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 |
|---|---|---|---|---|---|---|---|---|
| US Dept Of Army, Garrison, APG | Aberdeen, MD | Federally-Owned Utility | 1 | 56.6 GWh | Dec 2024 | - | ||
| US Army Corps Of Engineers | St. Stephen, SC | Federally-Owned Utility | 1 | 265.5 GWh | Dec 2024 | - | ||
| US Air Force | Sagamore, MA | Federally-Owned Utility | 1 | 6.6 GWh | Dec 2025 | - | ||
| Ursa Community Solar | Scottsdale, AZ | Independent Power Producer | 1 | 8.2 GWh | Dec 2024 | - | ||
| Urban Grid Solar | Houston, TX | Independent Power Producer | 13 | 643.8 GWh | Dec 2025 | - | ||
| Upton Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.5 GWh | Dec 2024 | - | ||
| Upton County Solar 2 LLC | Irving, TX | Independent Power Producer | 1 | 408.7 GWh | Dec 2025 | - | ||
| Upstream Wind Energy LLC | Ashwaubenon, WI | - | - | - | Oct 2025 | $1.36M | ||
| Upper Peninsula Power Company | Marquette, MI | Investor-Owned Utility | 7 | 87.5 GWh | Dec 2024 | Oct 2025 | $5.49M | $5.40M |
| Upper Missouri G. & T. Electric Cooperative, Inc. | Sidney, MT | - | - | - | Sep 2025 | $218.04M | $222.86M | |
| Upper Michigan Energy Resources Company | Milwaukee, MI | Investor-Owned Utility | 2 | 608.3 GWh | Dec 2024 | Oct 2025 | $11.91M | $67.91k |
| UPC Power Solutions | Chicago, IL | Independent Power Producer | 8 | 48.1 GWh | Dec 2024 | - | ||
| Uns Electric, Inc | Tucson, AZ | Investor-Owned Utility | 5 | 107.8 GWh | Dec 2024 | Sep 2025 | $3.99M | $15.44M |
| University Park Energy LLC | University Park, IL | Independent Power Producer | 1 | 76.4 GWh | Dec 2024 | Sep 2025 | $5.01M | $55.25k |
| University Of Washington | Seattle, WA | State-Owned Utility | 1 | 2.8 GWh | Dec 2025 | - | ||
| University Of Texas At Austin | Austin, TX | State-Owned Utility | 1 | 384.4 GWh | Dec 2024 | - | ||
| University Of Tennessee | Knoxville, TN | State-Owned Utility | 1 | 36.8 GWh | Dec 2025 | - | ||
| University Of San Francisco | San Francisco, CA | Commercial | 1 | 5.2 GWh | Dec 2024 | - | ||
| University Of Redlands | Redlands, CA | Commercial | 1 | 2.0 GWh | Dec 2024 | - | ||
| University Of Oregon | Eugene, OR | State-Owned Utility | 1 | 976.2 MWh | Dec 2024 | - | ||
| University Of Notre Dame | Notre Dame, IN | Independent Power Producer | 2 | 105.2 GWh | Dec 2025 | - | ||
| University Of Northern Iowa | Cedar Falls, IA | State-Owned Utility | 1 | 22.8 GWh | Dec 2025 | - | ||
| University Of North Carolina | Chapel Hill, NC | State-Owned Utility | 2 | 61.7 GWh | Dec 2025 | - | ||
| University Of New Mexico | Albuquerque, NM | Political Subdivision | 2 | 84.9 GWh | Dec 2024 | - | ||
| University Of Minnesota Wcroc | Morris, MN | State-Owned Utility | 1 | 4.4 GWh | Dec 2024 | - | ||
| University Of Minnesota Morris Campus | Morris, MN | State-Owned Utility | 1 | 4.0 GWh | Dec 2024 | - | ||
| University Of Minnesota Central Utilities | Minneapolis, MN | Industrial | 2 | 185.4 GWh | Jan 2025 | - | ||
| University Of Michigan | ANN Arbor, MI | Commercial | 2 | 258.2 GWh | Dec 2025 | - | ||
