedford and Pumpkinseed, which were constructed and have been operated as non-jurisdictional generation facilities. The remaining projects are expected to, as of October 2025, cost approximately $2.9 billion, excluding financing costs, and be placed into service between 2028 and 2030. This matter is pending.

GTSA Filing

In March 2025, Virginia Power filed a petition with the Virginia Commission for approval of Phase IIIB, covering 2024 through 2026, of its plan for electric distribution grid transformation projects as authorized by the GTSA. The plan requests approval for mainfeeder hardening work that Virginia Power undertook o n three mainfeeders in 2024, proposes to continue the mainfeeder hardening project on 20 additional feeders in 2025 through 2026, proposes the continued implementation of a new outage management system previously approved by the Virginia Commission and requests approval of one ne w project, a remote sensing, image management and analytical program. For Phase IIIB, the total proposed capital investment is $278 million and the proposed operations and maintenance investment is $5 million. In September 2025, the Virginia Commission approved the petition.

Chesterfield Energy Reliability Center

In March 2025, Virginia Power filed a petition with the Virginia Commission for a CPCN to construct and operate the Chesterfield Energy Reliability Center. The project, if approved, is expected to cost approximately $1.5 billion in the aggregate, excluding financing costs, have a generating capacity of 944 MW and be placed into service in 2029. This matter is pending.

46

Riders

Other than the following matters, there have been no significant developments regarding the significant riders associated with various Virginia Power projects disclosed in Note 13 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Rider Name |  | Application Date |  | Approval Date |  | Rate Year Beginning |  | Total Revenue Requirement (millions)(1) |  |  | Increase (Decrease) from Previous (millions) |
Rider CCR(2) |  | April 2025 |  | Pending |  | January 2026 |  | $ | 166 |  |  | $ | 63 |
Rider CE(3) |  | October 2024 |  | April 2025 |  | May 2025 |  |  | 182 |  |  |  | 49 |
Rider CE(4) |  | October 2025 |  | Pending |  | May 2026 |  |  | 325 |  |  |  | 143 |
Rider DIST(5) |  | August 2024 |  | May 2025 |  | June 2025 |  |  | 267 |  |  | N/A |
Rider DIST(6) |  | August 2025 |  | Pending |  | June 2026 |  |  | 333 |  |  |  | 66 |
Rider E |  | January 2025 |  | September 2025 |  | November 2025 |  |  | 37 |  |  |  | (35 | )
Rider GEN(7) |  | June 2024 |  | February 2025 |  | April 2025 |  |  | 438 |  |  | N/A |
Rider GEN |  | June 2024 |  | February 2025 |  | April 2026 |  |  | 311 |  |  |  | (127 | )
Rider OSW(8) |  | November 2024 |  | August 2025 |  | September 2025 |  |  | 639 |  |  |  | 153 |
Rider OSW |  | October 2025 |  | Pending |  | September 2026 |  |  | 665 |  |  |  | 26 |
Rider RPS |  | December 2024 |  | August 2025 |  | September 2025 |  |  | 609 |  |  |  | 251 |
Rider SNA(9) |  | October 2024 |  | July 2025 |  | September 2025 |  |  | 207 |  |  |  | 138 |
Rider SNA |  | October 2025 |  | Pending |  | September 2026 |  |  | 233 |  |  |  | 26 |
Rider T1(10) |  | May 2025 |  | August 2025 |  | September 2025 |  |  | 1,343 |  |  |  | 173 |
DSM Riders(11) |  | December 2024 |  | August 2025 |  | September 2025 |  |  | 96 |  |  |  | 10 |

(1)
In addition, Virginia Power has a rider associated with another project with a total annual revenue requirement of $17 million and a pending application associated with the Chesterfield Energy Reliability Center described above, which if approved would result in an annual revenue requirement increase of $36 million.
(2)
In connection with this application, Virginia Power also requests to extend existing rates for Rider CCR by one month through December 2025.
(3)
Associated with two solar generation projects, two small-scale solar projects and 19 purchased power agreements in addition to previously approved Rider CE projects.
(4)
Associated with six solar generation projects, including Bedford and Pumpkinseed (non-jurisdictional generation facilities with an aggregate recorded cost of $251 million at September 30, 2025), two energy storage projects, three small-scale solar projects, 10 purchased power agreements and certain costs associated with expanding solar and storage facilities in addition to previously approved Rider CE projects.
(5)
Rider DIST includes $100 million in total revenue requirement for certain previously approved electric distribution grid transformation projects and $167 million for previously approved phases and proposed phase eight of certain new underground distribution facilities. Rider DIST also results in the consolidation of, and ceases the separate collection of rates under, Riders GT and U effective June 1, 2025.
(6)
This application includes $120 million in total revenue requirement for certain previously approved electric distribution grid transformation projects, $178 million for previously approved phases and proposed phase nine of certain new underground distribution facilities and $35 million for certain previously approved rural broadband capacity projects, including $25 million being collected under a rider associated with rural broadband capacity projects. If approved, the rider associated with rural broadband capacity projects would be consolidated into Rider DIST and separate collection of rates under the rural broadband rider would cease effective June 1, 2026.
(7)
Rider GEN includes $348 million in total revenue requirement related to the consolidation of Riders BW, GV and four other riders associated with generation facilities, ceasing the separate collection of rates under these riders effective April 1, 2025 and the extension of existing rates for Rider BW through March 2025. In addition, Virginia Power also received approval to recover costs associated with the Virginia LNG Storage Facility through Rider GEN described in Note 13 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.
(8)
The Virginia Commission also approved the establishment of a decommissioning trust fund associated with the CVOW Commercial Project. As a result, the applicable amount included within the revenue requirement for Rider OSW will be allocated for such purposes.
(9)
The Virginia Commission also approved Virginia Power’s request for cost recovery of approximately $1.7 billion through Rider SNA for the second phase of the nuclear life extension program which includes investments for calendar years 2025 through 2027.
(10)
Consists of $561 million for the transmission component of Virginia Power’s base rates and $782 million for Rider T1.
(11)
Associated with three redesigned energy efficiency programs and one new and two redesigned demand response programs with a $218 million cost cap, with the ability to exceed the cost cap by no more than 15%.

47

Electric Transmission Projects

Other than the following matters, there have been no significant developments regarding the significant Virginia Power electric transmission projects disclosed in Note 13 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Description and Location of Project |  | Application Date |  | Approval Date |  | Type of Line |  | Miles of Lines |  | Cost Estimate (millions)(1) |
Construct new Aspen and Golden substations, transmission lines and related projects in Loudoun County, Virginia |  | March 2024 |  | February 2025(2) |  | 500- 230 kV |  | 10 |  | $ | 705 |
Construct new Apollo-Twin Creek transmission lines, new substations and related projects in Loudoun County, Virginia |  | March 2024 |  | February 2025(2) |  | 230 kV |  | 2 |  |  | 285 |
Rebuild and construct new Fentress-Yadkin transmission lines and related projects in the City of Chesapeake, Virginia |  | June 2024 |  | February 2025 |  | 500 kV |  | 14 |  |  | 205 |
Partial rebuild, reconductor and construct new Network Takeoff transmission lines and related projects in the Counties of Fairfax and Loudoun, Virginia |  | July 2024 |  | March 2025 |  | 230 kV |  | 6 |  |  | 170 |
Rebuild Aquia Harbour-Possum Point transmission lines and related projects in the Counties of Stafford and Prince William and the City of Fredericksburg, Virginia |  | August 2024 |  | March 2025 |  | 500- 230 kV |  | 32 |  |  | 210 |
Partial rebuild, reconductor and construct new New Post transmission lines and related projects in the Counties of Caroline and Spotsylvania, Virginia |  | August 2024 |  | May 2025 |  | 230 kV |  | 38 |  |  | 120 |
Construct new Centreport transmission line, substation and related projects in Stafford County, Virginia |  | September 2024 |  | June 2025 |  | 230 kV |  | 3 |  |  | 55 |
Partial rebuild and construct new Meadowville transmission lines, substations and related projects in Chesterfield County, Virginia |  | October 2024 |  | June 2025 |  | 230 kV |  | 11 |  |  | 190 |
Construct new Carmel Church and Ruther Glen transmission lines, substations and related projects in Caroline County, Virginia |  | December 2024 |  | September 2025 |  | 230 kV |  | 7 |  |  | 85 |
Construct new Nebula transmission lines, substation and related projects in Mecklenburg County, Virginia |  | January 2025 |  | October 2025 |  | 230 kV |  | 15 |  |  | 130 |
Construct new Technology Boulevard transmission lines, substation and related projects in Henrico County, Virginia |  | March 2025 |  | Pending |  | 230 kV |  | 5 |  |  | 60 |
Construct new Hornbaker transmission lines, switching station and related projects in Prince William County, Virginia |  | March 2025 |  | Pending |  | 230 kV |  | 5 |  |  | 95 |
Construct new Golden-Mars transmission lines and related projects in Loudoun County, Virginia |  | March 2025 |  | Pending |  | 500- 230 kV |  | 11 |  |  | 525 |
Construct new Duval-Midlothian transmission lines, substation and related projects in Chesterfield County, Virginia |  | April 2025 |  | Pending |  | 230 kV |  | 7 |  |  | 125 |
Rebuild Chickahominy-Elmont transmission line, new future transmission line and related projects in the Counties of Charles City, Henrico and Hanover, Virginia |  | May 2025 |  | Pending |  | 500- 230 kV |  | 28 |  |  | 190 |
Rebuild Septa-Yadkin transmission line, partial rebuild of Suffolk-Thrasher transmission line and related projects in Isle of Wight County and the Cities of Chesapeake and Suffolk, Virginia |  | June 2025 |  | Pending |  | 500- 230 kV |  | 33 |  |  | 250 |
Partial rebuild Chesterfield-Lanexa transmission lines in the Counties of Henrico, Charles City and New Kent, Virginia |  | September 2025 |  | Pending |  | 230- 115 kV |  | 58 |  |  | 150 |
Rebuild Charlottesville-Dooms transmission lines in the Counties of Albemarle and Augusta and the City of Charlottesville, Virginia |  | October 2025 |  | Pending |  | 230 kV |  | 22 |  |  | 125 |

(1)
Represents the cost estimate included in the application except as updated in the approval if applicable. In addition, Virginia Power had various other transmission projects approved during 2025 with aggregate cost estimates of approximately $65 million.
(2)
The final order of the Virginia Commission has been appealed to the Supreme Court of Virginia. This matter is pending.

Virginia Regulation - Key Development affecting 2024

2023 Biennial Review

In February 2024, the Virginia Commission issued its order in the 2023 Biennial Review. In connection with the order, Virginia Power recorded a net benefit of $17 million ($12 million after-tax) in the first quarter of 2024 within impairment of assets and other charges in its Consolidated Statements of Income for a regulatory asset for previously unrecovered severe weather event costs, which were amortized by the end of 2024.

North Carolina Regulation

Virginia Power Fuel Filing

In August 2025, Virginia Power submitted its annual filing to the North Carolina Commission to adjust the fuel component of its electric rates. In October 2025, Virginia Power subsequently updated its annual filing following a change in law which provides for recovery of purchased electric capacity expenses as a component of fuel. Virginia Power proposed a total $49 million increase to the fuel component of its electric rates for the rate year beginning February 1, 2026. This matter is pending.

South Carolina Regulation - Recent Developments

Cost of Fuel

DESC’s retail electric rates include a cost of fuel component approved by the South Carolina Commission which may be adjusted periodically to reflect changes in the price of fuel purchased by DESC. In February 2025, DESC filed with the South Carolina Commission a proposal to increase the total fuel cost component of retail electric rates. DESC’s proposed adjustment is designed to recover DESC’s current base fuel costs, including its existing under-collected balance, over the 12-month period beginning with the first billing cycle of May

48

2025. In addition, DESC proposed an increase to its variable environmental and avoided capacity cost component. The net effect is a proposed annual increase of $154 million. In March 2025, DESC and the South Carolina Office of Regulatory Staff filed a settlement agreement with the South Carolina Commission for approval to make certain adjustments to the February 2025 filing that would result in an inconsequential change to the proposed annual increase. In April 2025, the South Carolina Commission approved the settlement agreement, with rates effective with the first billing cycle of May 2025.

Electric DSM Programs

DESC has approval for a DSM rider through which it recovers expenditures related to its DSM programs. In January 2025, DESC filed an application with the South Carolina Commission seeking approval to recover $46 million of costs and net lost revenues associated with these programs, along with an incentive to invest in such programs. DESC requested that rates be effective with the first billing cycle of May 2025. In April 2025, the South Carolina Commission approved the request, effective with the first billing cycle of May 2025.

Electric - Transmission Project

In December 2024, DESC filed an application with the South Carolina Commission requesting approval of a CPCN to construct and operate the Ritter-Yemassee Transmission Line #2, comprised of a 17-mile 230 kV transmission line and associated facilities in Colleton and Hampton Counties, South Carolina with an estimated total project cost of $55 million. In April 2025, the South Carolina Commission approved the application.

Natural Gas Rates

In June 2025, DESC filed with the South Carolina Commission its monitoring report for the 12-month period ended March 31, 2025 with a total revenue requirement of $596 million. This revenue requirement represents a $17 million base rate increase under the terms of the Natural Gas Rate Stabilization Act effective with the first billing cycle of November 2025. In September 2025, the South Carolina Commission approved a total revenue requirement of $594 million, representing a $15 million base rate increase after certain adjustments, effective with the first billing cycle of November 2025.

South Carolina Regulation - Key Development affecting 2024

Electric Base Rate Case

In the third quarter of 2024, Dominion Energy recorded a charge of $58 million ($44 million after tax) (reflected within the Corporate and Other segment), including $50 million to write down certain materials and supplies inventory presented within impairment of assets and other charges, in connection with the electric base rate case in South Carolina as discussed in Note 13 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Note 14. Leases

Other than the items discussed below, there have been no significant changes regarding the Companies’ leases as described in Note 15 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

In September 2025, Virginia Power recorded a right-of-use asset and offsetting lease obligation of $228 million upon commencement of an operating lease with an affiliated entity for the use of a Jones Act compliant offshore wind installation vessel. For the three and nine months ended September 30, 2025, Virginia Power capitalized $11 million of such affiliated lease cost associated with the CVOW Commercial Project.

Dominion Energy’s Consolidated Statements of Income include $6 million and $15 million for the three and nine months ended September 30, 2025, respectively, and $6 million and $15 million for the three and nine months ended September 30, 2024, respectively, of rental revenue included in operating revenue. Dominion Energy’s Consolidated Statements of Income include $4 million and $9 million for the three and nine months ended September 30, 2025, respectively, and $3 million and $6 million for the three and nine months ended September 30, 2024, respectively, of depreciation expense included in depreciation and amortization related to facilities subject to power purchase agreements under which Dominion Energy is the lessor.

In April 2024, Dominion Energy agreed to pay $47 million in connection with a settlement of an agreement related to the offshore wind installation vessel under development and recorded a charge of $47 million ($35 million after-tax) in the first quarter of 2024 within impairments and other charges in its Consolidated Statements of Income.

Offshore Wind Vessel Leasing Arrangement

In December 2020, Dominion Energy signed an agreement (most recently amended in August 2024) with a lessor to complete construction of and lease a Jones Act compliant offshore wind installation vessel. This vessel is designed to handle current turbine technologies as well as next generation turbines. The lessor provided equity and obtained financing commitments from debt investors, totaling $715 million, which funded project costs. In September 2025, the vessel was delivered and the five-year lease term commenced.

Upon commencement, the lease for the offshore wind vessel was classified as a finance lease. At the end of the initial lease term, Dominion Energy can (i) extend the term of the lease for an additional term, subject to the approval of the participants, at current market terms, (ii) purchase the property for an amount equal to the outstanding project costs or (iii) subject to certain terms and conditions, sell the property on behalf of the lessor to a third party using commercially reasonable efforts to obtain the highest cash purchase price for the property. If the project is sold and the proceeds from the sale are insufficient to repay the investors for the outstanding project costs, Dominion Energy may be required to make a

49

payment to the lessor for the difference between the outstanding project costs and sale proceeds. No end-of-term options were deemed reasonably certain of exercise at commencement date. Dominion Energy is considered the owner of the leased property for tax purposes, and as a result, is entitled to tax deductions for depreciation and interest expense. At commencement, Dominion Energy recorded a right-of-use asset and offsetting lease obligation of $214 million, representing the present value of consideration over the five-year term at the rate implicit in the lease.

Note 15. Variable Interest Entities

There have been no significant changes regarding the entities the Companies consider VIEs as described in Note 16 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Virginia Power

Virginia Power purchased shared services from DES, an affiliated VIE, of $145 million and $125 million for the three months ended September 30, 2025 and 2024, respectively, and $442 million and $368 million for the nine months ended September 30, 2025 and 2024, respectively. Virginia Power’s Consolidated Balance Sheets include amounts due to DES of $43 million and $38 million at September 30, 2025 and December 31, 2024, respectively, recorded in payables to affiliates.

As described in Note 18 of the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024, Virginia Power formed VPFS in October 2023, a wholly-owned special purpose subsidiary which is considered to be a VIE, for the sole purpose of securitizing certain of Virginia Power’s under-recovered deferred fuel balance through the issuance of senior secured deferred fuel cost bonds. The Companies’ Consolidated Balance Sheets included balances for VPFS as follows:

|  | September 30, 2025 |  |  | December 31, 2024 |
(millions) |  |  |  |  |  |
Assets |  |  |  |  |  |
Prepayments(1) |  | $ | — |  |  | $ | — |
Regulatory assets-current |  |  | 118 |  |  |  | 124 |
Other current assets(2) |  |  | 115 |  |  |  | 41 |
Regulatory assets-noncurrent |  |  | 912 |  |  |  | 1,040 |
Total assets |  | $ | 1,145 |  |  | $ | 1,205 |
Liabilities |  |  |  |  |  |
Securities due within one year |  | $ | 167 |  |  | $ | 163 |
Accrued interest, payroll and taxes |  |  | 25 |  |  |  | 10 |
Securitization bonds |  |  | 969 |  |  |  | 1,054 |
Total liabilities |  | $ | 1,161 |  |  | $ | 1,227 |

(1)
Prepayments are presented in other current assets in Virginia Power’s Consolidated Balance Sheets.
(2)
See Note 2 for additional information about restricted cash and equivalents at VPFS.

As described in Note 10 of the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024, in October 2024 Virginia Power completed the sale of a 50% noncontrolling interest in the CVOW Commercial Project to Stonepeak through the sale of an interest in OSWP, which is considered to be a VIE. The Companies’ Consolidated Balance Sheets included balances for OSWP as follows:

|  | September 30, 2025 |  |  | December 31, 2024 |
(millions) |  |  |  |  |  |
Assets |  |  |  |  |  |
Cash and cash equivalents |  | $ | 192 |  |  | $ | 70 |
Customer receivables |  |  | — |  |  |  | — |
Prepayments(1) |  |  | — |  |  |  | 10 |
Regulatory assets-current |  |  | 21 |  |  |  | 6 |
Property, plant and equipment |  |  | 7,934 |  |  |  | 5,844 |
Regulatory assets-noncurrent |  |  | 118 |  |  |  | 52 |
Other deferred charges and other assets |  |  | 4 |  |  |  | — |
Total assets |  | $ | 8,269 |  |  | $ | 5,982 |
Liabilities |  |  |  |  |  |
Accounts payable |  | $ | 1 |  |  | $ | — |
Accrued interest, payroll and taxes |  |  | 1 |  |  |  | — |
Other current liabilities |  |  | 7 |  |  |  | — |
Asset retirement obligations- noncurrent(2) |  |  | 167 |  |  |  | 38 |
Other deferred credits and other liabilities |  |  | — |  |  |  | — |
Total liabilities |  | $ | 176 |  |  | $ | 38 |

(1)
Prepayments are presented in other current assets in Virginia Power’s Consolidated Balance Sheets.
(2)
Asset retirement obligation-noncurrent are presented in other deferred credits and other liabilities in the Companies’ Consolidated Balance Sheets.

Note 16. Significant Financing Transactions

Credit Facilities and Short-term Debt

The Companies use short-term debt to fund working capital requirements and as a bridge to long-term debt financings. The levels of borrowing may vary significantly during the course of the year, depending upon the timing and amount of cash requirements not satisfied by cash from operations. In addition, Dominion Energy utilizes cash and letters of credit to fund collateral requirements. Collateral requirements are impacted by capital projects, commodity prices, hedging levels, Dominion Energy’s credit ratings and the credit quality of its counterparties. Other than the items discussed below, there have been no significant changes regarding the Companies’ credit facilities and short-term debt as described in Note 17 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Dominion Energy

Dominion Energy’s short-term financing is primarily supported by its joint revolving credit facility. In April 2025, Dominion Energy amended its joint revolving credit facility to, among other things, increase the facility limit from $6.0 billion to $7.0 billion, increase the letters of credit support from $2.0 billion to $3.0 billion and extend the maturity date from June 2026 to April 2030. The key financial covenants in the facility are unchanged except for a technical clarification to the calculation of equity utilized in the total debt to total capital ratio.

