Investor Presentaiton

Fixed income Schedule of debt maturities as of March 31, 2023 ($M) Due Date Financing Entity Segment DE Virginia Gas Dist DE SC Con Assets Corp & Other Total 2026 3.15% 2016 Series A Senior Notes 6.99% Private Placement Senior Notes 1.45% 2021 Series A Senior Notes 2.85% 2016 Series D Senior Notes 01/15/26 VEPCO 01/15/26 PSNC 750 50 04/15/26 DEI 08/15/26 DEI 6.875% Debentures (former CNG subsidiary) 10/15/26 DEI 750 50 564 564 400 400 6 6 2.95% 2016 Series B Senior Notes 11/15/26 VEPCO 7.45% Private Placement Senior Notes 4.82% Secured Senior Notes (Eagle Solar) 2026 Total 12/15/26 PSNC multiple DGI Sub 400 50 20 400 5 80 1,150 100 20 22 20 970 2,240 2027 3.60% 2020 Series B Senior Notes 3.50% 2017 Series A Senior Notes 3.75% 2022 Series B Senior Notes 3.28% Series B Private Placement Senior Notes 6.80% Debentures (former CNG subsidiary) 4.82% Secured Senior Notes (Eagle Solar) 2027 Total Dominion 1 Excludes finance leases and other long-term debt. Energy® 03/15/27 03/15/27 DEI VEPCO 750 05/15/27 VEPCO 600 12/01/27 QGC 12/15/27 multiple 110 DEI DGI Sub 350 350 750 600 110 83 83 21 21 1,350 110 21 433 1,914 Total $ 3,200 $ 750 $ $ 2,408 $ 7,953 $ 14,311 27

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