Exhibit 21

Dominion Energy, Inc.

Subsidiaries of the Registrant

As of February 15, 2022

Name

Jurisdiction of Incorporation

Name Under Which Business is Conducted

Dominion Energy, Inc.

Virginia

Dominion Energy, Inc.

BrightSuite, Inc.

Virginia

BrightSuite, Inc.

BrightSuite Home Solar, Inc.

Virginia

BrightSuite Home Solar, Inc.

BrightSuite Home, LLC

Virginia

BrightSuite Home, LLC

BrightSuite Solar CT, Inc.

Virginia

BrightSuite Solar CT, Inc.

ESCT-SA-Suffield, LLC

Connecticut

ESCT-SA-Suffield, LLC

BrightSuite Solar SC, Inc.

Virginia

BrightSuite Solar SC, Inc.

BrightSuite Solar VA, Inc.

Virginia

BrightSuite Solar VA, Inc.

BrightSuite Solar Development, LLC

Virginia

BrightSuite Solar Development, LLC

DE Arlington Solar, LLC

Virginia

DE Arlington 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 Virginia Beach Solar, LLC

Virginia

DE Virginia Beach Solar, LLC

Tredegar Solar, LLC

Virginia

Tredegar Solar, LLC

Dominion Energy Marketplace, LLC

Virginia

Dominion Energy Marketplace, LLC

CNG Coal Company

Delaware

CNG Coal Company

DE 700 Canal Place, LLC

Virginia

DE 700 Canal Place, LLC

Dominion ACP Holding, Inc.

Virginia

Dominion ACP Holding, Inc.

Dominion Atlantic Coast Pipeline, LLC

Virginia

Dominion Atlantic Coast Pipeline, LLC

Atlantic Coast Pipeline, LLC

Delaware

Atlantic Coast Pipeline, LLC

Dominion Alternative Energy Holdings, Inc.

Virginia

Dominion Alternative Energy Holdings, Inc.

Dominion Energy Technologies II, Inc.

Virginia

Dominion Energy Technologies II, Inc.

Dominion Energy Technologies, Inc.

Virginia

Dominion Energy Technologies, Inc.

Dominion Voltage, Inc.

Virginia

Dominion Voltage, Inc.

DVI

Tredegar Solar Fund I, LLC

Delaware

Tredegar Solar Fund I, LLC

Dominion Capital, Inc.

Virginia

Dominion Capital, Inc.

Dominion Energy Fuel Services, Inc.

Virginia

Dominion Energy Fuel Services, Inc.

Dominion Energy Payroll Company, Inc.

Virginia

Dominion Energy Payroll Company, Inc.

Dominion Energy Questar Corporation

Utah

Dominion Energy Questar Corporation

DECP Holdings, Inc.

Virginia

DECP Holdings, Inc.

Dominion Energy Gas Distribution, LLC

Virginia

Dominion Energy Gas Distribution, LLC

The East Ohio Gas Company

Ohio

The East Ohio Gas Company

Dominion Energy Ohio

DEO Alternative Fuel, LLC

Ohio

DEO Alternative Fuel, LLC

Dominion Energy Wexpro Services Company

Utah

Dominion Energy Wexpro Services Company

Dominion Gas Projects Company, LLC

Delaware

Dominion Gas Projects Company, LLC

Questar Gas Company

Utah

Dominion Energy Utah (in Utah)

Dominion Energy Idaho (in Idaho)

Dominion Energy Wyoming (in Wyoming)

Questar InfoComm, Inc.

Utah

Questar InfoComm, Inc.

Wexpro Company

Utah

Wexpro Company

Wexpro II Company

Utah

Wexpro II Company

Wexpro Development Company

Utah

Wexpro Development Company

Dominion Energy RNG Holdings II, Inc.

Delaware

Dominion Energy RNG Holdings II, Inc.

Clean Energy Asset USA LLC

Delaware

Clean Energy Asset USA LLC

CEA Dairy RNG Colorado, LLC

Delaware

CEA Dairy RNG Colorado, LLC

CEA CO-Fort Morgan, LLC

Delaware

CEA CO-Fort Morgan, LLC

CEA Greely, LLC

Delaware

CEA Greely, LLC

CEA Dairy RNG Georgia, LLC

Delaware

CEA Dairy RNG Georgia, LLC

CEA Americus, LLC

Delaware

CEA Americus, 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 Mason, LLC

Delaware

CEA Mason, LLC

CEA Dairy RNG New Mexico, LLC

Delaware

CEA Dairy RNG New Mexico, LLC

CEA Clovis, LLC

Delaware

CEA Clovis, LLC

CEA Dairy RNG Texas, LLC

Delaware

CEA Dairy RNG Texas, LLC

CEA TX-Dimmitt, LLC

Delaware

CEA TX-Dimmitt, LLC

Dairy RNG Holdings, LLC

Delaware

Dairy RNG Holdings, LLC

Dominion Energy RNG Holdings, Inc.

