Directory of Electric Companies in the United States
| Company Name | Company Location | Utility Type | Power Plants | EIA Annual Generation | EIA Latest Generation | FERC Lastest Date | FERC 2025Q2 Seller Transactions | FERC 2025Q2 Buyer Transactions |
|---|---|---|---|---|---|---|---|---|
| Southwestern Public Service Co | Amarillo, TX | Investor-Owned Utility | 18 | 17.1 TWh | May 2026 | Oct 2025 | $231.47M | $98.95M |
| Evergy Metro | Kansas City, MO | Investor-Owned Utility | 11 | 17.1 TWh | May 2026 | Oct 2025 | $164.54M | $9.27M |
| Constellation Power Source Generation, LLC | Baltimore, MD | Independent Power Producer | 29 | 17.5 TWh | May 2026 | Sep 2025 | $6.14M | |
| Oglethorpe Power Corporation | Tucker, GA | Cooperative | 13 | 18.0 TWh | May 2026 | Sep 2025 | $34.46M | $3.20M |
| Monongahela Power Co | Greensburg, PA | Investor-Owned Utility | 10 | 18.1 TWh | May 2026 | Oct 2025 | $290.81M | $995.94k |
| Oklahoma Gas & Electric Co | Oklahoma City, OK | Investor-Owned Utility | 22 | 18.6 TWh | May 2026 | Oct 2025 | $116.11M | $18.97M |
| Big Sky Wind, LLC | Pittsburgh, PA | Independent Power Producer | 15 | 18.8 TWh | Dec 2025 | Oct 2025 | $8.47M | |
| Mississippi Power Co | Gulfport, MS | Investor-Owned Utility | 8 | 19.3 TWh | May 2026 | Sep 2025 | $65.80M | $4.58M |
| Southwestern Electric Power Co | Tulsa, OK | Investor-Owned Utility | 16 | 19.4 TWh | May 2026 | Sep 2025 | $40.06M | $10.95M |
| South Carolina Public Service Authority | Moncks Corner, SC | State-Owned Utility | 16 | 19.7 TWh | May 2026 | Oct 2025 | $332.56M | $45.75M |
| Talenenergy Susquehanna LLC | Allentown, PA | Independent Power Producer | 1 | 20.2 TWh | May 2026 | - | ||
| Energy Northwest | Richland, WA | State-Owned Utility | 4 | 20.2 TWh | May 2026 | Mar 2016 | ||
| Dominion Energy Nuclear Conn Inc | Richmond, VA | Investor-Owned Utility | 29 | 20.4 TWh | May 2026 | Sep 2025 | $168.96M | |
| Tampa Electric Co | Tampa, FL | Investor-Owned Utility | 50 | 21.4 TWh | May 2026 | Oct 2025 | $3.56M | $37.45M |
| Wisconsin Power & Light Co | Madison, WI | Investor-Owned Utility | 38 | 21.8 TWh | May 2026 | Oct 2025 | $167.64M | $10.83M |
| Duke Energy Indiana, LLC | Plainfield, IN | Investor-Owned Utility | 19 | 22.1 TWh | May 2026 | Oct 2025 | $304.71M | $21.51M |
| Avangrid Power LLC | Portland, OR | Independent Power Producer | 90 | 22.3 TWh | May 2026 | Oct 2025 | $124.30M | $36.03M |
| Wisconsin Electric Power Co | Milwaukee, WI | Investor-Owned Utility | 61 | 22.5 TWh | May 2026 | Oct 2025 | $198.65M | $157.00M |
| STP Nuclear Operating Co | Wadsworth, TX | Municipally-Owned Utility | 1 | 22.5 TWh | May 2026 | - | ||
| Appalachian Power Co | Columbus, OH | Investor-Owned Utility | 20 | 23.1 TWh | May 2026 | Oct 2025 | $38.00M | $43.20M |
| Louisville Gas & Electric Co | Louisville, KY | Investor-Owned Utility | 8 | 23.2 TWh | May 2026 | Oct 2025 | $15.62M | $18.44M |
| Dominion Energy South Carolina, Inc | Cayce, SC | Investor-Owned Utility | 23 | 23.4 TWh | May 2026 | Oct 2025 | $4.36M | $85.75M |
