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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 Q2 2026 earnings call July 31, 2026
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 Important note for investors 2 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 business and operations of Dominion Energy. We have used the words “path”, "anticipa te", "believe", “forecast”, "could", "estimate", "expect", "intend", "may", "plan", “outlook”, "predict", "project", “should”, “strategy”, “continue”, “target”, "will“, “potential” and similar terms and phrases to identify forward -looking statements in this presentation. Such forward -looking statements, including operating earnings per share information and guidance, projected dividends, projected debt and equity issuances, projected cash flow, capital expenditures , operating expenses and debt information, shareholder return, and long -term growth or value, are subject to various risks and uncertainties. As outlined in our SEC filings, factors that could cause actual results to differ include, b ut are not limited to: risks and uncertainties that may impact the ability of the parties to complete the proposed merger with NextEra Energy at all, or within the terms and time frames initially anticipated, including the ability to obtain the requisite approvals and terms and conditions of such approvals and other events or changes in circumstances that could give rise to the termination of the merger agreement; the impact of the proposed merger with NextEra Energy and any related uncertainties and disruptions on Dominion Energy’s business; unusual weather conditions and their effect on energy sales to customers and energy commodity prices; extreme weather events and other natura l disasters; extraordinary external events, such as the pandemic health event resulting from COVID -19; federal, state and local legislative and regulatory developments; changes in or interpretations of federal and state tax laws and regulations; changes to regulated rates collected by Dominion Energy; changes in rules for RTOs and ISOs in which Dominion Energy joins and/or participates; risks associated with entities in which Dominion Energy shares ownership with third parties, such as a 50% noncontrolling interest in the Coastal Virginia Offshore Wind (CVOW) Commercial Project, including risks that result from lack of sole decision making authority, disputes that may arise between Dominion Energy and third-party participants and difficulties in exiting these arrangements; timing and receipt of regulatory approvals necessary for planned construction or expansion projects and compliance with conditions associated wi th such regulatory approvals; the inability to complete planned construction projects within time frames initially anticipated; risks and uncertainties that may impact the ability to construct the CVOW Commercial Project within th e currently proposed timeline, or at all, and consistent with current cost estimates along with the ability to recover such costs from customers; risks and uncertainties associated with the timely receipt of future capital contributions , including optional capital contributions, if any, from the noncontrolling financing partner associated with the construction of the CVOW Commercial Project; changes to federal, state, and local environmental laws and regulations, includi ng those related to climate change; cost of environmental strategy and compliance, including cost related to climate change; changes in implementation and enforcement practices of regulators relating to environmental standards and lit igation exposure for remedial activities; unplanned outages at facilities in which Dominion Energy has an ownership interest; risks associated with the operation of nuclear facilities; changes in operating, maintenance or construct ion costs; the availability of nuclear fuel, natural gas, purchased power or other materials utilized by Dominion Energy to provide electric generation, transmission and distribution and/or gas distribution services; additional competition in Dominion Energy’s industries; changes in technology; changes in demand for Dominion Energy’s services; risks and uncertainties associated with increased energy demand or significant accelerated growth in demand due to new data c enters, including the concentration of data centers primarily in Loudoun County, Va., and the ability to obtain regulatory approvals, environmental and other permits to construct new facilities in a timely manner; the technologica l and economic feasibility of large -scale battery