United States electric companies by state.

• Alabama - AECO (Alabama Electric Company)Alabama Power, a part of the Southern Company ,PowerSouth Energy Cooperative, Inc., Wiregrass Electric Cooperative
• Alaska - Golden Valley Electric Association, Chugach Electric Association, Copper Valley Electric Association, Municipal Light & Power, Kodiak Electric Association, Alaska Villages Electric Cooperative
• Arizona - Arizona Public Service, Salt River Project, Tucson Electric Power
• Arkansas - Entergy, North Little Rock Electric
• California - Azusa Light & Water, City of Palo Alto Utilities, Glendale Public Service Department, Gridley Municipal Utilities, Healdsburg Municipal Electric Department, Los Angeles Department of Water and Power, Pacific Gas & Electric, Pacific Power, Riverside Public Utilities, Sacramento Municipal Utility District, Santa Clara Electric Department(a.k.a. Silicon Valley Energy), San Diego Gas & Electric, Sierra-Pacific Power, Southern California Edison, Southern California Public Power Authority, Pasadena Water & Power, Burbank Water & Power, Anaheim Public utilities
• Colorado - Xcel Energy, Colorado Springs Utilities, United Power Inc, Holy Cross Energy Company
• Connecticut - Northeast Utilities (including Connecticut Light & Power), United Illuminating, Connectict Natural Gas
• Delaware - Delaware Power & Light (a subsidiary of Pepco Holdings, Inc.), City of Milford Electric Department
• District of Columbia - PEPCO
• Florida - Florida Power & Light, TECO, Progress Energy Florida, Lake Worth Utilities, JEA, Lakeland Electric, Gulf Power,Kissimmee Utility Authority, Ocala Electric, Florida Public Utility Company Palm Beach, Florida Municipal Power Agency, LCEC, Gainesville Regional Utilities, City of Tallahassee utilities, Orlando Utilities Commission
• Georgia - Georgia Power , a part of the Southern Company, Flint Energies
• Hawaii - Hawaiian Electric Industries (HECO)
• Idaho - IDACORP, Clearwater Power, PacifiCorp (Rocky Mountain Power)
• Illinois - Ameren, Springfield City Water, Light & Power, ComEd
• Indiana - Duke Energy, Cinergy Corporation, Indianapolis Power & Light, Northern Indiana Public Service Company, American Electric Power
• Iowa - MidAmerican Energy, Alliant Energy
• Kansas - Kansas City Power & Light, Westar Energy, Kansas City Board of Public Utilities
• Kentucky - Kentucky Utilities, Louisville Gas & Electric, Cinergy Corporation, American Electric PowerOwensboro Municipal Utilities
• Louisiana - SWEPCO (a subsidiary of American Electric Power), Entergy, CLECO
• Maine - Central Maine Power, Bangor Hydro Electric
• Maryland - Baltimore Gas & Electric, PEPCO, Southern Maryland Electric Cooperative, Allegheny Power, Conectiv (a subsidiary of Pepco Holdings, Inc.), Choptank Electric Cooperative
• Massachusetts - NSTAR (including several former local Boston and Cambridge electricity and gas companies), Northeast Utilities (including Western Massachusetts Electric, Berkshire Company/WMECO), National Grid (including Nantucket Electric and Massachusetts Electric)
• Michigan - Consumers Energy, DTE Energy (Detroit Edison), We Energies, American Electric Power, Wyandotte Municipal Services City of Wyandotte only, Holland Board of Public Works, Lansing Board of Water & Light, Upper Peninsula Power Company
• Mississippi - Entergy, Southwest Mississippi Electric Power Association, Magnolia Electric, Mississippi Power company, a part of the Southern Company
• Minnesota - Xcel Energy, Great River Energy (and its 28 member cooperatives), Minnkota Power Cooperative (and its 11 member cooperatives), Basin Electric Power Cooperative, East River Electric Power Co-op, Hutchinson Utilities Commission, Interstate Power and Light Company, L&O Power Co-op, Marshall Municipal Utilities, Minnesota Power, Minnetonka Power Co-op, Missouri River Energy, Otter Tail Power Company, Rochester Public Utilities Commission, Southern Minnesota Municipal Power Agency, Willmar Municipal Utilities, Freeborn-Mower Co-op Services, People’s Co-op, Tri-County Electric
• Missouri - Ameren,Kansas City Power & Light, Empire District Electric, Aquila, City Utilities of Springfield, Independence Power and Light
• Montana - Northwestern_Energy, Montana-Dakota Utilities, Central Montana Electric Power Cooperative, Montana Electric Cooperatives' Association (and its 25 member cooperatives)
• Nebraska - Omaha Public Power District, Nebraska Public Power District
• Nevada - NV Energy (Nevada Power, Sierra Pacific Power)
• New Hampshire - Northeast Utilities (including Public Service of NH), National Grid (including Granite State Electric)
• New Jersey - Atlantic City Electric (A subsidiary of Pepco), Public Service Electric and Gas Company (PSE&G), Northeast Utilities, FirstEnergy, Jersey Central Power and Light Company (A subsidiary of GPU Energy, which is a subsidiary of GPU; all of which is now part of FirstEnergy), Vineland Municipal Electric Utility(New Jersey's sole municipal utility), Sussex Rural Electric Cooperative (New Jersey's sole Electric Cooperative)
• New Mexico - Public Service Company of New Mexico
• New York - CH Energy Group (formerly Central Hudson Gas & Electric), Consolidated Edison Company of New York (Con Edison), Jamestown BPU, Long Island Power Authority (LIPA), Northeast Utilities, National Grid (including Niagara Mohawk), New York Power Authority (NYPA), New York State Electric & Gas (NYSEG), Rochester Gas & Electric
• North Carolina - Progress Energy Carolinas, Duke Energy, ElectriCities, North Carolina Electric Membership Corp.