50

At September 30, 2025, Dominion Energy’s commercial paper and letters of credit outstanding, as well as its capacity available under the credit facility discussed above and its 364-day revolving credit agreement, were as follows:

| Facility Limit |  | Outstanding Commercial Paper |  | Outstanding Letters of Credit |  | Facility Capacity Available |
(millions) |  |  |  |  |  |  |  |
Joint revolving credit facility(1) | $ | 7,000 |  | $ | 2,071 |  | $ | 1 |  | $ | 4,928 |
364-day revolving credit facility(2) |  | 1,000 |  |  | — |  |  | — |  |  | 1,000 |
Total | $ | 8,000 |  | $ | 2,071 |  | $ | 1 |  | $ | 5,928 |

(1)
This credit facility matures in April 2030, with the potential to be extended by the borrowers to April 2032, and can be used by the borrowers under the credit facility to support bank borrowings and the issuance of commercial paper, as well as to support up to a combined $3.0 billion of letters of credit.
(2)
This credit facility, entered into in April 2025 with certain lenders, matures in April 2026, bears interest at a variable rate and contains a maximum allowed total debt to total capital ratio consistent with such allowed ratio under Dominion Energy’s joint revolving credit facility. This credit facility can be used to support bank borrowings and the issuance of commercial paper.

DESC’s short-term financing is supported through its access as co-borrower to the joint revolving credit facility discussed above with the Companies. In April 2025, the sub-limit for DESC was increased from $500 million to $1.0 billion. In July 2025, the sub-limit was decreased to $900 million.

In March 2025, FERC granted DESC authority through March 2027 to issue short-term indebtedness (pursuant to Section 204 of the Federal Power Act) in amounts not to exceed $1.8 billion outstanding with maturity dates of one year or less. In addition, in March 2025, FERC granted GENCO authority through March 2027 to issue short-term indebtedness not to exceed $300 million outstanding with maturity dates of one year or less.

In addition to the credit facilities mentioned above, Dominion Energy’s credit facilities and agreements also consist of the following:

•
An agreement entered into with a financial institution in March 2023, which it expects to allow it to issue up to $100 million in letters of credit. At September 30, 2025 and December 31, 2024, $86 million and $48 million in letters of credit were issued and outstanding under this agreement, respectively.
•
An agreement entered into with a financial institution in June 2024, subsequently amended in January 2025, which it expects to allow it to issue up to a combined $275 million in letters of credit at either Dominion Energy or Virginia Power. At September 30, 2025 and December 31, 2024, Dominion Energy had $89 million and $88 million in letters of credit issued and outstanding under this agreement, including $78 million and $77 million for Virginia Power, respectively.
•
An agreement entered into with a financial institution in January 2025, which it expects to allow it to issue up to a combined $150 million in letters of credit, with $50 million available to Dominion Energy and $100 million available to Virginia Power. At September 30, 2025, Dominion Energy had $52 million in letters of credit issued and outstanding under this agreement, including $50 million for Virginia Power. In October 2025, an additional $50 million in letters of credit were issued under this agreement for Virginia Power.

Dominion Energy has an effective shelf registration statement with the SEC for the sale of up to $3.0 billion of variable denomination floating rate demand notes, called Dominion Energy Reliability Investment SM as disclosed in Note 17 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024. At September 30, 2025 and December 31, 2024, Dominion Energy’s Consolidated Balance Sheets include $451 million and $439 million, respectively, with respect to such notes presented within short-term debt. The proceeds are used for general corporate purposes and to repay debt.

Virginia Power

Virginia Power’s short-term financing is supported through its access as co-borrower to Dominion Energy’s $7.0 billion joint revolving credit facility, as amended in April 2025. The credit facility can be used for working capital, as support for the combined commercial paper programs of the borrowers under the credit facility and for other general corporate purposes.

At September 30, 2025, Virginia Power’s share of commercial paper and letters of credit outstanding under the joint revolving credit facility with Dominion Energy and DESC was as follows:

| Facility Limit |  | Outstanding Commercial Paper |  | Outstanding Letters of Credit |
(millions) |  |  |  |  |  |
Joint revolving credit facility(1) | $ | 7,000 |  | $ | — |  | $ | — |

(1)
The full amount of the facility is available to Virginia Power, less any amounts outstanding to co-borrowers Dominion Energy and DESC. The sub-limit for Virginia Power is set pursuant to the terms of the facility but can be changed at the option of the borrowers multiple times per year. In April 2025, the sub-limit for Virginia Power was increased from $1.75 billion to $3.0 billion. In July 2025, the sub-limit was increased to $4.0 billion. If Virginia Power has liquidity needs in excess of its current sub-limit, the sub-limit may be changed or such needs may be satisfied through short-term intercompany borrowings from Dominion Energy. This credit facility matures in April 2030, with the potential to be extended by the borrowers to April 2032. The credit facility can be used to support bank borrowings and the issuance of commercial paper, as well as to support up to $3.0 billion (or the sub-limit, whichever is less) of letters of credit.

In addition to the credit facility mentioned above, Virginia Power’s credit facilities and agreements also consist of the following:

•
An agreement entered into with a financial institution in March 2023, which it expects to allow it to issue up to $300 million in letters of credit. At September 30, 2025 and December 31, 2024, $208 million and $112 million,

51

respectively, in letters of credit were issued and outstanding under this agreement.
•
An agreement entered into with a financial institution in June 2024, subsequently amended in January 2025, which it expects to allow it to issue up to a combined $275 million in letters of credit at either Dominion Energy or Virginia Power. At September 30, 2025 and December 31, 2024, Virginia Power had $78 million and $77 million, out of Dominion Energy’s total $89 million and $88 million, respectively, in letters of credit issued and outstanding under this agreement.
•
An agreement entered into with a financial institution in January 2025, which it expects to allow it to issue up to a combined $150 million in letters of credit, with $50 million available to Dominion Energy and $100 million available to Virginia Power. At September 30, 2025, Virginia Power had $50 million in letters of credit issued and outstanding under this agreement. In October 2025, an additional $50 million in letters of credit were issued under this agreement for Virginia Power.
•
An agreement entered into with a financial institution in September 2025, which allows it to issue up to $300 million in letters of credit. At September 30, 2025, Virginia Power had no letters of credit issued and outstanding under this agreement. In October 2025, $262 million of letters of credit were issued under this agreement.
•
Agreements entered into with financial institutions in September 2025, which it expects to allow it to issue up to $2.2 billion in letters of credit. At September 30, 2025, Virginia Power had no letters of credit issued and outstanding under these agreements. In October 2025, $1.1 billion of letters of credit were issued under these agreements.

Long-term Debt

Unless otherwise noted, the proceeds of long-term debt issuances were used for general corporate purposes and/or to repay short-term debt.

In April 2025, the Sustainability Revolving Credit Agreement, which is described in Note 18 to the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024, was amended to, among other things, extend the maturity date from June 2025 to April 2028, increase the commitment from $900 million to $1.0 billion and update certain pricing terms. At September 30, 2025 and December 31, 2024, Dominion Energy had no borrowings outstanding under this facility.

In January 2025, DESC issued $450 million of 5.30% first mortgage bonds that mature in 2035.

In March 2025, Dominion Energy issued $800 million of 5.00% senior notes and $700 million of 5.45% senior notes that mature in 2030 and 2035, respectively.

In March 2025, Virginia Power issued $625 million of 5.15% senior notes and $625 million of 5.65% senior notes that mature in 2035 and 2055, respectively.

In May 2025, Dominion Energy issued $1.0 billion of 4.60% senior notes that mature in 2028.

In August 2025, Dominion Energy issued $1.5 billion of junior subordinated notes, consisting of $825 million of 2025 Series A JSNs and $700 million of 2025 Series B JSNs that both mature in 2056. The 2025 Series A JSNs will bear interest at 6.00% until February 15, 2031. The interest rate will reset every five years beginning on February 15, 2031, to equal the then-current five-year U.S. Treasury rate plus a spread of 2.262%, provided that the interest rate will not reset below 6.00%. The 2025 Series B JSNs will bear interest at 6.20% until February 15, 2036. The interest rate will reset every five years beginning on February 15, 2036, to equal the then-current five-year U.S. Treasury rate plus a spread of 2.006%, provided that the interest rate will not reset below 6.20%. Dominion Energy may defer interest payments on the 2025 Series A JSNs and/or 2025 Series B JSNs on one or more occasions for up to 10 consecutive years. If interest payments on the 2025 Series A JSNs or the 2025 Series B JSNs are deferred, Dominion Energy may not, subject to certain limited exceptions, declare or pay any dividends or other distributions on, or redeem, repurchase or otherwise acquire any of its capital stock during the deferral period. Also, during the deferral period, Dominion Energy may not make any payments on or redeem or repurchase any debt securities or make any payments under any guarantee of debt that, in each case, is equal or junior in right of payment to the 2025 Series A JSNs and the 2025 Series B JSNs.

In September 2025, Virginia Power issued $825 million of 4.90% senior notes and $875 million of 5.60% senior notes that mature in 2035 and 2055, respectively.

In September 2025, Virginia Power remarketed two series of tax-exempt bonds, with an aggregate outstanding principal of $222 million to new investors. Each series of bonds bear interest at a coupon of 3.125% until October 2030, after which they will bear interest at a market rate to be determined at that time.

In October 2025, Dominion Energy issued an additional $1.3 billion of junior subordinated notes, consisting of $625 million of each of 2025 Series A JSNs and 2025 Series B JSNs. See above for further information on the 2025 Series A JSNs and 2025 Series B JSNs.

Dominion Energy recognized a charge of $10 million during the nine months ended September 30, 2024 within interest expense in its Consolidated Statements of Income in connection with the early redemption of Eagle Solar’s secured senior notes in February 2024.

Preferred Stock

Dominion Energy is authorized to issue up to 20 million shares of preferred stock, which may be designated into separate classes. At both September 30, 2025 and December 31, 2024, Dominion Energy had issued and outstanding 1.0 million shares of the Series C Preferred Stock.

Dominion Energy recorded dividends on the Series C Preferred Stock of $11 million ($10.875 per share) for both the

52

three months ended September 30, 2025 and 2024 and $33 million ($32.625 per share) for both the nine months ended September 30, 2025 and 2024, respectively. There have been no significant changes to Dominion Energy’s Series C Preferred Stock as described in Note 19 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

In June 2024, Dominion Energy completed a tender offer repurchasing 0.4 million of the 0.8 million shares of Series B Preferred Stock issued and outstanding representing $440 million in aggregate liquidation preference. Dominion Energy recorded dividends on the Series B Preferred Stock of $4 million ($11.625 per share) and $21 million ($33.172 per share) for the three and nine months ended September 30, 2024, respectively, prior to its repurchase described above and redemption as described in Note 19 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024. These amounts exclude a deemed dividend of $9 million representing deferred issuance costs, legal and bank fees and excise tax associated with the shares of Series B Preferred Stock repurchased in June 2024.

Issuance of Common Stock

Dominion Energy recorded, net of fees and commissions, $105 million from the issuance of two million shares of common stock for the nine months ended September 30, 2025 and $102 million from the issuance of two million shares of common stock for the nine months ended September 30, 2024, through various programs including Dominion Energy Direct® and employee savings plans as described in Note 20 to the Consolidated Financial Statements to the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024. In August 2023, Dominion Energy began purchasing its common stock on the open market for these direct stock purchase plans and, in March 2024, began issuing new shares of common stock.

In June 2025, Virginia Power issued 30,006 shares of its common stock to Dominion Energy for $2.1 billion and in August 2025, issued 19,630 shares of its common stock to Dominion Energy for $1.4 billion. The proceeds for both issuances were utilized to reduce the aggregate amount outstanding under its intercompany credit facility with Dominion Energy. Virginia Power issued the shares pursuant to a Virginia Commission order authorizing the issuance of up to $3.5 billion of common stock through the end of 2025 in order to maintain adequate credit metrics and efficient access to capital markets while funding necessary capital expenditures, as discussed in Note 13. Virginia Power did no t issue any shares of its common stock to Dominion Energy in 2024.

At-the-Market Program

In May 2024, Dominion Energy entered into sales agency agreements to effect sales under an existing at-the-market program as described in Note 20 to the Consolidated Financial Statements to the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024. During the first quarter of 2025, Dominion Energy entered into forward sale agreements for approximately 8.8 million shares of its common stock expected to be settled in the fourth quarter of 2025 at a weighted-average initial forward price of $55.34 per share. Including the forward sale agreements entered into from September through December 2024, Dominion Energy has entered into forward sale agreements for approximately 18.5 million shares of its common stock expected to be settled in the fourth quarter of 2025 at a weighted-average initial forward price of $56.62 per share. During the third quarter of 2025, Dominion Energy entered into forward sale agreements for approximately 2.4 million shares of its common stock expected to be settled by the fourth quarter of 2027, at a weighted-average initial forward price of $59.91 per share. Except in certain circumstances, Dominion Energy can elect physical, cash or net settlement of the forward sale agreements.

In February 2025, Dominion Energy entered into sales agency agreements to effect sales under a new at-the-market program. Under the sales agency agreements, Dominion Energy may, from time to time, offer and sell shares of its common stock through the sales agents or enter into one or more forward sale agreements with respect to shares of its common stock. Sales by Dominion Energy through the sales agents or by forward sellers pursuant to the forward sale agreements cannot exceed $1.2 billion in the aggregate, with Dominion Energy having the ability from time to time to increase such amount at its option. During the second quarter of 2025, Dominion Energy entered into forward sale agreements for approximately 11 million shares of its common stock expected to be settled in the fourth quarter of 2026 at a weighted-average initial forward price of $55.83 per share. During the third quarter of 2025, Dominion Energy entered into forward sale agreements for approximately 9.6 million shares of its common stock expected to be settled by the fourth quarter of 2027 at a weighted-average initial forward price of $61.11 per share. Except in certain circumstances, Dominion Energy can elect physical, cash or net settlement of the forward sale agreements.

Repurchase of Common Stock

In November 2020, the Board of Directors authorized the repurchase of up to $1.0 billion of Dominion Energy’s common stock, with $0.9 billion available as of September 30, 2025.

Dominion Energy did no t repurchase any shares of common stock during the nine months ended September 30, 2025, except for shares tendered by employees to satisfy tax withholding obligations on vested restricted stock, which do not count against its stock repurchase authorization.

Note 17. Commitments and Contingencies

As a result of issues generated in the ordinary course of business, the Companies are involved in legal proceedings before various courts and are periodically subject to governmental examinations (including by regulatory

53

authorities), inquiries and investigations. Certain legal proceedings and governmental examinations involve demands for unspecified amounts of damages, are in an initial procedural phase, involve uncertainty as to the outcome of pending appeals or motions or involve significant factual issues that need to be resolved, such that it is not possible for the Companies to estimate a range of possible loss. For such matters that the Companies cannot estimate, a statement to this effect is made in the description of the matter. Other matters may have progressed sufficiently through the litigation or investigative processes such that the Companies are able to estimate a range of possible loss. For legal proceedings and governmental examinations that the Companies are able to reasonably estimate a range of possible losses, an estimated range of possible loss is provided, in excess of the accrued liability (if any) for such matters. The Companies maintain various insurance programs, including general liability insurance coverage which provides coverage for personal injury or wrongful death cases. Any accrued liability is recorded on a gross basis with a receivable also recorded for any probable insurance recoveries. Estimated ranges of loss are inclusive of legal fees and net of any anticipated insurance recoveries. Any estimated range is based on currently available information and involves elements of judgment and significant uncertainties. Any estimated range of possible loss may not represent the Companies’ maximum possible loss exposure. The circumstances of such legal proceedings and governmental examinations will change from time to time and actual results may vary significantly from the current estimate. For current proceedings not specifically reported below, management does not anticipate that the liabilities, if any, arising from such proceedings would have a material effect on the Companies’ financial position, liquidity or results of operations.

Environmental Matters

The Companies are subject to costs resulting from a number of federal, state and local laws and regulations designed to protect human health and the environment. These laws and regulations affect future planning and existing operations. They can result in increased capital, operating and other costs as a result of compliance, remediation, containment and monitoring obligations.

Air

The CAA, as amended, is a comprehensive program utilizing a broad range of regulatory tools to protect and preserve the nation’s air quality. At a minimum, states are required to establish regulatory programs to meet applicable requirements of the CAA. However, states may choose to develop regulatory programs that are more restrictive. Many of the Companies’ facilities are subject to the CAA’s permitting and other requirements.

Ozone Standards

The EPA published final non-attainment designations for the October 2015 ozone standards in June 2018 with states required to develop plans to address the new standard. Certain states in which the Companies operate have developed plans, and had such plans approved or partially approved by the EPA, which are not expected to have a material impact on the Companies’ results of operations or cash flows. In March 2023, the EPA issued a final rule specifying an interstate federal implementation plan to comply with certain aspects of planning for the 2015 ozone standards which was applicable in August 2023 for certain states, including Virginia. The interstate federal implementation plan imposes tighter NO X emissions limits during the ozone season and includes provisions for the use of allowances to cover such emissions. Unless and until implementation plans for the 2015 ozone standards are fully developed and approved and in effect for all states in which the Companies operate, the Companies are unable to predict whether or to what extent the new rules will ultimately require additional controls. The expenditures required to implement additional controls could have a material impact on the Companies’ results of operations, financial condition and/or cash flows.

Carbon Regulations

In August 2016, the EPA issued a draft rule proposing to reaffirm that a source’s obligation to obtain a PSD or Title V permit for GHGs is triggered only if such permitting requirements are first triggered by non-GHG, or conventional, pollutants that are regulated by the New Source Review program, and exceed a significant emissions rate of 75,000 tons per year of CO 2 equivalent emissions. Until the EPA ultimately takes final action on this rulemaking, the Companies cannot predict the impact to their results of operations, financial condition and/or cash flows.

Water

The CWA, as amended, is a comprehensive program requiring a broad range of regulatory tools including a permit program to authorize and regulate discharges to surface waters with strong enforcement mechanisms. The Companies must comply with applicable aspects of the CWA programs at their operating facilities.

Regulation 316(b)

In October 2014, the final regulations under Section 316(b) of the CWA that govern existing facilities and new units at existing facilities that employ a cooling water intake structure and that have flow levels exceeding a minimum threshold became effective. The rule establishes a national standard for impingement based on seven compliance options, but forgoes the creation of a single technology standard for entrainment. Instead, the EPA has delegated entrainment technology decisions to state regulators. State regulators are to make case-by-case entrainment technology determinations after an examination of five mandatory facility-specific factors, including a social cost-benefit test, and six optional facility-specific factors. The rule governs all electric generating stations with water withdrawals above two MGD, with a heightened entrainment analysis for those facilities over 125 MGD. Dominion Energy and Virginia Power currently have 14 and eight facilities, respectively, that are subject to the final regulations. Dominion Energy is also working with the EPA and state regulatory agencies to assess the applicability of Section 316(b) to eight hydroelectric facilities, including three

54

Virginia Power facilities. The Companies anticipate that they may have to install impingement control technologies at certain of these stations that have once-through cooling systems. The Companies are currently evaluating the need or potential for entrainment controls under the final rule as these decisions will be made on a case-by-case basis after a thorough review of detailed biological, technological and cost benefit studies. DESC is conducting studies and implementing plans as required by the rule to determine appropriate intake structure modifications at certain facilities to ensure compliance with this rule. While the impacts of this rule could be material to the Companies’ results of operations, financial condition and/or cash flows, the existing regulatory frameworks in South Carolina and Virginia provide rate recovery mechanisms that could substantially mitigate any such impacts for the regulated electric utilities.

Effluent Limitations Guidelines

In September 2015, the EPA released a final rule to revise the Effluent Limitations Guidelines for the Steam Electric Power Generating Category. The final rule established updated standards for wastewater discharges that apply primarily at coal and oil steam generating stations. Affected facilities are required to convert from wet to dry or closed cycle coal ash management, improve existing wastewater treatment systems and/or install new wastewater treatment technologies in order to meet the new discharge limits. In April 2017, the EPA granted two separate petitions for reconsideration of the Effluent Limitations Guidelines final rule and stayed future compliance dates in the rule. Also in April 2017, the U.S. Court of Appeals for the Fifth Circuit granted the EPA’s request for a stay of the pending consolidated litigation challenging the rule while the EPA addresses the petitions for reconsideration. In September 2017, the EPA signed a rule to postpone the earliest compliance dates for certain waste streams regulations in the Effluent Limitations Guidelines final rule from November 2018 to November 2020; however, the latest date for compliance for these regulations was December 2023. In October 2020, the EPA released the final rule that extended the latest dates for compliance with individual facilities’ compliance dates that would vary based on circumstances and the determination by state regulators and may range from 2021 to 2028. In May 2024, the EPA released a final rule revising the 2015 and 2020 Effluent Limitations Guidelines, establishing more stringent standards for wastewater discharges for the Steam Electric Power Generating Category, which apply primarily to wastewater discharges at coal and oil steam generating stations. Individual facilities’ compliance dates will vary based on circumstances and the determination by state regulators and may range to 2029, except in certain circumstances when a facility will be retired by 2034. Dominion Energy expects to complete wastewater treatment technology retrofits and modifications at its Williams generating station, with a similar project at its Wateree generation station under evaluation, to meet the requirements with the existing regulatory framework in South Carolina providing rate recovery mechanisms for costs of the projects. As discussed in Note 14 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024, the Companies recorded an increase to their AROs in 2024 in connection with the expected compliance costs associated with the EPA’s May 2024 final rule concerning CCR. The Companies expect that such AROs would satisfy any AROs that would have otherwise been necessary for compliance with the EPA’s May 2024 Effluent Limitations Guidelines. Dominion Energy is currently unable to estimate what costs, if any, may be required in addition to the project for the Williams generating station, a potential project at the Wateree generating station and the recorded AROs to meet the requirements to operate certain facilities past 2034. However, Dominion Energy expects that while such costs for facility improvements, if required, could be material to the Companies’ financial condition and/or cash flows, the existing regulatory frameworks in Virginia and South Carolina provide rate recovery mechanisms that could substantially mitigate any such impacts.

