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 2025Q1 Seller Transactions | FERC 2025Q1 Buyer Transactions |
|---|---|---|---|---|---|---|---|---|
| MAUI Electric Co Ltd | Kahului - MAUI, HI | Investor-Owned Utility | 6 | 870.7 GWh | May 2025 | - | ||
| Materials Innovation Recycling Authority | Rocky Hill, CT | Political Subdivision | 1 | 1.2 GWh | Dec 2024 | - | ||
| Matep LLC | Boston, MA | Commercial | 1 | 369.6 GWh | Dec 2023 | Jun 2025 | $12.51M | $4.72M |
| Matanuska Electric Assn Inc | Palmer, AK | Cooperative | 1 | 632.3 GWh | Dec 2024 | - | ||
| Matador Power Marketing, Inc. | Toronto, ON | - | - | - | Jun 2025 | $376.05k | ||
| Maston Garden LLC | Kasson, MN | Independent Power Producer | 1 | 1.8 GWh | Dec 2024 | - | ||
| Masspower | Indian Orchard, MA | Independent Power Producer | 1 | 610.7 GWh | Dec 2023 | Jun 2025 | $3.76M | |
| Masser Farms Realty Ltd | Sacramento, PA | Independent Power Producer | 1 | 1.2 GWh | Dec 2024 | - | ||
| Massachusetts WTR Rauth-Deer I | Winthrop, MA | Political Subdivision | 1 | 37.4 GWh | May 2025 | - | ||
| Massachusetts Water Res AUTH | Boston, MA | State-Owned Utility | 3 | 3.7 GWh | Dec 2024 | - | ||
| Massachusetts Mun Wholes Electric Co | Ludlow, MA | Political Subdivision | 6 | 85.4 GWh | May 2025 | - | ||
| Massachusetts Inst Of Tech | Cambridge, MA | Commercial | 1 | 223.7 GWh | Dec 2024 | - | ||
| Massachusetts Electric Co | Brooklyn, NY | Investor-Owned Utility | 3 | 3.7 GWh | Dec 2024 | Jul 2025 | $40.82M | $138.13M |
| Massachusetts Department Of Correction | Bridgewater, MA | State-Owned Utility | 1 | 1.9 GWh | Dec 2024 | - | ||
| Massachusetts Bay Trans AUTH | Jamaica Plain, MA | State-Owned Utility | 1 | 479.6 MWh | Dec 2024 | - | ||
| Mass Solar, LLC | The Woodlands, TX | Independent Power Producer | 4 | 20.3 GWh | Dec 2024 | - | ||
| Mas Durham Power, LLC | Nashville, TN | Independent Power Producer | 1 | 7.7 GWh | Dec 2023 | - | ||
| Marysville Hydro Partners | Boise, ID | Independent Power Producer | 1 | 50.7 GWh | Dec 2024 | - | ||
| Maryland Environmental Service | Westover, MD | State-Owned Utility | 1 | 4.9 GWh | May 2025 | - | ||
| Martinsville Onsite Generation, LLC | Columbus, OH | - | - | - | Jun 2025 | $200.53k | ||
| Martinez Refining Co | Martinez, CA | Industrial | 1 | 851.6 GWh | May 2025 | Jan 2025 | $242.87k | |
| Martin County Solar Project, LLC | Houston, TX | Independent Power Producer | 1 | 89.3 GWh | May 2025 | Jul 2025 | $1.39M | |
| Marshall Wind Farm, LLC | Edina, MN | Independent Power Producer | 6 | 29.4 GWh | Dec 2024 | - | ||
| Marshall Wind Energy LLC | De SOTO, IA | Independent Power Producer | - | - | - | Jun 2025 | $3.01M | |
| Marshall Solar, LLC | Juno Beach, FL | - | - | - | Jun 2025 | $1.43M | ||
| Marshall Solar Energy Project | Juno Beach, FL | Independent Power Producer | 2 | 109.9 GWh | May 2025 | - | ||
| Marsh Landing LLC | Antioch, CA | Independent Power Producer | 1 | 118.1 GWh | May 2025 | Jul 2025 | $17.02M | |
