Exhibit 21

Dominion Energy, Inc.

Subsidiaries of the Registrant

At December 31, 2025

Name

Jurisdiction of Incorporation

Name Under Which Business is Conducted

96WI 8ME LLC

Delaware

96WI 8ME LLC

Align RNG Arizona, LLC

Delaware

Align RNG Arizona, LLC

Align RNG Arizona-Snowflake, LLC

Delaware

Align RNG Arizona-Snowflake, LLC

Align RNG California, LLC

Delaware

Align RNG California, LLC

Align RNG California-Corcoran, LLC

Delaware

Align RNG California-Corcoran, LLC

Align RNG Grady Road, LLC

Delaware

Align RNG Grady Road, LLC

Align RNG Magnolia, LLC

Delaware

Align RNG Magnolia, LLC

Align RNG North Carolina, LLC

Delaware

Align RNG North Carolina, LLC
Align Renewable Natural Gas

Align RNG North Carolina-Bowdens, LLC

Delaware

Align RNG North Carolina-Bowdens, LLC

Align RNG Utah, LLC

Delaware

Align RNG Utah, LLC
Align Renewable Natural Gas

Align RNG Utah-Milford, LLC

Delaware

Align RNG Utah-Milford, LLC

Align RNG Utah-Minersville, LLC

Delaware

Align RNG Utah-Minersville, LLC

Align RNG Virginia, LLC

Delaware

Align RNG Virginia, LLC
Align Renewable Natural Gas

Align RNG Virginia-Waverly, LLC

Delaware

Align RNG Virginia-Waverly, LLC

Align RNG, LLC

Delaware

Align RNG, LLC

Atlanta Farms Solar Project, LLC

Delaware

Atlanta Farms Solar Project, LLC

Atlantic Coast Pipeline, LLC

Delaware

Atlantic Coast Pipeline, LLC

Bellflower Holdings, LLC

North Carolina

Bellflower Holdings, LLC

Blackville Solar Farm, LLC

South Carolina

Blackville Solar Farm, LLC

Blue Ocean Energy Marine, LLC

Virginia

Blue Ocean Energy Marine, LLC

BOE Holdings, Inc.

Virginia

BOE Holdings, Inc.

BrightSuite Home, LLC

Virginia

BrightSuite Home, LLC

Buckeye Plains Solar Project, LLC

Delaware

Buckeye Plains Solar Project, LLC

Buckingham Solar I LLC

Delaware

Buckingham Solar I LLC

CEA Americus, LLC

Delaware

CEA Americus, LLC

CEA Clovis, LLC

Delaware

CEA Clovis, LLC

CEA CO-Fort Morgan, LLC

Delaware

CEA CO-Fort Morgan, LLC

CEA Dairy RNG Arizona, LLC

Delaware

CEA Dairy RNG Arizona, LLC

CEA Dairy RNG Colorado 2024, LLC

Delaware

CEA Dairy RNG Colorado 2024, LLC

CEA Dairy RNG Colorado 2025, LLC

Delaware

CEA Dairy RNG Colorado 2025, LLC

CEA Dairy RNG Colorado, LLC

Delaware

CEA Dairy RNG Colorado, LLC

CEA Dairy RNG Georgia 2025, LLC

Delaware

CEA Dairy RNG Georgia 2025, LLC

CEA Dairy RNG Georgia, LLC

Delaware

CEA Dairy RNG Georgia, LLC

CEA Dairy RNG Idaho 2025, LLC

Delaware

CEA Dairy RNG Idaho 2025, LLC

CEA Dairy RNG Idaho, LLC

Delaware

CEA Dairy RNG Idaho, LLC

CEA Dairy RNG Kansas, LLC

Delaware

CEA Dairy RNG Kansas, LLC

CEA Dairy RNG Nevada, LLC

Delaware

CEA Dairy RNG Nevada, LLC

CEA Dairy RNG New Mexico, LLC

Delaware

CEA Dairy RNG New Mexico, LLC

CEA Dairy RNG Texas, LLC

Delaware

CEA Dairy RNG Texas, LLC

CEA Greely, LLC

Delaware

CEA Greely, LLC

CEA Mason, LLC

Delaware

CEA Mason, LLC

CEA TX-Dimmitt, LLC

Delaware

CEA TX-Dimmitt, LLC

Chicory Holdings, LLC

North Carolina

Chicory Holdings, LLC

Clean Energy 2023 Holdings, LLC

Delaware

Clean Energy 2023 Holdings, LLC

Clean Energy 2024 Holdings, LLC

Delaware

Clean Energy 2024 Holdings, LLC

Clean Energy 2025 Holdings, LLC

Delaware

Clean Energy 2025 Holdings, LLC

Clean Energy Asset USA I, Inc.