Waste Management and Remediation

The operations of the Companies are subject to a variety of state and federal laws and regulations governing the management and disposal of solid and hazardous waste, and release of hazardous substances associated with current and/or historical operations. The CERCLA, as amended, and similar state laws, may impose joint, several and strict liability for cleanup on potentially responsible parties who owned, operated or arranged for disposal at facilities affected by a release of hazardous substances. In addition, many states have created programs to incentivize voluntary remediation of sites where historical releases of hazardous substances are identified and property owners or responsible parties decide to initiate cleanups.

From time to time, the Companies may be identified as a potentially responsible party in connection with the alleged release of hazardous substances or wastes at a site. Under applicable federal and state laws, the Companies could be responsible for costs associated with the investigation or remediation of impacted sites, or subject to contribution claims by other responsible parties for their costs incurred at such sites. The Companies also may identify, evaluate and remediate other potentially impacted sites under voluntary state programs. Remediation costs may be subject to reimbursement under the Companies’ insurance policies, rate recovery mechanisms, or both. Except as described below, the Companies do not believe these matters will have a material effect on results of operations, financial condition and/or cash flows.

Dominion Energy has determined that it is associated with former manufactured gas plant sites, including certain sites associated with Virginia Power. At four sites associated with Dominion Energy, remediation work has been substantially completed under federal or state oversight. Where required, the sites are following state-approved groundwater monitoring programs. Dominion Energy has proposed remediation plans for one site at Virginia Power and expects to commence remediation activities in 2026 depending on receipt of final permits and approvals. At September 30, 2025 and

55

December 31, 2024, Dominion Energy had $53 million and $56 million, respectively, of reserves recorded. At September 30, 2025 and December 31, 2024, Virginia Power had $48 million and $50 million, respectively, of reserves recorded. Dominion Energy is associated with three additional sites, including two associated with Virginia Power, which are not under investigation by any state or federal environmental agency nor the subject of any current or proposed plans to perform remediation activities. Due to the uncertainty surrounding such sites, the Companies are unable to make an estimate of the potential financial statement impacts.

Other Legal Matters

The Companies are defendants in a number of lawsuits and claims involving unrelated incidents of property damage and personal injury. Due to the uncertainty surrounding these matters, the Companies are unable to make an estimate of the potential financial statement impacts; however, they could have a material impact on results of operations, financial condition and/or cash flows. In 2024, Dominion Energy resolved a claim associated with operations included in the East Ohio Transaction and at December 31, 2024, Dominion Energy’s Consolidated Balance Sheet includes a $30 million offsetting reserve and insurance receivable for this claim.

Guarantees, Surety Bonds and Letters of Credit

Dominion Energy enters into guarantee arrangements on behalf of its consolidated subsidiaries, primarily to facilitate their commercial transactions with third parties. If any of these subsidiaries fail to perform or pay under the contracts and the counterparties seek performance or payment, Dominion Energy would be obligated to satisfy such obligation. To the extent that a liability subject to a guarantee has been incurred by one of Dominion Energy’s consolidated subsidiaries, that liability is included in the Consolidated Financial Statements. Dominion Energy is not required to recognize liabilities for guarantees issued on behalf of its subsidiaries unless it becomes probable that it will have to perform under the guarantees. Terms of the guarantees typically end once obligations have been paid. Dominion Energy currently believes it is unlikely that it would be required to perform or otherwise incur any losses associated with guarantees of its subsidiaries’ obligations.

At September 30, 2025, Dominion Energy had issued the following subsidiary guarantees:

|  | Maximum Exposure |
(millions) |  |  |
Commodity transactions(1) |  | $ | 2,439 |
Nuclear obligations(2) |  |  | 181 |
Solar(3) |  |  | 85 |
Other(4) |  |  | 352 |
Total(5)(6) |  | $ | 3,057 |

(1)
Guarantees related to commodity commitments of certain subsidiaries. These guarantees were provided to counterparties in order to facilitate physical and financial transaction related commodities and services.
(2)
Guarantees primarily related to certain DGI subsidiaries regarding all aspects of running a nuclear facility.
(3)
Includes guarantees to facilitate the development of solar projects.
(4)
Guarantees related to other miscellaneous contractual obligations such as leases, environmental obligations, construction projects and insurance programs. Due to the uncertainty of workers’ compensation claims, the parental guarantee has no stated limit.
(5)
Excludes Dominion Energy’s guarantee of an offshore wind installation vessel discussed in Note 14.
(6)
In July 2016, Dominion Energy signed an agreement with a lessor to construct and lease a new corporate office property in Richmond, Virginia and commenced an initial five-year lease term in August 2019, with certain options at the end of the term to extend the lease, purchase or sell the property. In July 2024, the agreement was amended to reflect Dominion Energy’s election to extend the lease term through July 2029. At the end of the lease term, Dominion Energy can (i) extend the term of the lease for at least one year, subject to the approval of the participants, at current market terms, (ii) purchase the property for an amount equal to the project costs or (iii) subject to certain terms and conditions, sell the property on behalf of the lessor to a third party using commercially reasonable efforts to obtain the highest cash purchase price for the property. If the project is sold and the proceeds from the sale are insufficient to repay the investors for the project costs, Dominion Energy may be required to make a payment to the lessor equal to the recorded lease balance.

In addition, Dominion Energy had issued an additional $20 million of guarantees at September 30, 2025, primarily to support third parties. No amounts related to these guarantees have been recorded.

Dominion Energy also had issued three guarantees as of September 30, 2025 related to Cove Point, previously an equity method investment, in support of terminal services and transportation. Two of the Cove Point guarantees have a cumulative maximum exposure of $1.9 billion while the other one guarantee has no maximum limit. No amounts related to these guarantees have been recorded.

Additionally, at September 30, 2025, Dominion Energy had purchased $418 million of surety bonds, including $347 million at Virginia Power, and authorized the issuance of letters of credit by financial institutions, as discussed in Note 16, to facilitate commercial transactions by its subsidiaries with third parties. Under the terms of surety bonds, the Companies are obligated to indemnify the respective surety bond company for any amounts paid.

56

Note 18. Credit Risk

The Companies’ accounting policies for credit risk are discussed in Note 24 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

At September 30, 2025, Dominion Energy’s credit exposure totaled $103 million, primarily related to price risk management activities. Of this amount, investment grade counterparties, including those internally rated, represented 84%. No single counterparty, whether investment grade or non-investment grade, exceeded $40 million of exposure. At September 30, 2025, Virginia Power’s exposure related to wholesale customers totaled $22 million. Of this amount, investment grade counterparties, including those internally rated, represented 31%. No single counterparty, whether investment grade or non-investment grade, exceeded $10 million of exposure.

Credit-Related Contingent Provisions

Certain of Dominion Energy and Virginia Power’s derivative instruments contain credit-related contingent provisions. These provisions require Dominion Energy and Virginia Power to provide collateral upon the occurrence of specific events, primarily a credit rating downgrade. If the credit-related contingent features underlying these instruments that are in a liability position and not fully collateralized with cash were fully triggered, Dominion Energy and Virginia Power would have been required to post additional collateral to its counterparties of $10 million and $8 million, respectively, as of September 30, 2025, and $13 million and $12 million, respectively, as of December 31, 2024. The collateral that would be required to be posted includes the impacts of any offsetting asset positions and any amounts already posted for derivatives, non-derivative contracts and derivatives elected under the normal purchases and normal sales exception, per contractual terms. Dominion Energy and Virginia Power had no amounts of collateral posted at September 30, 2025 or December 31, 2024 related to derivatives with credit-related contingent provisions that are in a liability position and not fully collateralized with cash. There were no letters of credit posted as collateral at September 30, 2025 or December 31, 2024 for either Dominion Energy or Virginia Power. The aggregate fair value of all derivative instruments with credit related contingent provisions that are in a liability position and not fully collateralized with cash for Dominion Energy and Virginia Power was $10 million and $8 million, respectively, as of September 30, 2025 and $13 million and $12 million, respectively, as of December 31, 2024, which does not include the impact of any offsetting asset positions.

See Note 9 for additional information about derivative instruments.

Note 19. Related-Party Transactions

Dominion Energy’s transactions with equity method investments are described in Note 10. Virginia Power engages in related-party transactions primarily with other Dominion Energy subsidiaries (affiliates). Virginia Power’s receivable and payable balances with affiliates are settled based on contractual terms or on a monthly basis, depending on the nature of the underlying transactions. Virginia Power is included in Dominion Energy’s consolidated federal income tax return and, where applicable, combined income tax returns for Dominion Energy are filed in various states. A discussion of Virginia Power’s significant related-party transactions follows.

Virginia Power transacts with affiliates for certain quantities of natural gas and other commodities in the ordinary course of business. Virginia Power also enters into certain commodity derivative contracts with affiliates. Virginia Power uses these contracts, which are principally comprised of forward commodity purchases, to manage commodity price risks associated with purchases of natural gas. At September 30, 2025, Virginia Power’s derivative assets and liabilities with affiliates were $24 million and $15 million, respectively. At December 31, 2024, Virginia Power’s derivative assets and liabilities with affiliates were $19 million and $17 million, respectively. See Note 9 for additional information.

Virginia Power participates in certain Dominion Energy benefit plans described in Note 22 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024. At September 30, 2025 and December 31, 2024, amounts due to Dominion Energy associated with the Dominion Energy Pension Plan and included in other deferred credits and other liabilities in the Consolidated Balance Sheets were $572 million and $505 million, respectively. At September 30, 2025 and December 31, 2024, Virginia Power’s amounts due from Dominion Energy associated with the Dominion Energy Retiree Health and Welfare Plan and included in other deferred charges and other assets in the Consolidated Balance Sheets were $707 million and $663 million, respectively.

DES and other affiliates provide accounting, legal, finance and certain administrative and technical services to Virginia Power. In addition, Virginia Power provides certain services to affiliates, including charges for facilities and equipment usage.

The financial statements for all years presented include costs for certain general, administrative and corporate expenses assigned by DES to Virginia Power on the basis of direct and allocated methods in accordance with Virginia Power’s services agreements with DES. Where costs incurred cannot be determined by specific identification, the costs are allocated based on the proportional level of effort devoted by DES resources that is attributable to the entity, determined by reference to number of employees, salaries and wages and other similar measures for the relevant DES service. Management believes the assumptions and methodologies

57

underlying the allocation of general corporate overhead expenses are reasonable.

Presented below are Virginia Power’s significant transactions with DES and other affiliates:

|  | Quarter-to-Date |  |  | Year-to-Date |
Period Ended September 30, |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Commodity purchases from affiliates |  | $ | 221 |  |  | $ | 147 |  |  | $ | 734 |  |  | $ | 453 |
Services provided by affiliates(1)(2) |  |  | 203 |  |  |  | 169 |  |  |  | 608 |  |  |  | 495 |
Services provided to affiliates |  |  | 4 |  |  |  | 4 |  |  |  | 11 |  |  |  | 12 |

(1)
Includes capitalized expenditures of $76 million and $59 million for the three months ended September 30, 2025 and 2024, respectively, and $222 million and $170 million for the nine months ended September 30, 2025 and 2024, respectively.
(2)
Excludes amounts related to Virginia Power's operating lease with an affiliated entity as discussed in Note 14.

Virginia Power has borrowed funds from Dominion Energy under short-term borrowing arrangements. There were less than $1 million and $500 million in short-term demand note borrowings from Dominion Energy as of September 30, 2025 and December 31, 2024, respectively. Virginia Power had no outstanding borrowings, net of repayments, under the Dominion Energy money pool for its nonregulated subsidiaries as of September 30, 2025 and December 31, 2024. Interest charges related to Virginia Power’s borrowings from Dominion Energy were $4 million and $17 million for the three months ended September 30, 2025 and 2024, respectively, and $40 million and $23 million for the nine months ended September 30, 2025 and 2024, respectively.

In the fourth quarter of 2024, Virginia Power declared a dividend of $407 million, which was paid in March 2025.

In June 2025 and August 2025, Virginia Power issued common stock to Dominion Energy as discussed in Note 16. There were no such issuances of Virginia Power common stock to Dominion Energy in 2024.

See Note 14 for discussion of Virginia Power’s lease, classified as an operating lease with a 20-month term, with an affiliated entity for the use of a Jones Act compliant offshore wind installation vessel. As of September 30, 2025, Virginia Power’s Consolidated Balance Sheet reflects $221 million of affiliated lease payables comprised of $138 million presented in other current liabilities and $83 million presented in other deferred credits and other liabilities.

58

Note 20. Employee Benefit Plans

Net Periodic Benefit (Credit) Cost

The service cost component of net periodic benefit (credit) cost is reflected in other operations and maintenance expense in Dominion Energy’s Consolidated Statements of Income, except for less than $1 million and $5 million for the three and nine months ended September 30, 2024, respectively, presented in discontinued operations. The non-service cost components of net periodic benefit (credit) cost are reflected in other income (expense) in Dominion Energy’s Consolidated Statements of Income, except for $— million and $13 million for the three and nine months ended September 30, 2024, respectively, presented in discontinued operations. The components of Dominion Energy’s provision for net periodic benefit (credit) cost are as follows:

|  | Pension Benefits |  |  | Other Postretirement Benefits |
|  | Quarter-to-Date |  |  | Year-to-Date |  |  | Quarter-to-Date |  |  | Year-to-Date |
Period Ended September 30, |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 19 |  |  | $ | 19 |  |  | $ | 57 |  |  | $ | 63 |  |  | $ | 3 |  |  | $ | 2 |  |  | $ | 8 |  |  | $ | 8 |
Interest cost |  |  | 108 |  |  |  | 107 |  |  |  | 325 |  |  |  | 324 |  |  |  | 13 |  |  |  | 15 |  |  |  | 42 |  |  |  | 43 |
Expected return on plan assets |  |  | (170 | ) |  |  | (200 | ) |  |  | (508 | ) |  |  | (611 | ) |  |  | (39 | ) |  |  | (43 | ) |  |  | (119 | ) |  |  | (128 | )
Amortization of prior service (credit) cost |  |  | 1 |  |  |  | 1 |  |  |  | 1 |  |  |  | 1 |  |  |  | (6 | ) |  |  | (9 | ) |  |  | (19 | ) |  |  | (27 | )
Net actuarial (gain) loss |  |  | — |  |  |  | (23 | ) |  |  | — |  |  |  | (171 | ) |  |  | — |  |  |  | 11 |  |  |  | — |  |  |  | (58 | )
Curtailments(1) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (56 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (4 | )
Plan amendment |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 22 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Net periodic benefit (credit) cost |  | $ | (42 | ) |  | $ | (96 | ) |  | $ | (125 | ) |  | $ | (428 | ) |  | $ | (29 | ) |  | $ | (24 | ) |  | $ | (88 | ) |  | $ | (166 | )

(1)
2024 amounts relate primarily to the East Ohio Transaction.

Pension and Other Postretirement Benefit Plan Remeasurements

As a result of the East Ohio Transaction, in the first quarter of 2024 Dominion Energy remeasured its pension and other postretirement benefit plans. The remeasurement resulted in $202 million ($151 million after-tax) of higher market related impacts on pension and other postretirement plans related to the East Ohio Transaction, reflected in other income (expense) in Dominion Energy’s Consolidated Statement of Income. The discount rates used for the remeasurement related to the East Ohio Transaction were 5.62% for the pension plans and 5.61%-5.62% for the other postretirement benefit plans, respectively. All other assumptions used for the remeasurements were consistent with the measurement as of December 31, 2023.

As a result of the Questar Gas Transaction, in the second quarter of 2024 Dominion Energy remeasured its pension and other postretirement benefit plans. The remeasurement resulted in $15 million ($11 million after-tax) of higher market related impacts on pension and other postretirement plans related to the Questar Gas Transaction, reflected in other income (expense) in Dominion Energy’s Consolidated Statement of Income. The discount rates used for the remeasurement related to the Questar Gas Transaction were 5.75% for the pension plan and 5.74% for the other postretirement benefit plan, respectively. All other assumptions used for the remeasurements were consistent with the measurement as of December 31, 2023.

Employer Contributions

During the three and nine months ended September 30, 2025, Dominion Energy made $9 million and $16 million, respectively, of contributions to its qualified defined benefit pension plans. Dominion Energy expects to make $19 million of minimum required contributions to its qualified defined benefit pension plans in 2025. Dominion Energy is not required to make any contributions to its VEBAs associated with its other postretirement plans in 2025. Dominion Energy considers voluntary contributions from time to time, either in the form of cash or equity securities.

Other Employee Matters

In the first quarter of 2024, Dominion Energy recorded a charge of $23 million ($17 million after-tax) within discontinued operations attributable to a contribution to its defined contribution employee savings plan associated with the closing of the East Ohio Transaction. Additionally, in the first quarter of 2024, Dominion Energy recorded a charge of $13 million ($10 million after-tax) in other operations and maintenance expense related to a severance accrual for certain employees in connection with the business review.

59

Note 21. Operating Segments

The Companies are organized primarily on the basis of products and services sold in the U.S. A description of the operations included in the Companies’ primary operating segments is as follows:

Primary Operating Segment |  | Description of Operations |  | Dominion Energy |  | Virginia Power
Dominion Energy Virginia |  | Regulated electric distribution |  | X |  | X
|  | Regulated electric transmission |  | X |  | X
|  | Regulated electric generation fleet(1) |  | X |  | X
Dominion Energy South Carolina |  | Regulated electric distribution |  | X |  |
|  | Regulated electric transmission |  | X |  |
|  | Regulated electric generation fleet |  | X |  |
|  | Regulated gas distribution and storage |  | X |  |
Contracted Energy(2) |  | Nonregulated electric generation fleet |  | X |  |

(1)
Includes Virginia Power’s non-jurisdictional solar generation operations.
(2)
Includes renewable natural gas operations.

In addition to the operating segments above, the Companies also report a Corporate and Other segment.

Dominion Energy

The Corporate and Other Segment of Dominion Energy includes its corporate, service company and other functions (including unallocated debt) as well as its noncontrolling interest in Dominion Privatization. In addition, Corporate and Other includes specific items attributable to Dominion Energy’s operating segments that are not included in profit measures evaluated by executive management in assessing the segments’ performance or in allocating resources, including the net impact of the operations reflected as discontinued operations, which includes the entities included in the East Ohio (through March 2024), Questar Gas (through May 2024) and PSNC (through September 2024) Transactions, certain solar generation facility development operations (through April 2024) and a noncontrolling interest in Atlantic Coast Pipeline as discussed in Notes 3 and 10 of this report as well as Notes 3 and 9 to the Consolidated Financial Statements in Dominion Energy’s Annual Report on Form 10-K for the year ended December 31, 2024.

Dominion Energy’s CODM is the CEO. The Dominion Energy CODM uses net income (loss) as the primary profit or loss measure at each segment. The Dominion Energy CODM considers budget-to-actual variances on a quarterly basis when making decisions about allocating operating and capital resources to each segment, when assessing the performance of each segment and when determining the compensation of certain employees.

In the nine months ended September 30, 2025, Dominion Energy reported after-tax net expenses of $108 million in the Corporate and Other segment, including $58 million of after-tax net income for specific items with $81 million of after-tax net income attributable to its operating segments. In the nine months ended September 30, 2024, Dominion Energy reported after-tax net expenses of $272 million in the Corporate and Other segment, including $12 million of after-tax net income for specific items with $76 million of after-tax net income attributable to its operating segments.

The net income for specific items attributable to Dominion Energy’s operating segments in 2025 primarily related to the impact of the following items:

•
A $415 million ($255 million after-tax) gain related to investments in nuclear decommissioning trust funds, attributable to:
•
Contracted Energy ($221 million after-tax); and
•
Dominion Energy Virginia ($34 million after-tax); partially offset by
•
A $112 million ($84 million after-tax) charge for Virginia Power’s share of costs not expected to be recovered from customers on the CVOW Commercial Project, attributable to Dominion Energy Virginia;
•
A $106 million ($79 million after-tax) loss associated with severe weather events, attributable to Dominion Energy Virginia; and
•
A $16 million ($12 million after-tax) loss related to economic hedging activities, attributable to Contracted Energy.

The net income for specific items attributable to Dominion Energy’s operating segments in 2024 primarily related to the impact of the following items:

•
A $515 million ($323 million after-tax) gain related to investments in nuclear decommissioning trust funds, attributable to:
•
Contracted Energy ($278 million after-tax); and
•
Dominion Energy Virginia ($45 million after-tax); partially offset by
•
A $107 million ($82 million after-tax) loss related to economic hedging activities, attributable to Contracted Energy;
•
$60 million ($46 million after-tax) of charges for the impairment of certain nonregulated renewable natural gas facilities, attributable to Contracted Energy;
•
A $58 million ($44 million after-tax) charge in connection with the electric base rate case in South Carolina, attributable to Dominion Energy South Carolina;
•
A $47 million ($35 million after-tax) charge in connection with a settlement of an agreement, attributable to Contracted Energy; and
•
A $30 million ($22 million after-tax) charge related to the write-off of certain early-stage development costs, attributable to Dominion Energy Virginia.