| Mars Wrigley Confectionery US, LLC | Hackettstown, NJ | Commercial | 1 | 45.3 GWh | Dec 2024 | - | ||
| Marlow Solar, LLC | Safety Harbor, FL | Independent Power Producer | 1 | 4.5 GWh | Dec 2024 | - | ||
| Marlborough Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.6 GWh | Dec 2024 | - | ||
| Marlboro Mushroom | West Grove, PA | Commercial | 1 | 1.3 GWh | Dec 2024 | - | ||
| Markum Solar Farm, LLC | Valley Mills, TX | Independent Power Producer | 1 | 178.8 GWh | May 2025 | - | ||
| Mariposa Energy, LLC | LOS Angeles, CA | - | - | - | Jul 2025 | $5.20M | ||
| Marion Solar LLC | New York, NY | Independent Power Producer | 2 | 7.6 GWh | Dec 2024 | - | ||
| Marina Energy LLC | Folsom, NJ | Independent Power Producer | 3 | 11.5 GWh | Dec 2024 | May 2022 | ||
| Marie's Way Solar I, LLC | New York, NY | Independent Power Producer | 1 | 6.5 GWh | Dec 2024 | - | ||
| Maricopa West Solar PV, LLC | San Francisco, CA | Independent Power Producer | - | - | - | Jun 2025 | $546.33k | |
| Marengo Battery Storage LLC | Marengo TWP, IL | Commercial | 1 | -548.0 MWh | Mar 2025 | Jun 2025 | $0.40 | |
| Marcus Hook Energy LP | Marcus Hook, PA | Independent Power Producer | 1 | 6.8 TWh | May 2025 | Jul 2025 | $96.77M | |
| Marco Power Inc | Twin Falls, ID | Independent Power Producer | 1 | 2.2 GWh | Oct 2024 | - | ||
| Marco DM Holdings, L.L.C. | Valhalla, NY | - | - | - | Jun 2025 | $10.89M | $10.89M | |
| Marbury Point Solar LLC | Framingham, MA | Independent Power Producer | 1 | 5.8 GWh | Dec 2024 | - | ||
| Marble River, LLC | Houston, TX | Independent Power Producer | 1 | 487.7 GWh | May 2025 | Jul 2025 | $12.34M | |
| Mapleton Community Solar | Scottsdale, AZ | Independent Power Producer | 1 | 5.2 GWh | Dec 2024 | - | ||
| Maple Street Solar 1, LLC | San Francisco, CA | Independent Power Producer | 1 | 5.9 GWh | Dec 2023 | - | ||
| Maple Flats Solar Energy Center LLC | Ashwaubenon, WI | - | - | - | Jun 2025 | $3.32M | ||
| Manzana Wind LLC | Portland, OR | - | - | - | Jun 2025 | $9.72M | ||
| Mantua Creek Solar, LLC | Juno Beach, FL | - | - | - | Jul 2025 | $69.64k | ||
| Mankato Energy Center, LLC | Denver, CO | - | - | - | Jun 2025 | $10.96M | ||
| Mankato Energy Center II, LLC | Denver, CO | - | - | - | Jun 2025 | $8.05M | ||
| Manitowoc Public Utilities | Manitowoc, WI | Municipally-Owned Utility | 2 | 140.9 GWh | May 2025 | Apr 2024 | ||
| Manchester Street, LLC. | Providence, RI | Independent Power Producer | 1 | 1.7 TWh | May 2025 | Jun 2025 | $18.66M | |
| Mammoth Three LLC | Reno, NV | - | - | - | Jun 2025 | $1.18M | ||
| Mammoth Plains Wind Project | Juno Beach, FL | Independent Power Producer | 1 | 790.8 GWh | Dec 2024 | Jun 2025 | $1.98M | |
| Mammoth One LLC | Reno, NV | - | - | - | Jun 2025 | $2.27M | ||
| Mammoth North, LLC | Philadelphia, PA | Independent Power Producer | 1 | 357.7 GWh | May 2025 | Jul 2025 | $5.50M | |
| Malmedal Garden LLC | Minneapolis, MN | Independent Power Producer | 1 | 1.7 GWh | Dec 2024 | - | ||