| University Of Massachusetts Medical | Worcester, MA | State-Owned Utility | 1 | 75.1 GWh | Dec 2024 | - | ||
| University Of Massachusetts Amherst | Amherst, MA | State-Owned Utility | 1 | 104.0 GWh | Dec 2024 | - | ||
| University Of Illinois | Champaign, IL | State-Owned Utility | 2 | 342.8 GWh | Dec 2025 | - | ||
| University Of Connecticut | Storrs, CT | State-Owned Utility | 1 | 121.3 GWh | Nov 2025 | - | ||
| University Of Colorado | Boulder, CO | Independent Power Producer | 1 | 256.2 MWh | Jan 2025 | - | ||
| University Of Cincinnati | Cincinatti, OH | Commercial | 2 | 230.8 GWh | Dec 2025 | - | ||
| University Of California Santa CRUZ | Santa CRUZ, CA | State-Owned Utility | 1 | 38.7 GWh | Dec 2024 | - | ||
| University Of California, San Francisco | San Francisco, CA | Commercial | 1 | 72.6 GWh | Dec 2025 | - | ||
| University Of California San Diego | La Jolla, CA | State-Owned Utility | 2 | 244.1 GWh | Dec 2025 | - | ||
| University Of California-La | LOS Angeles, CA | |Commercial | 2 | 226.9 GWh | Dec 2025 | - | ||
| University Of California Irvine | Irvine, CA | State-Owned Utility | 1 | 121.9 GWh | Dec 2025 | - | ||
| University Of Arkansas | Fayetteville, AR | Commercial | 1 | 36.6 GWh | Dec 2024 | - | ||
| University Of Arizona | Tucson, AZ | State-Owned Utility | 3 | 96.7 GWh | Dec 2025 | - | ||
| University Of Alaska | Fairbanks, AK | State-Owned Utility | 1 | 73.8 GWh | Dec 2025 | - | ||
| Unitil Energy Systems, Inc. | Hampton, NH | - | - | - | Sep 2025 | $1.80M | $2.84M | |
| United Therapeutics Corporation | Silver Spring, MD | Independent Power Producer | 1 | 4.4 GWh | Dec 2024 | - | ||
| United Technologies | East Hartford, CT | Industrial | 1 | 73.8 GWh | Oct 2025 | - | ||
| United States Sugar Corp | Clewiston, FL | Industrial | 2 | 288.0 GWh | Dec 2025 | - | ||
| United States Solar Corporation | Fairfield, CT | Independent Power Producer | 60 | 115.0 GWh | Dec 2024 | - | ||
| United Illuminating Co | Orange, CT | Investor-Owned Utility | 3 | 59.4 GWh | Dec 2025 | Sep 2025 | $20.21M | $64.93M |
| Unison Energy LLC | Greenwich, CT | Independent Power Producer | 1 | 23.6 GWh | Dec 2024 | - | ||
| Unisea Inc | Dutch Harbor, AK | Commercial | 1 | 35.0 GWh | Dec 2024 | - | ||
| Union Falls Hydro Power LP | Montreal, QB | Independent Power Producer | 1 | 13.0 GWh | Dec 2024 | - | ||
| Union Electric Co - (Mo) | St Louis, MO | Investor-Owned Utility | 33 | 34.7 TWh | Dec 2025 | Oct 2025 | $687.14M | $457.50k |
| Union Carbide Corp-Seadrift | Midland, MI | Industrial | 2 | 772.8 GWh | Dec 2025 | Oct 2025 | $3.22M | |
| Underhill Solar LLC | San Francisco, CA | Independent Power Producer | 1 | 3.8 GWh | Dec 2024 | - | ||
| Unbridled Solar, LLC | Bloomington, MN | - | - | - | Oct 2025 | $3.80M | ||
| Unalakleet Valley ELEC Coop | Unalakleet, AK | Cooperative | 1 | 4.0 GWh | Dec 2024 | - | ||
| Umbriel Solar, LLC | Boston, MA | Independent Power Producer | 1 | 334.9 GWh | Dec 2025 | Sep 2025 | $3.71M | |
