Credit Risk	9 Months Ended
Sep. 30, 2024
Risks and Uncertainties [Abstract]
Credit Risk	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, 2023. At September 30, 2024, Dominion Energy’s credit exposure totaled $138 million, primarily related to price risk management activities. Of this amount, investment grade counterparties, including those internally rated, represented 74%. No single counterparty, whether investment grade or non-investment grade, exceeded $28 million of exposure. At September 30, 2024, Virginia Power’s exposure related to wholesale customers totaled $82 million. Of this amount, investment grade counterparties, including those internally rated, represented 58%. 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 $19 million and $13 million, respectively, as of September 30, 2024, and $28 million and $14 million, respectively, as of December 31, 2023. 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 posted collateral at September 30, 2024 or December 31, 2023 related to derivatives with credit-related contingent provisions that are in a liability position and not fully collateralized with cash. In addition, Dominion Energy and Virginia Power had both posted letters of credit as collateral with counterparties covering less than $1 million of fair value of derivative instruments in a liability position at December 31, 2023. 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 $19 million and $13 million, respectively, as of September 30, 2024 and $28 million and $14 million, respectively, as of December 31, 2023, which does not include the impact of any offsetting asset positions. See Note 9 for additional information about derivative instruments.

Credit Risk

9 Months Ended

Sep. 30, 2024

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, 2023.

At September 30, 2024, Dominion Energy’s credit exposure totaled $138 million, primarily related to price risk management activities. Of this amount, investment grade counterparties, including those internally rated, represented 74%. No single counterparty, whether investment grade or non-investment grade, exceeded $28 million of exposure. At September 30, 2024, Virginia Power’s exposure related to wholesale customers totaled $82 million. Of this amount, investment grade counterparties, including those

internally rated, represented 58%. 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 $19 million and $13 million, respectively, as of September 30, 2024, and $28 million and $14 million, respectively, as of December 31, 2023. 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 posted collateral at September 30, 2024 or December 31, 2023 related to derivatives with credit-related contingent provisions that are in a liability position and not fully collateralized with cash. In addition, Dominion Energy and Virginia Power had both posted letters of credit as collateral with counterparties covering less than $1 million of fair value of derivative instruments in a liability position at December 31, 2023. 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 $19 million and $13 million, respectively, as of September 30, 2024 and $28 million and $14 million, respectively, as of December 31, 2023, which does not include the impact of any offsetting asset positions.

See Note 9 for additional information about derivative instruments.