Dominion Energy, Inc. · NYSE:D

Dominion Energy — Investor Day (March 2024)

80 slides from Dominion Energy's investor day presentation, Mar 1, 2024

1. Slide 1: Business review investor meeting

   Business review investor meeting March 1, 2024

2. Slide 2: Important note for investors

   Important note for investors This presentation contains certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 regarding Dominion Energy. The statements relate to, among other things, expectations, estimates and projections concerning the busine

3. Slide 3: Important note for investors, cont.

   Important note for investors, cont. This presentation includes certain financial measures that have not been prepared in accordance with GAAP. A listing of such non-GAAP measures with their GAAP equivalents are as follows: • Operating earnings per share (non-GAAP) which has a GAAP equivalent of repo

4. Slide 4: Bob Blue

   Bob Blue Chair, President and Chief Executive Officer 4

5. Slide 5: The business review has delivered a comprehensively positive result

   The business review has delivered a comprehensively positive result Repositioned to provide compelling long-term value for shareholders, customers & employees  Narrowed strategic  Stable state  Reduced offshore wind risk —   Robust and focus — regulatory sustainable credit On time & on budget D

6. Slide 6: A message from the Dominion Energy Board of Directors

   A message from the Dominion Energy Board of Directors Robert H. Spilman, Jr. Susan N. Story Joseph M. Rigby Lead Independent Director Chair—Sustainability and Chair—Audit Committee Chair Elect—Compensation, Corporate Responsibility Talent and Development Committee Committee Lead Independent Director

7. Slide 7: The business review has delivered a comprehensively positive result

   The business review has delivered a comprehensively positive result Repositioned to provide compelling long-term value for shareholders, customers & employees Strategic and financial profile Strategic and financial metrics  Simple strategy: Operate exceptional utilities in the Southeast U.S. ― Reli

8. Slide 8: Premier state-regulated utility profile

   Premier state-regulated utility profile Business mix Average annual earnings contribution: 2025—2029¹ Other²: 5% Millstone PPA/hedged/capacity: 5% 95% DESC: 15% state-regulated utility operations “Pure play” utility profile with + Millstone PPA/hedged/capacity ~90% of earnings from regulated utility

9. Slide 9: Low operating risk

   Low operating risk Diverse, constructive regulatory jurisdictions with strong support for timely recovery Percentage of total investment base¹ Regulatory diversity Increasingly clean Reduced regulatory lag Contracted Energy: 6% Coal 6% DESC: 19% Other Other Electric VA biennial³: 30% transmission/ ~

10. Slide 10: Dominion Energy Virginia (DEV)

    Dominion Energy Virginia (DEV) Overview Electric service area Key stats Electric utility customers 2.8M Owned generation (MW) 18,802 Distribution miles 60,300 Transmission miles 6,700 5-yr capital plan ($B)¹ $35.5 2024E utility rate base ($B) $41.2 5-yr utility rate base CAGR² 9.0% Weighted average

11. Slide 11: Robust demand growth

    Robust demand growth Driven by economic growth, electrification, data center expansion PJM DOM Zone summer peak DEV weather normal electric sales PJM DOM Zone summer peak (GW) annual load growth (10-year avg.) by revenue class 2023A 2033E Data center development in Virginia  Access to affordable an

12. Slide 12: Dominion Energy South Carolina (DESC)

    Dominion Energy South Carolina (DESC) Overview Electric and gas service areas Key stats Electric utility customers 0.8M Gas distribution utility customers 0.4M Owned generation (MW) 5,594 Electric distribution miles 19,000 Electric transmission miles 3,900 Gas distribution pipeline miles 18,800 5-yr

13. Slide 13: Contracted Energy (CE)

    Contracted Energy (CE) Overview % of CE Asset earnings Commentary CE earnings profile: Risk reduction  Significantly de-risked—% Millstone total revenue de-risked:¹ 2024E 2025E 2026E 2027E Millstone ~60—70% 100% 98% 82% 63%  ~9M MWh (~55% of annual output) fixed price contracted  Residual output