Virginia

Dominion Energy RNG Holdings, Inc.

Align RNG, LLC

Delaware

Align RNG, 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 North Carolina, LLC

Delaware

Align Renewable Natural Gas

Align RNG Grady Road, LLC

Delaware

Align RNG Grady Road, LLC

Align RNG Magnolia, LLC

Delaware

Align RNG Magnolia, LLC

Align RNG North Carolina-Bowdens, LLC

Delaware

Align RNG North Carolina-Bowdens, LLC

Align RNG Utah, LLC

Delaware

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 Renewable Natural Gas

Align RNG Virginia-Waverly, LLC

Delaware

Align RNG Virginia-Waverly, LLC

Dominion Energy Services, Inc.

Virginia

Dominion Energy Services, Inc.

Dominion Energy Technical Solutions, Inc.

Virginia

Dominion Energy Technical Solutions, Inc.

Dominion Generation, Inc.

Virginia

Dominion Generation, Inc.

BOE Holdings, Inc.

Virginia

BOE Holdings, Inc.

Blue Ocean Energy Marine, LLC

Virginia

Blue Ocean Energy Marine, LLC

CNG Power Services Corporation

Delaware

CNG Power Services Corporation

Dominion Cogen WV, Inc.

Virginia

Dominion Cogen WV, Inc.

Dominion Energy Birdseye Holdings, Inc.

Virginia

Dominion Energy Birdseye Holdings, Inc.