Delaware

Clean Energy Asset USA I, Inc.

Clean Energy Asset USA II, Inc.

Delaware

Clean Energy Asset USA II, Inc.

Clean Energy Asset USA LLC

Delaware

Clean Energy Asset USA LLC

Clearsky Power & Technology Fund I, LLC

Delaware

Clearsky Power & Technology Fund I, LLC

Clipperton Holdings LLC

North Carolina

Clipperton Holdings LLC

CNG Coal Company

Delaware

CNG Coal Company

CNG Power Services Corporation

Delaware

CNG Power Services Corporation

Correctional Solar LLC

Delaware

Correctional Solar LLC

Dairy RNG Holdings, LLC

Delaware

Dairy RNG Holdings, LLC

DE 700 Canal Place, LLC

Virginia

DE 700 Canal Place, LLC

DE Arlington Solar, LLC

Virginia

DE Arlington Solar, LLC

DE Chesterfield Solar, LLC

Virginia

DE Chesterfield Solar, LLC

DE EPC, LLC

Virginia

DE EPC, LLC

DE Fairfax Solar, LLC

Virginia

DE Fairfax Solar, LLC

DE Fluvanna Solar, LLC

Virginia

DE Fluvanna Solar, LLC

DE Hanover Solar, LLC

Virginia

DE Hanover Solar, LLC

DE Henrico Solar, LLC

Virginia

DE Henrico Solar, LLC

DE King William Solar, LLC

Virginia

DE King William Solar, LLC

DE Louisa Solar, LLC

Virginia

DE Louisa Solar, LLC

DE Newport News Solar, LLC

Virginia

DE Newport News Solar, LLC

DE Powhatan Solar, LLC

Virginia

DE Powhatan Solar, LLC

DE Solutions Home, Inc.

Virginia

DE Solutions Home, Inc.

DE Solutions Solar CT, Inc.

Virginia

DE Solutions Solar CT, Inc.

DE Solutions Solar Development, LLC

Virginia

DE Solutions Solar Development, LLC

DE Solutions Solar SC, Inc.

Virginia

DE Solutions Solar SC, Inc.

DE Solutions Solar VA, Inc.

Virginia

DE Solutions Solar VA, Inc.

DE Virginia Beach Solar, LLC

Virginia

DE Virginia Beach Solar, LLC

DECP Holdings, Inc.

Virginia

DECP Holdings, Inc.

Denmark Solar, LLC

South Carolina

Denmark Solar, LLC

Dominion ACP Holding, Inc.

Virginia

Dominion ACP Holding, Inc.

Dominion Alternative Energy Holdings, Inc.

Virginia

Dominion Alternative Energy Holdings, Inc.

Dominion Atlantic Coast Pipeline, LLC

Virginia

Dominion Atlantic Coast Pipeline, LLC

Dominion Capital, Inc.

Virginia

Dominion Capital, Inc.

Dominion Cogen WV, Inc.

Virginia

Dominion Cogen WV, Inc.

Dominion Energy Fuel Services, Inc.

Virginia

Dominion Energy Fuel Services, Inc.

Dominion Energy Generation Marketing, Inc.

Delaware

Dominion Energy Generation Marketing, Inc.

Dominion Energy Innovations, Inc.

Virginia

Dominion Energy Innovations, Inc.

Dominion Energy Marketplace, LLC

Virginia

Dominion Energy Marketplace, LLC

Dominion Energy Nuclear Connecticut, Inc.

Delaware

Dominion Energy Nuclear Connecticut, Inc.

Dominion Energy Payroll Company, Inc.

Virginia

Dominion Energy Payroll Company, Inc.

Dominion Energy RNG Holdings II, Inc.

Delaware

Dominion Energy RNG Holdings II, Inc.

Dominion Energy RNG Holdings, Inc.

Virginia

Dominion Energy RNG Holdings, Inc.

Dominion Energy Services, Inc.

Virginia

Dominion Energy Services, Inc.

Dominion Energy Solar CA, LLC

Delaware

Dominion Energy Solar CA, LLC

Dominion Energy Solutions I, Inc.

Virginia

Dominion Energy Solutions I, Inc.

Dominion Energy South Carolina, Inc.

South Carolina

Dominion Energy South Carolina, Inc.

Dominion Energy Southeast Services, Inc.

South Carolina

Dominion Energy Southeast Services, Inc.

Dominion Energy Technical Solutions, Inc.

Virginia

Dominion Energy Technical Solutions, Inc.

Dominion Energy Technologies II, Inc.

Virginia

Dominion Energy Technologies II, Inc.

Dominion Energy Technologies, Inc.

Virginia

Dominion Energy Technologies, Inc.

Dominion Energy Terminal Company, Inc.