14. Slide 14: Diversified and robust rate base growth

    Diversified and robust rate base growth Consolidated 5-year capital plan By function Total investment base³ ($B) 19% Other¹ 31% Electric transmission 14% $82 3% Storage DESC $77 5% $73 Nuclear relicensing ~$43B $68 2025E—2029E 82% $63 6% DEV Nuclear² $57 5% 22% Offshore wind Electric 9% distribution

15. Slide 15: Continuous cost control is the way we do business…

    Continuous cost control is the way we do business… O&M performance Best-in-class O&M control Normalized O&M ($B) O&M control initiatives  D’s electric non-fuel O&M per  Dynamic cost cutting program sales ($/MWh) vs peers $2.4 $2.4 $2.4 $2.3 through business process improvements and innovation 200

16. Slide 16: …As is keeping our customer bills low

    …As is keeping our customer bills low Typical residential electric customer bills History of low rates¹ (cents/kWh) Preserving affordability for energy transition LT avg. rate vs. US avg. current rate vs. US avg. DEV 11.71 (12%) 13.36 (17%) 3.3% DESC 12.93 (9%) 14.63 (10%) 16.19 2.2% D/SCANA merger

17. Slide 17: Summary

    Summary  On a path to deliver maximum long-term value for shareholders and other stakeholders  Investing to provide the reliable, affordable, and increasingly clean energy that powers our customers every day  100% focused on execution 17

18. Slide 18: Steven Ridge

    Steven Ridge Executive Vice President and Chief Financial Officer 18

19. Slide 19: Business review

    Business review CFO observations  The Dominion Energy plan is premised on five key tenets:  Strategic simplicity  Consistent long-term financial execution  Balance sheet conservatism  Dividend security  Exceptional customer experience that enables us to advocate for and achieve balanced policy

20. Slide 20: Guidance

    Guidance 2025 operating earnings per share guidance midpoint (non-GAAP)¹ 2025 operating earnings per share guidance midpoint = $3.40  $3.40 includes the impact of illustrative 100 bps reduction in EROA (reduction to operating earnings of ~$0.10) $3.40 ~$0.10 2025E RNG 45Z operating EPS = ~$0.10  P

21. Slide 21: Long-term growth rate

    Guidance Long-term operating earnings per share growth rate 5%—7% growth rate off 2025 operating EPS midpoint excluding RNG 45Z ($3.30) ~6% long-term Long-term growth rate CAGR $3.30 Midpoint (Ex. RNG 45Z)  Bias to midpoint of ~6% over the long-range plan  Within the 5%—7% growth range every year

22. Slide 22: Guidance

    Guidance Common dividend per share¹ $2.67  Committed to dividend at current level  Expect to maintain the current dividend level of $2.67 per share annually until such time as we achieve our targeted payout-ratio (“60s percent range”) 2024 guidance ¹ Dividend declarations are subject to customary

23. Slide 23: Guidance

    Guidance Five-year capital summary Dominion Energy Dominion Energy Contracted Energy Corporate & Other Total³ Virginia South Carolina 2025 – 2029 capital plan ($B) $35.5 $5.9 $1.2 $0.6 $43.2  Economic growth  Economic growth  Maintenance,  Information  Zero-carbon generation  Grid transformati

24. Slide 24: Credit

    Credit Significant quantitative and qualitative improvements to our credit profile 100% of after-tax proceeds will be used to reduce parent-level debt; pending transactions subject to regulatory approvals ($B) Status After-tax proceeds Debt transferred² Total debt reduction Est. closing Cove Point L

25. Slide 25: Credit

    Credit Expect to significantly reduce parent debt ratio (non-GAAP) Parent debt, ~$20.4B Parent debt, ~$10.6B 27% ~$38.8B ~$49.3B 41% 2024E 2023A¹ Adj. total Adj. total debt debt Significant deleveraging expected from Debt allocated to unlevered business review operating assets², ~$2.0B Debt allocate

26. Slide 26: Credit

    Credit Guidance Parent debt ratio FFO to debt Credit ratings  Expect 30% or less parent debt  Expected consolidated average  Parent: Target “mid BBB range” as % of total adjusted debt annual FFO to debt of ~15% unsecured debt ratings annually 2024E—2029E ~15%  DEV: Target “single A range” unsecu