| Malaga Power, LLC | San Diego, CA | - | - | - | Jul 2025 | $4.29M | ||
| Malaga Bess LLC | Chicago, IL | Independent Power Producer | 1 | -969.0 MWh | May 2025 | Jul 2025 | $63.92k | |
| Malacha Hydro Ltd Partnership | Marlborough, MA | Independent Power Producer | - | - | Dec 2018 | Mar 2025 | $3.43M | |
| Major Oak Power, LLC | Bremond, TX | Independent Power Producer | 1 | 2.4 TWh | May 2025 | - | ||
| Major Energy Electric Services, LLC | Houston, TX | - | - | - | Jul 2025 | $703.89k | ||
| Maine Waste To Energy | Auburn, ME | Municipally-Owned Utility | 1 | 11.0 GWh | May 2025 | - | ||
| Maine DG Solar Pittsfield, LLC | Boston, MA | Independent Power Producer | 1 | 8.7 GWh | Dec 2024 | - | ||
| Maine DG Solar Monmouth, LLC | Boston, MA | Independent Power Producer | 1 | 9.6 GWh | Dec 2024 | - | ||
| Maine DG Solar Harmony, LLC | Boston, MA | Independent Power Producer | 1 | 9.2 GWh | Dec 2024 | - | ||
| Maine DG Solar Baldwin, LLC | Boston, MA | Independent Power Producer | 1 | 10.1 GWh | Dec 2024 | - | ||
| Maine DG Solar Augusta, LLC | Boston, MA | Independent Power Producer | 1 | 4.8 GWh | Dec 2024 | - | ||
| Mahoning Creek Hydroelectric Company LLC | Chevy Chase, MD | Independent Power Producer | - | - | Dec 2020 | Jul 2025 | $318.83k | |
| Mahipapa LLC | Honolulu, HI | Independent Power Producer | 1 | 10.3 GWh | Dec 2024 | - | ||
| Magdaline Solar, LLC | Jersey City, NJ | Independent Power Producer | 1 | 2.9 GWh | Dec 2024 | - | ||
| Mag Energy Solutions Inc. | Montreal, QC | - | - | - | Jul 2025 | $215.51M | $16.40M | |
| Madison Windpower LLC | Houston, TX | Independent Power Producer | 1 | 2.6 GWh | May 2025 | - | ||
| Madison Gas & Electric Co | Madison, WI | Investor-Owned Utility | 17 | 857.7 GWh | May 2025 | Jul 2025 | $35.84M | $1.23M |
| Madison Fields Solar Project, LLC | Kansas City, MO | Independent Power Producer | 1 | 417.8 GWh | May 2025 | Jul 2025 | $3.63M | |
| Madison Ess, LLC | Wakefield, MA | - | - | - | Jun 2025 | $389.41k | ||
| Madison Energy Investments LLC | Vienna, VA | Independent Power Producer | 29 | 63.5 GWh | May 2025 | - | ||
| Madison Energy Holdings LLC | Tysons, VA | Independent Power Producer | 52 | 129.0 GWh | Dec 2024 | - | ||
| Madison BTM, LLC | Wakefield, MA | - | - | - | Jun 2025 | $40.81k | ||
| Madera DP 2, LLC | Valencia, CA | Independent Power Producer | 1 | 12.9 GWh | Dec 2024 | - | ||
| Madera-Chowchilla Power AUTH | Madera, CA | Independent Power Producer | 1 | 2.3 GWh | Jul 2024 | - | ||
| Macys Corporate Services, Inc | Johns Creek, GA | Commercial | 1 | 3.1 GWh | Dec 2024 | - | ||
| Macquarie Energy Trading LLC | Houston, TX | - | - | - | Jul 2025 | $463.55M | $99.24M | |
| Macho Springs Solar, LLC | Birmingham, AL | - | - | - | Jun 2025 | $1.55M | ||
| Macho Springs Power I, LLC | Edmonton, AB | - | - | - | Jul 2025 | $3.48M | ||
| Macbeth Solar, LLC | Santa Monica, CA | Independent Power Producer | 1 | 39.7 GWh | Dec 2024 | - | ||