| Public Service Co Of Colorado | Denver, CO | Investor-Owned Utility | 33 | 24.6 TWh | May 2026 | - | ||
| City Of San Antonio - (TX) | San Antonio, TX | Municipally-Owned Utility | 19 | 24.6 TWh | May 2026 | - | ||
| Basin Electric Power Coop | Bismarck, ND | Cooperative | 18 | 26.7 TWh | May 2026 | Oct 2025 | $659.16M | $75.17M |
| New York Power Authority | White Plains, NY | State-Owned Utility | 22 | 26.7 TWh | May 2026 | Sep 2025 | $21.06M | |
| Consumers Energy Co - (Mi) | Jackson, MI | Investor-Owned Utility | 40 | 26.8 TWh | May 2026 | Oct 2025 | $500.97M | $182.47M |
| Associated Electric Coop, Inc | Springfield, MO | Cooperative | 11 | 27.0 TWh | May 2026 | Oct 2025 | $102.40M | $35.00M |
| Salt River Project | Phoenix, AZ | Political Subdivision | 22 | 27.5 TWh | May 2026 | Oct 2025 | $51.30M | $124.41M |
| Lafrontera Holdings LLC | Irving, TX | Independent Power Producer | 3 | 28.2 TWh | May 2026 | - | ||
| NRG Texas Power LLC | Houston, TX | Independent Power Producer | 10 | 28.5 TWh | May 2026 | - | ||
| Indiana Michigan Power Co | Fort Wayne, IN | Investor-Owned Utility | 15 | 29.6 TWh | May 2026 | Oct 2025 | $93.40M | |
| RWE Clean Energy | Austin, TX | Independent Power Producer | 169 | 29.6 TWh | May 2026 | Oct 2025 | $9.10M | $7.83M |
| PSEG Nuclear LLC | Newark, NJ | Independent Power Producer | 2 | 29.8 TWh | May 2026 | Sep 2025 | $248.37M | |
| Pacific Gas & Electric Co. | San Francisco, CA | Investor-Owned Utility | 88 | 34.4 TWh | May 2026 | Oct 2025 | $478.63M | $664.61M |
| Union Electric Co - (Mo) | St Louis, MO | Investor-Owned Utility | 34 | 34.7 TWh | May 2026 | Oct 2025 | $687.14M | $457.50k |
| U S Bureau Of Reclamation | Denver, CO | Federally-Owned Utility | 60 | 35.0 TWh | May 2026 | Nov 2022 | ||
| Energy Harbor Nuclear Generation LLC | Akron, OH | Independent Power Producer | 3 | 35.5 TWh | May 2026 | Oct 2025 | $344.88M | |
| Invenergy Services LLC | Chicago, IL | Independent Power Producer | 88 | 37.3 TWh | May 2026 | - | ||
| Northern States Power Co - Minnesota | Minneapolis, MN | Investor-Owned Utility | 67 | 39.8 TWh | May 2026 | Oct 2025 | $352.04M | $76.80M |
| Entergy Arkansas LLC | Little Rock, AR | Investor-Owned Utility | 19 | 41.7 TWh | May 2026 | Oct 2025 | $350.68M | $55.93M |
| Midamerican Energy Co | Urbandale, IA | Investor-Owned Utility | 62 | 42.6 TWh | May 2026 | Oct 2025 | $297.24M | $13.35M |
| Usace Northwestern Division | Portland, OR | Federally-Owned Utility | 21 | 45.4 TWh | May 2026 | - | ||
| Duke Energy Florida, LLC | St. Petersburg, FL | Independent Power Producer|Investor-Owned Utility | 53 | 46.7 TWh | May 2026 | Sep 2025 | $17.46M | $17.05M |
| Southern Power Co | Atlanta, GA | Investor-Owned Utility | 53 | 48.1 TWh | May 2026 | Sep 2025 | $195.58M | $6.65M |
| Luminant Generation Company LLC | Irving, TX | |Independent Power Producer | 29 | 51.0 TWh | May 2026 | - | ||
| Entergy Louisiana LLC | Jefferson, LA | Investor-Owned Utility | 33 | 52.6 TWh | May 2026 | Oct 2025 | $719.46M | $116.81M |