27. Slide 27: Financing guidance

    Financing guidance Illustrative sources and uses Cumulative: 2025—2029 ($B) $15.0 ($11.9) $2.0 $3.5 $45.6 $37.0 Operating (+) common equity (+) hybrid, net (+) other fixed (-) dividends¹ Investing cash flow (Drip & ATM) income, net cash flow² (inc. STD) STD = Short term debt, Hybrid = JSN and prefer

28. Slide 28: Financing guidance

    Financing guidance Common equity capital raising activities Expected annual issuance Dividend reinvestment At-the-market Midpoint of guidance (“DRIP”) (“ATM”) 2024E $200M $400 – $600M $700M 2025E 200M 400 – 600M 700M 2026E 200M 400 – 600M 700M 2027E 200M 400 – 600M 700M 2028E 200M 400 – 600M 700M 20

29. Slide 29: The business review has delivered a comprehensively positive result

    The business review has delivered a comprehensively positive result Repositioned to provide compelling long-term value for shareholders, customers & employees Strategic and financial profile Strategic and financial metrics  Simple strategy: Operate exceptional utilities in the Southeast U.S. ― Reli

30. Slide 30: Appendix

    Appendix W Dominion Energy’

31. Slide 31: Investor relations schedule

    Investor relations schedule¹ Key events Dates Wolfe Research NDR (NYC) March 4—5 BMO Capital Markets NDR (Boston) March 6 Barclays NDR (West Coast) March 7—8 Guggenheim Partners (CVOW site visit) ~Spring Wells Fargo NDR (Midwest) ~Summer J.P. Morgan Energy, Power & Renewables Conference June 17 More

32. Slide 32: Dominion Energy Virginia

    Dominion Energy Virginia Regulated offshore wind: CVOW video update from key suppliers and partners Jochen Eickholt Robert Dreves Søren Schlott Steen Brødbæk CEO, Siemens CEO Rostock Mikkelsen CEO, Semco Maritime Gamesa Renewable Facility, EEW COO, Bladt Industries Energy Luc Vandenbulcke Hakan Ozme

33. Slide 33: Financial guidance supplement

    Financial guidance supplement •1 Consolidated guidance •2 Dominion Energy Virginia •3 Dominion Energy South Carolina •4 Contracted Energy •5 Corporate and Other •6 Fixed income 33

34. Slide 34: Consolidated guidance

    @ Consolidated guidance W Dominion Energy’

35. Slide 35: Guidance

    1 Guidance 2024 and 2025 operating earnings per share (non-GAAP) ~9% CAGR from 2023 to 20253 ~$3.40 ~$3.06 ~$2.85 ~$2.75 ~$0.31 ~$0.85 Adjustments ▲ Net impact from announced asset sales +$0.30 $1.99 ▲ Fuel securitization +$0.01 Adjustments ▲ Historically mild weather +$0.18 ▲ Interest savings from

36. Slide 36: Consolidated guidance

    1 Consolidated guidance Operating earnings per share (non-GAAP) Operating EPS guidance ranges 2024E 2025E Dominion Energy Virginia $2.24—$2.43 $2.49—$2.67 Dominion Energy South Carolina $0.42—$0.46 $0.53—$0.56 Contracted Energy $0.47—$0.48 $0.55—$0.56 Corporate and Other & Elims¹ ($0.52)—($0.50) ($0

37. Slide 37: Consolidated guidance

    1 Consolidated guidance 2024 operating earnings per share Drivers by quarter (YoY) Illustrative quarterly distribution of 2024E EPS ▲ Return to normal weather ▼ Rider roll in to base Q1 ▲ Sales ▼ Interest expense ▲ Regulated investment ▼ DD&A/O&M/other 30—40% ▲ Return to normal weather ▲ Lack of Mil

38. Slide 38: Consolidated guidance

    1 Consolidated guidance 2024 illustrative sources and uses ($B) $0.0 $0.7 ($3.9) ($2.3) $12.4 $12.3 $5.4 Operating (+) Asset sale proceeds¹ (+) common equity (+) hybrid, net (-) other fixed (-) dividends² Investing cash flow (Drip & ATM) income, net cash flow³ (inc. STD) ¹ Pre-tax proceeds. Includes