storage, carbon capture and storage, small modular reactors, hydrogen and/or other clean energy technologies; receipt of approvals for, and timing of, closing dates for acquisitions and divestitures; impacts of acquisitions, divestitures, transfers of assets by Dominion Energy to joint ventures, or retirements of assets based on asset portfolio reviews; adverse outcomes in litigation matters or regulatory proceedings; cou nterparty credit and performance risk; fluctuations in energy -related commodity prices; fluctuations in interest rates; changes in rating agency requirements or credit ratings and their effect on availability and cost of capital; and capital market conditions, including the availability of credit and the ability to obtain financing on reasonable terms; and political and economic conditions, including tariffs, inflation and deflation. Other risk factors are detailed fro m time to time in Dominion Energy’s quarterly reports on Form 10 -Q and most recent annual report on Form 10 -K filed with the U.S. Securities and Exchange Commission. The information in this presentation was prepared as of July 31, 2026. Dominion Energy undertakes no obligation to update any forward-looking information statement to reflect developments after the statement is made. Projections or forecasts shown in this document are based on the assumptions listed in this document and are subject to change at any tim e. This presentation shall not constitute an offer to sell or the solicitation of an offer to buy securities. Any offers to sell or solicitations of offers to buy securities will be made in accordance with the requirements of the Securities Act of 1933, as amended. This presentation has been prepared primarily for security analysts and investors in the hope that it will serve as a convenient and useful reference document. The format of this document may change in the future as we continue to try to meet the needs of security analysts and investors. This document is not intended for use in connection with any sale, offer to sell or solicitation of any offer to buy securities. This presentation includes certain financial measures that have not been prepared in accordance with U.S. generally accepted accounting principles (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 reported net income per share. Reconciliations of such non -GAAP measures to their GAAP equivalents have been made available to the extent possible in the Secon d Quarter 2026 Earnings Release Kit on our investor relations website. With regards to projections, estimates or guidance included in this presentation related to such non -GAAP measures, reconciliations of such projected or esti mated non-GAAP measures to applicable GAAP measures are not provided, because the company cannot, without unreasonable effort, estimate or predict with certainty various components of net income. Please continue to regularly check Dominion Energy’s website at http://investors.dominionenergy.com/.
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 3 Metric Amount Commentary Q2 2026: Actual ($ per share)¹ $0.79 Reflects $0.03 of RNG 45Z income; normal weather 2026 guidance midpoint ($ per share) $3.57² No change 2026 guidance ($ per share) $3.45—$3.69² No change Long-term operating EPS growth rate 5%—7% growth rate off 2025 operating EPS midpoint ($3.30) through 2030— bias to upper half 2028 through 2030 No change – Continue to monitor catalysts that could enhance and/or extend long-term growth rate RNG 45Z operating EPS guidance Expected to generate operating EPS in 2026—2029 (~$0.07/year)³ No change 2026 dividend ($ per share)4 $2.67 No change 2026—2030 capital investment plan ~$65B No change Dominion Energy Financial results and guidance Operating earnings per share (non-GAAP) and long-term financial guidance Reaffirmed all earnings, credit and dividend guidance from Q4 2025 update ¹ See Second Quarter 2026 Earnings Release Kit for supporting information and a reconciliation to GAAP 2 Includes ~7 cents/share of RNG 45Z income 3 Excluded from long-term EPS growth rate due to current legislative expiration after 2029 4 Dividend declarations are subject to customary Board approval
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 4 ¹ Excludes short-term debt activity as well as potential opportunistic financings including liability management as well as cert ain tax-free re-marketings ² Excludes dividend reinvestment issuance of ~$150M Issuance range Issued YTD (updated) Remaining Dominion Energy Virginia $3.5—$4.5 $2.2 $1.3—$2.3 Dominion Energy South Carolina 0.0—0.5 — 0.0—0.5 DEI hybrid 1.5—2.5 1.5 0.0—1.0 DEI other fixed income 1.0—2.0 0.8 0.2—1.2 Consolidated $6.0—$9.5 $4.5 $1.5—$5.0 2026 expected fixed income activities¹ ($B) Guidance Issued YTD Remaining 2026 At-the-market (ATM) $1.6—$1.8 $1.7 — Common equity activities² ($B) Dominion Energy Capital raising activities (updated) Will look to opportunistically de-risk financings during remainder of 2026