| DTE Electric Company | Detroit, MI | Investor-Owned Utility | 65 | 53.2 TWh | May 2026 | Oct 2025 | $742.54M | $16.76M |
| Pacificorp | Portland, OR | Investor-Owned Utility | 85 | 53.8 TWh | May 2026 | Oct 2025 | $81.18M | $2.41B |
| Arizona Public Service Co | Phoenix, AZ | Investor-Owned Utility | 30 | 55.3 TWh | May 2026 | Oct 2025 | $24.68M | $234.49M |
| Alabama Power Co | Birmingham, AL | Investor-Owned Utility | 32 | 66.9 TWh | May 2026 | Sep 2025 | $61.79M | $45.90M |
| Duke Energy Progress - (NC) | Charlotte, NC | Investor-Owned Utility | 38 | 68.6 TWh | May 2026 | Oct 2025 | $372.30M | $67.67M |
| Virginia Electric & Power Co | Richmond, VA | Investor-Owned Utility | 47 | 85.6 TWh | May 2026 | Oct 2025 | $1.25B | $30.83M |
| Georgia Power Co | Atlanta, GA | Investor-Owned Utility | 63 | 107.9 TWh | May 2026 | Oct 2025 | $13.78M | $237.04M |
| Duke Energy Carolinas, LLC | Charlotte, NC | Investor-Owned Utility | 61 | 108.1 TWh | May 2026 | Sep 2025 | $178.57M | $126.52M |
| Tennessee Valley Authority | Knoxville, TN | Federally-Owned Utility | 62 | 154.0 TWh | May 2026 | Oct 2025 | $2.18M | $275.07M |
| Florida Power & Light Co | Miami, FL | Investor-Owned Utility | 159 | 156.2 TWh | May 2026 | Sep 2025 | $189.77M | $26.45M |
| Constellation Nuclear | Warrenville, IL | Independent Power Producer | 14 | 195.6 TWh | May 2026 | - |
Top Power Plants in United States
| Plant | Location | Annual Generation | Initial Operation Date | Last Update | Fuel Types |
|---|---|---|---|---|---|
| Arkansas Nuclear One | Russellville, Arkansas | 14 TWh | Nov 1974 | May 2026 | Nuclear |
| Barry | Bucks, Alabama | 12 TWh | Jan 1954 | May 2026 | Natural Gas : 97.1% Bituminous Coal : 2.9% |
| Beaver Valley | Shippingport, Pennsylvania | 15 TWh | Aug 1976 | May 2026 | Nuclear |
| Bowen | Cartersville, Georgia | 13 TWh | Sep 1971 | May 2026 | Bituminous Coal : 99.8% |
| Braidwood Generation Station | Braceville, Illinois | 20 TWh | Jun 1988 | May 2026 | Nuclear |
| Browns Ferry | Decatur, Alabama | 31 TWh | Jul 1974 | May 2026 | Nuclear |
| Brunswick Nuclear | Southport, North Carolina | 15 TWh | Oct 1975 | May 2026 | Nuclear |
| Byron Generating Station | Byron, Illinois | 20 TWh | Aug 1985 | May 2026 | Nuclear |
| Calvert Cliffs Nuclear Power Plant | Lusby, Maryland | 15 TWh | Apr 1975 | May 2026 | Nuclear |
| Catawba | York, South Carolina | 18 TWh | May 1985 | May 2026 | Nuclear |
| Comanche Peak | Glen Rose, Texas | 20 TWh | Jul 1990 | May 2026 | Nuclear |
| Crystal River | Crystal River, Florida | 16 TWh | Sep 1966 | May 2026 | Natural Gas : 68.9% Bituminous Coal : 30.9% |
| Diablo Canyon | Avila Beach, California | 18 TWh | Apr 1985 | May 2026 | Nuclear |
| Donald C Cook | Bridgman, Michigan | 19 TWh | Jul 1975 | May 2026 | Nuclear |
| Dresden Generating Station | Morris, Illinois | 15 TWh | Jul 1970 | May 2026 | Nuclear |
| Edwin I Hatch | Baxley, Georgia | 14 TWh | Nov 1975 | May 2026 | Nuclear |
| Gavin Power, LLC | Cheshire, Ohio | 13 TWh | Sep 1974 | May 2026 | Bituminous Coal : 99.6% |