39. Slide 39: Consolidated guidance

    1 Consolidated guidance Five-year capital summary $B 2025E 2026E 2027E 2028E 2029E Total Dominion Energy Virginia $7.6 $6.9 $7.3 $6.7 $7.0 $35.5 Dominion Energy South Carolina 1.1 1.0 1.2 1.3 1.3 5.9 Contracted Energy 0.3 0.2 0.3 0.2 0.2 1.2 Corporate and Other 0.1 0.1 0.2 0.1 0.1 0.6 Total $9.1 $8.

40. Slide 40: Consolidated guidance

    1 Consolidated guidance Key assumptions Driver 2024E assumption 2025E assumption Long-term assumption Weather 15-year normal 15-year normal 15-year normal Normalized O&M expense ($B) / growth rate $2.4 $2.3 ~1%—2%¹ Consolidated operating earnings effective tax rate² 18%—19% 15%—17% 13%—15%³ 2026E: ~

41. Slide 41: Consolidated guidance

    1 Consolidated guidance Tax credits Cash generation by type ($M)¹ Asset Credit type Segment 2024E 2025E 2026E 2027E 2028E 2029E DEV regulated PTC DEV $25 $75 $140 $225 $275 $300 DEV regulated ITC DEV 10 25 25 5 125 85 RNG PTC CE — 70—100 90—125 90—125 — — RNG ITC CE 80 280 — — — — Solar PTC CE 10 20

42. Slide 42: Consolidated guidance

    1 Consolidated guidance Operating EPS impact for change in key financial plan inputs Driver Change 2024E operating EPS impact 2025E operating EPS impact DEV: Electric load - residential +/- 1% +/- $0.018 +/- $0.018 DEV: Electric load - commercial +/- 1% +/- $0.014 +/- $0.014 DEV: Electric load - ind

43. Slide 43: Consolidated guidance

    1 Consolidated guidance Operating EPS impact for change in key financial plan inputs Driver Change 2024E operating EPS impact 2025E operating EPS impact RNG: LCFS, RIN and biogas prices +/- 10% +/- $0.002 +/- $0.008 Open market Millstone prices +/- 10% +/- $0.000 +/- $0.002 Normalized O&M Expense +/

44. Slide 44: Dominion Energy Virginia

    2 Dominion Energy Virginia 44

45. Slide 45: Dominion Energy Virginia

    2 Dominion Energy Virginia Key assumptions Driver 2024E assumption 2025E assumption Long-term assumption Weather 15-year normal 15-year normal 15-year normal W/N annual retail electric sales growth rate – DEV 4.5%—5.5% 1.0%—2.0%² 3.5%—4.5%¹ Segment normalized O&M expense growth rate Decrease Decreas

46. Slide 46: 2024 PJM DOM Zone forecasts

    2 Dominion Energy Virginia 2024 PJM DOM Zone forecasts DOM Zone peak demand forecasts 34,000 Previous 32,000 Summer Peak Aug. 9, 2022 21,156 MW 30,000 New Winter New Summer 28,000 Peak Peak Megawatts Dec. 24, 2022 Jul. 28, 2023 22,189 MW 21,993 MW 26,000 24,000 22,000 20,000 2022 2023 2024 2025 2026

47. Slide 47: Data center markets

    2 Dominion Energy Virginia Data center markets Top U.S. markets (MW capacity) Top global markets (MW capacity) 3,442 3,442 1,000 908 906 836 734 647 588 587 587 577 572 410 350 448 Northern Virginia data center market is larger than next five US markets combined and larger than next four world marke

48. Slide 48: Benefits for data centers in Virginia

    2 Dominion Energy Virginia Benefits for data centers in Virginia Lower ○●Higher Benefits Description Impact ◕ Northern Virginia has densely packed fiber backbones and access to 4 subsea fiber cables near Fiber backbone Virginia Beach (MAREA, BRUSA, SAEx, Dunant) ◕ Data center electricity costs are