• North Dakota - Xcel Energy, Otter Tail Power Company, Montana-Dakota Utilities, Central Power Electric Cooperative, Minnkota Power Cooperative, Basin Electric Power Cooperative, Upper Missouri G&T Cooperative
• Ohio - Cinergy Corporation, FirstEnergy (Cleveland Electric Illuminating Company, Ohio Edison, Toledo Edison), American Electric Power, Dayton Power & Light, South Central Power Company, Consolidated Electric Cooperative
• Oklahoma - Oklahoma Gas & Electric, Public Service Company of Oklahoma (part of American Electric Power)
• Oregon - Columbia River Public Utility District, Eugene Water & Electric Board, PacifiCorp (Pacific Power), Portland General Electric, West Oregon Electric Cooperative
• Pennsylvania - Rural valley electric Co., FirstEnergy (Penn Power, Met-Ed, Penelec), PECO, Allegheny Power, PPL, Duquesne Light, Citizens Electric of Lewisburg, Pike County Light & Power Company, UGI Utilities, Inc. and Wellsboro Electric Company
• Puerto Rico - Autoridad de Energía Electrica, EcoEléctrica
• Rhode Island - National Grid (including Narragansett Electric)
• South Carolina - Santee Cooper, Duke Energy, Central Electric Power Cooperative, Inc., Progress Energy Carolinas, South Carolina Electric & Gas Company
• South Dakota - Xcel Energy, Otter Tail Power Company, Montana-Dakota Utilities, Northwestern_Energy, Black Hills Power, East River Electric Cooperative, Rushmore Electric Cooperative
• Tennessee - Citizens Utilities Board, Electric Power Board, Knoxville Utilities Board, Kingsport Power (Appalachian Power), Lenoir City Utilities Board, Memphis Light, Gas and Water, Nashville Electric Service, Tennessee Valley Authority, Jackson, Tennessee Jackson Energy Authority
• Texas - Austin Energy, CPS Energy, dPi Energy, Electric Database Publishing, First Texas Energy Corporation, Garland Power and Light, Luminant, Reliant Energy, CenterPoint Energy, Texas Electric Service Company, American Electric Power, Lower Colorado River Authority, Oncor Electric (Formerly TXU), Coserv Electric, Denton Municipal Electric, Entergy
• Utah - Intermountain Power Agency, PacifiCorp (Rocky Mountain Power)
• Vermont - Central Vermont Public Service, Green Mountain Power
• Virginia - Dominion Virginia Power, Rappahannock Electric Cooperative, Allegheny Power, Conectiv (a subsidiary of Pepco Holdings, Inc.), Appalachian Power, Virginia Power and Electric Company (VEPCO)
• Washington - PacifiCorp (Pacific Power), Puget Sound Energy, Seattle City Light, Snohomish County Public Utility District (PUD), Mason County Public Utility District 3, Klickitat Public Utility District, Avista Utilities,Grant County Public Utility District, Chelan County Public Utility District, Douglas County Public Utility District
• West Virginia - Allegheny Power, Appalachian Power, Wheeling Electric Power (AEP Ohio)
• Wisconsin - Dairyland Power Co-op, We Energies, Wisconsin Public Service Corporation, Xcel Energy, Wisconsin Power & Light, Madison Gas and Electric
• Wyoming - PacifiCorp (Rocky Mountain Power), Lower Valley Energy