Virginia

Dominion Energy Terminal Company, Inc.

Dominion Energy, Inc.

Virginia

Dominion Energy, Inc.

Dominion Equipment III, Inc.

Delaware

Dominion Equipment III, Inc.

Dominion Equipment, Inc.

Virginia

Dominion Equipment, Inc.

Dominion Fairless Hills, Inc.

Delaware

Dominion Fairless Hills, Inc.

Dominion Fowler Ridge Wind, LLC

Virginia

Dominion Fowler Ridge Wind, LLC

Dominion Generation, Inc.

Virginia

Dominion Generation, Inc.

Dominion Greenbrier, Inc.

Virginia

Dominion Greenbrier, Inc.

Dominion High Voltage Holdings, Inc.

Virginia

Dominion High Voltage Holdings, Inc.

Dominion High Voltage MidAtlantic, Inc.

Virginia

Dominion High Voltage MidAtlantic, Inc.

Dominion Investments, Inc.

Virginia

Dominion Investments, Inc.

Dominion Keystone Pipeline Holdings, Inc.

Delaware

Dominion Keystone Pipeline Holdings, Inc.

Dominion Keystone Pipeline, LLC

Delaware

Dominion Keystone Pipeline, LLC

Dominion MLP Holding Company III, Inc.

Virginia

Dominion MLP Holding Company III, Inc.

Dominion Mt. Storm Wind, LLC

Virginia

Dominion Mt. Storm Wind, LLC

Dominion Nuclear Projects, Inc.

Virginia

Dominion Nuclear Projects, Inc.

Dominion Oklahoma Texas Exploration & Production, Inc.

Delaware

Dominion Oklahoma Texas Exploration & Production, Inc.

Dominion Person, Inc.

Delaware

Dominion Person, Inc.

Dominion Privatization Florida, LLC

Virginia

Dominion Privatization Florida, LLC

Dominion Privatization Georgia, LLC

Virginia

Dominion Privatization Georgia, LLC

Dominion Privatization Holdings, Inc.

Virginia

Dominion Privatization Holdings, Inc.

Dominion Privatization Kentucky, LLC

Virginia

Dominion Privatization Kentucky, LLC

Dominion Privatization Maryland, LLC

Virginia

Dominion Privatization Maryland, LLC

Dominion Privatization Pennsylvania, LLC

Virginia

Dominion Privatization Pennsylvania, LLC

Dominion Privatization South Carolina, LLC

Virginia

Dominion Privatization South Carolina, LLC

Dominion Privatization Texas, LLC

Virginia

Dominion Privatization Texas, LLC

Dominion Privatization Virginia, LLC

Virginia

Dominion Privatization Virginia, LLC

Dominion Privatization Virginia 2, LLC

Virginia

Dominion Privatization Virginia 2, LLC

Dominion Products and Services, Inc.

Delaware

Dominion Products and Services, Inc.
Dominion Energy Solutions

Dominion Projects Services, Inc.

Virginia

Dominion Projects Services, Inc.

Dominion Resources Capital Trust III

Delaware

Dominion Resources Capital Trust III

Dominion Retail Gas Holdings, Inc.

Virginia

Dominion Retail Gas Holdings, Inc.

Dominion Solar Holdings IV, LLC

Virginia

Dominion Solar Holdings IV, LLC

Dominion Solar Projects C, Inc.

Virginia

Dominion Solar Projects C, Inc.

Dominion Solar Projects D, Inc.

Virginia

Dominion Solar Projects D, Inc.

Dominion Solar Projects III, Inc.

Virginia

Dominion Solar Projects III, Inc.

Dominion Solar Projects IV, Inc.

Virginia

Dominion Solar Projects IV, Inc.

Dominion Solar Projects V, Inc.

Virginia

Dominion Solar Projects V, Inc.

Dominion Solar Projects VI, Inc.

Virginia

Dominion Solar Projects VI, Inc.

Dominion Solar Projects VII, Inc.

Virginia

Dominion Solar Projects VII, Inc.

Dominion Solar Services, Inc.

Virginia

Dominion Solar Services, Inc.

Dominion State Line, LLC

Delaware

Dominion State Line, LLC

Dominion Utility Privatization, LLC

Delaware

Dominion Utility Privatization, LLC

Dominion Utility Privatization Holdings, LLC

Delaware

Dominion Utility Privatization Holdings, LLC

Dominion Voltage, Inc.

Virginia

Dominion Voltage, Inc.
DVI

DVI Grid Solutions

Dominion Wholesale, Inc.

Virginia

Dominion Wholesale, Inc.

Dominion Wind Development, LLC

Virginia

Dominion Wind Development, LLC

Dominion Wind Projects, Inc.

Virginia

Dominion Wind Projects, Inc.