49. Slide 49: Generative A.I. power consumption

    2 Dominion Energy Virginia Generative A.I. power consumption Typical data center Data center supporting A.I. in Data center supporting A.I. in without A.I. demand Training phase Inference phase Description CPU-based servers High-powered GPU-based servers CPU/GPU-based servers Rack power density 6-12

50. Slide 50: Data center contracted capacity vs. demand

    2 Dominion Energy Virginia Data center contracted capacity vs. data center actual/forecast demand (July 2023) 16,000 Existing contracted capacity fulfills projected 14,000 demand growth through 2031... 12,000 Billing demand (MW) 10,000 8,000 6,000 4,000 2,000 - Contracted capacity¹ Data center actua

51. Slide 51: 5-year capital summary

    2 Dominion Energy Virginia 5-year capital summary $B Program 2025E 2026E 2027E 2028E 2029E Total Electric transmission $2.3 $2.5 $2.5 $2.5 $2.5 $12.2 Electric distribution 0.9 0.9 1.0 1.0 1.1 4.9 Solar/storage/OSW 2.5 1.4 1.0 1.0 1.1 6.8 Nuclear/SLR 0.9 0.7 0.7 0.5 0.7 3.6 Grid transformation 0.6 0.

52. Slide 52: Regulatory summary (as of December 31, 2023)

    2 Dominion Energy Virginia Regulatory summary (as of December 31, 2023) Electric Dominion VA base Transmission VA riders Energy North Other Total rider Carolina Rate base ($B) ~13.3¹ ~10.1² ~7.5³ ~1.54 ~$3.15 $35.5 Common equity 52.1%7 52.2%8 52.1%7 52.0%9 N/A 52.1% Allowed ROE 9.70%6 11.40%10 9.70%

53. Slide 53: Rate base

    2 Dominion Energy Virginia Rate base Illustrative rate base ($B) 2024E 2025E 2026E 2027E 2028E 2029E Virginia base¹ $13.8 $14.2 $14.6 $15.3 $15.9 $16.6 Electric transmission rider² 11.8 13.5 15.4 17.3 19.0 20.7 Virginia riders³ 10.5 13.5 15.4 16.8 17.7 18.6 Dominion Energy North Carolina4 1.7 1.9 2.

54. Slide 54: Biennial review summary

    2 Dominion Energy Virginia Biennial review summary Second biennial Third biennial Fourth biennial Initial filing March 2025 March 2027 March 2029 Final order Late 2025 Late 2027 Late 2029 Investment under review “Base” only — Rider investment outside scope Years reviewed 2023—2024 2025—2026 2027—202

55. Slide 55: Ringfenced solar

    2 Dominion Energy Virginia Ringfenced solar Business summary  Included in DEV reporting segment  Represents solar investments not included in DEV’s utility rate base summary  17 projects representing 0.9 GW  Weighted average remaining PPA life: ~16 years Financial summary 2024E 2025E 2026E 2027E

56. Slide 56: Dominion Energy South Carolina

    3 Dominion Energy South Carolina 56

57. Slide 57: Dominion Energy South Carolina

    3 Dominion Energy South Carolina Key assumptions Driver 2024E assumption 2025E assumption Long-term assumption Weather 15-year normal 15-year normal 15-year normal W/N annual retail electric sales growth rate – DESC 1.5%—2.5%² 0%—1% 1%—2%¹ Segment normalized O&M expense growth rate Increase Decrease

58. Slide 58: Regulatory summary (as of December 31, 2023)

    3 Dominion Energy South Carolina Regulatory summary (as of December 31, 2023) Electric Gas Capital Cost Rider (CCR) Total Rate base ($B) $7.4¹ $1.2¹ $1.4¹ $10.0 Common equity 51.62%² 54.78%³ 52.8% 52.2% Allowed ROE 9.5%² 9.49%³ 9.9% 9.6% ¹ Estimated 2023 end of period rate base ² Approved SC PSC Ord

