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Regulatory Matters - Summary of Virginia Power Electric Transmission Project Applied (Detail) - Virginia Electric and Power Company $ in Millions | 6 Months Ended
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Jun. 30, 2022 USD ($) kV mi
Elmont-Ladysmith rebuild and related projects in the Counties of Hanover and Caroline, Virginia |
Public Utilities General Disclosures [Line Items] |
Application Date | 2021-04
Approval Date | 2022-04
Type of Line | kV | 500
Miles of Lines | mi | 26
Cost Estimate | $ | $ 95
Nimbus line loop and substation and new 230 kV line in the County of Loudon, Virginia |
Public Utilities General Disclosures [Line Items] |
Application Date | 2022-02
Type of Line | kV | 230
Miles of Lines | mi | 1
Cost Estimate | $ | $ 40
Build new DTC substation and line loop in the County of Loudoun, Virginia |
Public Utilities General Disclosures [Line Items] |
Application Date | 2021-12
Approval Date | 2022-07
Type of Line | kV | 230
Miles of Lines | mi | 1
Cost Estimate | $ | $ 105
Partial rebuild of bristers-ox 115 kv line in fauquier and prince william counties, virginia |
Public Utilities General Disclosures [Line Items] |
Application Date | 2022-08
Type of Line | kV | 115
Miles of Lines | mi | 15
Cost Estimate | $ | $ 40

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