| MAAS Energy Works | Redding, CA | Independent Power Producer | 4 | 4.3 GWh | Dec 2024 | - | ||
| Ma CS Ware West, LLC | San Francisco, CA | Independent Power Producer | 1 | 2.5 GWh | Dec 2024 | - | ||
| Ma CS Uxbridge, LLC | San Francisco, CA | Independent Power Producer | 1 | 7.6 GWh | Dec 2024 | - | ||
| Ma CS Dighton, LLC | New York, NY | Independent Power Producer | 1 | 2.4 GWh | Dec 2024 | - | ||
| LYRA Community Solar | Scottsdale, AZ | Independent Power Producer | 1 | 4.8 GWh | Dec 2024 | - | ||
| Lyonsdale Hydroelectric Co., Inc. | Houston, TX | Independent Power Producer | 1 | 4.7 GWh | Dec 2024 | - | ||
| Lyons Solar, LLC | Chapel Hill, NC | Independent Power Producer | 1 | 622.0 MWh | Dec 2023 | - | ||
| Lyons Road Solar, LLC | Santa Monica, CA | Independent Power Producer | 1 | 41.4 GWh | Dec 2024 | - | ||
| LWP Lessee, LLC | Phoenix, AZ | - | - | - | Jul 2025 | $8.63M | ||
| Luther College Wind Energy Project LLC | Decorah, IA | Independent Power Producer | 1 | 2.7 GWh | Dec 2024 | - | ||
| Luning Energy LLC | Tahoe VIsta, CA | - | - | - | Jun 2025 | $812.70k | ||
| LUND Hill Solar, LLC | Portland, OR | - | - | - | Jun 2025 | $2.17M | ||
| Luminant Miami Fort | North Bend, OH | Independent Power Producer | 1 | 6.7 TWh | May 2025 | - | ||
| Luminant Generation Company LLC | Irving, TX | |Independent Power Producer | 29 | 51.2 TWh | May 2025 | - |
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 | May 2025 | Nuclear |
| Barry | Bucks, Alabama | 14 TWh | Jan 1954 | May 2025 | Natural Gas : 93.4% Bituminous Coal : 6.6% |
| Beaver Valley | Shippingport, Pennsylvania | 15 TWh | Aug 1976 | May 2025 | Nuclear |
| Bowen | Cartersville, Georgia | 11 TWh | Sep 1971 | May 2025 | Bituminous Coal : 99.8% |
| Braidwood Generation Station | Braceville, Illinois | 20 TWh | Jun 1988 | May 2025 | Nuclear |
| Browns Ferry | Decatur, Alabama | 29 TWh | Jul 1974 | May 2025 | Nuclear |
| Brunswick Nuclear | Southport, North Carolina | 15 TWh | Oct 1975 | May 2025 | Nuclear |
| Byron Generating Station | Byron, Illinois | 19 TWh | Aug 1985 | May 2025 | Nuclear |
| Calvert Cliffs Nuclear Power Plant | Lusby, Maryland | 15 TWh | Apr 1975 | May 2025 | Nuclear |
| Catawba | York, South Carolina | 19 TWh | May 1985 | May 2025 | Nuclear |
| Comanche Peak | Glen Rose, Texas | 19 TWh | Jul 1990 | May 2025 | Nuclear |
| Crystal River | Crystal River, Florida | 15 TWh | Sep 1966 | May 2025 | Natural Gas : 77.9% Bituminous Coal : 21.9% |
| Diablo Canyon | Avila Beach, California | 19 TWh | Apr 1985 | May 2025 | Nuclear |
| Donald C Cook | Bridgman, Michigan | 18 TWh | Jul 1975 | May 2025 | Nuclear |
| Dresden Generating Station | Morris, Illinois | 15 TWh | Jul 1970 | May 2025 | Nuclear |
| Edwin I Hatch | Baxley, Georgia | 14 TWh | Nov 1975 | May 2025 | Nuclear |
| Gavin Power, LLC | Cheshire, Ohio | 12 TWh | Sep 1974 | May 2025 | Bituminous Coal : 99.4% Distillate Fuel Oil : 0.6% |