60

The following tables present segment information pertaining to Dominion Energy’s operations:

Three Months Ended September 30, | Dominion Energy Virginia |  |  | Dominion Energy South Carolina |  |  | Contracted Energy |  |  | Corporate and Other |  |  | Adjustments & Eliminations |  |  | Consolidated Total |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from external customers | $ | 3,313 |  |  | $ | 942 |  |  | $ | 290 |  |  | $ | (18 | ) |  | $ | — |  |  | $ | 4,527 |
Intersegment revenue |  | (2 | ) |  |  | 3 |  |  |  | 7 |  |  |  | 299 |  |  |  | (307 | ) |  |  | — |
Total Operating Revenue |  | 3,311 |  |  |  | 945 |  |  |  | 297 |  |  |  | 281 |  |  |  | (307 | ) |  |  | 4,527 |
Electric fuel and other energy-related purchases(1) |  | 1,071 |  |  |  | 239 |  |  |  | 31 |  |  |  | — |  |  |  | (4 | ) |  |  | 1,337 |
Purchased electric capacity(1) |  | 32 |  |  |  | 5 |  |  |  | — |  |  |  | — |  |  |  | (1 | ) |  |  | 36 |
Purchased gas(1) |  | — |  |  |  | 30 |  |  |  | 1 |  |  |  | — |  |  |  | — |  |  |  | 31 |
Other operations and maintenance(1)(2) |  | 581 |  |  |  | 168 |  |  |  | 103 |  |  |  | 428 |  |  |  | (300 | ) |  |  | 980 |
Depreciation and amortization(1) |  | 415 |  |  |  | 141 |  |  |  | 30 |  |  |  | 23 |  |  |  | — |  |  |  | 609 |
Other taxes(1) |  | 92 |  |  |  | 77 |  |  |  | 15 |  |  |  | 13 |  |  |  | (2 | ) |  |  | 195 |
Total Operating Expenses |  | 2,191 |  |  |  | 660 |  |  |  | 180 |  |  |  | 464 |  |  |  | (307 | ) |  |  | 3,188 |
Interest and related charges(1) |  | 236 |  |  |  | 69 |  |  |  | 15 |  |  |  | 250 |  |  |  | (43 | ) |  |  | 527 |
Income tax expense (benefit)(1) |  | 169 |  |  |  | 53 |  |  |  | (33 | ) |  |  | 27 |  |  |  | — |  |  |  | 216 |
Equity in earnings (losses) of equity method investees(3) |  | — |  |  |  | — |  |  |  | 1 |  |  |  | (1 | ) |  |  | — |  |  |  | — |
Other income (expense)(3) |  | 45 |  |  |  | — |  |  |  | 7 |  |  |  | 354 |  |  |  | — |  |  |  | 406 |
Interest income(3) |  | 5 |  |  |  | 5 |  |  |  | 22 |  |  |  | 37 |  |  |  | (43 | ) |  |  | 26 |
Net Income from Discontinued Operations Including Noncontrolling Interests |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Noncontrolling Interests(3) |  | 86 |  |  |  | — |  |  |  | — |  |  |  | (64 | ) |  |  | — |  |  |  | 22 |
Net Income (Loss) Attributable to Dominion Energy | $ | 679 |  |  | $ | 168 |  |  | $ | 165 |  |  | $ | (6 | ) |  | $ | — |  |  | $ | 1,006 |
Investment in equity method investees(4) | $ | — |  |  | $ | — |  |  | $ | 98 |  |  | $ | 40 |  |  | $ | — |  |  | $ | 138 |
Total assets (billions) |  | 77.4 |  |  |  | 18.9 |  |  |  | 11.5 |  |  |  | 9.0 |  |  |  | (5.2 | ) |  |  | 111.6 |
2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from external customers | $ | 2,760 |  |  | $ | 846 |  |  | $ | 256 |  |  | $ | 79 |  |  | $ | — |  |  | $ | 3,941 |
Intersegment revenue |  | 2 |  |  |  | 2 |  |  |  | 4 |  |  |  | 252 |  |  |  | (260 | ) |  |  | — |
Total Operating Revenue |  | 2,762 |  |  |  | 848 |  |  |  | 260 |  |  |  | 331 |  |  |  | (260 | ) |  |  | 3,941 |
Electric fuel and other energy-related purchases(1) |  | 690 |  |  |  | 198 |  |  |  | 24 |  |  |  | — |  |  |  | (2 | ) |  |  | 910 |
Purchased electric capacity(1) |  | 24 |  |  |  | 2 |  |  |  | — |  |  |  | (1 | ) |  |  | (1 | ) |  |  | 24 |
Purchased gas(1) |  | — |  |  |  | 34 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 34 |
Other operations and maintenance(1)(2) |  | 574 |  |  |  | 167 |  |  |  | 117 |  |  |  | 419 |  |  |  | (255 | ) |  |  | 1,022 |
Depreciation and amortization(1) |  | 374 |  |  |  | 136 |  |  |  | 19 |  |  |  | 20 |  |  |  | — |  |  |  | 549 |
Other taxes(1) |  | 83 |  |  |  | 77 |  |  |  | 13 |  |  |  | 13 |  |  |  | (2 | ) |  |  | 184 |
Total Operating Expenses |  | 1,745 |  |  |  | 614 |  |  |  | 173 |  |  |  | 451 |  |  |  | (260 | ) |  |  | 2,723 |
Interest and related charges(1) |  | 241 |  |  |  | 70 |  |  |  | 8 |  |  |  | 144 |  |  |  | (59 | ) |  |  | 404 |
Income tax expense (benefit)(1) |  | 148 |  |  |  | 20 |  |  |  | 28 |  |  |  | 17 |  |  |  | — |  |  |  | 213 |
Equity in earnings (losses) of equity method investees(3) |  | — |  |  |  | — |  |  |  | 4 |  |  |  | (3 | ) |  |  | — |  |  |  | 1 |
Other income (expense)(3) |  | 27 |  |  |  | 1 |  |  |  | (5 | ) |  |  | 289 |  |  |  | — |  |  |  | 312 |
Interest income(3) |  | 7 |  |  |  | 2 |  |  |  | 33 |  |  |  | 52 |  |  |  | (59 | ) |  |  | 35 |
Net Loss From Discontinued Operations Including Noncontrolling Interests |  | — |  |  |  | — |  |  |  | — |  |  |  | (15 | ) |  |  | — |  |  |  | (15 | )
Net Income Attributable to Dominion Energy | $ | 662 |  |  | $ | 147 |  |  | $ | 83 |  |  | $ | 42 |  |  | $ | — |  |  | $ | 934 |

(1)
The significant expense categories and amounts in the segment information presented above align with the segment-level information that is regularly provided to Dominion Energy’s CODM.
(2)
Includes impairment of assets and other charges.
(3)
Items designated are other segment items for each reportable segment.
(4)
Excludes liability to Atlantic Coast Pipeline.

61

Nine Months Ended September 30, | Dominion Energy Virginia |  |  | Dominion Energy South Carolina |  |  | Contracted Energy |  |  | Corporate and Other |  |  | Adjustments & Eliminations |  |  | Consolidated Total |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from external customers | $ | 8,818 |  |  | $ | 2,724 |  |  | $ | 834 |  |  | $ | 37 |  |  | $ | — |  |  | $ | 12,413 |
Intersegment revenue |  | (1 | ) |  |  | 8 |  |  |  | 15 |  |  |  | 901 |  |  |  | (923 | ) |  |  | — |
Total Operating Revenue |  | 8,817 |  |  |  | 2,732 |  |  |  | 849 |  |  |  | 938 |  |  |  | (923 | ) |  |  | 12,413 |
Electric fuel and other energy-related purchases(1) |  | 2,569 |  |  |  | 605 |  |  |  | 81 |  |  |  | — |  |  |  | (10 | ) |  |  | 3,245 |
Purchased electric capacity(1) |  | 56 |  |  |  | 9 |  |  |  | — |  |  |  | — |  |  |  | (2 | ) |  |  | 63 |
Purchased gas(1) |  | — |  |  |  | 220 |  |  |  | 1 |  |  |  | — |  |  |  | — |  |  |  | 221 |
Other operations and maintenance(1)(2) |  | 1,671 |  |  |  | 516 |  |  |  | 378 |  |  |  | 1,195 |  |  |  | (903 | ) |  |  | 2,857 |
Depreciation and amortization(1) |  | 1,208 |  |  |  | 423 |  |  |  | 74 |  |  |  | 66 |  |  |  | — |  |  |  | 1,771 |
Other taxes(1) |  | 281 |  |  |  | 231 |  |  |  | 45 |  |  |  | 49 |  |  |  | (8 | ) |  |  | 598 |
Total Operating Expenses |  | 5,785 |  |  |  | 2,004 |  |  |  | 579 |  |  |  | 1,310 |  |  |  | (923 | ) |  |  | 8,755 |
Interest and related charges(1) |  | 733 |  |  |  | 210 |  |  |  | 31 |  |  |  | 694 |  |  |  | (155 | ) |  |  | 1,513 |
Income tax expense (benefit)(1) |  | 412 |  |  |  | 100 |  |  |  | 7 |  |  |  | (43 | ) |  |  | — |  |  |  | 476 |
Equity in earnings (losses) of equity method investees(3) |  | — |  |  |  | — |  |  |  | — |  |  |  | (8 | ) |  |  | — |  |  |  | (8 | )
Other income (expense)(3) |  | 119 |  |  |  | — |  |  |  | (1 | ) |  |  | 674 |  |  |  | — |  |  |  | 792 |
Interest income(3) |  | 17 |  |  |  | 11 |  |  |  | 90 |  |  |  | 137 |  |  |  | (155 | ) |  |  | 100 |
Net Income from Discontinued Operations Including Noncontrolling Interests |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Noncontrolling Interests(3) |  | 234 |  |  |  | — |  |  |  | — |  |  |  | (112 | ) |  |  | — |  |  |  | 122 |
Net Income (Loss) Attributable to Dominion Energy | $ | 1,789 |  |  | $ | 429 |  |  | $ | 321 |  |  | $ | (108 | ) |  | $ | — |  |  | $ | 2,431 |
Investment in equity method investees(4) | $ | — |  |  | $ | — |  |  | $ | 98 |  |  | $ | 40 |  |  | $ | — |  |  | $ | 138 |
Capital expenditures |  | 7,695 |  |  |  | 832 |  |  |  | 682 |  |  |  | 56 |  |  |  | 2 |  |  |  | 9,267 |
Total assets (billions) |  | 77.4 |  |  |  | 18.9 |  |  |  | 11.5 |  |  |  | 9.0 |  |  |  | (5.2 | ) |  |  | 111.6 |
2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from external customers | $ | 7,786 |  |  | $ | 2,496 |  |  | $ | 843 |  |  | $ | (66 | ) |  | $ | — |  |  | $ | 11,059 |
Intersegment revenue |  | 2 |  |  |  | 7 |  |  |  | 9 |  |  |  | 743 |  |  |  | (761 | ) |  |  | — |
Total Operating Revenue |  | 7,788 |  |  |  | 2,503 |  |  |  | 852 |  |  |  | 677 |  |  |  | (761 | ) |  |  | 11,059 |
Electric fuel and other energy-related purchases(1) |  | 2,098 |  |  |  | 617 |  |  |  | 78 |  |  |  | — |  |  |  | (6 | ) |  |  | 2,787 |
Purchased electric capacity(1) |  | 53 |  |  |  | 6 |  |  |  | — |  |  |  | — |  |  |  | (2 | ) |  |  | 57 |
Purchased gas(1) |  | — |  |  |  | 198 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 198 |
Other operations and maintenance(1)(2) |  | 1,629 |  |  |  | 503 |  |  |  | 329 |  |  |  | 1,100 |  |  |  | (747 | ) |  |  | 2,814 |
Depreciation and amortization(1) |  | 1,263 |  |  |  | 408 |  |  |  | 56 |  |  |  | 64 |  |  |  | — |  |  |  | 1,791 |
Other taxes(1) |  | 247 |  |  |  | 226 |  |  |  | 40 |  |  |  | 49 |  |  |  | (6 | ) |  |  | 556 |
Total Operating Expenses |  | 5,290 |  |  |  | 1,958 |  |  |  | 503 |  |  |  | 1,213 |  |  |  | (761 | ) |  |  | 8,203 |
Interest and related charges(1) |  | 639 |  |  |  | 203 |  |  |  | 28 |  |  |  | 718 |  |  |  | (139 | ) |  |  | 1,449 |
Income tax expense (benefit)(1) |  | 382 |  |  |  | 52 |  |  |  | 103 |  |  |  | (116 | ) |  |  | — |  |  |  | 421 |
Equity in earnings (losses) of equity method investees(3) |  | — |  |  |  | — |  |  |  | 3 |  |  |  | (3 | ) |  |  | — |  |  |  | — |
Other income (expense)(3) |  | 77 |  |  |  | 1 |  |  |  | (12 | ) |  |  | 542 |  |  |  | — |  |  |  | 608 |
Interest income(3) |  | 17 |  |  |  | 5 |  |  |  | 96 |  |  |  | 127 |  |  |  | (139 | ) |  |  | 106 |
Net Income From Discontinued Operations Including Noncontrolling Interests |  | — |  |  |  | — |  |  |  | — |  |  |  | 200 |  |  |  | — |  |  |  | 200 |
Net Income (Loss) Attributable to Dominion Energy | $ | 1,571 |  |  | $ | 296 |  |  | $ | 305 |  |  | $ | (272 | ) |  | $ | — |  |  | $ | 1,900 |
Capital expenditures | $ | 7,034 |  |  | $ | 767 |  |  | $ | 572 |  |  | $ | 548 |  |  | $ | — |  |  | $ | 8,921 |

(1)
The significant expense categories and amounts in the segment information presented above align with the segment-level information that is regularly provided to Dominion Energy’s CODM.
(2)
Includes impairment of assets and other charges.
(3)
Items designated are other segment items for each reportable segment.
(4)
Excludes liability to Atlantic Coast Pipeline.

Intersegment sales and transfers for Dominion Energy are based on contractual arrangements and may result in intersegment profit or loss that is eliminated in consolidation, including amounts related to entities presented within discontinued operations.

62

Virginia Power

The Corporate and Other Segment of Virginia Power primarily includes specific items attributable to its operating segment that are not included in profit measures evaluated by executive management in assessing the segment’s performance or in allocating resources.

Virginia Power’s CODM is the CEO. The Virginia Power CODM uses net income (loss) as the primary profit or loss measure at each segment. The Virginia Power CODM considers budget-to-actual variances on a quarterly basis when making decisions about allocating operating and capital resources to each segment, when assessing the performance of each segment and when determining the compensation of certain employees.

In the nine months ended September 30, 2025, Virginia Power reported after-tax net expenses of $101 million in the Corporate and Other segment, including $127 million of after-tax net expenses for specific items all of which was attributable to its operating segment. In the nine months ended September 30, 2024, Virginia Power reported after-tax net income of $17 million in the Corporate and Other segment, including $15 million of after-tax net income for specific items all of which was attributable to its operating segment.

The net expenses for specific items attributable to Virginia Power’s operating segment in 2025 primarily related to the impact of the following items:

•
A $112 million ($84 million after-tax) charge for Virginia Power’s share of costs not expected to be recovered from customers on the CVOW Commercial Project; and
•
A $106 million ($79 million after-tax) loss associated with severe weather events; partially offset by
•
A $59 million ($34 million after-tax) gain related to investments in nuclear decommissioning trust funds.

The net income for specific items attributable to Virginia Power’s operating segment in 2024 primarily related to the impact of the following item:

•
A $74 million ($45 million after-tax) gain related to investments in nuclear decommissioning trust funds; partially offset by
•
A $30 million ($22 million after-tax) charge related to the write-off of certain early-stage development costs.

The following tables present segment information pertaining to Virginia Power’s operations:

Three Months Ended September 30, |  | Dominion Energy Virginia |  |  | Corporate and Other |  |  | Consolidated Total |
(millions) |  |  |  |  |  |  |  |  |
2025 |  |  |  |  |  |  |  |  |
Operating Revenue |  | $ | 3,311 |  |  | $ | — |  |  | $ | 3,311 |
Electric fuel and other energy-related purchases(1) |  |  | 1,071 |  |  |  | — |  |  |  | 1,071 |
Purchased electric capacity(1) |  |  | 32 |  |  |  | — |  |  |  | 32 |
Other operations and maintenance(1)(2) |  |  | 581 |  |  |  | 125 |  |  |  | 706 |
Depreciation and amortization(1) |  |  | 415 |  |  |  | 3 |  |  |  | 418 |
Other taxes(1) |  |  | 92 |  |  |  | 1 |  |  |  | 93 |
Total Operating Expenses |  |  | 2,191 |  |  |  | 129 |  |  |  | 2,320 |
Interest and related charges(1) |  |  | 236 |  |  |  | (1 | ) |  |  | 235 |
Income tax expense (benefit)(1) |  |  | 169 |  |  |  | (18 | ) |  |  | 151 |
Other income (expense)(3) |  |  | 45 |  |  |  | 34 |  |  |  | 79 |
Interest income(3) |  |  | 5 |  |  |  | 1 |  |  |  | 6 |
Noncontrolling Interests(3) |  |  | 86 |  |  |  | (64 | ) |  |  | 22 |
Net Income (Loss) Attributable to Virginia Power |  | $ | 679 |  |  | $ | (11 | ) |  | $ | 668 |
Total assets (billions) |  | $ | 75.9 |  |  | $ | — |  |  | $ | 75.9 |
2024 |  |  |  |  |  |  |  |  |
Operating Revenue |  | $ | 2,762 |  |  | $ | — |  |  | $ | 2,762 |
Electric fuel and other energy-related purchases(1) |  |  | 690 |  |  |  | — |  |  |  | 690 |
Purchased electric capacity(1) |  |  | 24 |  |  |  | — |  |  |  | 24 |
Other operations and maintenance(1)(2) |  |  | 574 |  |  |  | 40 |  |  |  | 614 |
Depreciation and amortization(1) |  |  | 374 |  |  |  | 1 |  |  |  | 375 |
Other taxes(1) |  |  | 83 |  |  |  | — |  |  |  | 83 |
Total Operating Expenses |  |  | 1,745 |  |  |  | 41 |  |  |  | 1,786 |
Interest and related charges(1) |  |  | 241 |  |  |  | (2 | ) |  |  | 239 |
Income tax expense (benefit)(1) |  |  | 148 |  |  |  | (2 | ) |  |  | 146 |
Other income(3) |  |  | 27 |  |  |  | 25 |  |  |  | 52 |
Interest income(3) |  |  | 7 |  |  |  | — |  |  |  | 7 |
Net Income (Loss) Attributable to Virginia Power |  | $ | 662 |  |  | $ | (12 | ) |  | $ | 650 |

(1)
The significant expense categories and amounts in the segment information presented above align with the segment-level information that is regularly provided to Virginia Power’s CODM.
(2)
Includes impairment of assets and other charges.
(3)
Items designated are other segment items for each reportable segment.

63

Nine Months Ended September 30, |  | Dominion Energy Virginia |  |  | Corporate and Other |  |  | Consolidated Total |
(millions) |  |  |  |  |  |  |  |  |
2025 |  |  |  |  |  |  |  |  |
Operating Revenue |  | $ | 8,817 |  |  | $ | (29 | ) |  | $ | 8,788 |
Electric fuel and other energy-related purchases(1) |  |  | 2,569 |  |  |  | — |  |  |  | 2,569 |
Purchased electric capacity(1) |  |  | 56 |  |  |  | — |  |  |  | 56 |
Other operations and maintenance(1)(2) |  |  | 1,671 |  |  |  | 294 |  |  |  | 1,965 |
Depreciation and amortization(1) |  |  | 1,208 |  |  |  | 4 |  |  |  | 1,212 |
Other taxes(1) |  |  | 281 |  |  |  | 1 |  |  |  | 282 |
Total Operating Expenses |  |  | 5,785 |  |  |  | 299 |  |  |  | 6,084 |
Interest and related charges(1) |  |  | 733 |  |  |  | (4 | ) |  |  | 729 |
Income tax expense (benefit)(1) |  |  | 412 |  |  |  | (56 | ) |  |  | 356 |
Other income (expense)(3) |  |  | 119 |  |  |  | 54 |  |  |  | 173 |
Interest income(3) |  |  | 17 |  |  |  | 1 |  |  |  | 18 |
Noncontrolling Interests(3) |  |  | 234 |  |  |  | (112 | ) |  |  | 122 |
Net Income (Loss) Attributable to Virginia Power |  | $ | 1,789 |  |  | $ | (101 | ) |  | $ | 1,688 |
Capital expenditures |  | $ | 7,690 |  |  | $ | — |  |  | $ | 7,690 |
Total assets (billions) |  |  | 75.9 |  |  |  | — |  |  |  | 75.9 |
2024 |  |  |  |  |  |  |  |  |
Operating Revenue |  | $ | 7,788 |  |  | $ | — |  |  | $ | 7,788 |
Electric fuel and other energy-related purchases(1) |  |  | 2,098 |  |  |  | — |  |  |  | 2,098 |
Purchased electric capacity(1) |  |  | 53 |  |  |  | — |  |  |  | 53 |
Other operations and maintenance(1)(2) |  |  | 1,629 |  |  |  | 34 |  |  |  | 1,663 |
Depreciation and amortization(1) |  |  | 1,263 |  |  |  | 5 |  |  |  | 1,268 |
Other taxes(1) |  |  | 247 |  |  |  | 1 |  |  |  | 248 |
Total Operating Expenses |  |  | 5,290 |  |  |  | 40 |  |  |  | 5,330 |
Interest and related charges(1) |  |  | 639 |  |  |  | (6 | ) |  |  | 633 |
Income tax expense(1) |  |  | 382 |  |  |  | 17 |  |  |  | 399 |
Other income(3) |  |  | 77 |  |  |  | 62 |  |  |  | 139 |
Interest income(3) |  |  | 17 |  |  |  | 6 |  |  |  | 23 |
Net Income Attributable to Virginia Power |  | $ | 1,571 |  |  | $ | 17 |  |  | $ | 1,588 |
Capital expenditures |  | $ | 7,034 |  |  | $ | — |  |  | $ | 7,034 |

(1)
The significant expense categories and amounts in the segment information presented above align with the segment-level information that is regularly provided to Virginia Power’s CODM.
(2)
Includes impairment of assets and other charges.
(3)
Items designated are other segment items for each reportable segment.