| Umass Boston | Dorchester, MA | Commercial | - | 714.6 MWh | Dec 2023 | - | ||
| Ulysses Solar, LLC | Irvington, NY | Independent Power Producer | 1 | 1.6 GWh | Dec 2024 | - | ||
| Ulster Solar LLC | Juno Beach, FL | Independent Power Producer | 1 | 1.6 GWh | Dec 2024 | - | ||
| UIL Distributed Resources, LLC | New Haven, CT | Independent Power Producer | 1 | 19.4 GWh | Dec 2024 | Sep 2025 | $442.55k | |
| UGI Utilities Inc. | Denver, PA | - | - | - | Oct 2025 | $1.14M | $11.48M | |
| UGI Energy Services, LLC | Wyomissing, PA | Independent Power Producer|Industrial | 3 | 7.6 GWh | Dec 2025 | Oct 2025 | $511.64k | |
| Ub Fuel Cell | Bridgeport, CT | Commercial | 1 | 11.2 GWh | Dec 2023 | - | ||
| U S Power Generating Company LLC | Stamford, CT | Independent Power Producer | 3 | 962.0 GWh | Dec 2024 | - | ||
| U S Gypsum Co | Chicago, IL | Industrial | 1 | 2.6 GWh | Dec 2024 | - | ||
| U.S. General Services Administration | Indianapolis, IN | Federally-Owned Utility | 1 | 519.0 MWh | Dec 2024 | Sep 2025 | $5.59M | |
| U.S. Energy Partners, LLC | Garden City, NY | - | - | - | Oct 2025 | $80.39k | $91.91k | |
| U S Bureau Of Reclamation | Denver, CO | Federally-Owned Utility | 60 | 35.1 TWh | Dec 2025 | Nov 2022 | ||
| U S Borax Inc | Boron, CA | Independent Power Producer | 1 | 303.3 GWh | Dec 2025 | Oct 2025 | $445.85k | |
| U.S. Army - Radford | Radford, VA | Federally-Owned Utility | 1 | 37.7 GWh | Dec 2024 | - | ||
| U S Air Force-Eielson AFB | Eielson AFB, AK | Federally-Owned Utility | 1 | 93.6 GWh | Dec 2024 | - | ||
| Tyson Nick Solar Project, LLC | Paris, TX | Independent Power Producer | 1 | 37.9 GWh | Dec 2025 | - | ||
| TYR Energy, LLC | Overland Park, KS | - | - | - | Sep 2025 | $4.63M | $2.81M | |
| TX LFG Energy, LP | Pittsburgh, PA | Independent Power Producer | 6 | 7.6 GWh | Dec 2024 | - | ||
| TX Jumbo Road Wind, LLC | Hereford, TX | Independent Power Producer | 1 | 727.2 GWh | Dec 2025 | - | ||
| Two Dot Wind Broadview East LLC | Manhattan, MT | Independent Power Producer | 1 | 4.7 GWh | Dec 2023 | - | ||
| Twin Rivers Paper Co LLC | Madawaska, ME | Independent Power Producer | 1 | 108.6 GWh | Dec 2025 | - | ||
| Twin Ridges LLC | Pittsburgh, PA | - | - | - | Oct 2025 | $6.37M | ||
| Twin Lakes Solar LLC | Monticello, IN | Independent Power Producer | 1 | 336.5 GWh | Dec 2025 | Sep 2025 | $3.34M | |
| Twin Eagle Resource Management, LLC | Spring, TX | - | - | - | Oct 2025 | $6.31M | $2.22M | |
| Twin Cities Hydro LLC | Independent Power Producer | 1 | 97.0 GWh | Dec 2024 | - | |||
| Twin Buttes Wind LLC | Portland, OR | - | - | - | Sep 2025 | $2.90M | ||
| Twin Buttes Wind II LLC | Portland, OR | - | - | - | Sep 2025 | $1.96M | ||
| Twiggs County Solar, LLC | New York, NY | - | - | - | Sep 2025 | $3.08M | ||
| Tweite Community Solar LLC | Annapolis, MD | Independent Power Producer | 1 | 1.8 GWh | Dec 2024 | - | ||
| TWE Bowman Solar Project, LLC | Asheville, NC | Independent Power Producer | 1 | 149.4 GWh | Dec 2025 | Sep 2025 | $1.64M | |