59. Slide 59: Rate base

    3 Dominion Energy South Carolina Rate base Illustrative rate base ($B) 2024E 2025E 2026E 2027E 2028E 2029E Electric $8.1 $8.7 $9.2 $9.7 $10.3 $11.0 Gas 1.2 1.4 1.5 1.7 1.8 1.9 Capital Cost Rider 1.3 1.1 1.0 0.9 0.9 0.8 Total $10.7 $11.3 $11.7 $12.3 $13.0 $13.7 Note: Excludes deferred fuel; figures m

60. Slide 60: 5-year capital summary

    3 Dominion Energy South Carolina 5-year capital summary $B Program 2025E 2026E 2027E 2028E 2029E Total Electric transmission $0.3 $0.2 $0.2 $0.2 $0.2 $1.1 Electric distribution 0.2 0.2 0.3 0.2 0.3 1.3 Gas distribution 0.2 0.2 0.2 0.2 0.2 0.9 Nuclear 0.0 0.0 0.0 0.1 0.0 0.2 Electric generation/other

61. Slide 61: Capital Cost Rider (“CCR”)

    3 Dominion Energy South Carolina Capital Cost Rider (“CCR”) The capital cost rider was approved under terms of the South Carolina PSC merger approval in late 2018  Allows recovery of and return on ~$2.8B of New Nuclear Development costs  Disallowed recovery/permanently impaired the other ~$2B of s

62. Slide 62: Contracted Energy

    © Contracted Energy W 62

63. Slide 63: Contracted Energy

    4 Contracted Energy Overview % of CE Asset earnings Commentary CE earnings profile: Risk reduction  Significantly de-risked—% Millstone total revenue de-risked:¹ 2024E 2025E 2026E 2027E Millstone ~60—70% 100% 98% 82% 63%  ~9M MWh (~55% of annual output) fixed price contracted  Residual output (~4

64. Slide 64: 5-year capital summary

    4 Contracted Energy 5-year capital summary $B Asset 2025E 2026E 2027E 2028E 2029E Total Millstone Nuclear Power Station $0.2 $0.2 $0.3 $0.2 $0.2 $1.0 RNG 0.1 0.0 0.0 0.0 0.0 0.1 Solar 0.0 0.0 0.0 0.0 0.0 0.1 Total $0.3 $0.2 $0.3 $0.2 $0.2 $1.2 Note: Figures may not sum due to rounding 64

65. Slide 65: Millstone

    4 Contracted Energy Millstone Assumptions 2024E 2025E 2026E¹ 2027E 2028E 2029E¹,² Long-term contracted volume (GWh) 8,562 8,688 8,703 8,715 8,806 8,847 Long-term contracted price ($/MWh) $49.99 $49.99 $49.99 $49.99 $49.99 $49.99 Hedged volume (GWh) 7,745 7,133 3,953 1,752 220 — Weighted average hedg

66. Slide 66: Solar

    4 Contracted Energy Solar Business summary  31 projects representing ~1.3 GW  Weighted average remaining PPA life: ~13 years Financial summary 2024E 2025E 2026E 2027E 2028E 2029E Total generation (TWh) 2.3 2.6 2.5 2.5 2.5 2.5 EBITDA ($M) $72 $76 $76 $77 $76 $74 Capital expenditures ($M) $266¹ $4 $

67. Slide 67: RNG

    4 Contracted Energy RNG Business summary  Targeting low-teens, pre-tax unlevered IRRs  Minimal ongoing capex (additional capital investment opportunities exist under commercial agreements but not assumed in plan)  Financial summary below excludes tax credits Financial summary (excludes impact of

68. Slide 68: Charybdis

    4 Contracted Energy Charybdis  Completion status (updated): 82% compared to previous update of 77%  Expected completion date (no change): Late 2024/early 2025  Supportive of CVOW schedule inclusive of any 3rd party charter agreements in 2025 (no change)  Seatrium (no change)  Extensive relevant

69. Slide 69: Corporate and Other

    5 Corporate and Other 69

70. Slide 70: Corporate and Other

    5 Corporate and Other Overview Overview Financial summary  Operating earnings for corporate and other After-tax ($M) 2023A includes items not attributable to Dominion Energy’s primary operating segments, DEV, DESC, Interest expense, net ($564) and Contracted Energy Pension and OPEB 264  Segment in