64

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

MD&A discusses Dominion Energy’s results of operations, general financial condition and liquidity and Virginia Power’s results of operations. MD&A should be read in conjunction with the Companies’ Consolidated Financial Statements. Virginia Power meets the conditions to file under the reduced disclosure format, and therefore has omitted certain sections of MD&A.

Contents of MD&A

MD&A consists of the following information:

•
Forward-Looking Statements—Dominion Energy and Virginia Power
•
Accounting Matters—Dominion Energy
•
Results of Operations—Dominion Energy and Virginia Power
•
Segment Results of Operations—Dominion Energy
•
Outlook—Dominion Energy
•
Liquidity and Capital Resources—Dominion Energy
•
Future Issues and Other Matters—Dominion Energy

Forward-Looking Statements

This report contains statements concerning the Companies’ expectations, plans, objectives, future financial performance and other statements that are not historical facts. These statements are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. In most cases, the reader can identify these forward-looking statements by such words as “path,” “anticipate,” “estimate,” “forecast,” “expect,” “believe,” “should,” “could,” “plan,” “may,” “continue,” “target” or other similar words.

The Companies make forward-looking statements with full knowledge that risks and uncertainties exist that may cause actual results to differ materially from predicted results. Factors that may cause actual results to differ are often presented with the forward-looking statements themselves. Additionally, other factors may cause actual results to differ materially from those indicated in any forward-looking statement. These factors include but are not limited to:

•
Unusual weather conditions and their effect on energy sales to customers and energy commodity prices;
•
Extreme weather events and other natural disasters, including, but not limited to, hurricanes, high winds, severe storms, earthquakes, flooding, wildfires, climate changes and changes in water temperatures and availability that can cause outages and property damage to facilities;
•
The impact of extraordinary external events, such as the pandemic health event resulting from COVID-19, and their collateral consequences, including extended disruption of economic activity in the Companies’ markets and global supply chains;
•
Federal, state and local legislative and regulatory developments;
•
Changes in or interpretations of federal and state tax laws and regulations, including those related to tax credits or other incentives;
•
Risks of operating businesses in regulated industries that are subject to changing regulatory structures;
•
Changes to regulated electric rates collected by the Companies and regulated gas distribution rates collected by Dominion Energy;
•
Changes in rules for RTOs and ISOs in which the Companies join and/or participate, including changes in rate designs, changes in FERC’s interpretation of market rules and new and evolving capacity models;
•
Risks associated with Virginia Power’s membership and participation in PJM, including risks related to obligations created by the default of other participants;
•
Risks associated with entities in which the Companies share ownership with third parties, such as Stonepeak’s noncontrolling interest in the CVOW Commercial Project, including risks that result from lack of sole decision-making authority, disputes that may arise between the Companies and third party participants and difficulties in exiting these arrangements;
•
Timing and receipt of regulatory approvals necessary for planned construction or growth projects and compliance with conditions associated with such regulatory approvals;
•
The inability to complete planned construction, conversion or growth projects at all, or with the outcomes or within the terms and time frames initially anticipated, including as a result of increased public involvement, intervention or litigation in such projects;
•
Risks and uncertainties that may impact the Companies’ ability to construct the CVOW Commercial Project within the currently proposed timeline, or at all, and consistent with current cost estimates along with the ability to recover such costs from customers;
•
Risks and uncertainties associated with the timely receipt of future capital contributions, including optional capital contributions, if any, from Stonepeak associated with the construction of the CVOW Commercial Project;
•
Changes to federal, state and local environmental laws and regulations, including those related to climate change, the tightening of emission or discharge limits for GHGs and other substances, more extensive permitting requirements and the regulation of additional substances;
•
Cost of environmental strategy and compliance, including those costs related to climate change;
•
Changes in implementation and enforcement practices of regulators relating to environmental standards and litigation exposure for remedial activities;
•
Difficulty in anticipating mitigation requirements associated with environmental and other regulatory approvals or related appeals;
•
Unplanned outages at facilities in which the Companies have an ownership interest;
•
The impact of operational hazards, including adverse developments with respect to plant safety or integrity,

65

equipment loss, malfunction or failure, operator error and other catastrophic events;
•
Risks associated with the operation of nuclear facilities, including costs associated with the disposal of spent nuclear fuel, decommissioning, plant maintenance and changes in existing regulations governing such facilities;
•
Changes in operating, maintenance and construction costs;
•
The availability of nuclear fuel, natural gas, purchased power or other materials utilized by the Companies to provide electric generation, transmission and distribution and/or gas distribution services to their customers;
•
Domestic terrorism and other threats to the Companies’ physical and intangible assets, as well as threats to cybersecurity;
•
Additional competition in industries in which the Companies operate, including in electric markets in which Dominion Energy’s nonregulated generation facilities operate and potential competition from the development and deployment of alternative energy sources, such as self-generation and distributed generation technologies, and availability of market alternatives to large commercial and industrial customers;
•
Competition in the development, construction and ownership of certain electric transmission facilities in the Companies’ service territory in connection with Order 1000;
•
Changes in technology, particularly with respect to new, developing or alternative sources of generation and smart grid technologies;
•
Changes in demand for the Companies’ services, including industrial, commercial and residential growth or decline in the Companies’ service areas, failure to maintain or replace customer contracts on favorable terms, changes in customer growth or usage patterns, including as a result of energy conservation programs, the availability of energy efficient devices and the use of distributed generation methods;
•
Risks and uncertainties associated with increased energy demand or significant accelerated growth in demand due to new data centers, including the concentration of data centers primarily in Loudoun County, Virginia and the ability to obtain regulatory approvals, environmental and other permits to construct new facilities in a timely manner;
•
The technological and economic feasibility of large-scale battery storage, carbon capture and storage, small modular reactors, hydrogen and/or other clean energy technologies;
•
Receipt of approvals for, and timing of, closing dates for acquisitions and divestitures;
•
Impacts of acquisitions, divestitures, transfers of assets to joint ventures and retirements of assets based on asset portfolio reviews;
•
Adverse outcomes in litigation matters or regulatory proceedings;
•
Counterparty credit and performance risk;
•
Fluctuations in the value of investments held in nuclear decommissioning trusts by the Companies and in benefit plan trusts by Dominion Energy;
•
Fluctuations in energy-related commodity prices and the effect these could have on Dominion Energy’s earnings and the Companies’ liquidity position and the underlying value of their assets;
•
Fluctuations in interest rates;
•
Changes in rating agency requirements or credit ratings and their effect on availability and cost of capital;
•
Global capital market conditions, including the availability of credit and the ability to obtain financing on reasonable terms;
•
Political and economic conditions, including tariffs, inflation and deflation;
•
Employee workforce factors including collective bargaining agreements and labor negotiations with union employees; and
•
Changes in financial or regulatory accounting principles or policies imposed by governing bodies.

Additionally, other risks that could cause actual results to differ from predicted results are set forth in Part I. Item 1A. Risk Factors in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

The Companies’ forward-looking statements are based on beliefs and assumptions using information available at the time the statements are made. The Companies caution the reader not to place undue reliance on their forward-looking statements because the assumptions, beliefs, expectations and projections about future events may, and often do, differ materially from actual results. The Companies undertake no obligation to update any forward-looking statement to reflect developments occurring after the statement is made.

Accounting Matters

As of September 30, 2025, there have been no significant changes with regard to the critical accounting policies and estimates disclosed in MD&A in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024. The policies disclosed included the accounting for regulated operations, AROs, income taxes, accounting for derivative contracts and financial instruments at fair value, use of estimates in goodwill impairment testing, use of estimates in long-lived asset impairment testing, held for sale classification and employee benefit plans.

66

Results of Operations—Dominion Energy

Presented below is a summary of Dominion Energy’s consolidated results:

|  | 2025 |  |  | 2024 |  |  | $ Change |
(millions, except EPS) |  |  |  |  |  |  |  |  |
Third Quarter |  |  |  |  |  |  |  |  |
Net income attributable to Dominion Energy |  | $ | 1,006 |  |  | $ | 934 |  |  | $ | 72 |
Diluted EPS |  |  | 1.16 |  |  |  | 1.09 |  |  |  | 0.07 |
Year-To-Date |  |  |  |  |  |  |  |  |
Net income attributable to Dominion Energy |  | $ | 2,431 |  |  | $ | 1,900 |  |  | $ | 531 |
Diluted EPS |  |  | 2.81 |  |  |  | 2.19 |  |  |  | 0.62 |

Overview

Third Quarter 2025 vs. 2024

Net income attributable to Dominion Energy increased 8%, primarily due to higher rider equity returns reflecting capital investments at Virginia Power and an increase in net investment earnings on nuclear decommissioning trust funds, partially offset by decreased unrealized gains on economic hedging activities and a 50% noncontrolling interest in the CVOW Commercial Project sold to Stonepeak in October 2024, including impacts of a charge for costs not expected to be recovered from customers.

Year-To-Date 2025 vs. 2024

Net income attributable to Dominion Energy increased 28%, primarily due to the absence of lower market-related impacts on pension and other postretirement plans, higher rider equity returns reflecting capital investments at Virginia Power, an increase in non-fuel base rates associated with the settlement of the 2024 electric base rate case in South Carolina, the absence of an impairment associated with the Questar Gas Transaction, an increase in sales to electric utility retail customers associated with economic and other usage factors and an increase in renewable energy tax credits. These increases were partially offset by a 50% noncontrolling interest in the CVOW Commercial Project sold to Stonepeak in October 2024, including impacts of charges for costs not expected to be recovered from customers, a decrease in net investment earnings on nuclear decommissioning trust funds, an increase in charges associated with severe weather events, including storm damage and restoration costs, affecting Virginia Power and the closings of the East Ohio, Questar Gas and PSNC Transactions.

Analysis of Consolidated Operations

Presented below are selected amounts related to Dominion Energy’s results of operations:

| Third Quarter |  | Year-To-Date |
| 2025 |  | 2024 |  | $ Change |  | 2025 |  | 2024 |  | $ Change |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue | $ | 4,527 |  | $ | 3,941 |  | $ | 586 |  | $ | 12,413 |  | $ | 11,059 |  | $ | 1,354 |
Electric fuel and other energy-related purchases |  | 1,337 |  |  | 910 |  |  | 427 |  |  | 3,245 |  |  | 2,787 |  |  | 458 |
Purchased electric capacity |  | 36 |  |  | 24 |  |  | 12 |  |  | 63 |  |  | 57 |  |  | 6 |
Purchased gas |  | 31 |  |  | 34 |  |  | (3 | ) |  | 221 |  |  | 198 |  |  | 23 |
Other operations and maintenance |  | 850 |  |  | 900 |  |  | (50 | ) |  | 2,631 |  |  | 2,595 |  |  | 36 |
Depreciation and amortization |  | 609 |  |  | 549 |  |  | 60 |  |  | 1,771 |  |  | 1,791 |  |  | (20 | )
Other taxes |  | 195 |  |  | 184 |  |  | 11 |  |  | 598 |  |  | 556 |  |  | 42 |
Impairment of assets and other charges |  | 130 |  |  | 122 |  |  | 8 |  |  | 226 |  |  | 219 |  |  | 7 |
Other income (expense) |  | 432 |  |  | 348 |  |  | 84 |  |  | 884 |  |  | 714 |  |  | 170 |
Interest and related charges |  | 527 |  |  | 404 |  |  | 123 |  |  | 1,513 |  |  | 1,449 |  |  | 64 |
Income tax expense |  | 216 |  |  | 213 |  |  | 3 |  |  | 476 |  |  | 421 |  |  | 55 |
Net income (loss) from discontinued operations including noncontrolling interests |  | — |  |  | (15 | ) |  | 15 |  |  | — |  |  | 200 |  |  | (200 | )
Noncontrolling interests |  | 22 |  |  | — |  |  | 22 |  |  | 122 |  |  | — |  |  | 122 |

An analysis of Dominion Energy’s results of operations follows:

Third Quarter 2025 vs. 2024

Operating revenue increased 15%, primarily reflecting:

•
A $311 million net increase in fuel-related revenue as a result of an increase in commodity costs associated with sales to electric utility retail customers, including revenue for the deferred fuel securitization;
•
A $237 million increase to recover the costs and an authorized return, as applicable, associated with Virginia Power non-fuel riders;
•
A $48 million increase in sales to electric utility retail customers associated with economic and other usage factors;
•
A $45 million increase in non-fuel base rates associated with the settlement of the 2024 electric base rate case in South Carolina;
•
A $22 million increase due to the absence of one-time credits to customers associated with the 2023 Biennial Review and the 2024 electric base rate case in South Carolina; and
•
A $21 million increase in sales to electric utility retail customers associated with growth.

67

These increases were partially offset by:

•
A $91 million net decrease associated with market prices affecting Millstone, including economic hedging impacts of net realized and unrealized losses on freestanding derivatives ($115 million); and
•
A $68 million decrease in sales to electric utility retail customers, primarily due to a decrease in cooling degree days.

Electric fuel and other energy-related purchases increased 47%, primarily due to higher commodity costs for electric utilities ($321 million) and an increase in the use of purchased renewable energy credits ($112 million), which are offset in operating revenue and do not impact net income.

Other operations and maintenance decreased 6%, primarily due to a decrease in certain Virginia Power expenditures which are primarily recovered through state- and FERC-regulated rates and do not impact net income ($25 million) and a decrease in outage costs, primarily at Millstone ($14 million).

Depreciation and amortization increased 11%, primarily due to various projects being placed into service.

Impairment of assets and other charges increased 7%, primarily due to a charge for costs not expected to be recovered from customers on 100% of the CVOW Commercial Project ($128 million), partially offset by the absence of a $55 million charge in connection with the 2024 electric base rate case in South Carolina primarily to write down certain materials and supplies inventory, the absence of a charge related to the write-off of certain early-stage development costs at Virginia Power ($30 million) and the absence of a charge for the impairment of certain nonregulated renewable natural gas facilities ($27 million).

Other income increased 24%, primarily due to an increase in net investment gains on nuclear decommissioning trust funds ($94 million), partially offset by a decrease in non-service components of pension and other postretirement employee benefit plan credits ($36 million).

Interest and related charges increased 30%, primarily due to unrealized losses in 2025 compared to unrealized gains in 2024 associated with freestanding derivatives ($81 million) and an increase in net issuances of long-term debt ($75 million), partially offset by decreased interest expense associated with rider deferrals ($16 million), which is offset in operating revenue and does not impact net income, and the absence of charges incurred due to early debt repayments associated with the business review completed in March 2024 ($13 million).

Income tax expense increased 1%, primarily due to the absence of a benefit associated with the effective settlement of an uncertain tax position ($14 million), higher taxes on earnings within qualified decommissioning trusts ($13 million) and higher pre-tax income ($12 million), partially offset by an increase in renewable energy tax credits ($39 million).

Net income from discontinued operations including noncontrolling interests increased $15 million, primarily due to the absence of a loss on the closing of the PSNC Transaction.

Noncontrolling interests increased $22 million, due to the 50% noncontrolling interest in the CVOW Commercial Project sold to Stonepeak in October 2024, consisting of Stonepeak’s share of the earnings associated with the CVOW Commercial Project subsequent to closing, which includes a $64 million share of a charge for costs not expected to be recovered from customers on the CVOW Commercial Project.

Year-To-Date 2025 vs. 2024

Operating revenue increased 12%, primarily reflecting:

•
A $586 million increase to recover the costs and an authorized return, as applicable, associated with Virginia Power non-fuel riders;
•
A $236 million net increase in fuel-related revenue as a result of an increase in commodity costs associated with sales to electric utility retail customers ($214 million), including revenue for the deferred fuel securitization and electric utility customers who elect to pay market based or other negotiated rates and related settlements of economic hedges at Virginia Power effective March 2024 and an increase in commodity costs associated with sales to gas utility customers ($22 million);
•
A $150 million increase in non-fuel base rates associated with the settlement of the 2024 electric base rate case in South Carolina;
•
A $131 million increase in sales to electric utility retail customers associated with economic and other usage factors;
•
A $62 million net increase associated with market prices affecting Millstone, including economic hedging impacts of net realized and unrealized losses on freestanding derivatives ($103 million);
•
A $54 million increase in sales to electric utility retail customers associated with growth;
•
A $40 million increase in transition service agreements primarily associated with the East Ohio, Questar Gas and PSNC Transactions;
•
A $36 million increase associated with prices from non-jurisdictional solar generation facilities at Virginia Power;
•
A $22 million increase due to the absence of one-time credits to customers associated with the 2023 Biennial Review and the 2024 electric base rate case in South Carolina; and
•
A $12 million net increase in sales to electric utility retail customers, primarily due to an increase in heating degree days during the heating season ($99 million), partially offset by a decrease in cooling degree days during the cooling season ($87 million).

These increases were partially offset by:

•
A $29 million decrease associated with severe weather events affecting Virginia Power; and
•
A $22 million net decrease associated with outages at Millstone attributable to the relative effects of a planned outage ($46 million), partially offset by fewer unplanned outages ($24 million).

68

Electric fuel and other energy-related purchases increased 16%, primarily due to an increase in the use of purchased renewable energy credits ($227 million) and higher commodity costs for electric utilities ($218 million), which are offset in operating revenue and do not impact net income.

Purchased gas increased 12%, primarily due to an increase in commodity costs for gas utility operations, which are offset in operating revenue and do not impact net income.

Other operations and maintenance increased 1%, primarily due to an increase in charges associated with severe weather events, including storm damage and restoration costs, affecting Virginia Power ($70 million), an increase in outage costs at Millstone ($37 million) and an increase in outside services ($23 million), partially offset by the absence of costs associated with the business review completed in March 2024 ($38 million) and a decrease in certain Virginia Power expenditures which are primarily recovered through state- and FERC-regulated rates and do not impact net income ($34 million).

Depreciation and amortization decreased 1%, primarily due to the absence of RGGI-related amortization ($182 million), which is offset in operating revenue and does not impact net income, partially offset by an increase due to various projects being placed into service ($128 million) and an increase in amortization associated with non-fuel riders ($24 million), which is offset in operating revenue and does not impact net income.

Impairment of assets and other charges increased 3%, primarily due to a charge for costs not expected to be recovered from customers on 100% of the CVOW Commercial Project ($224 million), partially offset by the absence of charges for the impairment of certain nonregulated renewable natural gas facilities ($60 million), the absence of a $55 million charge in connection with the 2024 electric base rate case in South Carolina primarily to write down certain materials and supplies inventory, the absence of a charge in connection with a settlement of an agreement ($47 million), the absence of a charge related to the write-off of certain early-stage development costs at Virginia Power ($30 million) and the absence of an impairment of a corporate office building ($17 million).

Other income increased 24%, primarily due to the absence of lower market-related impacts on pension and other postretirement plans ($334 million) and an increase in AFUDC associated with rate-regulated projects ($36 million), partially offset by a decrease in non-service components of pension and other postretirement employee benefit plan credits ($103 million), a decrease in net investment gains on nuclear decommissioning trust funds ($92 million) and a decrease in earnings from other investments ($21 million).

Interest and related charges increased 4%, primarily due to an increase in net issuances of long-term debt ($134 million) and unrealized losses in 2025 compared to unrealized gains in 2024 associated with freestanding derivatives ($65 million), partially offset by variable rate debt repaid from proceeds associated with the business review completed in March 2024 ($69 million), the absence of charges incurred due to early debt repayments associated with the business review completed in March 2024 ($25 million), lower interest rates on commercial paper ($20 million) and decreased interest expense associated with rider deferrals ($18 million), which is offset in operating revenue and does not impact net income.

Income tax expense increased 13%, primarily due to higher pre-tax income ($197 million), partially offset by an increase in renewable energy tax credits ($125 million).

Net income from discontinued operations including noncontrolling interests decreased $200 million, primarily due to the absence of earnings from operations following the closing of the Questar Gas Transaction ($184 million), PSNC Transaction ($138 million) and East Ohio Transaction ($82 million), the absence of a gain on the closing of the Questar Gas Transaction ($34 million) and the absence of a tax benefit associated with the Questar Gas Transaction ($25 million), partially offset by the absence of a loss on the closing of the East Ohio Transaction ($108 million), the absence of an impairment associated with the Questar Gas Transaction ($78 million), the absence of charges for employee benefit items related to the East Ohio Transaction ($33 million), the absence of a loss on the closing of the PSNC Transaction ($31 million) and the absence of tax expense associated with the PSNC Transaction ($16 million).

Noncontrolling interests increased $122 million, due to the 50% noncontrolling interest in the CVOW Commercial Project sold to Stonepeak in October 2024, consisting of Stonepeak’s share of the earnings associated with the CVOW Commercial Project subsequent to closing, which includes a $112 million share of a charge for costs not expected to be recovered from customers on the CVOW Commercial Project.

Results of Operations—Virginia Power

Presented below is a summary of Virginia Power’s consolidated results:

|  | 2025 |  |  | 2024 |  |  | $ Change |
(millions) |  |  |  |  |  |  |  |  |
Third Quarter |  |  |  |  |  |  |  |  |
Net income attributable to Virginia Power |  | $ | 668 |  |  | $ | 650 |  |  | $ | 18 |
Year-To-Date |  |  |  |  |  |  |  |  |
Net income attributable to Virginia Power |  | $ | 1,688 |  |  | $ | 1,588 |  |  | $ | 100 |

Overview

Third Quarter 2025 vs. 2024

Net income increased 3%, primarily due to higher rider equity returns reflecting capital investments, partially offset by a 50% noncontrolling interest in the CVOW Commercial Project sold to Stonepeak in October 2024, including impacts of a charge for costs not expected to be recovered from customers.

