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 |
|---|---|---|---|---|---|---|---|---|
| Massachusetts Bay Trans AUTH | Jamaica Plain, MA | State-Owned Utility | 1 | 469.9 MWh | Dec 2025 | - | ||
| Massachusetts Department Of Correction | Bridgewater, MA | State-Owned Utility | 1 | 1.3 GWh | Dec 2025 | - | ||
| Massachusetts Electric Co | Brooklyn, NY | Investor-Owned Utility | 3 | 3.9 GWh | Dec 2025 | Oct 2025 | $29.93M | $75.60M |
| Massachusetts Inst Of Tech | Cambridge, MA | Commercial | 1 | 227.6 GWh | Dec 2025 | - | ||
| Massachusetts Mun Wholes Electric Co | Ludlow, MA | Political Subdivision | 6 | 169.5 GWh | May 2026 | - | ||
| Massachusetts Water Res AUTH | Boston, MA | State-Owned Utility | 3 | 2.1 GWh | Dec 2025 | - | ||
| Massachusetts WTR Rauth-Deer I | Winthrop, MA | Political Subdivision | 1 | 36.0 GWh | May 2026 | - | ||
| Masser Farms Realty Ltd | Sacramento, PA | Independent Power Producer | 1 | 1.2 GWh | Dec 2024 | - | ||
| Masspower | Indian Orchard, MA | Independent Power Producer | 1 | 471.0 GWh | Dec 2025 | Sep 2025 | $6.72M | |
| Maston Garden LLC | Kasson, MN | Independent Power Producer | 1 | 1.8 GWh | Dec 2025 | - | ||
| Matanuska Electric Assn Inc | Palmer, AK | Cooperative | 1 | 356.5 GWh | Dec 2025 | - | ||
| Matep LLC | Boston, MA | Commercial | 1 | 348.9 GWh | Dec 2024 | Sep 2025 | $8.95M | $5.44M |
| Materials Innovation Recycling Authority | Rocky Hill, CT | Political Subdivision | 1 | 1.2 GWh | Dec 2024 | - | ||
| MAUI Electric Co Ltd | Kahului - MAUI, HI | Investor-Owned Utility | 6 | 917.8 GWh | May 2026 | - | ||
| Maven Energy, LLC | Birmingham, AL | - | - | - | Sep 2025 | $16.50k | ||
| Maverick CTY Water Control & Improvement | Eagle Pass, TX | Political Subdivision | 1 | 5.9 GWh | Feb 2026 | - | ||
| Maverick Solar 4, LLC | San Diego, CA | Independent Power Producer | 1 | 324.1 GWh | May 2026 | Oct 2025 | $3.96M | |
| Maverick Solar 6, LLC | San Diego, CA | Independent Power Producer | 1 | 276.3 GWh | May 2026 | Oct 2025 | $3.61M | |
| Maverick Solar 7, LLC | San Diego, CA | Independent Power Producer | 1 | 441.2 GWh | May 2026 | Oct 2025 | $3.10M | |
| Maverick Solar LLC | San Diego, CA | Independent Power Producer | 2 | 369.5 GWh | May 2026 | Oct 2025 | $3.87M | |
| Maxsolar | Edison, NJ | Independent Power Producer | 1 | 4.0 GWh | Dec 2025 | - | ||
| May Shannon Solar, LLC | Wilmington, DE | Independent Power Producer | 1 | 4.2 GWh | Dec 2025 | - | ||
| Mayflower Power & Gas LLC | Birmingham, AL | - | - | - | Sep 2025 | $25.22k | ||
| Mayor And City Council Of Baltimore City - (MD) | Baltimore, MD | Municipally-Owned Utility | 1 | 635.0 MWh | Dec 2024 | - | ||
| MC Power Companies Inc | Lee's Summit, MO | Independent Power Producer | 3 | 21.2 GWh | May 2026 | - | ||
| MC Project Company LLC | Houston, TX | - | - | - | Oct 2025 | $45.56M | ||
| MC1 Solar Farm, LLC | Williamston, NC | Independent Power Producer | 1 | 8.2 GWh | Dec 2025 | - | ||
| MC6 Hydro Facility | Ivins, UT | Independent Power Producer | 1 | 6.5 GWh | Oct 2025 | - | ||
| McCallum Enterprises I LP | Stratford, CT | Independent Power Producer | 1 | 25.3 GWh | Dec 2025 | - | ||
| McCormick Ny CSG LLC | Annapolis, MD | Independent Power Producer | 1 | 4.0 GWh | Dec 2025 | - | ||
| McCoy Solar, LLC | Juno Beach, FL | Independent Power Producer | 1 | 671.7 GWh | Dec 2025 | Sep 2025 | $27.30M | |
| McCrae Wind Energy II, LLC | Pittsburgh, PA | Independent Power Producer | 1 | 421.5 GWh | May 2026 | - | ||