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 Dominion Energy Virginia Data center contracted capacity (updated) 5 July 2023 December 2025 March 2026 July 2026 Substation Engineering Letter of Authorization (SELOA) ▪ Detailed engineering plan ▪ Costs reimbursed to Dominion Energy ~48.5 GW ~51.0 GW Construction Letter of Authorization (CLOA) ▪ Authorizes construction ▪ Customer must reimburse Dominion Energy for all spent costs should they walk away Electric Service Agreement (ESA) ▪ Defines how the customer will take service and structure to recover costs ▪ Includes revenue requirement whether customer takes service or not ESA: 10.2 GW CLOA: 11.0 GW SELOA: 27.4 GW ESA: 10.4 GW CLOA: 11.1 GW SELOA: 29.5 GW vs. December 2025 data center contracted capacity ~5.3GW/11% ~53.8 GW ESA: 12.0 GW CLOA: 9.4 GW SELOA: 32.4 GW ~16.5 GW ESA: 5.8 GW CLOA: 2.0 GW SELOA: 8.7 GW
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 0.94 0.45 0.42 0.26 0.36 1.90 2006-2022 average 2023 2024 2025 2026 YTD² Industry average³ 81% better than average OSHA recordable incident rate¹ 6 Dominion Energy Employee safety ¹ Number of recordables per 100 employees each work year; data is pro forma for SCANA ² 2026 YTD through June ³ Average per B ureau of Labor Statistics 2024 industry data for electric power generation, transmission, and distribution (NAICS code 2211)
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 Approval timeline 7 NextEra Energy-Dominion Energy combination Subject to approvals, merger expected to close in second half of 2027 ¹ Federal Energy Regulatory Commission (FERC); Nuclear Regulatory Commission (NRC); Hart -Scott-Rodino Anti-Trust Act (HSR); North Carolina Utilities Commission (NCUC); Public Service Commission of South Carolina (PSCSC); Virginia State Corporation Commission (VSCC) Federal regulatory applications / regulatory approval process¹: FERC, NRC, HSR Transaction Announcement File Form S-4/Joint Proxy Statement NEE and D Shareholder Meetings Receive required approvals Close merger Q2 2026 Q3 2026 Q4 2026 Q1 2027 Q2 2027 Q3 2027 Q4 2027 State regulatory applications / regulatory approval process¹: NCUC, PSCSC, VSCC
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 Coastal Virginia Offshore Wind (CVOW) Significant progress reduces project risk: ~81% complete (updated) 8 ¹ As of July 31 Execution progress, operational achievements, and proven performance continue to reinforce confidence in successful project completion ✓ 100% of nacelles, ~99% of towers and 85% of blades have now been fabricated ▪ Towers to be completed in the coming days followed by final blades in OctoberFabrication Installation Proof of concept ✓ Achieved first delivery of electricity in March 2026 ✓ Monopiles: All 176 monopiles installed ✓ Transition pieces: All 176 transition pieces installed ▪ Wind turbine generators (WTG)¹: 31 WTG completed with installation of the 32nd currently in progress ▪ Offshore substations (OSS): Commissioning of the first and second OSS is complete. Third and final OSS expected by year end 2026 which will signify that ~50% of project investment, adjusted for network upgrade costs, has achieved in-service status ✓ Successfully completed every major fabrication, construction, commissioning, and operation evolution multiple times ✓ CVOW’s risk profile is fundamentally different from a traditional power plant: Each of its 176 turbines effectively becomes operational upon completion, demonstrating technical performance and delivering energy to the grid well before final turbine installation, making project de-risking heavily front-end loaded
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 Coastal Virginia Offshore Wind (CVOW) Tracking turbine installation progress 9 Installation status as of July 31, 2026 Turbines installed: 31 completed with installation of 32nd in progress Base installation (no change): ~2 days per turbine last 26 turbines (Excludes loadout and transit, weather, maintenance and other) Turbines remaining: 144 Days until year end 2027: 519 Key target (updated) Final turbine (176): Year end 2027 (Includes loadout and transit, weather and maintenance contingency) Updated projections for turbine installations primarily reflect additional weather and vessel maintenance contingency, loadout time, and certain extended jacking operations No time of day or year restrictions for turbine installation