Year-To-Date 2025 vs. 2024

Net income increased 6%, primarily due to higher rider equity returns reflecting capital investments and an increase in sales to electric utility retail customers associated with economic and other usage factors, partially offset by a 50%

69

noncontrolling interest in the CVOW Commercial Project sold to Stonepeak in October 2024, including impacts of charges for costs not expected to be recovered from customers, an increase in interest on long-term debt borrowings and higher average outstanding principal on commercial paper and intercompany borrowings with Dominion Energy and an increase in charges associated with severe weather events, including storm damage and restoration costs.

Analysis of Consolidated Operations

Presented below are selected amounts related to Virginia Power’s results of operations:

| Third Quarter |  | Year-To-Date |
| 2025 |  | 2024 |  | $ Change |  | 2025 |  | 2024 |  | $ Change |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue | $ | 3,311 |  | $ | 2,762 |  | $ | 549 |  | $ | 8,788 |  | $ | 7,788 |  | $ | 1,000 |
Electric fuel and other energy-related purchases |  | 1,071 |  |  | 690 |  |  | 381 |  |  | 2,569 |  |  | 2,098 |  |  | 471 |
Purchased electric capacity |  | 32 |  |  | 24 |  |  | 8 |  |  | 56 |  |  | 53 |  |  | 3 |
Other operations and maintenance |  | 577 |  |  | 574 |  |  | 3 |  |  | 1,740 |  |  | 1,625 |  |  | 115 |
Depreciation and amortization |  | 418 |  |  | 375 |  |  | 43 |  |  | 1,212 |  |  | 1,268 |  |  | (56 | )
Other taxes |  | 93 |  |  | 83 |  |  | 10 |  |  | 282 |  |  | 248 |  |  | 34 |
Impairment of assets and other charges |  | 129 |  |  | 40 |  |  | 89 |  |  | 225 |  |  | 38 |  |  | 187 |
Other income (expense) |  | 85 |  |  | 59 |  |  | 26 |  |  | 191 |  |  | 162 |  |  | 29 |
Interest and related charges |  | 235 |  |  | 239 |  |  | (4 | ) |  | 729 |  |  | 633 |  |  | 96 |
Income tax expense |  | 151 |  |  | 146 |  |  | 5 |  |  | 356 |  |  | 399 |  |  | (43 | )
Noncontrolling interests |  | 22 |  |  | — |  |  | 22 |  |  | 122 |  |  | — |  |  | 122 |

An analysis of Virginia Power’s results of operations follows:

Third Quarter 2025 vs. 2024

Operating revenue increased 20%, primarily reflecting:

•
A $268 million net increase in fuel-related revenue as a result of an increase in commodity costs associated with sales to electric utility retail customers, including revenue for the deferred fuel securitization;
•
A $237 million increase to recover the costs and an authorized return, as applicable, associated with non-fuel riders;
•
A $42 million increase in sales to electric utility retail customers associated with economic and other usage factors;
•
A $16 million increase in sales to electric utility retail customers associated with growth;
•
A $15 million increase due to the absence of one-time credits to customers associated with the 2023 Biennial Review; and
•
A $10 million increase associated with prices from non-jurisdictional solar generation facilities.

These increases were partially offset by:

•
A $54 million decrease in sales to electric utility retail customers, primarily due to a decrease in cooling degree days.

Electric fuel and other energy-related purchases increased 55%, primarily due to higher commodity costs for electric utilities ($278 million) and an increase in the use of purchased renewable energy credits ($112 million), which are offset in operating revenue and do not impact net income.

Other operations and maintenance increased 1%, primarily due to an increase in salaries, wages and benefits and administrative costs ($39 million) and an increase in outside services ($18 million), partially offset by a decrease in certain expenditures which are primarily recovered through state- and FERC-regulated rates and do not impact net income ($25 million).

Depreciation and amortization increased 11%, primarily due to an increase due to various projects being placed into service ($29 million) and an increase in amortization associated with non-fuel riders ($12 million), which is offset in operating revenue and does not impact net income.

Other taxes increased 12%, primarily due to an increase in property taxes.

Impairment of assets and other charges increased $89 million, primarily due to a charge for costs not expected to be recovered from customers on 100% of the CVOW Commercial Project ($128 million), partially offset by the absence of a charge related to the write-off of certain early-stage development costs ($30 million).

Other income increased 44%, primarily due to an increase in AFUDC associated with rate-regulated projects.

Interest and related charges decreased 2%, primarily due to decreased interest expense associated with rider deferrals ($16 million), which is offset in operating revenue and does not impact net income, partially offset by an increase in long-term debt borrowings ($22 million).

Noncontrolling interests increased $22 million, due to the 50% noncontrolling interest in the CVOW Commercial Project sold to Stonepeak in October 2024, consisting of Stonepeak’s share of the earnings associated with the CVOW Commercial Project subsequent to closing, which includes a $64 million share of a charge for costs not expected to be recovered from customers on the CVOW Commercial Project.

Year-To-Date 2025 vs. 2024

Operating revenue increased 13%, primarily reflecting:

•
A $586 million increase to recover the costs and an authorized return, as applicable, associated with non-fuel riders;
•
A $223 million net increase in fuel-related revenue as a result of an increase in commodity costs associated with sales to electric utility retail customers, including revenue for the deferred fuel securitization and electric utility customers who elect to pay market based or other

70

negotiated rates and related settlements of economic hedges effective March 2024;
•
A $116 million increase in sales to electric utility retail customers associated with economic and other usage factors;
•
A $45 million increase in sales to electric utility retail customers associated with growth;
•
A $36 million increase associated with prices from non-jurisdictional solar generation facilities;
•
A $15 million increase due to the absence of one-time credits to customers associated with the 2023 Biennial Review; and
•
A $3 million net increase in sales to electric utility retail customers, primarily due to an increase in heating degree days during the heating season ($73 million), partially offset by a decrease in cooling degree days during the cooling season ($70 million).

These increases were partially offset by:

•
A $29 million decrease associated with severe weather events.

Electric fuel and other energy-related purchases increased 22%, primarily due to an increase in the use of purchased renewable energy credits ($227 million) and higher commodity costs for electric utilities ($227 million), which are offset in operating revenue and do not impact net income.

Other operations and maintenance increased 7%, primarily due to an increase in salaries, wages and benefits and administrative costs ($109 million), an increase in charges associated with severe weather events, including storm damage and restoration costs ($70 million) and an increase in outside services ($33 million), partially offset by a decrease in certain expenditures which are primarily recovered through state- and FERC-regulated rates and do not impact net income ($34 million) and a decrease in outage costs ($10 million).

Depreciation and amortization decreased 4%, primarily due to the absence of RGGI-related amortization ($182 million), which is offset in operating revenue and does not impact net income, partially offset by an increase due to various projects being placed into service ($93 million) and an increase in amortization associated with non-fuel riders ($24 million), which is offset in operating revenue and does not impact net income.

Other taxes increased 14%, primarily due to an increase in property taxes.

Impairment of assets and other charges increased $187 million, primarily due to a charge for costs not expected to be recovered from customers on 100% of the CVOW Commercial Project ($224 million), partially offset by the absence of a charge related to the write-off of certain early-stage development costs ($30 million).

Other income increased 18%, primarily due to an increase in AFUDC associated with rate-regulated projects ($44 million), partially offset by a decrease in net investment gains on nuclear decommissioning trust funds ($15 million).

Interest and related charges increased 15%, primarily due to an increase in long-term debt borrowings ($76 million) and higher average outstanding principal on commercial paper and intercompany borrowings with Dominion Energy ($42 million), partially offset by decreased interest expense associated with rider deferrals ($18 million), which is offset in operating revenue and does not impact net income.

Income tax expense decreased 11%, primarily due to an increase in renewable energy tax credits.

Noncontrolling interests increased $122 million, due to the 50% noncontrolling interest in the CVOW Commercial Project sold to Stonepeak in October 2024, consisting of Stonepeak’s share of the earnings associated with the CVOW Commercial Project subsequent to closing, which includes a $112 million share of a charge for costs not expected to be recovered from customers on the CVOW Commercial Project.

71

Segment Results of Operations

Segment results include the impact of intersegment revenues and expenses, which may result in intersegment profit and loss. Presented below is a summary of contributions by Dominion Energy’s operating segments to net income (loss) attributable to Dominion Energy:

|  | Net Income (Loss) Attributable to Dominion Energy |  |  | EPS(1) |
|  | 2025 |  |  | 2024 |  |  | $ Change |  |  | 2025 |  |  | 2024 |  |  | $ Change |
(millions, except EPS) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Third Quarter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dominion Energy Virginia |  | $ | 679 |  |  | $ | 662 |  |  | $ | 17 |  |  | $ | 0.79 |  |  | $ | 0.79 |  |  | $ | — |
Dominion Energy South Carolina |  |  | 168 |  |  |  | 147 |  |  |  | 21 |  |  |  | 0.20 |  |  |  | 0.18 |  |  |  | 0.02 |
Contracted Energy |  |  | 165 |  |  |  | 83 |  |  |  | 82 |  |  |  | 0.19 |  |  |  | 0.10 |  |  |  | 0.09 |
Corporate and Other |  |  | (6 | ) |  |  | 42 |  |  |  | (48 | ) |  |  | (0.02 | ) |  |  | 0.02 |  |  |  | (0.04 | )
Consolidated |  | $ | 1,006 |  |  | $ | 934 |  |  | $ | 72 |  |  | $ | 1.16 |  |  | $ | 1.09 |  |  | $ | 0.07 |
Year-To-Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dominion Energy Virginia |  | $ | 1,789 |  |  | $ | 1,571 |  |  | $ | 218 |  |  | $ | 2.10 |  |  | $ | 1.88 |  |  | $ | 0.22 |
Dominion Energy South Carolina |  |  | 429 |  |  |  | 296 |  |  |  | 133 |  |  |  | 0.50 |  |  |  | 0.35 |  |  |  | 0.15 |
Contracted Energy |  |  | 321 |  |  |  | 305 |  |  |  | 16 |  |  |  | 0.38 |  |  |  | 0.36 |  |  |  | 0.02 |
Corporate and Other |  |  | (108 | ) |  |  | (272 | ) |  |  | 164 |  |  |  | (0.17 | ) |  |  | (0.40 | ) |  |  | 0.23 |
Consolidated |  | $ | 2,431 |  |  | $ | 1,900 |  |  | $ | 531 |  |  | $ | 2.81 |  |  | $ | 2.19 |  |  | $ | 0.62 |

(1)
Consolidated results are presented on a diluted EPS basis. The dilutive impacts, primarily consisting of potential shares which had not yet been issued, are included within the results of the Corporate and Other segment. EPS contributions for Dominion Energy’s operating segments are presented utilizing basic average shares outstanding for the period.

Dominion Energy Virginia

Presented below are selected operating statistics related to Dominion Energy Virginia’s operations:

|  | Third Quarter |  |  | Year-To-Date |  |
|  | 2025 |  |  | 2024 |  |  | % Change |  |  | 2025 |  |  | 2024 |  |  | % Change |  |
Electricity delivered (million MWh) |  |  | 27.0 |  |  |  | 26.0 |  |  |  | 4 |  | % |  | 76.1 |  |  |  | 72.0 |  |  |  | 6 |  | %
Electricity supplied (million MWh):
Utility |  |  | 27.1 |  |  |  | 26.2 |  |  |  | 3 |  |  |  | 76.2 |  |  |  | 72.2 |  |  |  | 6 |  |
Non-Jurisdictional |  |  | 0.5 |  |  |  | 0.5 |  |  |  | — |  |  |  | 1.4 |  |  |  | 1.4 |  |  |  | — |  |
Degree days (electric distribution and utility service area): |  |
Cooling |  |  | 1,066 |  |  |  | 1,205 |  |  |  | (12 | ) |  |  | 1,698 |  |  |  | 1,857 |  |  |  | (9 | ) |
Heating |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,118 |  |  |  | 1,838 |  |  |  | 15 |  |
Average electric distribution customer accounts (thousands) |  |  | 2,811 |  |  |  | 2,786 |  |  |  | 1 |  |  |  | 2,805 |  |  |  | 2,778 |  |  |  | 1 |  |

Presented below, on an after-tax basis, are the key factors impacting Dominion Energy Virginia’s net income contribution:

|  | Third Quarter 2025 vs. 2024 Increase (Decrease) |  |  | Year-To-Date 2025 vs. 2024 Increase (Decrease) |
|  | Amount |  |  | EPS |  |  | Amount |  |  | EPS |
(millions, except EPS) |  |  |  |  |  |  |  |  |  |  |  |
Weather |  | $ | (40 | ) |  | $ | (0.05 | ) |  | $ | 2 |  |  | $ | — |
Customer usage and other factors |  |  | 54 |  |  |  | 0.06 |  |  |  | 131 |  |  |  | 0.16 |
Customer-elected rate impacts |  |  | — |  |  |  | — |  |  |  | (7 | ) |  |  | (0.01 | )
Rider equity return |  |  | 135 |  |  |  | 0.16 |  |  |  | 411 |  |  |  | 0.49 |
Storm damage and restoration costs |  |  | 5 |  |  |  | 0.01 |  |  |  | 11 |  |  |  | 0.01 |
Planned outage costs |  |  | 4 |  |  |  | — |  |  |  | 8 |  |  |  | 0.01 |
Nuclear production tax credit |  |  | (13 | ) |  |  | (0.02 | ) |  |  | 6 |  |  |  | 0.01 |
Sale of noncontrolling interest |  |  | (86 | ) |  |  | (0.10 | ) |  |  | (234 | ) |  |  | (0.28 | )
Depreciation and amortization |  |  | (10 | ) |  |  | (0.01 | ) |  |  | (22 | ) |  |  | (0.03 | )
Interest expense, net |  |  | (4 | ) |  |  | — |  |  |  | (44 | ) |  |  | (0.05 | )
Other |  |  | (28 | ) |  |  | (0.04 | ) |  |  | (44 | ) |  |  | (0.06 | )
Share dilution |  |  | — |  |  |  | (0.01 | ) |  |  | — |  |  |  | (0.03 | )
Change in net income contribution |  | $ | 17 |  |  | $ | — |  |  | $ | 218 |  |  | $ | 0.22 |

72

Dominion Energy South Carolina

Presented below are selected operating statistics related to Dominion Energy South Carolina’s operations:

|  | Third Quarter |  |  | Year-To-Date |  |
|  | 2025 |  |  | 2024 |  |  | % Change |  |  | 2025 |  |  | 2024 |  |  | % Change |  |
Electricity delivered (million MWh) |  |  | 6.4 |  |  |  | 6.5 |  |  |  | (2 | ) | % |  | 17.2 |  |  |  | 17.0 |  |  |  | 1 |  | %
Electricity supplied (million MWh) |  |  | 6.7 |  |  |  | 6.7 |  |  |  | — |  |  |  | 18.0 |  |  |  | 17.8 |  |  |  | 1 |  |
Degree days (electric distribution service areas): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cooling |  |  | 498 |  |  |  | 569 |  |  |  | (12 | ) |  |  | 767 |  |  |  | 850 |  |  |  | (10 | ) |
Heating |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 853 |  |  |  | 640 |  |  |  | 33 |  |
Gas distribution throughput (bcf): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  | 13 |  |  |  | 13 |  |  |  | — |  |  |  | 50 |  |  |  | 45 |  |  |  | 11 |  |
Average distribution customer accounts (thousands): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Electric |  |  | 822 |  |  |  | 810 |  |  |  | 1 |  |  |  | 816 |  |  |  | 805 |  |  |  | 1 |  |
Gas |  |  | 474 |  |  |  | 461 |  |  |  | 3 |  |  |  | 471 |  |  |  | 458 |  |  |  | 3 |  |

Presented below, on an after-tax basis, are the key factors impacting Dominion Energy South Carolina’s net income contribution:

|  | Third Quarter 2025 vs. 2024 Increase (Decrease) |  |  | Year-To-Date 2025 vs. 2024 Increase (Decrease) |
|  | Amount |  |  | EPS |  |  | Amount |  |  | EPS |
(millions, except EPS) |  |  |  |  |  |  |  |  |  |  |  |
Weather |  | $ | (10 | ) |  | $ | (0.01 | ) |  | $ | 7 |  |  | $ | 0.01 |
Customer usage and other factors |  |  | 16 |  |  |  | 0.02 |  |  |  | 31 |  |  |  | 0.04 |
Customer-elected rate impacts |  |  | 2 |  |  |  | — |  |  |  | 9 |  |  |  | 0.01 |
Base rate case & Natural Gas Rate Stabilization Act impacts |  |  | 40 |  |  |  | 0.05 |  |  |  | 124 |  |  |  | 0.15 |
Capital cost rider |  |  | (2 | ) |  |  | — |  |  |  | (6 | ) |  |  | (0.01 | )
Depreciation and amortization |  |  | (4 | ) |  |  | — |  |  |  | (12 | ) |  |  | (0.01 | )
Interest expense, net |  |  | — |  |  |  | — |  |  |  | (4 | ) |  |  | — |
Other |  |  | (21 | ) |  |  | (0.03 | ) |  |  | (16 | ) |  |  | (0.03 | )
Share dilution |  |  | — |  |  |  | (0.01 | ) |  |  | — |  |  |  | (0.01 | )
Change in net income contribution |  | $ | 21 |  |  | $ | 0.02 |  |  | $ | 133 |  |  | $ | 0.15 |

Contracted Energy

Presented below are selected operating statistics related to Contracted Energy’s operations:

|  | Third Quarter |  |  | Year-To-Date |  |
|  | 2025 |  |  | 2024 |  |  | % Change |  |  | 2025 |  |  | 2024 |  |  | % Change |  |
Electricity supplied (million MWh) |  |  | 5.0 |  |  |  | 4.5 |  |  |  | 11 |  | % |  | 13.9 |  |  |  | 14.0 |  |  |  | (1 | ) | %

Presented below, on an after-tax basis, are the key factors impacting Contracted Energy’s net income contribution:

|  | Third Quarter 2025 vs. 2024 Increase (Decrease) |  |  | Year-To-Date 2025 vs. 2024 Increase (Decrease) |
|  | Amount |  |  | EPS |  |  | Amount |  |  | EPS |
(millions, except EPS) |  |  |  |  |  |  |  |  |  |  |  |
Margin |  | $ | 11 |  |  | $ | 0.01 |  |  | $ | 7 |  |  | $ | 0.01 |
Planned Millstone outages(1) |  |  | 7 |  |  |  | 0.01 |  |  |  | (57 | ) |  |  | (0.07 | )
Unplanned Millstone outages(1) |  |  | 8 |  |  |  | 0.01 |  |  |  | 18 |  |  |  | 0.02 |
Depreciation and amortization |  |  | (8 | ) |  |  | (0.01 | ) |  |  | (13 | ) |  |  | (0.02 | )
Renewable energy investment tax credits |  |  | 41 |  |  |  | 0.05 |  |  |  | 42 |  |  |  | 0.05 |
Renewable energy production tax credits(2) |  |  | 29 |  |  |  | 0.03 |  |  |  | 47 |  |  |  | 0.06 |
Interest expense, net |  |  | (5 | ) |  |  | (0.01 | ) |  |  | (2 | ) |  |  | — |
Other |  |  | (1 | ) |  |  | — |  |  |  | (26 | ) |  |  | (0.02 | )
Share dilution |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (0.01 | )
Change in net income contribution |  | $ | 82 |  |  | $ | 0.09 |  |  | $ | 16 |  |  | $ | 0.02 |

(1)
Includes earnings impact from outage costs and lower energy margins.
(2)
Includes an increase from renewable natural gas facilities of $25 million and $36 million for the quarter and year-to-date periods, respectively.

73

Corporate and Other

Presented below are the Corporate and Other segment’s after-tax results:

|  |  | Third Quarter |  |  | Year-To-Date |
|  |  | 2025 |  |  | 2024 |  |  | $ Change |  |  | 2025 |  |  | 2024 |  |  | $ Change |
(millions, except EPS) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Specific items attributable to operating segments |  |  | $ | 88 |  |  | $ | 57 |  |  | $ | 31 |  |  | $ | 81 |  |  | $ | 76 |  |  | $ | 5 |
Specific items attributable to Corporate and Other segment |  |  |  | (3 | ) |  |  | 41 |  |  |  | (44 | ) |  |  | (23 | ) |  |  | (64 | ) |  |  | 41 |
Net income from specific items |  |  |  | 85 |  |  |  | 98 |  |  |  | (13 | ) |  |  | 58 |  |  |  | 12 |  |  |  | 46 |
Corporate and other operations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense, net |  |  |  | (147 | ) |  |  | (118 | ) |  |  | (29 | ) |  |  | (370 | ) |  |  | (435 | ) |  |  | 65 |
Equity method investments |  |  |  | — |  |  |  | (2 | ) |  |  | 2 |  |  |  | (5 | ) |  |  | (2 | ) |  |  | (3 | )
Pension and other postretirement benefit plans |  |  |  | 58 |  |  |  | 70 |  |  |  | (12 | ) |  |  | 172 |  |  |  | 207 |  |  |  | (35 | )
Corporate service company costs |  |  |  | (14 | ) |  |  | (16 | ) |  |  | 2 |  |  |  | (39 | ) |  |  | (68 | ) |  |  | 29 |
Other |  |  |  | 12 |  |  |  | 10 |  |  |  | 2 |  |  |  | 76 |  |  |  | 14 |  |  |  | 62 |
Net expense from corporate and other operations |  |  |  | (91 | ) |  |  | (56 | ) |  |  | (35 | ) |  |  | (166 | ) |  |  | (284 | ) |  |  | 118 |
Total net income (expense) |  |  | $ | (6 | ) |  | $ | 42 |  |  | $ | (48 | ) |  | $ | (108 | ) |  | $ | (272 | ) |  | $ | 164 |
EPS impact |  |  | $ | (0.02 | ) |  | $ | 0.02 |  |  | $ | (0.04 | ) |  | $ | (0.17 | ) |  | $ | (0.40 | ) |  | $ | 0.23 |

Corporate and Other includes specific items attributable to Dominion Energy’s primary operating segments that are not included in profit measures evaluated by executive management in assessing the segments’ performance or in allocating resources. See Note 21 to the Consolidated Financial Statements in this report for discussion of these items in more detail. Corporate and Other also includes items attributable to the Corporate and Other segment. For the three months ended September 30, 2025, Dominion Energy reported an insignificant amount of specific items in the Corporate and Other segment. For the nine months ended September 30, 2025, this primarily included $23 million after-tax loss for derivative mark-to-market changes.

