Dominion Energy Files Preliminary Prospectus for Multi-Tranche Senior Notes Offering

Offering Overview

On November 2, 2026, Dominion Energy, Inc. filed a preliminary prospectus supplement pursuant to Rule 424(b)(5) under Registration Statement No. 333-291189 for a two-part senior unsecured notes offering:

• 2026 Series B Senior Notes due November 15, 2029 (interest payable semi-annually on May 15 and November 15, commencing May 15, 2027).
• 2026 Series C Senior Notes due January 15, 2037 (interest payable semi-annually on January 15 and July 15, commencing July 15, 2027).

Use of Proceeds

Dominion Energy intends to allocate net proceeds from the offering toward general corporate purposes and the repayment of short-term indebtedness, which included approximately $2.0 billion in commercial paper outstanding as of September 30, 2026 (weighted average yield of 4.18% and average maturity of ~16 days).

Key Terms & Structure

• Ranking: Unsecured senior obligations ranking equally with all other existing and future senior unsecured indebtedness.
• Optional Redemption: Includes standard make-whole call provisions prior to par call dates (October 15, 2029 for Series B; October 15, 2036 for Series C).
• Special Tax Credit Event Redemption: Redeemable in whole at 101% of principal plus accrued interest if specific tax credit eligibility restrictions under Section 38/7701(a)(51)(B) of the Internal Revenue Code are triggered.
• Listing: Neither series will be listed on any securities exchange.