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Regulatory Matters (Tables) | 3 Months Ended
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Mar. 31, 2023
Public Utilities General Disclosures [Line Items] |
Summary of Significant Virginia Power Electric Transmission Projects Applied | Developments for significant Virginia Power electric transmission projects approved or applied for are as follows:
Description and Location of Project |  | Application Date |  | Approval Date |  | Type of Line |  | Miles of Lines |  | Cost Estimate (millions) |
Partial rebuild of Bristers-Ox 115 kV line in Fauquier and Prince William Counties, Virginia |  | August 2022 |  | April 2023 |  | 230 kV |  | 15 |  | $ | 40 |
Construct new Mars and Wishing Star substations, transmission lines and related projects in Loudoun County, Virginia |  | October 2022 |  | April 2023 |  | 500/230 kV |  | 4 |  |  | 720 |
Rebuild of Lines #2019 and #2007 in the City of Virginia Beach, Virginia |  | February 2023 |  | Pending |  | 230 kV |  | 5 |  |  | 95 |
Install transformer at Possum Point substation, rebuild and construct transmission lines and related projects in Prince William County, Virginia |  | March 2023 |  | Pending |  | 230 kV |  | 2 |  |  | 35 |
Partial rebuild of Line #2011 in the Cities of Manassas and Manassas Park, Virginia and Prince William and Fairfax Counties, Virginia |  | March 2023 |  | Pending |  | 230 kV |  | 7 |  |  | 35 |
Virginia Electric and Power Company |
Public Utilities General Disclosures [Line Items] |
Significant Riders Associated With Virginia Power Projects | Developments for significant riders associated with various Virginia Power projects are as follows:
Rider Name |  | Application Date |  | Approval Date |  | Rate Year Beginning |  | Total Revenue Requirement (millions) |  |  | Increase (Decrease) Over Previous Year (millions) |
Rider CCR |  | February 2023 |  | Pending |  | December 2023 |  | $ | 194 |  |  | $ | (37 | )
Rider CE(1) |  | October 2022 |  | April 2023 |  | May 2023 |  |  | 89 |  |  |  | 18 |
Rider GT |  | August 2022 |  | April 2023 |  | June 2023 |  |  | 14 |  |  |  | (42 | )
Rider R |  | June 2021 |  | March 2022 |  | April 2023 |  |  | 55 |  | (4) |  | (4 | )
Rider S |  | June 2021 |  | February 2022 |  | April 2023 |  |  | 191 |  | (4) |  | (1 | )
Rider T1(2) |  | May 2023 |  | Pending |  | September 2023 |  |  | 879 |  |  |  | 173 |
Rider U(3) |  | June 2022 |  | February 2023 |  | April 2023 |  |  | 74 |  |  |  | (21 | )
Rider US-3 |  | August 2022 |  | April 2023 |  | June 2023 |  |  | 40 |  |  |  | (10 | )
Rider US-4 |  | August 2022 |  | April 2023 |  | June 2023 |  |  | 16 |  |  |  | 1 |
Rider W(5) |  | June 2022 |  | February 2023 |  | April 2023 |  |  | 105 |  | (4) |  | (16 | )
(1) Associated with solar generation and energy storage projects requested for approval in October 2022 and certain small-scale solar projects in addition to previously approved Rider CE projects. (2) Consists of $510 million for the transmission component of Virginia Power's base rates and $369 million for Rider T1. (3) Consists of previously approved phases of Rider U. (4) In May 2023, Virginia Power filed a notification with the Virginia Commission to combine Riders R, S and W, which have an aggregate revenue requirement of $351 million, into base rates effective July 2023 in accordance with legislation enacted in Virginia in April 2023. (5) In February 2023, the Virginia Commission also approved Virginia Power's requested revenue requirement for the rate year beginning April 2024. However, as Virginia Power provided notification in May 2023 to combine Rider W into base rates as discussed above, Rider W will cease to be separately collected effective July 2023.

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