XML 163 R142.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Regulatory Matters - Schedule of Additional Significant Riders Associated with Virginia Power Projects (Detail) - Virginia Electric and Power Company $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($)
Rider CCR |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2024-03 |
Approval Date | November 2024 |
Rate Year Beginning | 2024-12 |
Total Revenue Requirement (millions) | $ 103 | [1]
Increase (decrease) in revenue requirement | $ (91) |
Rider CE |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2023-10 | [2]
Approval Date | March 2024 | [2]
Rate Year Beginning | 2024-05 | [2]
Total Revenue Requirement (millions) | $ 133 | [1],[2]
Increase (decrease) in revenue requirement | $ 44 | [2]
Rider CE |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2024-10 | [3]
Approval Date | Pending | [3]
Rate Year Beginning | 2025-05 | [3]
Total Revenue Requirement (millions) | $ 182 | [1],[3]
Increase (decrease) in revenue requirement | $ 49 | [3]
Rider DIST |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2024-08 | [4]
Approval Date | Pending | [4]
Rate Year Beginning | 2025-06 | [4]
Total Revenue Requirement (millions) | $ 269 | [1],[4]
Rider E |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2024-01 |
Approval Date | September 2024 |
Rate Year Beginning | 2024-11 |
Total Revenue Requirement (millions) | $ 72 | [1]
Increase (decrease) in revenue requirement | $ (37) |
Rider E |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2025-01 |
Approval Date | Pending |
Rate Year Beginning | 2025-11 |
Total Revenue Requirement (millions) | $ 37 | [1]
Increase (decrease) in revenue requirement | $ (35) |
Rider GT |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2023-08 | [4]
Approval Date | May 2024 | [4]
Rate Year Beginning | 2024-06 | [4]
Total Revenue Requirement (millions) | $ 145 | [1],[4]
Increase (decrease) in revenue requirement | $ 131 | [4]
Rider GV |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2023-06 | [5]
Approval Date | February 2024 | [5]
Rate Year Beginning | 2024-04 | [5]
Total Revenue Requirement (millions) | $ 132 | [1],[5]
Increase (decrease) in revenue requirement | $ 5 | [5]
Rider GV |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2023-06 | [5]
Approval Date | February 2024 | [5]
Rate Year Beginning | 2025-04 | [5]
Total Revenue Requirement (millions) | $ 135 | [1],[5]
Increase (decrease) in revenue requirement | $ 3 | [5]
Rider GEN |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2024-06 | [5]
Approval Date | Pending | [5]
Rate Year Beginning | 2025-04 | [5]
Total Revenue Requirement (millions) | $ 438 | [1],[5]
Rider GEN |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2024-06 |
Approval Date | Pending |
Rate Year Beginning | 2026-04 |
Total Revenue Requirement (millions) | $ 311 | [1]
Increase (decrease) in revenue requirement | $ (127) |
Rider OSW |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2023-11 |
Approval Date | July 2024 |
Rate Year Beginning | 2024-09 |
Total Revenue Requirement (millions) | $ 486 | [1]
Increase (decrease) in revenue requirement | $ 215 |
Rider OSW |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2024-11 | [6]
Approval Date | Pending | [6]
Rate Year Beginning | 2025-09 | [6]
Total Revenue Requirement (millions) | $ 640 | [1],[6]
Increase (decrease) in revenue requirement | $ 154 | [6]
Rider BW |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2021-10 | [5]
Approval Date | May 2022 | [5]
Rate Year Beginning | 2023-09 | [5]
Total Revenue Requirement (millions) | $ 120 | [1],[5]
Increase (decrease) in revenue requirement | $ (25) | [5]
Rider RPS |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2023-12 | [7]
Approval Date | August 2024 |
Rate Year Beginning | 2024-09 |
Total Revenue Requirement (millions) | $ 358 | [1]
Increase (decrease) in revenue requirement | $ 262 |
Rider RPS |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2024-12 |
Approval Date | Pending |
Rate Year Beginning | 2025-09 |
Total Revenue Requirement (millions) | $ 609 | [1]
Increase (decrease) in revenue requirement | $ 251 |
Rider SNA |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2023-10 |
Approval Date | June 2024 |
Rate Year Beginning | 2024-09 |
Total Revenue Requirement (millions) | $ 69 | [1]
Increase (decrease) in revenue requirement | $ 19 |
Rider SNA |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2024-10 | [8]
Approval Date | Pending | [8]
Rate Year Beginning | 2025-09 | [8]
Total Revenue Requirement (millions) | $ 207 | [1],[8]
Increase (decrease) in revenue requirement | $ 138 | [8]
Rider T1 |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2024-05 | [9]
Approval Date | July 2024 | [9]
Rate Year Beginning | 2024-09 | [9]
Total Revenue Requirement (millions) | $ 1,170 | [1],[9]
Increase (decrease) in revenue requirement | $ 291 | [9]
Rider U |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2023-10 | [4],[10]
Approval Date | July 2024 | [4],[10]
Rate Year Beginning | 2024-08 | [4],[10]
Total Revenue Requirement (millions) | $ 150 | [1],[4],[10]
Increase (decrease) in revenue requirement | $ 76 | [4],[10]
DSM Riders |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2023-12 | [11]
Approval Date | July 2024 | [11]
Rate Year Beginning | 2024-09 | [11]
Total Revenue Requirement (millions) | $ 86 | [1],[11]
Increase (decrease) in revenue requirement | $ (21) | [11]
DSM Riders |  |
Public Utilities General Disclosures [Line Items] |  |