| McDonough Solar 1, LLC | Safety Harbor, FL | Independent Power Producer | 1 | 4.0 GWh | Dec 2025 | - | ||
| McFarland Solar A, LLC | Louisville, CO | - | - | - | Sep 2025 | $2.62M | $1.26M | |
| McFarland Solar B, LLC | Louisville, CO | - | - | - | Sep 2025 | $3.76M | ||
| McFarland Storage C, LLC | Louisville, CO | - | - | - | Sep 2025 | $2.29M | ||
| McGrath Light & Power Co | McGrath, AK | Investor-Owned Utility | 1 | 2.0 GWh | Dec 2025 | - | ||
| McHenry Battery Storage | Toronto, ON | Independent Power Producer | 1 | -4.8 GWh | Dec 2025 | Sep 2025 | $1.65M | |
| McKinley Paper | Port Angeles, WA | Industrial | 2 | 337.6 GWh | Dec 2025 | - | ||
| McKittrick Limited | Bakersfield, CA | Independent Power Producer | - | - | Dec 2015 | Sep 2025 | $1.58M | |
| McMinnville Electric System | McMinnville, TN | Municipally-Owned Utility | 1 | 883.9 MWh | Dec 2025 | - | ||
| MD CDG 001 LLC | West Trenton, NJ | Independent Power Producer | 1 | 2.3 GWh | Dec 2025 | - | ||
| MD CDG 002 LLC | West Trenton, NJ | Independent Power Producer | 1 | 2.3 GWh | Dec 2025 | - | ||
| Me CDG 004 LLC | Augusta, ME | Independent Power Producer | 1 | 3.0 GWh | Dec 2025 | - | ||
| Me CDG 005 LLC | Augusta, ME | Independent Power Producer | 1 | 2.8 GWh | Dec 2025 | - | ||
| Me Fort Fairfield LLC | Houston, TX | Independent Power Producer | 1 | 3.8 GWh | Dec 2025 | - | ||
| Me Sandy River LLC | Houston, TX | Independent Power Producer | 1 | 5.5 GWh | Dec 2025 | - | ||
| Mead Coated Board Inc | Glen Allen, VA | Industrial | 1 | 786.2 GWh | May 2026 | - | ||
| Mead Energy Storage LLC | Longmont, CO | Independent Power Producer | 1 | -1.1 GWh | Dec 2025 | Oct 2025 | $392.37k | |
| Meadow Lake Solar Park | Merrillville, IN | Investor-Owned Utility | 1 | 426.8 GWh | May 2026 | Sep 2025 | $3.80M | |
| Meadow Lake Wind Farm II LLC | Houston, TX | Independent Power Producer | 1 | 260.7 GWh | Dec 2025 | Oct 2025 | $2.58M | |
| Meadow Lake Wind Farm III LLC | Houston, TX | Independent Power Producer | 1 | 288.1 GWh | Dec 2025 | Oct 2025 | $2.67M | |
| Meadow Lake Wind Farm IV LLC | Houston, TX | Independent Power Producer | 1 | 126.1 GWh | Dec 2025 | Oct 2025 | $963.38k | |
| Meadow Lake Wind Farm LLC | Houston, TX | Independent Power Producer | 1 | 482.1 GWh | Dec 2025 | Oct 2025 | $4.25M | |
| Meadow Lake Wind Farm V LLC | Houston, TX | Independent Power Producer | 1 | 373.3 GWh | May 2026 | Oct 2025 | $6.45M | |
| Meadow Lake Wind Farm VI LLC | Chalmers, IN | Independent Power Producer | 1 | 709.3 GWh | May 2026 | Oct 2025 | $9.89M | |
| Meadow Ridge Wind Energy, LLC | Greenfield, IA | Independent Power Producer | 1 | 2.8 GWh | Dec 2025 | - | ||
| Meadowlark Solar, LLC | Miami, FL | Independent Power Producer | 1 | 9.9 GWh | Dec 2025 | - | ||
| Meadowlark Wind I LLC | Edmonton, AB | Independent Power Producer | 1 | 400.6 GWh | May 2026 | Oct 2025 | $1.94M | |
| MEC Holdings LLC | Independent Power Producer | 1 | 2.8 TWh | Dec 2025 | - | |||
| Mechanicsville Solar, LLC | Westport, CT | Independent Power Producer | 1 | 65.2 GWh | May 2026 | Oct 2025 | $867.24k | |
| Mechanicville Hydroelectric Station | Mechanicville, NY | Independent Power Producer | - | 24.4 GWh | Dec 2024 | - | ||
| Mecklenburg Solar, LLC | Annapolis, MD | Independent Power Producer | 1 | 2.4 GWh | Dec 2025 | - | ||
| Median Energy Corp. | Brooklyn, NY | - | - | - | Sep 2025 | $4.53k | ||
| Medin 2 Community Solar LLC | Schenectady, MD | Independent Power Producer | 1 | 1.7 GWh | Dec 2025 | - | ||
