LEGAL NOTICE VIRGINIA ELECTRIC AND POWER COMPANY D/B/A DOMINION ENERGY On April 3, 2026, pursuant to 56-585.1 A 5 e of the Code of Virginia ("Code"), Virginia Electric and Power Company ("Dominion" or "Company") filed a petition ("Petition") with the State Corporation Commission ("Commission") for an annual update with respect to its coal combustion residuals ("CCR") rate adjustment clause, designated "Rider CCR," to recover costs incurred to comply with the requirements of Virginia Senate Bill 1355, codified as Code 10.1-1402.03. On October 26, 2021, by its Order Approving Rate Adjustment Clause in Case No. PUR-2021-00045 ("2021 Order"), the Commission granted the Company's request for approval of Rider CCR, to recover costs associated with certain environmental projects involving CCR removal at the Company's Bremo Power Station, Chesterfield Power Station, Possum Point Power Station, and Chesapeake Energy Center (collectively, the "Power Stations"). On December 3, 2025, by its Final Order issued in Case No. PUR2025-00063 ("2025 Rider CCR Proceeding"), the Commission approved the most recent annual update to Rider CCR. Dominion states that it is filing this annual update to inform the Commission of the status of CCR removal at the Power Stations and to provide the proposed cost allocation, rate design, and accounting treatment for Rider CCR for service rendered during a proposed rate year commencing January 1, 2027, and extending through December 31, 2027 ("Rate Year"). The Company states that the two components of the revenue requirement proposed in this proceeding are the Projected Cost Recovery Factor and the Actual Cost True-Up Factor. The Company requests a Projected Cost Recovery Factor revenue requirement of $224,726,384, and an Actual Cost True-Up Factor revenue requirement of $(7,571,400). Thus, the Company requests a total revenue requirement for Rider CCR for the Rate Year of $217,154,983. Dominion asserts that, consistent with the Company's 2025 Rider CCR Proceeding, the Company continues to allocate Rider CCR costs on an energy basis using a Factor 3 nonbypassable allocation methodology, as approved by the Commission in the 2021 Order. If the revised Rider CCR for the Rate Year is approved, the impact on customer bills would depend on the customer's rate schedule and usage. According to Dominion, implementation of its revised Rider CCR on January 1, 2027, would increase the monthly bill of a residential customer using 1,000 kilowatt hours per month by approximately $0.53. Interested persons are encouraged to review the Company's Petition, testimony and supporting exhibits for additional details concerning this matter. TAKE NOTICE that the Commission may apportion revenues among customer classes and/or design rates in a manner differing from that shown in the Petition and supporting documents and thus may adopt rates that differ from those appearing in the Company's Petition and supporting documents. The Commission entered an Order for Notice and Hearing in this proceeding that, among other things, scheduled a public hearing on Dominion's Petition. On September 9, 2026, at 10 a.m., the Hearing Examiner appointed to this case will hold a telephonic portion of the hearing for the purpose of receiving the testimony of public witnesses. On or before September 3, 2026, any person desiring to offer testimony as a public witness shall provide required contact information to the Commission. This information may be provided to the Commission: (i) by filling out a form on the Commission's website at scc.virginia.gov/case-information/webcasting; or (ii) by calling (804) 371-9141. This public witness hearing will be webcast at scc.virginia.gov/case-information/webcasting. On September 9, 2026, at 10 a.m., or at the conclusion of the public witness portion of the hearing, whichever is later, in the Commission's second floor courtroom located in the Tyler Building, 1300 East Main Street, Richmond, Virginia 23219, the Hearing Examiner will convene a hearing to receive testimony and evidence offered by the Company, respondents, and the Commission's Staff on the Petition. To promote administrative efficiency and timely service of filings upon participants, the Commission has directed the electronic filing of testimony and pleadings, unless they contain confidential information, and has required electronic service on parties to this proceeding. An electronic copy of the public version of the Company's