| Tuscola Wind II LLC | Juno Beach, FL | Independent Power Producer | 1 | 331.0 GWh | Dec 2025 | Sep 2025 | $3.59M | |
| Tuscola Bay Wind LLC | Juno Beach, FL | Independent Power Producer | 1 | 402.7 GWh | Dec 2025 | Sep 2025 | $5.47M | |
| Turtle Creek Wind Farm LLC | Houston, TX | Independent Power Producer | 1 | 783.1 GWh | Dec 2025 | Oct 2025 | $5.46M | |
| Turquoise Nevada LLC | Montpelier, VT | - | - | - | Sep 2025 | $1.12M | ||
| Turlock Irrigation District | Turlock, CA | Political Subdivision | 12 | 2.8 TWh | Dec 2025 | Oct 2025 | $23.17M | |
| Tunica Windpower LLC | Louisville, CO | - | - | - | Sep 2025 | $2.08M | ||
| Tungsten Mountain | Fallon, NV | Independent Power Producer | 1 | 308.4 GWh | Dec 2025 | - | ||
| Tumbleweed Energy Storage, LLC | Walnut Creek, CA | Independent Power Producer | 1 | -26.9 GWh | Dec 2025 | Sep 2025 | $4.43M | |
| Tulsa LFG LLC | Independent Power Producer | 1 | 18.7 GWh | Dec 2024 | - | |||
| TULE Wind LLC | Portland, OR | - | - | - | Sep 2025 | $6.14M | ||
| Tulare Solar Center, LLC | Reno, NV | Independent Power Producer | 1 | 141.9 GWh | Dec 2025 | Sep 2025 | $1.11M | |
| Tucson Electric Power Co | Tucson, AZ | Investor-Owned Utility | 13 | 9.0 TWh | Dec 2025 | Oct 2025 | $61.93M | $38.77M |
| Tuana Springs Energy, LLC | Baltimore, MD | Independent Power Producer | 1 | 30.9 GWh | Dec 2025 | Sep 2025 | $616.81k |
Top Power Plants in United States
| Plant | Location | Annual Generation | Initial Operation Date | Last Update | Fuel Types |
|---|---|---|---|---|---|
| Arkansas Nuclear One | Russellville, Arkansas | 15 TWh | Nov 1974 | Dec 2025 | Nuclear |
| Barry | Bucks, Alabama | 12 TWh | Jan 1954 | Dec 2025 | Natural Gas : 94.9% Bituminous Coal : 5.1% |
| Beaver Valley | Shippingport, Pennsylvania | 15 TWh | Aug 1976 | Dec 2025 | Nuclear |
| Bowen | Cartersville, Georgia | 12 TWh | Sep 1971 | Dec 2025 | Bituminous Coal : 99.8% |
| Braidwood Generation Station | Braceville, Illinois | 20 TWh | Jun 1988 | Dec 2025 | Nuclear |
| Browns Ferry | Decatur, Alabama | 30 TWh | Jul 1974 | Dec 2025 | Nuclear |
| Brunswick Nuclear | Southport, North Carolina | 16 TWh | Oct 1975 | Dec 2025 | Nuclear |
| Byron Generating Station | Byron, Illinois | 20 TWh | Aug 1985 | Dec 2025 | Nuclear |
| Calvert Cliffs Nuclear Power Plant | Lusby, Maryland | 15 TWh | Apr 1975 | Dec 2025 | Nuclear |
| Catawba | York, South Carolina | 19 TWh | May 1985 | Dec 2025 | Nuclear |
| Comanche Peak | Glen Rose, Texas | 20 TWh | Jul 1990 | Dec 2025 | Nuclear |
| Crystal River | Crystal River, Florida | 15 TWh | Sep 1966 | Dec 2025 | Natural Gas : 74.9% Bituminous Coal : 24.9% |
| Diablo Canyon | Avila Beach, California | 18 TWh | Apr 1985 | Dec 2025 | Nuclear |
| Donald C Cook | Bridgman, Michigan | 18 TWh | Jul 1975 | Dec 2025 | Nuclear |
| Dresden Generating Station | Morris, Illinois | 15 TWh | Jul 1970 | Dec 2025 | Nuclear |
| Edwin I Hatch | Baxley, Georgia | 14 TWh | Nov 1975 | Dec 2025 | Nuclear |
| Gavin Power, LLC | Cheshire, Ohio | 13 TWh | Sep 1974 | Dec 2025 | Bituminous Coal : 99.5% Distillate Fuel Oil : 0.5% |