| Medusa Ny 1, LLC | Louisville, CO | Independent Power Producer | 1 | 2.1 GWh | Dec 2025 | - | ||
| Medway Grid LLC | Independent Power Producer | 1 | 19.5 GWh | May 2026 | - | |||
| MEGA Renewables | Bozeman, MT | Independent Power Producer | 2 | 34.2 GWh | Dec 2025 | - | ||
| Mehoopany Wind Energy LLC | Houston, TX | - | - | - | Sep 2025 | $5.85M | ||
| Mendocino Forest Products | Windsor, CA | Commercial | 1 | 128.7 GWh | May 2026 | - | ||
| Mendota Hills, LLC | Dallas, TX | - | - | - | Oct 2025 | $1.24M | ||
| Mendota US Solar 1 LLC | Jersey City, NJ | Independent Power Producer | 1 | 3.4 GWh | Dec 2025 | - | ||
| Merced Irrigation District | Merced, CA | Political Subdivision | 6 | 286.9 GWh | Dec 2025 | Oct 2025 | $1.24M | |
| Merck & Co Inc-West Point | Rahway, NJ | |Industrial | 4 | 341.7 GWh | May 2026 | Sep 2025 | $96.43k | |
| Merck - Upper Gwynedd Solar Array | North Wales, PA | Commercial | 1 | 1.6 GWh | Dec 2025 | - | ||
| Mercuria Energy America, LLC | Houston, TX | - | - | - | Oct 2025 | $337.45M | $107.26M | |
| Merimil Ltd Partnership | Lewiston, ME | Independent Power Producer | 1 | 14.1 GWh | Dec 2025 | - | ||
| Merrill Lynch Commodities, Inc. | Houston, TX | - | - | - | Oct 2025 | $40.48M | $24.54M | |
| Merrimack Solar Farm | Durham, NC | Commercial | 1 | 3.4 GWh | Dec 2025 | - | ||
| Mesa Wind Power LLC | New York, NY | Independent Power Producer | 2 | 80.1 GWh | May 2026 | Sep 2025 | $2.05M | |
| Mesquite Power LLC | Arlington, AZ | Independent Power Producer | 1 | 4.1 TWh | May 2026 | Oct 2025 | $4.01M | $1.65M |
| Mesquite Solar 1, LLC | Tonopah, AZ | - | - | Dec 2017 | Oct 2025 | $17.90M | ||
| Mesquite Solar 2, LLC | Tonopah, AZ | Investor-Owned Utility | - | - | Dec 2017 | Oct 2025 | $5.27M | |
| Mesquite Solar 3, LLC | Tonopah, AZ | Investor-Owned Utility | - | - | Dec 2017 | Oct 2025 | $7.75M | |
| Mesquite Solar 4, LLC | Valhalla, NY | - | - | - | Oct 2025 | $1.72M | ||
| Mesquite Solar 5, LLC | Valhalla, NY | - | - | - | Oct 2025 | $2.23M | ||
| Mesquite Star Special LLC | San Francisco, CA | Independent Power Producer | 1 | 1.3 TWh | May 2026 | - | ||
| Mesquite Wind LLC | Abilene, TX | Independent Power Producer | 2 | 772.5 GWh | May 2026 | - | ||
| Messalonskee Stream Hydro LLC | Penacook, NH | Independent Power Producer | 3 | 16.8 GWh | Dec 2025 | Aug 2014 | ||
| Messer Energy Services, Inc. | Bethlehem, PA | - | - | - | Oct 2025 | $1.90M | ||
| Metcalf Energy Center, LLC | Houston, TX | - | - | - | Oct 2025 | $19.82M | ||
| Metlakatla Power & Light | Metlakatla, AK | Municipally-Owned Utility | 3 | 20.4 GWh | Dec 2025 | - | ||
| Metro WTR RECL DIST GRTR Chi | Chicago, IL | Municipally-Owned Utility | 1 | 17.4 GWh | May 2026 | - | ||
| Metropolitan Airports Commission | Minneapolis, MN | Political Subdivision | 1 | 2.6 GWh | May 2026 | - | ||
| Metropolitan DIST Of Hartford | Hartford, CT | Municipally-Owned Utility | 2 | 4.8 GWh | Oct 2025 | - | ||
| Metropolitan Sewerage District | Asheville, NC | Municipally-Owned Utility | 1 | 5.3 GWh | May 2026 | - | ||
| Metropolitan Water District Of S Ca | LOS Angeles, CA | State-Owned Utility | 17 | 38.4 GWh | Dec 2025 | - | ||
| MEVS Clark LLC | Aliso VIejo, CA | Independent Power Producer | 1 | 6.4 GWh | Dec 2025 | - | ||
| MEVS Dot, LLC | Renton, WA | Independent Power Producer | 1 | 3.7 GWh | Dec 2025 | - | ||
| MEVS LLC | Aliso VIejo, CA | Independent Power Producer | 1 | 3.1 GWh | Dec 2025 | - |
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 |