71. Slide 71: Retirement benefit plans update: Evaluating plan asset rebalancing

    5 Corporate and Other Retirement benefit plans update: Evaluating plan asset rebalancing  Robust plan funding levels: 117% at year-end 2023 Expected return on asset (EROA) assumption  Dominion Energy is evaluating reducing retirement benefit plan risk by rebalancing asset allocation towards lower

72. Slide 72: Parent debt

    5 Corporate and Other Parent debt Non-GAAP measures of adjusted total debt, parent debt and parent debt ratio ($B) 2022A 2023A 2024E Adjusted total debt¹ $45.9 $49.3 $38.8 Less: DEV total debt (17.1) (18.0) (20.4) Less: DESC total debt (4.0) (4.5) (5.7) Less: Gas utility total debt (4.3) (4.5) – Les

73. Slide 73: Fixed income

    @ Fixed income W Dominion Energy’

74. Slide 74: 2024 fixed income financing activities

    6 Fixed income 2024 fixed income financing activities ($B)¹ Issuance range Issued YTD Remaining Dominion Energy Virginia $2.0 – 2.5 $1.0 $1.0 – $1.5 Dominion Energy South Carolina 0.0 0.0 0.0 Contracted Energy 0.0 0.0 0.0 DEI hybrid 0.7—1.5 0.0 0.7—1.5 Consolidated $2.7—$4.0 $1.0 $1.7 —$3.0 ¹ Exclud

75. Slide 75: Interest rate derivative portfolio

    6 Fixed income Interest rate derivative portfolio Estimated FFO impact¹ 2024E 2025E 2026E 2027E 2028E 2029E DEI² $124 $173 $111 ($10) ($25) ($27) VEPCO 103 40 0 0 0 0 Total $227 $213 $111 ($10) ($25) ($27) ¹ As of year-end 2023 ² Significant portion of DEI interest rate hedges have been offset to mi

76. Slide 76: Hybrid overview as of December 31, 2023

    6 Fixed income Hybrid overview as of December 31, 2023 Preferred stock Rating agency Outstanding Series and link to term sheet Issued Maturity Dividend rate¹ equity credit Optional 100% redemption dates ($M) treatment Series B preferred stock 12/13/2019 Perpetual $800 4.65% 50% 12/15/24 or any subse

77. Slide 77: Credit ratings as of February 29, 2024

    6 Fixed income Credit ratings as of February 29, 2024 Dominion Energy, Inc. Moody’s S&P Fitch Corporate/Issuer Baa2 BBB+ BBB+ Senior Unsecured Debt Securities Baa2 BBB BBB+ Junior Subordinated Notes Baa3 BBB BBB Enhanced Junior Subordinated Notes Baa3 BBB- BBB- Preferred Stock Ba1 BBB- BBB- Short-Te

78. Slide 78: Schedule of long-term debt as of December 31, 2023

    6 Fixed income Preliminary and unaudited schedule of long-term debt as of December 31, 2023 ($M) Segment Financing Entity Description Maturity Weighted Avg. Coupon Short-term at 12/31/2023 Long-term at 12/31/2023 DE Virginia VEPCO Unsecured Senior Notes, fixed rates 2024-2053 4.25% $350 $16,585 DE V

79. Slide 79: Schedule of debt maturities

    6 Fixed income Schedule of debt maturities as of December 31, 2023 ($M) Financing Segment Due Date Entity DE Virginia DE SC Con Energy Corp & Other Total 2024 364-Day Term Loan (variable) 01/12/24¹ DEI - - - 2,500 2,500 3.45% 2014 Series A Senior Notes 02/15/24 VEPCO 350 - - - 350 3.496% 2017 Series

80. Slide 80: Schedule of debt maturities

    6 Fixed income Schedule of debt maturities as of December 31, 2023 ($M) Financing Segment Due Date Entity DE Virginia DE SC Con Energy Corp & Other Total 2027 3.60% 2020 Series B Senior Notes 03/15/27 DEI - - - 350 350 3.50% 2017 Series A Senior Notes 03/15/27 VEPCO 750 - - - 750 3.75% 2022 Series B

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