| Ghent | Ghent, Kentucky | 11 TWh | Jan 1974 | May 2025 | Bituminous Coal : 99.9% |
| Grand Coulee | Grand Coulee, Washington | 16 TWh | Feb 1941 | May 2025 | Water |
| Grand Gulf | Port Gibson, Mississippi | 12 TWh | Jun 1985 | May 2025 | Nuclear |
| Guernsey Power Station | Byesville, Ohio | 11 TWh | Jan 2023 | May 2025 | Natural Gas |
| H Allen Franklin Combined Cycle | Smiths, Alabama | 12 TWh | May 2002 | May 2025 | Natural Gas |
| Hines Energy Complex | Bartow, Florida | 12 TWh | Mar 1999 | May 2025 | Natural Gas |
| Jack McDonough | Smyrna, Georgia | 17 TWh | Apr 1971 | May 2025 | Natural Gas |
| James H Miller Jr | Quinton, Alabama | 18 TWh | Sep 1978 | May 2025 | Subbituminous Coal : 99.1% Natural Gas : 0.9% |
| Joseph M Farley | Columbia, Alabama | 14 TWh | Nov 1977 | May 2025 | Nuclear |
| Labadie | Labadie, Missouri | 15 TWh | May 1970 | May 2025 | Subbituminous Coal : 99.9% |
| LaSalle Generating Station | Marseilles, Illinois | 20 TWh | Dec 1983 | May 2025 | Nuclear |
| Limerick | Sanatoga, Pennsylvania | 19 TWh | Jan 1986 | May 2025 | Nuclear |
| McGuire | Huntersville, North Carolina | 19 TWh | Aug 1981 | May 2025 | Nuclear |
| Millstone | Waterford, Connecticut | 16 TWh | Nov 1975 | May 2025 | Nuclear |
| Monroe (MI) | Monroe, Michigan | 15 TWh | Oct 1969 | May 2025 | Subbituminous Coal : 74.4% Bituminous Coal : 15.9% Petroleum Coke : 9.5% |
| Nine Mile Point Nuclear Station | Lycoming, New York | 16 TWh | Nov 1969 | May 2025 | Nuclear |
| North Anna | Mineral, Virginia | 16 TWh | May 1978 | May 2025 | Nuclear |
| Oconee | Seneca, South Carolina | 22 TWh | Jun 1973 | May 2025 | Nuclear |
| Palo Verde | Wintersburg, Arizona | 32 TWh | Dec 1985 | May 2025 | Nuclear |
| Peach Bottom | Delta, Pennsylvania | 22 TWh | Jun 1974 | May 2025 | Nuclear |
| Prairie State Generating Station | Marissa, Illinois | 11 TWh | May 2012 | May 2025 | Bituminous Coal : 99.8% |
| PSEG Salem Generating Station | Hancocks Bridge, New Jersey | 17 TWh | May 1971 | May 2025 | Nuclear |
| Quad Cities Generating Station | Cordova, Illinois | 15 TWh | Nov 1972 | May 2025 | Nuclear |
| Robert Moses Niagara | Lewiston, New York | 15 TWh | Dec 1960 | May 2025 | Water |
| South Texas Project | Wadsworth, Texas | 21 TWh | Jul 1988 | May 2025 | Nuclear |
| St Lucie | Jensen Beach, Florida | 16 TWh | Apr 1976 | May 2025 | Nuclear |
| Surry | Surry, Virginia | 14 TWh | Nov 1972 | May 2025 | Nuclear |
| TalenEnergy Susquehanna | Berwick, Pennsylvania | 19 TWh | May 1983 | May 2025 | Nuclear |
| Turkey Point | Homestead, Florida | 20 TWh | Mar 1967 | May 2025 | Nuclear : 67.4% Natural Gas : 32.6% |
| Vogtle | Waynesboro, Georgia | 35 TWh | Apr 1987 | May 2025 | Nuclear |
| W A Parish | Thompsons, Texas | 14 TWh | May 1958 | May 2025 | Subbituminous Coal : 83.3% Natural Gas : 16.7% |
| Watts Bar Nuclear Plant | Spring City, Tennessee | 15 TWh | Apr 1996 | May 2025 | Nuclear |
| West County Energy Center | Loxahatchee, Florida | 19 TWh | Jul 2009 | May 2025 | Natural Gas : 99.9% |