道明尼能源美股招股说明书(2025-09-29版)

Dominion Energy, Inc. $2025 Series A Junior Subordinated Notes due 2056$2025 Series B Junior Subordinated Notes due 2056 We are offering $aggregate principal amount of our existing 2025 Series A Junior Subordinated Notes due 2056 (the New Series A JuniorSubordinated Notes) and $aggregate principal amount of our existing 2025 Series B Junior Subordinated Notes due 2056 (the New Series B JuniorSubordinated Notes and, collectively with the New Series A Junior Subordinated Notes, the New Junior Subordinated Notes). The New Series A JuniorSubordinated Notes will have the same terms (other than issue date and public offering price) as, and will constitute a single series with, the $825,000,000aggregate principal amount of our existing 2025 Series A Junior Subordinated Notes due 2056 we issued on August 6, 2025 (the Initial Series A JuniorSubordinated Notes and, together with the New Series A Junior Subordinated Notes, the Series A Junior Subordinated Notes). The New Series B JuniorSubordinated Notes will have the same terms (other than issue date and public offering price) as, and constitute a single series with, the $700,000,000 aggregateprincipal amount of our existing 2025 Series B Junior Subordinated Notes due 2056 we issued on August 6, 2025 (the Initial Series B Junior Subordinated Notesand, together with the New Series B Junior Subordinated Notes, the Series B Junior Subordinated Notes, and the Series B Junior Subordinated Notes togetherwith the Series A Junior Subordinated Notes, the Junior Subordinated Notes). The New Series A Junior Subordinated Notes and the New Series B JuniorSubordinated Notes will rankpari passuwith, and vote together with, the Initial Series A Junior Subordinated Notes and the Initial Series B Junior SubordinatedNotes, respectively, on any matter submitted to the holders of the applicable series. The New Series A Junior Subordinated Notes and the New Series B JuniorSubordinated Notes will have the same CUSIP number and ISIN as the Initial Series A Junior Subordinated Notes and the Initial Series B Junior SubordinatedNotes, respectively. The New Series A Junior Subordinated Notes and the New Series B Junior Subordinated Notes will be fungible with the Initial SeriesAJunior Subordinated Notes and the Initial Series B Junior Subordinated Notes, respectively, for U.S. federal income tax purposes. Upon the issuance of the NewJunior Subordinated Notes, the outstanding aggregate principal amount of the Series A Junior Subordinated Notes will be $and the outstanding aggregateprincipal amount of the Series B Junior Subordinated Notes will be $. The New Series A Junior Subordinated Notes will bear interest (i) from and including August6, 2025 (the Original Issue Date) to, but excluding,February15, 2031 (the First Series A Reset Date) at the rate of 6.000% per year and (ii) from and including the First Series A Reset Date, during each ResetPeriod (as defined herein), at a rate per year equal to the Five-year U.S. Treasury Rate (as defined herein) as of the most recent Reset Interest Determination Date(as defined herein) plus a spread of 2.262%, to be reset on each SeriesA Reset Date (as defined herein); provided, that the interest rate during any Reset Periodwill not reset below 6.000% (which equals the initial interest rate on the Series A Junior Subordinated Notes). The New Series B Junior Subordinated Notes will bear interest (i)from and including the Original Issue Date to, but excluding, February15, 2036 (theFirst Series B Reset Date) at the rate of 6.200% per year and (ii)from and including the First Series B Reset Date, during each Reset Period, at a rate per yearequal to the Five-year U.S. Treasury Rate as of the most recent Reset Interest Determination Date plus a spread of 2.006%, to be reset on each Series B ResetDate (as defined herein); provided, that the interest rate during any Reset Period will not reset below 6.200% (which equals the initial interest rate on the SeriesB Junior Subordinated Notes). Subject to our right to defer interest payments as described below, we will pay interest on each series of Junior Subordinated Notessemi-annuallyinarrears on February15 and August15 of each year, beginning February15, 2026. Each series of Junior Subordinated Notes will mature on February15, 2056. We may defer interest payments on either or both series of the Junior Subordinated Notes on one or more occasions for up to 10consecutive years perdeferral period as described in this prospectus supplement. Deferred interest payments with respect to a given series of the Junior Subordinated Notes willaccumulate additional interest at a rate equal to the interest rate then applicable to that series of Junior Subordinated Notes, to the extent permitted by law. We may redeem the Junior Subordinated Notes at our option at the times and at the redemption prices described in this prospectus supplement. No application has been or is intended to be made for the listing or trading of either