Petition may be obtained by submitting a written request to counsel for the Company: Elaine S. Ryan, Esquire, McGuireWoods LLP, Gateway Plaza, 800 East Canal Street, Richmond, Virginia 23219, or eryan@mcguirewoods.com. Interested persons also may download unofficial copies of the public version of the Petition and other documents filed in this case from the Commission's website: scc.virginia.gov/case-information. On or before September 3, 2026, any interested person may submit comments on the Petition electronically by following the instructions on the Commission's website: scc.virginia.gov/case-information/submit-public-comments. Those unable, as a practical matter, to submit comments electronically may file such comments by U.S. mail to the Clerk of the State Corporation Commission, c/o Document Control Center, P.O. Box 2118, Richmond, Virginia 23218-2118. All comments shall refer to Case No. PUR-2026-00043. On or before July 2, 2026, any person or entity wishing to participate as a respondent in this proceeding may do so by filing a notice of participation with the Clerk of the Commission at: scc.virginia.gov/clk/efiling. Those unable, as a practical matter, to file a notice of participation electronically may file such notice by U.S. mail to the Clerk of the Commission at the address listed above. Such notice of participation shall include the email addresses of such parties or their counsel, if available. A copy of the notice of participation as a respondent also must be served electronically on counsel for the Company, any other respondents, and the Commission's Staff. Pursuant to 5 VAC 5-20- 80 B, Participation as a respondent, of the Commission's Rules of Practice and Procedure, 5 VAC 5-20-10 et seq. ("Rules of Practice"), any notice of participation shall set forth: (i) a precise statement of the interest of the respondent; (ii) a statement of the specific action sought to the extent then known; and (iii) the factual and legal basis for the action. Any notice of participation filed by a person not represented by counsel shall also set forth why the filer's positions in this matter are not adequately represented by another party to this proceeding and cannot be expressed through written or oral public comments as provided for in this proceeding. Any organization, corporation, or government body participating as a respondent must be represented by counsel as required by 5 VAC 5-20-30, Counsel, of the Rules of Practice. All filings shall refer to Case No. PUR-2026-00043. For additional information about participation as a respondent, any person or entity should obtain a copy of the Commission's Order for Notice and Hearing. On or before July 30, 2026, each respondent may file electronically with the Clerk of the Commission at scc.virginia.gov/clk/efiling any testimony and exhibits by which the respondent expects to establish its case. Any respondent unable, as a practical matter, to file testimony and exhibits electronically may file such by U.S. mail to the Clerk of the Commission at the address listed above. Each witness's testimony shall include a summary not to exceed one page. All testimony and exhibits shall be served electronically on the Commission's Staff, the Company, and all other respondents simultaneously with their filing. In all filings, respondents shall comply with the Commission's Rules of Practice, as modified by the Commission's Order for Notice and Hearing, including, but not limited to: 5 VAC 5-20-140, Filing and service, and 5 VAC 5-20-240, Prepared testimony and exhibits. All filings shall refer to Case No. PUR-2026-00043. Any documents filed in paper form with the Office of the Clerk of the Commission in this docket may use both sides of the paper. In all other respects, except as modified by the Commission's Order for Notice and Hearing, all filings shall comply fully with the requirements of 5 VAC 5-20-150, Copies and format, of the Commission's Rules of Practice. The Commission's Rules of Practice, the Commission's Order for Notice and Hearing, and the public version of the Petition and other documents filed in this case may be viewed on the Commission's website at: scc.virginia.gov/case-information. NOTICE TO THE PUBLIC OF PETITION BY VIRGINIA ELECTRIC AND POWER COMPANY FOR REVISION OF RATE ADJUSTMENT CLAUSE: RIDER CCR, FOR THE RECOVERY OF COSTS INCURRED TO COMPLY WITH 10.1-1402.03 OF THE CODE OF VIRGINIA, PURSUANT TO CODE 56-585.1 A 5 E CASE NO. PUR-2026-00043