| Grand Coulee | Grand Coulee, Washington | 16 TWh | Feb 1941 | Dec 2025 | Water |
| Grand Gulf | Port Gibson, Mississippi | 11 TWh | Jun 1985 | Dec 2025 | Nuclear |
| H Allen Franklin Combined Cycle | Smiths, Alabama | 12 TWh | May 2002 | Dec 2025 | Natural Gas |
| Hines Energy Complex | Bartow, Florida | 12 TWh | Mar 1999 | Dec 2025 | Natural Gas |
| Jack McDonough | Smyrna, Georgia | 17 TWh | Apr 1971 | Dec 2025 | Natural Gas |
| James H Miller Jr | Quinton, Alabama | 19 TWh | Sep 1978 | Dec 2025 | Subbituminous Coal : 99.2% Natural Gas : 0.8% |
| Joseph M Farley | Columbia, Alabama | 13 TWh | Nov 1977 | Dec 2025 | Nuclear |
| Labadie | Labadie, Missouri | 17 TWh | May 1970 | Dec 2025 | Subbituminous Coal : 99.9% |
| LaSalle Generating Station | Marseilles, Illinois | 19 TWh | Dec 1983 | Dec 2025 | Nuclear |
| Limerick | Sanatoga, Pennsylvania | 19 TWh | Jan 1986 | Dec 2025 | Nuclear |
| McGuire | Huntersville, North Carolina | 20 TWh | Aug 1981 | Dec 2025 | Nuclear |
| Millstone | Waterford, Connecticut | 17 TWh | Nov 1975 | Dec 2025 | Nuclear |
| Monroe (MI) | Monroe, Michigan | 16 TWh | Oct 1969 | Dec 2025 | Subbituminous Coal : 74.7% Bituminous Coal : 16.0% Petroleum Coke : 9.1% |
| Nine Mile Point Nuclear Station | Lycoming, New York | 16 TWh | Nov 1969 | Dec 2025 | Nuclear |
| North Anna | Mineral, Virginia | 15 TWh | May 1978 | Dec 2025 | Nuclear |
| Oconee | Seneca, South Carolina | 22 TWh | Jun 1973 | Dec 2025 | Nuclear |
| Okeechobee Clean Energy Center | Okeechobee, Florida | 12 TWh | Feb 2019 | Dec 2025 | Natural Gas |
| Palo Verde | Wintersburg, Arizona | 31 TWh | Dec 1985 | Dec 2025 | Nuclear |
| Peach Bottom | Delta, Pennsylvania | 22 TWh | Jun 1974 | Dec 2025 | Nuclear |
| Prairie State Generating Station | Marissa, Illinois | 12 TWh | May 2012 | Dec 2025 | Bituminous Coal : 99.8% |
| PSEG Salem Generating Station | Hancocks Bridge, New Jersey | 19 TWh | May 1971 | Dec 2025 | Nuclear |
| Quad Cities Generating Station | Cordova, Illinois | 15 TWh | Nov 1972 | Dec 2025 | Nuclear |
| Robert Moses Niagara | Lewiston, New York | 14 TWh | Dec 1960 | Dec 2025 | Water |
| Sequoyah | Soddy Daisy, Tennessee | 13 TWh | Jun 1981 | Dec 2025 | Nuclear |
| South Texas Project | Wadsworth, Texas | 22 TWh | Jul 1988 | Dec 2025 | Nuclear |
| St Lucie | Jensen Beach, Florida | 16 TWh | Apr 1976 | Dec 2025 | Nuclear |
| Surry | Surry, Virginia | 13 TWh | Nov 1972 | Dec 2025 | Nuclear |
| TalenEnergy Susquehanna | Berwick, Pennsylvania | 19 TWh | May 1983 | Dec 2025 | Nuclear |
| Turkey Point | Homestead, Florida | 21 TWh | Mar 1967 | Dec 2025 | Nuclear : 68.7% Natural Gas : 31.3% |
| Vogtle | Waynesboro, Georgia | 37 TWh | Apr 1987 | Dec 2025 | Nuclear |
| W A Parish | Thompsons, Texas | 16 TWh | May 1958 | Dec 2025 | Subbituminous Coal : 83.3% Natural Gas : 16.7% |
| Watts Bar Nuclear Plant | Spring City, Tennessee | 16 TWh | Apr 1996 | Dec 2025 | Nuclear |
| West County Energy Center | Loxahatchee, Florida | 19 TWh | Jul 2009 | Dec 2025 | Natural Gas : 99.9% |