Application Date | 2024-12 | [12]
Approval Date | Pending | [12]
Rate Year Beginning | 2025-09 | [12]
Total Revenue Requirement (millions) | $ 97 | [1],[12]
Increase (decrease) in revenue requirement | $ 11 | [12]
[1] | In addition, Virginia Power has various riders associated with other projects with an aggregate total annual revenue requirement of approximately $18 million as of December 31, 2024. There are various pending applications associated with such riders, which if approved, would result in a net increase of approximately $24 million.
[2] | The Virginia Commission approved four solar generation projects and 13 power purchase agreements in addition to previously approved Rider CE projects. In addition, the approved total revenue requirement includes amounts which had previously been collected under a separate rider.
[3] | Associated with two solar generation projects, two small-scale solar projects and 24 power purchase agreements in addition to previously approved Rider CE projects and power purchase agreements.
[4] | Rider DIST consists of $103 million in total revenue requirement for certain previously approved electric distribution grid transformation projects and $166 million for previously approved phases and proposed phase eight of certain new underground distribution facilities. If approved, would result in the consolidation of Riders GT and U and cease the separate collection of rates under these riders 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 requests approval to recover costs associated with the Virginia LNG Storage Facility described above.
[6] | Includes a proposal for Virginia Power to establish a decommissioning trust fund associated with the CVOW Commercial Project. If approved, the applicable amount included within the total revenue requirement would be allocated for such purposes.
[7] | Virginia Power amended its application in February 2024.
[8] | Virginia Power also requested approval of cost recovery of approximately $1.7 billion through Rider SNA for the second phase of nuclear life extension program which includes investments for calendar years 2025 through 2027.
[9] | Consists of $532 million for the transmission component of Virginia Power’s base rates and $638 million for Rider T1.
[10] | Consists of $72 million for previously approved phases and $78 million for phase seven costs for Rider U. In addition, the Virginia Commission approved Virginia Power’s request to extend existing rates for Rider U through July 2024.
[11] | Associated with an additional three new energy efficiency programs and one new demand response program with a $102 million cost cap, with the ability to exceed the cost cap by no more than 15%.
[12] | Associated with three redesigned energy efficiency programs, one new and two redesigned demand response program and one demand response pilot with a $222 million cost cap, with the ability to exceed the cost cap by no more than 15%.

X
- Definition Application date of public utilities transmission. + References No definition available. + Details
Name: | d_ApplicationDateOfPublicUtilitiesTransmission
Namespace Prefix: | d_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description of the approval date of public utilities projects. + References No definition available. + Details
Name: | d_ApprovalDateOfPublicUtilitiesProjectsDescription
Namespace Prefix: | d_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Public Utilities, Requested Rate, Amount + References No definition available. + Details
Name: | d_PublicUtilitiesRequestedRateAmount
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Public utilities, start date of proposed rate in month and year. + References No definition available. + Details
Name: | d_PublicUtilitiesStartDateOfProposedRate
Namespace Prefix: | d_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of public utility's approved rate increase (decrease) by regulatory agency. + References No definition available. + Details
Name: | us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_PublicUtilitiesGeneralDisclosuresLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=d_VirginiaElectricAndPowerCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderCCRMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderCEMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RideCEOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderDistMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderEMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderEOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderGTMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderGVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderGVOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderGenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderGenOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderOSWMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderOSWOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderBWMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderRPSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderRPSOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderSNAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderSNAOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderT1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_DSMRidersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_DSMRidersOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |