Regulatory Matters (Tables)

3 Months Ended

Mar. 31, 2024

Public Utilities General Disclosures [Line Items]

Summary of Significant Virginia Power Electric Transmission Projects Applied

Description and Location of Project	Application Date	Approval Date	Type of Line	Miles of Lines	Cost Estimate (millions)(1)
Construct new Aspen and Golden substations,   transmission lines and related projects in Loudoun   County, Virginia	March 2024	Pending	500- 230 kV	10	$	690
Partial rebuild Fredericksburg-Aquia Harbour   transmission lines and related projects in Stafford   County and the City of Fredericksburg, Virginia	March 2024	Pending	230- 115 kV	24		135
Construct new Apollo-Twin Creeks transmission   lines, new substations and related projects in   Loudoun County, Virginia	March 2024	Pending	230 kV	2		285
Rebuild Dooms-Harrisonburg transmission lines   and related projects in the Counties of Augusta   and Rockingham and the Town of Grottoes,   Virginia	April 2024	Pending	230 kV	22		60

(1)Represents the cost estimate included in the application except as updated in the approval if applicable. In addition, Virginia Power had various other transmission projects approved or applied for and currently pending approval with aggregate cost estimates of approximately $45 million and $100 million, respectively.

Virginia Electric and Power Company

Public Utilities General Disclosures [Line Items]

Significant Riders Associated With Virginia Power Projects

Rider Name	Application Date	Approval Date	Rate Year Beginning	Total Revenue Requirement (millions)(1)		Increase (Decrease) from Previous (millions)
Rider CCR	March 2024	Pending	December 2024	$	103	$	(91	)
Rider CE(2)	October 2023	March 2024	May 2024		133		44
Rider GT	August 2023	May 2024	June 2024		145		131
Rider T1(3)	May 2024	Pending	September 2024		1,170		291

(1)In addition, Virginia Power has various riders associated with other projects with an aggregate total annual revenue requirement of approximately $120 million as of March 31, 2024.

(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)Consists of $532 million for the transmission component of Virginia Power’s base rates and $638 million for Rider T1.