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 10 ¹ Additional tariff costs associated with revisions to prior steel and aluminum guidance ² Primarily reflects additional cabl e protection, fuel, mitigation and onshore construction costs ³ Accounts for incremental two quarters to complete turbine installation Current capital budget: $11.65B including contingency ($M) Coastal Virginia Offshore Wind (CVOW) Project costs (updated) $123 $228 ($502) $234 $123 $288 $123 $11.4B $11.4B $11.65B Q1'26 budget (+) tariffs¹ (-) PJM network upgrades (+) miscellaneous² Net budget (+) schedule adjustment³ Q2'26 budget ~2.2% ~(0.4%) Unused contingency
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 11 Costs ▪ Current capital budget: $11.65B including contingency (updated) ▪ Project-to-date investment (as of 6/30/2026): ~$9.8B ▪ Remaining project costs: ~$1.9B ▪ % to be funded by Stonepeak via non-controlling equity financing: 48%¹ ▪ Remaining amount to be funded by Dominion Energy: ~$1.0B ▪ Current unused contingency (no change): ▪ $123M (~7% of remaining project costs) ▪ Current unfixed costs (updated): ▪ Changes to tariffs, certain project oversight costs and fuel for transport/installation ¹ Assumes Stonepeak funds capital at 33% level above $11.3B ² In 2027 dollars ▪ Represents <2% of total 5-year capital budget of $65B ▪ D portion of CVOW rate base ~7% of 2026E total investment base Coastal Virginia Offshore Wind (CVOW) Selected updates (updated) LCOE ▪ LCOE (updated): $83/MWh2 compared to initial filing submission of $80 to $90/MWh² and $84/MWh² prior update ▪ Legislative prudency cap (no change): $125/MWh (in 2018 dollars); $149/MWh (in 2027 dollars) Regulatory ▪ July: Final order received for 2025 rider filing, approving annual revenue of $670M (updated, 100% of request) ▪ July: Submit quarterly status report to SCC (on track) Next steps ▪ Complete scour protection and interarray cable installation ▪ Complete installation of wind turbine generators ▪ Complete other transmission-related activities
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 12 Dominion Energy Selected business updates DESC Millstone ✓ Received unanimous approval of electric rate case settlement from SC Public Service Commission ▪ New rates effective at beginning of July ▪ Fourth consecutive South Carolina base rate case resolved through settlement ✓ Submitted bid in CT Department of Energy and Environmental Protection’s zero carbon RFP ▪ CT intends to coordinate bid evaluation in conjunction with other New England states ▪ Expect solicitation decisions near term ▪ Existing PPA actual/expected customer savings: ▪ Over $200M in 2025; ▪ Over $300M in 2026, including $190M year-to-date; and ▪ Over $900M over the ten-year life, based on current forward curves
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 13 ✓ Ongoing focus on three top priorities ✓ Consistently achieving our financial commitments ✓ Continued achievement of major construction milestones for the Coastal Virginia Offshore Wind project ✓ Achieving constructive regulatory outcomes that demonstrate our ability to work cooperatively with regulators and stakeholders to deliver results that benefit both customers and shareholders ✓ Continue to see opportunities for investment in support of our customers ✓ 100% focused on execution Dominion Energy Summary
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 Appendix 14
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 15 Q3 drivers (YoY) Q4 drivers (YoY) Consolidated guidance 2026 operating earnings per share (excluding RNG 45Z) ▲ Regulated investment ▲ Electric rate cases ▲ Sales ▲ Charybdis ▲ Return to normal weather ▼ Financing costs ▼ Capacity expense ▼ Nuclear PTC ▼ DD&A ▼ O&M ▼ RNG ▼ Share dilution ▼ Tax ▲ Regulated investment ▲ Electric rate cases ▲ Sales ▲ Charybdis ▼ Return to normal weather ▼ Financing costs ▼ Capacity expense ▼ Nuclear PTC ▼ Millstone planned outage ▼ DD&A ▼ O&M ▼ RNG ▼ Share dilution ▼ Tax
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 2.1% 4.5% 4.1% 2024 2025 LTM Q2 '26 Regulated electric sales growth DEV and DESC combined 16 ¹ LTM refers to the timeframe of the immediately preceding 12 months as noted ² DEV and DESC combined ³ 2026 YTD through June 0.3% 8.5% 1.5% (0.6%) 4.1% Residential Commercial Industrial Govt/Other Total LTM¹ Q2 ’26 YoY weather normal sales growth² Annual & LTM¹ weather normal sales growth² 0.9% 2.0% DEV DESC Average YTD YoY electric customer growth³ ✓ Robust commercial load growth driven by Data Centers ✓ Attractive customer growth across our Virginia and South Carolina service areas ✓ Industrial load accounts for <10% of regulated sales Regulated electric sales trends % of regulated sales 32% 48% 9% 11%