| Grand Coulee | Grand Coulee, Washington | 18 TWh | Feb 1941 | May 2026 | Water |
| Guernsey Power Station | Byesville, Ohio | 12 TWh | Jan 2023 | May 2026 | Natural Gas |
| H Allen Franklin Combined Cycle | Smiths, Alabama | 12 TWh | May 2002 | May 2026 | Natural Gas |
| Jack McDonough | Smyrna, Georgia | 18 TWh | Apr 1971 | May 2026 | Natural Gas |
| James H Miller Jr | Quinton, Alabama | 19 TWh | Sep 1978 | May 2026 | Subbituminous Coal : 99.0% Natural Gas : 1.0% |
| Joseph M Farley | Columbia, Alabama | 15 TWh | Nov 1977 | May 2026 | Nuclear |
| Labadie | Labadie, Missouri | 15 TWh | May 1970 | May 2026 | Subbituminous Coal : 99.9% |
| LaSalle Generating Station | Marseilles, Illinois | 18 TWh | Dec 1983 | May 2026 | Nuclear |
| Limerick | Sanatoga, Pennsylvania | 19 TWh | Jan 1986 | May 2026 | Nuclear |
| McGuire | Huntersville, North Carolina | 19 TWh | Aug 1981 | May 2026 | Nuclear |
| Millstone | Waterford, Connecticut | 17 TWh | Nov 1975 | May 2026 | Nuclear |
| Monroe (MI) | Monroe, Michigan | 16 TWh | Oct 1969 | May 2026 | Subbituminous Coal : 75.2% Bituminous Coal : 15.7% Petroleum Coke : 8.9% |
| Nine Mile Point Nuclear Station | Lycoming, New York | 16 TWh | Nov 1969 | May 2026 | Nuclear |
| North Anna | Mineral, Virginia | 16 TWh | May 1978 | May 2026 | Nuclear |
| Oak Grove (TX) | Franklin, Texas | 12 TWh | Mar 2010 | May 2026 | Lignite Coal : 99.1% Natural Gas : 0.9% |
| Oconee | Seneca, South Carolina | 22 TWh | Jun 1973 | May 2026 | Nuclear |
| Palo Verde | Wintersburg, Arizona | 31 TWh | Dec 1985 | May 2026 | Nuclear |
| Peach Bottom | Delta, Pennsylvania | 22 TWh | Jun 1974 | May 2026 | Nuclear |
| Prairie State Generating Station | Marissa, Illinois | 12 TWh | May 2012 | May 2026 | Bituminous Coal : 99.8% |
| PSEG Salem Generating Station | Hancocks Bridge, New Jersey | 19 TWh | May 1971 | May 2026 | Nuclear |
| Quad Cities Generating Station | Cordova, Illinois | 15 TWh | Nov 1972 | May 2026 | Nuclear |
| Robert Moses Niagara | Lewiston, New York | 14 TWh | Dec 1960 | May 2026 | Water |
| Sequoyah | Soddy Daisy, Tennessee | 17 TWh | Jun 1981 | May 2026 | Nuclear |
| South Texas Project | Wadsworth, Texas | 21 TWh | Jul 1988 | May 2026 | Nuclear |
| St Lucie | Jensen Beach, Florida | 15 TWh | Apr 1976 | May 2026 | Nuclear |
| Surry | Surry, Virginia | 12 TWh | Nov 1972 | May 2026 | Nuclear |
| TalenEnergy Susquehanna | Berwick, Pennsylvania | 19 TWh | May 1983 | May 2026 | Nuclear |
| Turkey Point | Homestead, Florida | 20 TWh | Mar 1967 | May 2026 | Nuclear : 64.2% Natural Gas : 35.8% |
| Union Power Station | El Dorado, Arkansas | 12 TWh | Dec 2002 | May 2026 | Natural Gas |
| Vogtle | Waynesboro, Georgia | 37 TWh | Apr 1987 | May 2026 | Nuclear |
| W A Parish | Thompsons, Texas | 14 TWh | May 1958 | May 2026 | Subbituminous Coal : 81.6% Natural Gas : 18.4% |
| Watts Bar Nuclear Plant | Spring City, Tennessee | 20 TWh | Apr 1996 | May 2026 | Nuclear |
| West County Energy Center | Loxahatchee, Florida | 18 TWh | Jul 2009 | May 2026 | Natural Gas |