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Regulatory Matters - Schedule of Additional Significant Riders Associated with Virginia Power Projects (Detail) - Virginia Electric and Power Company - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Mar. 31, 2025 | Jun. 30, 2025
Rider CCR |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Application Date | [1] |  | 2025-04
Approval Date | [1] |  | Pending
Rate Year Beginning | [1] |  | 2026-01
Total Revenue Requirement (millions) | [1],[2] |  | $ 166
Increase (decrease) in revenue requirement | [1] |  | $ (63)
Rider CE |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Application Date | [3] |  | 2024-10
Approval Date | [3] |  | April 2025
Rate Year Beginning | [3] |  | 2025-05
Total Revenue Requirement (millions) | [2],[3] |  | $ 182
Increase (decrease) in revenue requirement | [3] |  | $ 49
Rider DIST |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Application Date | [4] |  | 2024-08
Approval Date | [4] |  | May 2025
Rate Year Beginning | [4] |  | 2025-06
Total Revenue Requirement (millions) | [2],[4] |  | $ 267
Rider GEN |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Application Date | [5] |  | 2024-06
Approval Date | [5] |  | February 2025
Rate Year Beginning | [5] |  | 2025-04
Total Revenue Requirement (millions) | [2],[5] |  | $ 438
Rider GEN One |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Application Date |  |  | 2024-06
Approval Date |  |  | February 2025
Rate Year Beginning |  |  | 2026-04
Total Revenue Requirement (millions) | [2] | $ 311 |
Increase (decrease) in revenue requirement |  |  | $ (127)
Rider SNA |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Application Date | [6] |  | 2024-10
Approval Date | [6] |  | July 2025
Rate Year Beginning | [6] |  | 2025-09
Total Revenue Requirement (millions) | [2],[6] |  | $ 207
Increase (decrease) in revenue requirement | [6] |  | $ 138
Rider T1 |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Application Date | [7] |  | 2025-05
Rate Year Beginning | [7] |  | 2025-09
Total Revenue Requirement (millions) | [2],[7] |  | $ 1,343
Increase (decrease) in revenue requirement | [7] |  | $ 173
[1] | In connection with this application, Virginia Power also requests to extend existing rates for Rider CCR by one month through December 2025.
[2] | In addition, Virginia Power has riders associated with other projects with a total annual revenue requirement of $42 million and a pending application associated with the Chesterfield Energy Reliability Center described above, which if approved would result in a net annual revenue requirement increase of $36 million.
[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] | 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.
[5] | 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.
[6] | 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.
[7] | Consists of $561 million for the transmission component of Virginia Power’s base rates and $782 million for Rider T1.

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