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 DE Virginia 2.8M 68% DE South Carolina 1.3M 32% Three months ended June 30 ‘24-’26 CAGR Average customers Q2 2026 (M) DE Virginia 0.9% 2.8 DE South Carolina 2.0% 1.3 Electric 1.5% 0.8 Gas 2.8% 0.5 Total utility customers 1.2% 4.1 4.1M State utility customers Customers State-regulated utilities 17 Segment summary Q2 2026 State summary Note: Customer growth calculation methodology reflects average customers in the quarter; figures may not sum due to rounding
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 Weather Degree days 18 Note: Figures may not sum due to rounding Quarter ended 6/30 Six months ended 6/30 2026 2025 2026 2025 Actual 238 176 2,269 2,118 Normal 255 248 2,165 2,143 Actual 594 612 612 632 Normal 564 570 570 575 Actual 10 10 821 853 Normal 24 24 747 767 Actual 253 269 256 269 Normal 248 251 248 252 Actual 10 10 821 853 Normal 24 24 747 767 Electric Dominion Energy South Carolina Gas Heating Cooling Dominion Energy Virginia Dominion Energy South Carolina Heating Cooling Heating
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 $45 $0 — — $45 13 2 — — 15 $58 $2 — — $60 $32 ($3) — — $29 (1) (4) — — (5) $31 ($7) — — $24 Dominion Energy Virginia2 Dominion Energy South Carolina3 ¹ The effects on earnings from differences in weather compared to normal and compared to prior periods are measured using bas e rate revenue. This schedule does not reflect the O&M expenditures for restoring service associated with outages caused by major storms 2 Dominion Energy Virginia electric utility operations 3 Dominion Energy South Carolina electric utility operations Note: Figures may not sum due to rounding Total Q1 Versus normal¹Versus prior year¹ Q2 Q3 Q4 2026 YTD Q1 Q2 Q3 Q4 2026 YTD 19 Dominion Energy Virginia2 Dominion Energy South Carolina3 Total Weather After-tax impacts ($M)
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 20 Fixed income Credit ratings as of June 30, 2026 (updated) 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- Preferred Stock Ba1 BBB- BBB- Short-Term/Commercial Paper P-2 A-2 F2 Outlook Positive Positive Positive VEPCO Moody’s S&P Fitch Corporate/Issuer A3 BBB+ A- Senior Unsecured Debt Securities A3 BBB+ A. Short-Term/Commercial Paper P-2 A-2 F2 Outlook Stable Positive Stable DESC Moody’s S&P Fitch Corporate/Issuer Baa1 BBB+ A- First Mortgage Bonds A2 A A+ Short-Term/Commercial Paper P-2 A-2 F2 Outlook Stable Stable Stable
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 Segment Financing Entity Description Maturity Weighted Avg. Coupon Current portion Long-term DE Virginia VEPCO Unsecured Senior Notes, fixed rates 2026-2056 4.64% $1,750 $21,035 DE Virginia VEPCO Tax-Exempt Financings, fixed rates 2032-2041 3.52% - 625 DE Virginia VPFS Senior Secured Deferred Fuel Cost Bonds, fixed rates 2029-2033 4.90% 176 794 DE SC DESC First Mortgage Bonds, fixed rates 2028-2065 5.24% - 4,584 DE SC DESC Tax-Exempt Financing, variable rate 2038 2.70% - 35 DE SC DESC Tax-Exempt Financings, fixed rates 2028-2033 3.90% - 54 DE SC DESC Other Long-term Debt, fixed rates 2027-2069 3.54% - 1 DE SC GENCO Tax-Exempt Financing, variable rate 2038 2.70% - 33 Corp & Other DEI 364-Day Term Loan, variable rate¹ 2027 4.48% 1,250 - Corp & Other DEI Sustainability Credit Facility, variable rate² 2026 4.63% 200 - Corp & Other DEI Unsecured Senior Notes, fixed rates³ 2026-2052 4.56% 756 12,031 Corp & Other DEI Unsecured Junior Subordinated Notes: Corp & Other DEI Payable to Affiliated Trust, fixed rate 2031 8.40% - 10 Corp & Other DEI Junior Subordinated Notes, fixed rates 2054-2056 6.42% - 7,525 Total Principal Amount $4,132 $46,727 Unamortized Discount, Premium and Debt Issuance Costs, net (3) (439) Finance Leases and Other Long-Term Debt 114 431 Total Long-Term Debt $4,243 $46,719 21 ¹ Prepaid $300M on July 29, $950M scheduled to mature in 2027 2 Prepaid on July 15, facility scheduled to mature in 2029 3 Includes debt previously issued by CNG Fixed income Preliminary and unaudited schedule of long-term debt as of June 30, 2026 ($M) Represents deferred fuel securitization bonds that are considered “off credit” by the credit rating agencies. The securitization bondholders have recourse solely with respect to the deferred fuel cost property owned by VPFS and no recourse to any other assets of Dominion Energy or Virgi nia Power.