For the three months ended September 30, 2024, this primarily included a $57 million after-tax gain for derivative mark-to-market changes and $15 million net loss from discontinued operations, primarily associated with operations included in the PSNC Transaction, including the loss on sale. For the nine months ended September 30, 2024, this primarily included a $246 million after-tax loss associated with lower market-related impacts on pension and other postretirement plans, $200 million net income from discontinued operations, primarily associated with operations included in the East Ohio, PSNC and Questar Gas Transactions, including the loss on sale associated with the East Ohio and PSNC Transactions, gain on sale associated with the Questar Gas Transaction, as well as an impairment charge associated with the Questar Gas Transaction, $30 million in after-tax costs associated with the business review completed in March 2024 and a $23 million after-tax gain for derivative mark-to-market changes.

Outlook

As of September 30, 2025, there have been no material changes to Dominion Energy’s 2025 outlook as described in Item 7. MD&A in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024. See Future Issues and Other Matters for a discussion of certain items that may have an impact on Dominion Energy’s 2025 net income on a per share basis.

Liquidity and Capital Resources

Dominion Energy depends on both cash generated from operations and external sources of liquidity to provide working capital and as a bridge to long-term financings. Dominion Energy’s material cash requirements include capital and investment expenditures, repaying short-term and long-term debt obligations and paying dividends on its common and preferred stock.

Analysis of Cash Flows

Presented below are selected amounts related to Dominion Energy’s cash flows:

|  | 2025 |  |  | 2024 |
(millions) |  |  |  |  |  |
Cash, restricted cash and equivalents at January 1 |  | $ | 365 |  |  | $ | 301 |
Cash flows provided by (used in): |  |  |  |  |  |
Operating activities(1) |  |  | 4,374 |  |  |  | 4,377 |
Investing activities |  |  | (9,501 | ) |  |  | 293 |
Financing activities |  |  | 5,828 |  |  |  | (3,069 | )
Net increase in cash, restricted cash and equivalents |  |  | 701 |  |  |  | 1,601 |
Cash, restricted cash and equivalents at September 30 |  | $ | 1,066 |  |  | $ | 1,902 |

(1)
Includes cash outflows of $55 million and $60 million for energy efficiency programs in Virginia for the nine months ended September 30, 2025 and 2024, respectively, and $19 million for DSM programs in South Carolina for both the nine months ended September 30, 2025 and 2024.

Operating Cash Flows

Net cash provided by Dominion Energy’s operating activities decreased $3 million, inclusive of a $537 million decrease from discontinued operations. Net cash provided by continuing operations increased $534 million, primarily due to higher operating cash flows from electric utility operations driven by riders, customer usage and other factors ($1.1 billion) and settlements of interest rate swaps ($653 million), partially offset by lower deferred fuel and purchased gas cost

74

recoveries ($963 million) and a decrease from changes in working capital ($230 million).

Investing Cash Flows

Net cash from Dominion Energy’s investing activities decreased $9.8 billion, primarily due to the absence of net proceeds from the East Ohio, Questar Gas and PSNC Transactions in 2024 ($9.2 billion), an increase in plant construction and other property additions ($536 million) and the absence of distributions from equity method affiliates in 2024 ($126 million), partially offset by lower acquisitions of solar development projects ($190 million).

Financing Cash Flows

Net cash from Dominion Energy’s financing activities increased $8.9 billion, primarily due to the absence of net repayments on 364-day term loan facilities in 2024 ($4.8 billion), an increase in net issuances of long-term debt ($3.8 billion), capital contributions from Stonepeak to OSWP ($1.1 billion), the absence of supplemental credit facility repayments in 2024 ($450 million) and the absence of the partial repurchase of Series B Preferred Stock in 2024 ($440 million), partially offset by a $1.4 billion decrease due to repayments of securitization bonds in 2025 which were issued in 2024, distributions from OSWP to Stonepeak ($167 million), a decrease in net issuances of short-term debt ($126 million) and impacts from the sale of a noncontrolling interest in OSWP ($88 million).

Credit Facilities and Short-Term Debt

As discussed in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024, Dominion Energy generally uses proceeds from short-term borrowings, including commercial paper, to satisfy short-term cash requirements not met through cash from operations. The levels of borrowing may vary significantly during the course of the year, depending on the timing and amount of cash requirements not satisfied by cash from operations. There have been no significant changes to Dominion Energy’s use of credit facilities and/or short-term debt during the nine months ended September 30, 2025.

Revolving Credit Facilities

Dominion Energy’s short-term financing is primarily supported by its joint revolving credit facility. In April 2025, Dominion Energy amended its joint revolving credit facility to, among other things, increase the facility limit from $6.0 billion to $7.0 billion and extend the maturity date from June 2026 to April 2030. In addition, in April 2025, Dominion Energy entered into a $1.0 billion 364-day revolving credit agreement. At September 30, 2025, Dominion Energy had $5.9 billion of unused capacity under these revolving credit facilities. See Note 16 to the Consolidated Financial Statements in this report for the balances of commercial paper and letters of credit outstanding.

Dominion Energy Reliability Investment SM Program

Dominion Energy has an effective shelf registration statement with the SEC for the sale of up to $3.0 billion of variable denomination floating rate demand notes, called Dominion Energy Reliability Investment SM. The registration limits the principal amount that may be outstanding at any one time to $1.0 billion. The notes are offered on a continuous basis and bear interest at a floating rate per annum determined by the Dominion Energy Reliability Investment Committee, or its designee, on a weekly basis. The notes have no stated maturity date, are non-transferable and may be redeemed in whole or in part by Dominion Energy or at the investor’s option at any time. At September 30, 2025, Dominion Energy’s Consolidated Balance Sheet included $451 million presented within short-term debt. The proceeds are used for general corporate purposes and to repay debt.

Other Facilities

In addition to the primary sources of short-term liquidity discussed above, from time to time Dominion Energy enters into separate supplementary credit facilities or term loans as discussed in Note 16 to the Consolidated Financial Statements in this report.

Long-Term Debt

Sustainability Revolving Credit Agreement

In April 2025, the Sustainability Revolving Credit Agreement, which is described in Note 18 to the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024, was amended to, among other things, increase the facility limit from $900 million to $1.0 billion and extend the maturity date from June 2025 to April 2028. At September 30, 2025, Dominion Energy had no borrowings outstanding under this facility. See Note 16 to the Consolidated Financial Statements in this report for additional information.

75

Issuances and Borrowings of Long-Term Debt

During the nine months ended September 30, 2025, Dominion Energy issued or borrowed the following long-term debt. Unless otherwise noted, the proceeds were used for the repayment of existing indebtedness and for general corporate purposes.

Month |  | Type |  | Public / Private |  | Entity |  | Principal |  |  | Rate |  |  |  | Stated Maturity
|  |  |  |  |  |  |  | (millions) |  |  |  |  |  |  |
January |  | First mortgage bonds |  | Public |  | DESC |  | $ | 450 |  |  |  | 5.300 |  | % |  | 2035
March |  | Senior notes |  | Public |  | Virginia Power |  |  | 625 |  |  |  | 5.150 |  | % |  | 2035
March |  | Senior notes |  | Public |  | Virginia Power |  |  | 625 |  |  |  | 5.650 |  | % |  | 2055
March |  | Senior notes |  | Public |  | Dominion Energy |  |  | 800 |  |  |  | 5.000 |  | % |  | 2030
March |  | Senior notes |  | Public |  | Dominion Energy |  |  | 700 |  |  |  | 5.450 |  | % |  | 2035
May |  | Senior notes |  | Public |  | Dominion Energy |  |  | 1,000 |  |  |  | 4.600 |  | % |  | 2028
August |  | Junior subordinated notes |  | Public |  | Dominion Energy |  |  | 825 |  |  |  | 6.000 |  | % | (1) | 2056
August |  | Junior subordinated notes |  | Public |  | Dominion Energy |  |  | 700 |  |  |  | 6.200 |  | % | (1) | 2056
September |  | Senior notes |  | Public |  | Virginia Power |  |  | 825 |  |  |  | 4.900 |  | % |  | 2035
September |  | Senior notes |  | Public |  | Virginia Power |  |  | 875 |  |  |  | 5.600 |  | % |  | 2055
Total issuances and borrowings |  |  |  |  |  | $ | 7,425 |  |  |  |  |  |  |

(1)
Rate subject to periodic reset as described in Note 16 to the Consolidated Financial Statements in this report.

In October 2025, Dominion Energy issued $1.3 billion of junior subordinated notes, consisting of $625 million of each of the 2025 Series A JSNs and 2025 Series B JSNs. See Note 16 to the Consolidated Financial Statements in this report for additional information.

Dominion Energy currently meets the definition of a well-known seasoned issuer under SEC rules governing the registration, communication and offering processes under the Securities Act of 1933, as amended. The rules provide for a streamlined shelf registration process to provide registrants with timely access to capital. This allows Dominion Energy to use automatic shelf registration statements to register any offering of securities, other than those for exchange offers or business combination transactions.

Dominion Energy does not anticipate, excluding potential opportunistic financings, the issuance of any additional long-term debt in 2025.

Repayments, Repurchases and Redemptions of Long-Term Debt

Dominion Energy may from time to time reduce its outstanding debt and level of interest expense through redemption of debt securities prior to maturity or repurchases of debt securities in the open market, in privately negotiated transactions, through tender offers or otherwise.

The following long-term debt was repaid, repurchased or redeemed during the nine months ended September 30, 2025:

Month |  | Type |  | Entity |  | Principal (1) |  |  | Rate |  | Stated Maturity
(millions) |  |  |  |  |  |  |  |  |  |  |
Debt scheduled to mature in 2025 |  | Multiple |  | $ | 830 |  |  | various |  |
Early repurchases and redemptions |  |  |  |  |  |  |  |  |
None |  |  |  |  |  |  |  |  |  |  |
Total repayments, repurchases and redemptions |  |  | $ | 830 |  |  |  |  |

(1)
Total amount redeemed prior to maturity, if any, includes remaining principal plus accrued interest.

See Note 18 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024 for additional information regarding scheduled maturities of Dominion Energy’s long-term debt, including related average interest rates.

Remarketing of Long-Term Debt

In September 2025, Virginia Power remarketed two series of tax-exempt bonds, with an aggregate outstanding principal of $222 million to new investors. Both series of bonds bear interest at a coupon of 3.125% until October 2030, after which they will bear interest at a market rate to be determined at that time.

Credit Ratings

As discussed in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024, Dominion Energy’s credit ratings affect its liquidity, cost of borrowing under credit facilities and collateral posting requirements under commodity contracts, as well as the rates at which it is able to offer its debt securities. The credit ratings for Dominion Energy are affected by its financial profile, mix of regulated and nonregulated businesses and respective cash flows, changes in methodologies used by the rating agencies and event risk, if applicable, such as major acquisitions or dispositions. A credit rating is not a recommendation to buy, sell or hold securities and should be evaluated independently of any other rating. Ratings are subject to revision or withdrawal at any time by the applicable rating organization. In May 2025, Moody’s affirmed its credit ratings but revised its outlook for Dominion Energy from stable to negative. As of September 30, 2025, there have been no other changes in Dominion Energy’s credit ratings from those described in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

76

Financial Covenants

As discussed in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024, Dominion Energy is subject to various covenants present in the agreements underlying Dominion Energy’s debt. As of September 30, 2025, there have been no material changes to these covenants, nor any events of default under these covenants except the following changes. As discussed in Note 16 to the Consolidated Financial Statements of this report, Dominion Energy entered into an amended joint revolving credit facility as well as an amended Sustainability Revolving Credit Agreement. Within both agreements, the calculation of equity utilized in the total debt to total capital ratio was updated for a technical clarification. In addition, under the amended joint revolving credit facility, if Dominion Energy or any of its material subsidiaries failed to make payment on various debt obligations in excess of $250 million, or $150 million for DESC, the lenders could require the defaulting company, if it is a borrower under Dominion Energy’s joint revolving credit facility, to accelerate its repayment of any outstanding borrowings and the lenders could terminate their commitments, if any, to lend funds to that company under the credit facility.

As discussed in Note 16 to the Consolidated Financial Statements of this report, in April 2025, Dominion Energy also entered into a $1.0 billion 364-day revolving credit agreement, which includes a maximum allowed total debt to total capital ratio that is consistent with the allowed ratio under these two facilities.

Common Stock, Preferred Stock and Other Equity Securities

In the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024, there is a discussion of Dominion Energy’s existing equity financing programs, including Dominion Energy Direct®. During the nine months ended September 30, 2025, Dominion Energy issued $105 million of stock through these programs, net of fees and commissions.

During the first quarter of 2025, Dominion Energy entered into forward sale agreements under its May 2024 at-the-market program for approximately 8.8 million shares of its common stock expected to be settled in the fourth quarter of 2025 at a weighted-average initial forward price of $55.34 per share. Including the forward sale agreements entered into from September through December 2024, Dominion Energy has entered into forward sale agreements for approximately 18.5 million shares of its common stock expected to be settled in the fourth quarter of 2025 at a weighted-average initial forward price of $56.62 per share. During the third quarter of 2025, Dominion Energy entered into forward sale agreements under its May 2024 at-the-market program for approximately 2.4 million shares of its common stock expected to be settled by the fourth quarter of 2027 at a weighted-average initial forward price of $59.91 per share.

In February 2025, Dominion Energy entered into a new at-the-market-program, and during the second quarter of 2025, Dominion Energy entered into forward sale agreements for approximately 11.0 million shares of its common stock expected to be settled in the fourth quarter of 2026 at a weighted-average initial forward price of $55.83 per share. During the third quarter of 2025, Dominion Energy entered into forward sale agreements under its February 2025 at-the-market program for approximately 9.6 million shares of its common stock expected to be settled by the fourth quarter of 2027 at a weighted-average initial forward price of $61.11 per share. See Note 16 to the Consolidated Financial Statements in this report for additional information.

Through September 30, 2025, Dominion Energy has not repurchased and does not plan to repurchase shares of common stock in 2025, except for shares tendered by employees to satisfy tax withholding obligations on vested restricted stock, which does not impact the available capacity under its stock repurchase authorization. See Note 16 to the Consolidated Financial Statements in this report for additional information.

Capital Expenditures

As of September 30, 2025, there have been no material changes to Dominion Energy’s expectation for planned capital expenditures as disclosed in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Dividends

Dominion Energy believes that its operations provide a stable source of cash flow to contribute to planned levels of capital expenditures and maintain or grow the dividend on common shares. See Note 16 to the Consolidated Financial Statements in this report for additional information regarding Dominion Energy’s outstanding preferred stock and associated dividend rate.

Subsidiary Dividend Restrictions

As of September 30, 2025, there have been no material changes to the subsidiary dividend restrictions disclosed in the Subsidiary Dividend Restrictions section of MD&A in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Collateral and Credit Risk

Collateral requirements are impacted by capital projects, commodity prices, hedging levels, Dominion Energy’s credit ratings and the credit quality of its counterparties. As of September 30, 2025, there have been no material changes to the collateral requirements disclosed in the Collateral and Credit Risk section of MD&A in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

77

Dominion Energy’s exposure to potential concentrations of credit risk results primarily from its energy marketing and price risk management activities. Presented below is a summary of Dominion Energy’s credit exposure at September 30, 2025 for these activities. Gross credit exposure for each counterparty is calculated as outstanding receivables plus any unrealized on- or off-balance sheet exposure, taking into account contractual netting rights.

|  | Gross Credit Exposure |  |  | Credit Collateral |  |  | Net Credit Exposure |
(millions) |  |  |  |  |  |  |  |  |
Investment grade(1) |  | $ | 46 |  |  | $ | — |  |  | $ | 46 |
Non-investment grade(2) |  |  | 11 |  |  |  | — |  |  |  | 11 |
No external ratings: |  |  |  |  |  |  |  |  |
Internally rated—investment grade(3) |  |  | 41 |  |  |  | — |  |  |  | 41 |
Internally rated—non-investment grade(4) |  |  | 7 |  |  |  | 2 |  |  |  | 5 |
Total(5) |  | $ | 105 |  |  | $ | 2 |  |  | $ | 103 |

(1)
Designations as investment grade are based upon minimum credit ratings assigned by Moody’s and Standard & Poor’s. The five largest counterparty exposures, combined, for this category represented approximately 33% of the total net credit exposure.
(2)
The five largest counterparty exposures, combined, for this category represented approximately 11% of the total net credit exposure.
(3)
The five largest counterparty exposures, combined, for this category represented approximately 40% of the total net credit exposure.
(4)
The five largest counterparty exposures, combined, for this category represented approximately 3% of the total net credit exposure.
(5)
Excludes long-term purchase power agreements entered to satisfy legislative or state regulatory commission requirements.

Fuel and Other Purchase Commitments

There have been no material changes outside of the ordinary course of business to Dominion Energy’s fuel and other purchase commitments included in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

Other Material Cash Requirements

In addition to the financing arrangements discussed above, Dominion Energy is party to numerous contracts and arrangements obligating it to make cash payments in future years. Dominion Energy expects current liabilities to be paid within the next twelve months. In addition to the items already discussed, the following represent material expected cash requirements recorded on Dominion Energy’s Consolidated Balance Sheet at September 30, 2025. Such obligations include:

•
Operating and finance lease obligations – See Note 14 to the Consolidated Financial Statements in this report and Note 15 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024;
•
Regulatory liabilities – See Note 12 to the Consolidated Financial Statements in this report;
•
AROs – See Note 14 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024;
•
Employee benefit plan obligations – See Note 20 to the Consolidated Financial Statements in this report and Note 22 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.

In addition, Dominion Energy is party to contracts and arrangements which may require it to make material cash payments in future years that are not recorded on its Consolidated Balance Sheets. Such obligations include:

•
Guarantees – See Note 17 to the Consolidated Financial Statements in this report.

Future Issues and Other Matters

See Item 1. Business, Future Issues and Other Matters in MD&A and Notes 13 and 23 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024, Future Issues and Other Matters in the Companies’ Quarterly Report on Form 10-Q for the quarters ended March 31, 2025 and June 30, 2025 and Notes 13 and 17 to the Consolidated Financial Statements in this report for additional information on various environmental, regulatory, legal and other matters that may impact future results of operations, financial condition and/or cash flows. There have been no updates to the matters discussed in Future Issues and Other Matters in the Companies’ Quarterly Report on Form 10-Q for the quarter ended June 30, 2025, with the exception of the items described below.

CVOW Commercial Project

In September 2019, Virginia Power filed applications with PJM for the CVOW Commercial Project and for certain approvals and rider recovery from the Virginia Commission in November 2021. The 2.6 GW project is expected to be placed in service by the end of 2026 with an estimated total project cost of approximately $11.2 billion, excluding financing costs, that reflects an estimated impact of certain tariffs which became effective during 2025. The Companies’ projected impact of tariffs on expected total project cost is subject to change due to the inherent uncertainty associated with which tariffs, if any, may be in effect and the associated requirements and rates of such tariffs. Virginia Power’s estimate for the project’s projected levelized cost of energy, including renewable energy credits, is approximately $84/MWh, compared to the initial filing submission of $80-90/MWh.

The expected total project cost increase of $0.3 billion relative to Virginia Power’s August 2025 construction update filing with the Virginia Commission reflects current projections of tariffs on equipment expected to be delivered from March 2025 through the end of 2025 that originates from Mexico, Canada, a European Union member or other applicable countries and on equipment expected to be delivered from March 2025 through the end of 2026 that contains steel. The actual tariffs to be incurred are dependent upon the tariff requirements and rates, if any, at the time of delivery of the specific component. If the current tariffs were to remain in effect through the end of 2026, the expected project costs for offshore wind and onshore electrical

78

interconnection equipment could increase by up to approximately $0.2 billion.

The estimated total project cost above reflects the Companies’ best estimate of the remaining construction costs, including contingency of approximately 7% on such remaining amounts. Such estimate could potentially change for items, certain of which are beyond the Companies’ control, including but not limited to final network upgrade costs allocated by PJM, fuel for transportation and installation, the impact of applicable tariffs including any potential impact of pending Section 232 investigations and litigation before the U.S. Supreme Court, costs to maintain necessary permits, approvals and authorizations, ability of key suppliers and contractors to timely satisfy their obligations under existing contracts, marine wildlife and/or any severe weather events.