Eagle Holdco Solar, LLC

Virginia

Eagle Holdco Solar, LLC

Eagle Solar, LLC

Virginia

Eagle Solar, LLC

Eastern Shore Solar LLC

Delaware

Eastern Shore Solar LLC

ESCT-SA-Suffield, LLC

Connecticut

ESCT-SA-Suffield, LLC

Foxhound Solar, LLC

Delaware

Foxhound Solar, LLC

Fremont Farm, LLC

North Carolina

Fremont Farm, LLC

Greenbrier Marketing Company, LLC

Delaware

Greenbrier Marketing Company, LLC

Greenbrier Pipeline Company, LLC

Delaware

Greenbrier Pipeline Company, LLC

Greensville County Solar Project, LLC

Delaware

Greensville County Solar Project, LLC

Hardin Solar Energy LLC

Delaware

Hardin Solar Energy LLC

Hecate Energy Cherrydale LLC

Delaware

Hecate Energy Cherrydale LLC

Hecate Energy Clarke County LLC

Delaware

Hecate Energy Clarke County LLC

Innovative Solar 37, LLC

North Carolina

Innovative Solar 37, LLC

Moffett Solar 1, LLC

Delaware

Moffett Solar 1, LLC

Moorings Farm 2, LLC

North Carolina

Moorings Farm 2, LLC

Mustang Solar, LLC

North Carolina

Mustang Solar, LLC

OSW Project LLC

Virginia

OSW Project LLC

Pickaway County Solar Project, LLC

Delaware

Pickaway County Solar Project, LLC

Pikeville Farm, LLC

North Carolina

Pikeville Farm, LLC

Prairie Fork Wind Farm, LLC

Virginia

Prairie Fork Wind Farm, LLC

RePower South, LLC

South Carolina

RePower South, LLC

Ridgeland Solar Farm I, LLC

Delaware

Ridgeland Solar Farm I, LLC

SCANA Corporate Security Services, Inc.

South Carolina

SCANA Corporate Security Services, Inc.

SCANA Corporation

South Carolina

SCANA Corporation

Scott-II Solar LLC

Delaware

Scott-II Solar LLC

Seabrook Solar, LLC

Delaware

Seabrook Solar, LLC

Siler Solar, LLC

North Carolina

Siler Solar, LLC

South Carolina Fuel Company, Inc.

South Carolina

South Carolina Fuel Company, Inc.

South Carolina Generating Company, Inc.

South Carolina

South Carolina Generating Company, Inc.

Southampton Solar LLC

Delaware

Southampton Solar LLC

SRFI, LLC

South Carolina

SRFI, LLC

Summit Farms Solar, LLC

North Carolina

Summit Farms Solar, LLC

Sussex Drive Solar Project, LLC

Delaware

Sussex Drive Solar Project, LLC

Trask East Solar, LLC

South Carolina

Trask East Solar, LLC

Tredegar Solar, LLC

Virginia

Tredegar Solar, LLC

TWE Myrtle Solar Project, LLC

Delaware

TWE Myrtle Solar Project, LLC

Valley Link Transmission Company, LLC

Delaware

Valley Link Transmission Company, LLC

Valley Link Transmission Maryland, LLC

Maryland

Valley Link Transmission Maryland, LLC

Valley Link Transmission Ohio, LLC

Ohio

Valley Link Transmission Ohio, LLC

Valley Link Transmission Virginia

Development, Inc.

Virginia

Valley Link Transmission Virginia Development, Inc.

Valley Link Transmission Virginia, LLC

Virginia

Valley Link Transmission Virginia, LLC

Valley Link Transmission West Virginia, LLC

Delaware

Valley Link Transmission West Virginia, LLC

Virginia Electric and Power Company

Virginia

Virginia Electric and Power Company
Dominion Energy Virginia
Dominion Energy North Carolina

Virginia Power Fuel Corporation

Virginia

Virginia Power Fuel Corporation

Virginia Power Fuel Securitization, LLC

Delaware

Virginia Power Fuel Securitization, LLC

Virginia Power Nuclear Services Company

Virginia

Virginia Power Nuclear Services Company

Virginia Power Services Energy Corp., Inc.

Virginia

Virginia Power Services Energy Corp., Inc.

Virginia Power Services, LLC

Virginia

Virginia Power Services, LLC

Virginia Solar 2017 Projects LLC

Delaware

Virginia Solar 2017 Projects LLC

VP Property, Inc.

Virginia

VP Property, Inc.

Wakefield Solar, LLC

North Carolina

Wakefield Solar, LLC

Wilkinson Solar LLC

Delaware

Wilkinson Solar LLC

Yemassee Solar, LLC

South Carolina

Yemassee Solar, LLC