Birdseye Renewable Energy, LLC

Delaware

Birdseye Renewable Energy, LLC

Birdseye Holdings LLC

North Carolina

Birdseye Holdings LLC

Angus Holdings LLC

North Carolina

Angus Holdings LLC

Charolais Holdings, LLC

North Carolina

Charolais Holdings, LLC

Dillon RE Holdings, LLC

North Carolina

Dillon RE Holdings, LLC

Hereford Holdings LLC

North Carolina

Hereford Holdings LLC

Simmental Holdings, LLC

North Carolina

Simmental Holdings, LLC

Sorghum Holdings, LLC

North Carolina

Sorghum Holdings, LLC

Birdseye Projects, LLC

North Carolina

Birdseye Projects, LLC

Alpaca Holdings, LLC

North Carolina

Alpaca Holdings, LLC

Aster Holdings, LLC

North Carolina

Aster Holdings, LLC

Bantam Holdings, LLC

North Carolina

Bantam Holdings, LLC

Bellflower Holdings, LLC

North Carolina

Bellflower Holdings, LLC

Brown Swiss Holdings II, LLC

North Carolina

Brown Swiss Holdings II, LLC

Canola Holdings, LLC

North Carolina

Canola Holdings, LLC

Chester White Holdings, LLC

North Carolina

Chester White Holdings, LLC

Chicory Holdings, LLC

North Carolina

Chicory Holdings, LLC

Collard Holdings, LLC

North Carolina

Collard Holdings, LLC

Cotswold Holdings, LLC

North Carolina

Cotswold Holdings, LLC

Currant Holdings, LLC

North Carolina

Currant Holdings, LLC

Devon Holdings, LLC

North Carolina

Devon Holdings, LLC

Dexter Holdings, LLC

North Carolina

Dexter Holdings, LLC

Dill Holdings, LLC

North Carolina

Dill Holdings, LLC

Dorset Holdings, LLC

North Carolina

Dorset Holdings, LLC

Endive Holdings, LLC

North Carolina

Endive Holdings, LLC

Energize Holdings III, LLC

North Carolina

Energize Holdings III, LLC

Flax Holdings, LLC

North Carolina

Flax Holdings, LLC

Gideon Solar, LLC

North Carolina

Gideon Solar, LLC

Ginger Holdings, LLC

North Carolina

Ginger Holdings, LLC

Guernsey Holdings LLC

North Carolina

Guernsey Holdings LLC

Hemlock Holdings, LLC

North Carolina

Hemlock Holdings, LLC

Hodges Solar, LLC

North Carolina

Hodges Solar, LLC

Hosta Holdings, LLC

North Carolina

Hosta Holdings, LLC

Joanna Solar, LLC

North Carolina

Joanna Solar, LLC

Kale Holdings, LLC

North Carolina

Kale Holdings, LLC

Leek Holdings, LLC

North Carolina

Leek Holdings, LLC

Leghorn Holdings, LLC

North Carolina

Leghorn Holdings, LLC

Lentil Holdings, LLC

North Carolina

Lentil Holdings, LLC

Leyland Holdings, LLC

North Carolina

Leyland Holdings, LLC

Millet Holdings, LLC

North Carolina

Millet Holdings, LLC

Mustard Holdings, LLC

North Carolina

Mustard Holdings, LLC

Okra Holdings, LLC

North Carolina

Okra Holdings, LLC

Power Path Holdings I, LLC

North Carolina

Power Path Holdings I, LLC

Power Path Holdings II, LLC

North Carolina

Power Path Holdings II, LLC

Power Path Holdings III, LLC

North Carolina

Power Path Holdings III, LLC

Quail Holdings, LLC

North Carolina

Quail Holdings, LLC

Rutabaga Holdings, LLC

North Carolina

Rutabaga Holdings, LLC

Safflower Holdings, LLC

North Carolina

Safflower Holdings, LLC

Sedge Holdings, LLC

North Carolina

Sedge Holdings, LLC

Shallot Holdings, LLC

North Carolina

Shallot Holdings, LLC

Silkie Holdings, LLC

North Carolina

Silkie Holdings, LLC

Strawberry Holdings, LLC

North Carolina

Strawberry Holdings, LLC

Sumac Holdings, LLC

North Carolina

Sumac Holdings, LLC

Watercress Holdings, LLC

North Carolina

Watercress Holdings, LLC

Yorkshire Holdings, LLC

North Carolina

Yorkshire Holdings, LLC

Dominion Energy Generation Marketing, Inc.

Delaware

Dominion Energy Generation Marketing, Inc.

Dominion Energy Nuclear Connecticut, Inc.

Delaware

Dominion Energy Nuclear Connecticut, Inc.

Dominion Energy Solar CA, LLC

Delaware

Dominion Energy Solar CA, LLC

Dominion Energy Terminal Company, Inc.

Virginia

Dominion Energy Terminal Company, 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 Mt. Storm Wind, LLC

Virginia

Dominion Mt. Storm Wind, LLC

Dominion Nuclear Projects, Inc.

Virginia

Dominion Nuclear Projects, Inc.

Dominion Energy Kewaunee, Inc.

Wisconsin

Dominion Energy Kewaunee, Inc.

Dominion Person, Inc.

Delaware

Dominion Person, Inc.

Dominion Solar Projects III, Inc.

Virginia

Dominion Solar Projects III, Inc.

Dominion Solar Projects VI, Inc.

Virginia

Dominion Solar Projects VI, Inc.

Greensville County Solar Project, LLC

Delaware

Greensville County Solar Project, LLC

Sol Madison Solar, LLC

Delaware

Sol Madison Solar, LLC

TWE Myrtle Solar Project, LLC

Delaware

TWE Myrtle Solar Project, LLC

Dominion Solar Projects VII, Inc.

Virginia

Dominion Solar Projects VII, Inc.

Blackville Solar Farm, LLC

South Carolina

Blackville Solar Farm, LLC

Denmark Solar, LLC

South Carolina

Denmark Solar, LLC

Hardin Solar Energy LLC

Delaware

Hardin Solar Energy LLC

Seabrook Solar, LLC

Delaware

Seabrook Solar, LLC

Trask East Solar, LLC

South Carolina

Trask East Solar, LLC

Wilkinson Solar LLC

Delaware

Wilkinson Solar LLC

Yemassee Solar, LLC

South Carolina

Yemassee Solar, LLC

Dominion Solar Services, Inc.

Virginia

Dominion Solar Services, Inc.

Dominion State Line, LLC

Delaware

Dominion State Line, LLC

Dominion Wholesale, Inc.

Virginia

Dominion Wholesale, Inc.

Dominion Wind Projects, Inc.

Virginia

Dominion Wind Projects, Inc.