Virginia Power commenced major onshore construction activities for the CVOW Commercial Project in November 2023 following the receipt of a record of decision from BOEM in October 2023 for construction. Onshore construction activities are anticipated to be completed in early 2026. Virginia Power commenced major offshore construction activities in May 2024 following the receipt of final approval from BOEM authorizing offshore construction and necessary permits from the U.S. Army Corps of Engineers for offshore construction in January 2024. Virginia Power completed the installation of all 176 monopiles in October 2025. Transition pieces began to be installed on monopiles near the end of 2024 with 63 transition pieces installed through October 2025 and the remaining 113 expected to be installed by early 2026. The first of three offshore substations was installed in March 2025. Deepwater export cables commenced being laid in late 2024 with the last of nine completed in July 2025. Of the 176 segments of interarray cable, expected to total 260 miles, 48 have been installed through October 2025 with the remaining to be laid throughout 2025 and 2026. Turbines are expected to commence installment in the fourth quarter of 2025 and be completed by the end of 2026.

Offshore Wind Vessel Leasing Arrangement

In December 2020, Dominion Energy signed an agreement (most recently amended in August 2024) with a lessor to complete construction of and lease a Jones Act compliant offshore wind installation vessel. This vessel is designed to handle current turbine technologies as well as next generation turbines. The lessor provided equity and obtained financing commitments from debt investors, totaling $715 million, which funded project costs. Including financing costs, total estimated project costs are approximately $715 million. In September 2025, the vessel was delivered and the five-year lease term commenced. See Note 14 to the Consolidated Financial Statements in this report for additional information.

79

ITEM 3. QUANTITATIVE AND QUALITATIVE

DISCLOSURES ABOUT MARKET RISK

The matters discussed in this Item may contain “forward-looking statements” as described in the introductory paragraphs under Part I., Item 2. MD&A in this report. The reader’s attention is directed to those paragraphs for discussion of various risks and uncertainties that may impact the Companies.

Market Risk Sensitive Instruments and Risk Management

The Companies’ financial instruments, commodity contracts and related financial derivative instruments are exposed to potential losses due to adverse changes in commodity prices, interest rates, foreign currency exchange rates and equity securities prices as described below. Commodity price risk is present in the Companies’ electric operations and Dominion Energy’s natural gas procurement and marketing operations due to the exposure to market shifts in prices received and paid for electricity, natural gas and other commodities. The Companies use commodity derivative contracts to manage price risk exposures for these operations. Interest rate risk is generally related to their outstanding debt and future issuances of debt. In addition, the Companies are exposed to investment price risk through various portfolios of equity and debt securities. The Companies’ exposure to foreign currency exchange rate risk is related to certain fixed price contracts associated with the CVOW Commercial Project which it manages through foreign currency exchange rate derivatives. The contracts include services denominated in currencies other than the U.S. dollar for approximately €2.6 billion and 5.1 billion kr. In addition, certain of the fixed price contracts, approximately €0.7 billion, contain commodity indexing provisions linked to steel.

The following sensitivity analysis estimates the potential loss of future earnings or fair value from market risk sensitive instruments over a selected time period due to a 10% change in commodity prices, interest rates or foreign currency exchange rates.

Commodity Price Risk

To manage price risk, the Companies hold commodity-based derivative instruments held for non-trading purposes associated with purchases and sales of electricity, natural gas and other energy-related products.

The derivatives used to manage commodity price risk are executed within established policies and procedures and may include instruments such as futures, forwards, swaps, options and FTRs that are sensitive to changes in the related commodity prices. For sensitivity analysis purposes, the hypothetical change in market prices of commodity-based derivative instruments is determined based on models that consider the market prices of commodities in future periods, the volatility of the market prices in each period, as well as the time value factors of the derivative instruments. Prices and volatility are principally determined based on observable market prices.

A hypothetical 10% decrease in commodity prices would have resulted in a decrease of $18 million and a hypothetical 10% increase in commodity prices would have resulted in a decrease of $18 million in the fair value of Dominion Energy’s commodity-based derivative instruments as of September 30, 2025 and December 31, 2024, respectively.

A hypothetical 10% decrease in commodity prices would have resulted in a decrease of $72 million and $15 million in the fair value of Virginia Power’s commodity-based derivative instruments as of September 30, 2025 and December 31, 2024, respectively.

The impact of a change in energy commodity prices on the Companies’ commodity-based derivative instruments at a point in time is not necessarily representative of the results that will be realized when the contracts are ultimately settled. Net losses from commodity-based financial derivative instruments used for hedging purposes, to the extent realized, will generally be offset by recognition of the hedged transaction, such as revenue from physical sales of the commodity.

Interest Rate Risk

The Companies manage their interest rate risk exposure predominantly by maintaining a balance of fixed and variable rate debt. For variable rate debt outstanding for Dominion Energy, a hypothetical 10% increase in market interest rates would result in an $11 million and $12 million decrease in earnings at September 30, 2025 and December 31, 2024, respectively. For variable rate debt outstanding for Virginia Power, a hypothetical 10% increase in market interest rates would result in a less than $1 million and $7 million decrease in earnings at September 30, 2025 and December 31, 2024, respectively.

The Companies also use interest rate derivatives, including forward-starting swaps, interest rate swaps and interest rate lock agreements to manage interest rate risk. As of September 30, 2025, Dominion Energy and Virginia Power had $13.9 billion and $9.3 billion, respectively, in aggregate notional amounts of these interest rate derivatives outstanding in combined absolute value of their long and short positions, except in the case of offsetting transactions, for which they represent the absolute value of the net volume of their long and short positions. A hypothetical 10% decrease in market interest rates would have resulted in a decrease of $456 million and $376 million, respectively, in the fair value of Dominion Energy and Virginia Power’s interest rate derivatives at September 30, 2025. As of December 31, 2024, Dominion Energy and Virginia Power had $10.8 billion and $3.8 billion, respectively, of these interest rate derivatives outstanding in combined absolute value of their long and short positions, except in the case of offsetting transactions, for which they represent the absolute value of the net volume of their long and short positions. A hypothetical 10% decrease in market interest rates would have resulted in a decrease of $157 million and $155 million, respectively, in the fair value of Dominion Energy and Virginia Power’s interest rate derivatives at December 31, 2024.

80

The impact of a change in interest rates on the Companies’ interest rate-based financial derivative instruments at a point in time is not necessarily representative of the results that will be realized when the contracts are ultimately settled. Net gains and/or losses from interest rate derivative instruments used for hedging purposes, to the extent realized, will generally be offset by recognition of the hedged transaction.

Foreign Currency Exchange Rate Risk

The Companies utilize foreign currency exchange rate swaps to economically hedge the foreign currency exchange risk associated with fixed price contracts related to the CVOW Commercial Project denominated in foreign currencies. As of September 30, 2025 and December 31, 2024, Dominion Energy had €894 million and €1.1 billion, respectively, in aggregate notional amounts of these foreign currency forward purchase agreements outstanding. A hypothetical 10% increase in the U.S. dollar to Euro exchange rate would have resulted in a decrease of $72 million and $106 million in the fair value of Dominion Energy’s foreign currency swaps at September 30, 2025 and December 31, 2024, respectively.

The impact of a change in exchange rates on the Companies’ foreign currency-based financial derivative instruments at a point in time is not necessarily representative of the results that will be realized when the contracts are ultimately settled. Net gains and/or losses from foreign exchange derivative instruments used for hedging purposes, to the extent realized, will generally be offset by recognition of the hedged transaction.

Investment Price Risk

The Companies are subject to investment price risk due to securities held as investments in nuclear decommissioning and rabbi trust funds that are managed by third-party investment managers. These trust funds primarily hold marketable securities that are reported in the Companies’ Consolidated Balance Sheets at fair value.

Dominion Energy recognized net investment gains (losses) (including investment income) on nuclear decommissioning and rabbi trust investments of $854 million, $1.0 billion and $1.1 billion for the nine months ended September 30, 2025 and 2024 and the year ended December 31, 2024, respectively. Net realized gains and losses include gains and losses from the sale of investments as well as any other-than-temporary declines in fair value. Dominion Energy recorded in AOCI and regulatory liabilities, a net increase in unrealized (losses) gains on debt investments of $52 million, $41 million and $(28) million for the nine months ended September 30, 2025 and 2024 and the year ended December 31, 2024, respectively.

Virginia Power recognized net investment gains (losses) (including investment income) on nuclear decommissioning and rabbi trust investments of $436 million, $526 million and $580 million for the nine months ended September 30, 2025 and 2024 and the year ended December 31, 2024, respectively. Net realized gains and losses include gains and losses from the sale of investments as well as any other-than-temporary declines in fair value. Virginia Power recorded in AOCI and regulatory liabilities, a net increase in unrealized gains (losses) on debt investments of $23 million, $25 million and $(10) for the nine months ended September 30, 2025 and 2024 and the year ended December 31, 2024, respectively.

Dominion Energy sponsors pension and other postretirement employee benefit plans that hold investments in trusts to fund employee benefit payments. Virginia Power employees participate in these plans. Differences between actual and expected returns on plan assets are immediately recognized in earnings annually in the fourth quarter of each fiscal year as well as whenever a plan is determined to qualify for a remeasurement. A hypothetical 0.25% decrease in the expected long-term rate of return on plan assets would have a $28 million impact for the year ending December 31, 2025, and would have had a $31 million impact for the year ended December 31, 2024, to the expected returns on plan assets, respectively.

ITEM 4. CONTROLS AND PROCEDURES

Senior management of both Dominion Energy and Virginia Power, including Dominion Energy and Virginia Power’s CEO and CFO, evaluated the effectiveness of each company’s disclosure controls and procedures as of the end of the period covered by this report. Based on this evaluation process, each of Dominion Energy and Virginia Power’s CEO and CFO have concluded that each company’s disclosure controls and procedures are effective.

There were no changes that occurred during the last fiscal quarter that materially affected, or are reasonably likely to materially affect, Dominion Energy or Virginia Power’s internal control over financial reporting.

81

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

From time to time, the Companies are parties to various legal, environmental or other regulatory proceedings, including in the ordinary course of business. SEC regulations require disclosure of certain environmental matters when a governmental authority is a party to the proceedings and such proceedings involve potential monetary sanctions that the Companies reasonably believe will exceed a specified threshold. Pursuant to the SEC regulations, the Companies use a threshold of $1 million for such proceedings.

See the following for discussions on various legal, environmental and other regulatory proceedings to which the Companies are a party, which information is incorporated herein by reference:

•
Notes 13 and 23 to the Consolidated Financial Statements and Future Issues and Other Matters in MD&A in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024.
•
Notes 13 and 17 to the Consolidated Financial Statements and Future Issues and Other Matters in MD&A in this report.

ITEM 1A. RISK FACTORS

The Companies’ businesses are influenced by many factors that are difficult to predict, involve uncertainties that may materially affect actual results and are often beyond the Companies’ control. A number of these risk factors have been identified in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024, which should be taken into consideration when reviewing the information contained in this report. There have been no material changes with regard to the risk factors previously disclosed in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2024. For other factors that may cause actual results to differ materially from those indicated in any forward-looking statement or projection contained in this report, see Forward-Looking Statements in MD&A in this report.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Dominion Energy

Purchases of Equity Securities

Period |  | Total Number of Shares (or Units) Purchased(1) |  |  | Average Price Paid per Share (or Unit)(2) |  |  | Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs |  |  | Maximum Number (or Approximate Dollar Value) of Shares (or Units) that May Yet Be Purchased under the Plans or Programs(3)
7/1/25 - 7/31/25 |  |  | — |  |  | $ | — |  |  |  | — |  |  | $ | 0.92 billion
8/1/25 - 8/31/25 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 0.92 billion
9/1/25 - 9/30/25 |  |  | 331 |  |  |  | 59.64 |  |  |  | — |  |  |  | 0.92 billion
Total |  |  | 331 |  |  | $ | 59.64 |  |  |  | — |  |  | $ | 0.92 billion

(1)
Represents shares of common stock that were tendered by employees to satisfy tax withholding obligations on vested restricted stock.
(2)
Represents the weighted-average price paid per share.
(3)
In November 2020, the Dominion Energy Board of Directors authorized the repurchase of up to $1.0 billion of shares of common stock. This repurchase program has no expiration date or price or volume targets and may be modified, suspended or terminated at any time. Shares may be purchased through open market or privately negotiated transactions or otherwise at the discretion of management subject to prevailing market conditions, applicable securities laws and other factors.

ITEM 5. OTHER INFORMATION

During the last fiscal quarter, none of the Companies’ directors or officers (as defined in Rule 16a-1(f) under the Exchange Act) adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.

82

ITEM 6. EXHIBITS

Exhibit Number |  | Description |  | Dominion Energy |  | Virginia Power
3.1.a |  | Dominion Energy, Inc. Amended and Restated Articles of Incorporation, dated as of December 17, 2024 (Exhibit 3.1, Form 8-K filed December 17, 2024, File No.1-8489). |  | X |  |
3.1.b |  | Virginia Electric and Power Company Amended and Restated Articles of Incorporation, as in effect on October 30, 2014 (Exhibit 3.1.b, Form 10-Q filed November 3, 2014, File No. 1-2255). |  |  |  | X
3.2.a |  | Dominion Energy, Inc. Bylaws, as amended and restated, effective June 26, 2025 (Exhibit 3.1, Form 8-K filed June 27, 2025, File No. 1-8489). |  | X |  |
3.2.b |  | Virginia Electric and Power Company Amended and Restated Bylaws, effective June 1, 2009 (Exhibit 3.1, Form 8-K filed June 3, 2009, File No. 1-2255). |  |  |  | X
4 |  | Dominion Energy, Inc. and Virginia Electric and Power Company agree to furnish to the Securities and Exchange Commission upon request any other instrument with respect to long-term debt as to which the total amount of securities authorized does not exceed 10% of any of their total consolidated assets. |  | X |  | X
4.1 |  | Junior Subordinated Indenture II, dated June 1, 2006, between Dominion Resources, Inc. and The Bank of New York Mellon (successor to JPMorgan Chase Bank, N.A.), as Trustee (Exhibit 4.1, Form 10-Q for the quarter ended June 30, 2006 filed August 3, 2006, File No. 1-8489); Third Supplemental and Amending Indenture, dated as of June 1, 2009 (Exhibit 4.2, Form 8-K filed June 15, 2009, File No. 1-8489); Seventh Supplemental Indenture, dated as of September 1, 2014 (Exhibit 4.3, Form 8-K filed October 3, 2014, File No. 1-8489); Fifteenth Supplemental Indenture, dated June 27, 2019 (Exhibit 4.6, Form 8-K filed June 27, 2019, File No. 1-8489); Sixteenth Supplemental Indenture, dated as of May 1, 2024 (Exhibit 4.3, Form 8-K filed May 20, 2024, File No. 1-8489); Seventeenth Supplemental Indenture, dated as of May 1, 2024 (Exhibit 4.4, Form 8-K filed May 20, 2024, File No. 1-8489); Eighteenth Supplemental Indenture, dated as of November 1, 2024 (Exhibit 4.3, Form 8-K filed November 18, 2024, File No. 1-8489); Nineteenth Supplemental Indenture, dated as of August 1, 2025 (Exhibit 4.3, Form 8-K filed August 6, 2025, File No. 1-8489); Twentieth Supplemental Indenture, dated as of August 1, 2025 (Exhibit 4.4, Form 8-K filed August 6, 2025, File No. 1-8489). |  | X |  |
4.2 |  | Senior Indenture, dated as of September 1, 2017, between Virginia Electric and Power Company and U.S. Bank National Association, as Trustee (Exhibit 4.1, Form 8-K filed September 13, 2017, File No.000-55337); First Supplemental Indenture, dated as of September 1, 2017 (Exhibit 4.2, Form 8-K filed September 13, 2017, File No.000-55337); Second Supplemental Indenture, dated as of March 1, 2018 (Exhibit 4.2, Form 8-K filed March 22, 2018, File No. 000-55337); Third Supplemental Indenture, dated as of November 1, 2018 (Exhibit 4.2, Form 8-K filed November 28, 2018, File No. 000-55337); Fourth Supplemental Indenture, dated as of July 1, 2019 (Exhibit 4.2, Form 8-K filed July 10, 2019, File No. 00-55337); Fifth Supplemental Indenture, dated as of December 1, 2019 (Exhibit 4.2, Form 8-K filed December 5, 2019, File No. 000-55337); Sixth Supplemental Indenture, dated as of December 1, 2020 (Exhibit 4.2, Form 8-K filed December 15, 2020, File No. 00-55337); Seventh Supplemental Indenture, dated as of November 1, 2021 (Exhibit 4.2, Form 8-K filed November 22, 2021, File No.000-55337); Eighth Supplemental Indenture, dated as of November 1, 2021 (Exhibit 4.3, Form 8-K filed November 22, 2021, File No.000-55337); Ninth Supplemental Indenture, dated as of January 1, 2022 (Exhibit 4.3, Form 8-K filed January 13, 2022, File No.000-55337); Tenth Supplemental Indenture, dated as of May 1, 2022 (Exhibit 4.2, Form 8-K filed May 31, 2022, File No. 000-55337); Eleventh Supplemental Indenture, dated as of May 1, 2022 (Exhibit 4.3, Form 8-K filed May 31, 2022, File No. 000-55337); Twelfth Supplemental Indenture, dated as of March 1, 2023 (Exhibit 4.2. Form 8-K filed March 30, 2023, File No. 000-55337); Thirteenth Supplemental Indenture, dated as of March 1, 2023 (Exhibit 4.3. Form 8-K filed March 30, 2023, File No. 000-55337); Fourteenth Supplemental Indenture, dated as of August 1, 2023 (Exhibit 4.2. Form 8-K filed August 10, 2023, File No. 000-55337); Fifteenth Supplemental Indenture, dated as of August 1, 2023 (Exhibit 4.3. Form 8-K filed August 10, 2023, File No. 000-55337); Sixteenth Supplemental Indenture, dated as of January 1, 2024 (Exhibit 4.2. Form 8-K filed January 8, 2024, File No. 000-55337); Seventeenth Supplemental Indenture, dated as of January 1, 2024 (Exhibit 4.3. Form 8-K filed January 8, 2024, File No. 000-55337); Eighteenth Supplemental Indenture, dated as of August 1, 2024 (Exhibit 4.2, Form 8-K filed August 12, 2024, File No. 000-55337); Nineteenth Supplemental Indenture, dated as of August 1, 2024 (Exhibit 4.3, Form 8-K filed August 12, 2024, File No. 000-55337); Twentieth Supplemental |  | X |  | X

83

Exhibit Number |  | Description |  | Dominion Energy |  | Virginia Power
|  | Indenture, dated as of March 1, 2025 (Exhibit 4.2, Form 8-K filed March 3, 2025, File No. 000-55337); Twenty-First Supplemental Indenture, dated as of March 1, 2025 (Exhibit 4.3, Form 8-K filed March 3, 2025, File No. 000-55337); Twenty-Second Supplemental Indenture, dated as of September 1, 2025 (Exhibit 4.2, Form 8-K filed September 10, 2025, File No. 000-55337); Twenty-Third Supplemental Indenture, dated as of September 1, 2025 (Exhibit 4.3, Form 8-K filed September 10, 2025, File No. 000-55337). |  |  |  |
31.a |  | Certification by Chief Executive Officer of Dominion Energy, Inc. pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith). |  | X |  |
31.b |  | Certification by Chief Financial Officer of Dominion Energy, Inc. pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith). |  | X |  |
31.c |  | Certification by Chief Executive Officer of Virginia Electric and Power Company pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith). |  |  |  | X
31.d |  | Certification by Chief Financial Officer of Virginia Electric and Power Company pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith). |  |  |  | X
32.a |  | Certification to the Securities and Exchange Commission by Chief Executive Officer and Chief Financial Officer of Dominion Energy, Inc. as required by Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith). |  | X |  |
32.b |  | Certification to the Securities and Exchange Commission by Chief Executive Officer and Chief Financial Officer of Virginia Electric and Power Company as required by Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith). |  |  |  | X
99 |  | Condensed consolidated earnings statements (filed herewith). |  | X |  | X
101 |  | The following financial statements from Dominion Energy, Inc.’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2025, filed on October 31, 2025, formatted in iXBRL (Inline eXtensible Business Reporting Language): (i) Consolidated Statements of Income, (ii) Consolidated Statements of Comprehensive Income (iii) Consolidated Balance Sheets, (iv) Consolidated Statements of Equity, (v) Consolidated Statements of Cash Flows, and (vi) the Notes to Consolidated Financial Statements. The following financial statements from Virginia Electric and Power Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2025, filed on October 31, 2025, formatted in iXBRL (Inline eXtensible Business Reporting Language): (i) Consolidated Statements of Income, (ii) Consolidated Statements of Comprehensive Income, (iii) Consolidated Balance Sheets, (iv) Consolidated Statements of Equity (v) Consolidated Statements of Cash Flows, and (vi) the Notes to Consolidated Financial Statements. |  | X |  | X
104 |  | Cover Page Interactive Data File formatted in iXBRL (Inline eXtensible Business Reporting Language) and contained in Exhibit 101. |  | X |  | X

84

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

| DOMINION ENERGY, INC. Registrant
October 31, 2025 | /s/ Gary G. Ratliff, Jr.
| Gary G. Ratliff, Jr. Vice President, Controller and Chief Accounting Officer
| VIRGINIA ELECTRIC AND POWER COMPANY Registrant
October 31, 2025 | /s/ Gary G. Ratliff, Jr.
| Gary G. Ratliff, Jr. Vice President, Controller and Chief Accounting Officer

85