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 22 Fixed income Schedule of debt maturities as of June 30, 2026 ($M) ¹ Prepaid on July 15, facility scheduled to mature in 2029 2 Prepaid $300M on July 29, $950M scheduled to mature in 2027 Financing Due Date Entity DE Virginia DE SC Con Energy Corp & Other Total 2026 Sustainability Credit Facility (variable)¹ 07/15/26 DEI - - - 200 200 364-Day Term Loan (variable)² 07/29/26 DEI - - - 300 300 2.85% 2016 Series D Senior Notes 08/15/26 DEI - - - 400 400 6.875% Debentures (former CNG subsidiary) 10/15/26 DEI - - - 6 6 5.088% Senior Secured Deferred Fuel Cost Bonds 11/01/26 VPFS 87 - - - 87 2.95% 2016 Series B Senior Notes 11/15/26 VEPCO 400 - - - 400 2026 Total 487 - - 906 1,393 2027 364-Day Term Loan (variable)² 02/12/27 DEI - - - 950 950 3.60% 2020 Series B Senior Notes 03/15/27 DEI - - - 350 350 3.50% 2017 Series A Senior Notes 03/15/27 VEPCO 750 - - - 750 5.088% Senior Secured Deferred Fuel Cost Bonds 05/01/27 VPFS 40 - - - 40 3.75% 2022 Series B Senior Notes 05/15/27 VEPCO 600 - - - 600 6.80% Debentures (former CNG subsidiary) 12/15/27 DEI - - - 83 83 4.877% Senior Secured Deferred Fuel Cost Bonds multiple VPFS 140 - - - 140 2027 Total 1,530 - - 1,383 2,913 Segment
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Periwinkle 100.114.203 Brown 171.131.65 Green 95.163.100 Yellow 214.188.56 Purple 149.121.161 Orange 213.139.70 Teal 91.165.163 Red 153.0.0 Section Title 127.127.127 Level C 115.151.188 Level G 235.242.245 Level B 84.130.171 Level D 147.177.204 Level E 195.211.223 Take Away 215.223.230 D footer 0.67.118 Light Grey 217.217.217 D Blue 0.114.206 Chart labels 89.89.89 23 ¹ Excludes finance leases and other long -term debt Fixed income Schedule of debt maturities as of June 30, 2026 ($M) Financing Due Date Entity DE Virginia DE SC Con Energy Corp & Other Total 2028 4.00% 2013 Series SC JEDA Industrial Revenue Bonds 02/01/28 DESC - 39 - - 39 3.80% 2018 Series A Senior Notes 04/01/28 VEPCO 700 - - - 700 4.60% 2025 Series C Senior Notes 05/15/28 DEI - - - 1,000 1,000 4.25% 2018 Series B Senior Notes 06/01/28 DEI - - - 495 495 4.25% Series First Mortgage Bonds 08/15/28 DESC - 53 - - 53 4.877% Senior Secured Deferred Fuel Cost Bonds multiple VPFS 190 - - - 190 2028 Total 890 92 - 1,495 2,477 2029 2.875% 2019 Series A Senior Notes 07/15/29 VEPCO 500 - - - 500 4.877% Senior Secured Deferred Fuel Cost Bonds multiple VPFS 198 - - - 198 2029 Total 698 - - - 698 2030 3.375% 2020 Series C Senior Notes 04/01/30 DEI - - - 1,500 1,500 5.00% 2025 Series A Senior Notes 06/15/30 DEI - - - 800 800 4.877% Senior Secured Deferred Fuel Cost Bonds multiple VPFS 208 - - - 208 2030 Total 208 - - 2,300 2,508 Total¹ 3,813$ 92$ -$ 6,084$ 9,989$ Segment