Dominion Fowler Ridge Wind, LLC

Virginia

Dominion Fowler Ridge Wind, LLC

Dominion Wind Development, LLC

Virginia

Dominion Wind Development, LLC

Prairie Fork Wind Farm, LLC

Virginia

Prairie Fork Wind Farm, LLC

Eagle Holdco Solar, LLC

Virginia

Eagle Holdco Solar, LLC

Eagle Solar, LLC

Virginia

Eagle Solar, LLC

Dominion Solar Projects C, Inc.

Virginia

Dominion Solar Projects C, Inc.

Dominion Solar Holdings IV, LLC

Virginia

Dominion Solar Holdings IV, LLC

96WI 8ME LLC

Delaware

96WI 8ME LLC

Clipperton Holdings LLC

North Carolina

Clipperton Holdings LLC

Fremont Farm, LLC

North Carolina

Fremont Farm, 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

Pikeville Farm, LLC

North Carolina

Pikeville Farm, LLC

Ridgeland Solar Farm I, LLC

Delaware

Ridgeland Solar Farm I, LLC

Siler Solar, LLC

North Carolina

Siler Solar, LLC

Wakefield Solar, LLC

North Carolina

Wakefield Solar, LLC

Dominion Solar Projects D, Inc.

Virginia

Dominion Solar Projects D, Inc.

Dominion Solar Projects IV, Inc.

Virginia

Dominion Solar Projects IV, Inc.

Eastern Shore Solar LLC

Delaware

Eastern Shore Solar LLC

Hecate Energy Cherrydale LLC

Delaware

Hecate Energy Cherrydale LLC

Hecate Energy Clarke County LLC

Delaware

Hecate Energy Clarke County LLC

Southampton Solar LLC

Delaware

Southampton Solar LLC

Virginia Solar 2017 Projects LLC

Delaware

Virginia Solar 2017 Projects LLC

Buckingham Solar I LLC

Delaware

Buckingham Solar I LLC

Correctional Solar LLC

Delaware

Correctional Solar LLC

Scott-II Solar LLC

Delaware

Scott-II Solar LLC

Sussex Drive Solar Project, LLC

Delaware

Sussex Drive Solar Project, LLC

Dominion Solar Projects V, Inc.

Virginia

Dominion Solar Projects V, Inc.

Summit Farms Solar, LLC

North Carolina

Summit Farms Solar, LLC

Dominion Greenbrier, Inc.

Virginia

Dominion Greenbrier, Inc.

Greenbrier Pipeline Company, LLC

Delaware

Greenbrier Pipeline Company, LLC

Greenbrier Marketing Company, LLC

Delaware

Greenbrier Marketing Company, LLC

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 Oklahoma Texas Exploration & Production, Inc.

Delaware

Dominion Oklahoma Texas Exploration & Production, Inc.

Dominion Privatization Holdings, Inc.

Virginia

Dominion Privatization Holdings, Inc.

Dominion Privatization Florida, LLC

Virginia

Dominion Privatization Florida, LLC

Dominion Privatization Georgia, LLC

Virginia

Dominion Privatization Georgia, LLC

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 Utility Privatization, LLC

Delaware

Dominion Utility Privatization, 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.

Hope Gas, Inc.

West Virginia

Dominion Energy West Virginia

SCANA Corporation

South Carolina

SCANA Corporation

Dominion Energy South Carolina, Inc.

South Carolina

Dominion Energy South Carolina

SRFI, LLC

South Carolina

SRFI, LLC

Dominion Energy Southeast Services, Inc.

South Carolina

Dominion Energy Southeast Services, Inc.

Public Service Company of North Carolina, Incorporated

South Carolina

Dominion Energy North Carolina

Clean Energy Enterprises, Inc.

North Carolina

Clean Energy Enterprises, Inc.

PSNC Blue Ridge Corporation

North Carolina

PSNC Blue Ridge Corporation

PSNC Cardinal Pipeline Company

North Carolina

PSNC Cardinal Pipeline Company

SCANA Corporate Security Services, Inc.

South Carolina

SCANA Corporate Security Services, Inc.

South Carolina Fuel Company, Inc.

South Carolina

South Carolina Fuel Company, Inc.

South Carolina Generating Company, Inc.

South Carolina

South Carolina Generating Company, Inc.

Virginia Electric and Power Company

Virginia

Dominion Energy Virginia (in Virginia)

Dominion Energy North Carolina (in North Carolina)

Virginia Power Fuel Corporation

Virginia

Virginia Power Fuel Corporation

Virginia Power Services, LLC

Virginia

Virginia Power Services, 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.

VP Property, Inc.

Virginia

VP Property, Inc.