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 |
|---|---|---|---|---|---|---|---|---|
| MP2 Energy Ne LLC | Houston, TX | - | - | - | Oct 2025 | $73.41M | $818.53M | |
| Morgan Stanley Capital Group Inc. | New York, NY | - | - | - | Oct 2025 | $707.63M | $202.27M | |
| Mercuria Energy America, LLC | Houston, TX | - | - | - | Oct 2025 | $337.45M | $107.26M | |
| Macquarie Energy Trading LLC | Houston, TX | - | - | - | Oct 2025 | $341.93M | $102.63M | |
| Massachusetts Electric Co | Brooklyn, NY | Investor-Owned Utility | 3 | 3.9 GWh | Dec 2025 | Oct 2025 | $29.93M | $75.60M |
| Modesto Irrigation District | Modesto, CA | Political Subdivision | 5 | 310.2 GWh | May 2026 | Oct 2025 | $47.02M | |
| Morgan Stanley Energy Structuring, L.L.C. | New York, NY | - | - | - | Sep 2025 | $85.04M | $38.19M | |
| Minnkota Power Coop, Inc | Grand Forks, ND | Cooperative | 3 | 4.2 TWh | May 2026 | Oct 2025 | $19.00M | $33.38M |
| Merrill Lynch Commodities, Inc. | Houston, TX | - | - | - | Oct 2025 | $40.48M | $24.54M | |
| Michigan Public Power Agency | Lansing, MI | Political Subdivision | 1 | 58.4 GWh | Dec 2025 | Oct 2025 | $22.86M | |
| Municipal Electric Authority Of Georgia | Atlanta, GA | - | - | - | Oct 2025 | $103.63M | $21.21M | |
| Microsoft Energy LLC | Redmond, WA | - | - | - | Oct 2025 | $1.20M | $20.97M | |
| Marco DM Holdings, L.L.C. | Houston, TX | - | - | - | Jun 2025 | $14.46M | $14.46M | |
| Midamerican Energy Co | Urbandale, IA | Investor-Owned Utility | 62 | 42.6 TWh | May 2026 | Oct 2025 | $297.24M | $13.35M |
| Missouri Joint Municipal Electric Utility Commission | Columbia, MO | - | - | - | Oct 2025 | $46.71M | $10.83M | |
| Midwest Energy Inc - (KS) | Hays, KS | Cooperative | 6 | 91.0 GWh | May 2026 | Sep 2025 | $9.94M | |
| Minnesota Municipal Power AGNY | Minneapolis, MN | Political Subdivision | 4 | 1.1 TWh | Dec 2025 | Oct 2025 | $7.62M | |
| Montana-Dakota Utilities Co | Bismarck, ND | Investor-Owned Utility | 12 | 900.2 GWh | May 2026 | Oct 2025 | $12.67M | $7.54M |
| Matep LLC | Boston, MA | Commercial | 1 | 348.9 GWh | Dec 2024 | Sep 2025 | $8.95M | $5.44M |
| Missouri Basin MUNI Power AGNY | Sioux Falls, SD | Political Subdivision | 1 | 2.1 GWh | Dec 2025 | Oct 2025 | $4.93M | |
| Mississippi Power Co | Gulfport, MS | Investor-Owned Utility | 8 | 19.3 TWh | May 2026 | Sep 2025 | $65.80M | $4.58M |
| MRP Pacifica Marketing LLC | San Diego, CA | - | - | - | Sep 2025 | $884.96k | $3.03M | |
| Mesquite Power LLC | Arlington, AZ | Independent Power Producer | 1 | 4.1 TWh | May 2026 | Oct 2025 | $4.01M | $1.65M |
| McFarland Solar A, LLC | Louisville, CO | - | - | - | Sep 2025 | $2.62M | $1.26M | |
| Merced Irrigation District | Merced, CA | Political Subdivision | 6 | 286.9 GWh | Dec 2025 | Oct 2025 | $1.24M | |
| Monongahela Power Co | Greensburg, PA | Investor-Owned Utility | 10 | 18.1 TWh | May 2026 | Oct 2025 | $290.81M | $995.94k |
| Madison Gas & Electric Co | Madison, WI | Investor-Owned Utility | 20 | 939.1 GWh | May 2026 | Oct 2025 | $31.93M | $919.38k |
| Midlands Lessee LLC | Austin, TX | - | - | - | Sep 2025 | $1.56M | $741.06k | |
| Midland Cogeneration Venture | Midland, MI | Independent Power Producer | 1 | 10.7 TWh | May 2026 | Oct 2025 | $202.10M | $504.75k |
| Montague Wind Power Facility, LLC | Portland, OR | - | - | - | Sep 2025 | $7.00M | $460.64k | |
| Midwest Generations Eme LLC | Chicago, IL | Independent Power Producer | 13 | 3.7 TWh | May 2026 | Oct 2025 | $44.96M | $363.42k |
| Mirabito Power & Gas, LLC | Binghamton, NY | - | - | - | Oct 2025 | $134.11k | $356.39k | |
| Mitsui & Co. Energy Marketing And Services (USA), Inc | Houston, TX | - | - | - | Sep 2025 | $917.46k | $264.82k | |
| MPH Rockaway Peakers, LLC | Bethesda, MD | - | - | - | Oct 2025 | $796.35k | $113.58k | |
| Milford Wind Corridor Phase I LLC | Boston, MA | Independent Power Producer | - | - | Dec 2011 | Sep 2025 | $2.44M | $34.09k |
| Milford Wind Corridor Phase II, LLC | Boston, MA | - | - | - | Sep 2025 | $2.05M | $18.54k | |
| Ma CS Dighton, LLC | New York, NY | Independent Power Producer | 1 | 6.1 GWh | Dec 2025 | - | ||
| Ma CS Uxbridge, LLC | San Francisco, CA | Independent Power Producer | 1 | 6.8 GWh | Dec 2025 | - | ||
| Ma CS Ware West, LLC | San Francisco, CA | Independent Power Producer | 1 | 2.5 GWh | Dec 2024 | - | ||
| MAAS Energy Works | Redding, CA | Independent Power Producer | 7 | 4.3 GWh | Dec 2025 | - | ||
| Macadamia Nut Road Solar Project 2019 | Schenectady, NY | Independent Power Producer | 1 | 1.4 GWh | Dec 2024 | - | ||
| Macbeth Solar, LLC | Wilmington, DE | Independent Power Producer | 1 | 38.2 GWh | Dec 2025 | - | ||
| Macho Springs Solar, LLC | Birmingham, AL | - | - | - | Sep 2025 | $2.31M | ||
| Macys Corporate Services, Inc | Johns Creek, GA | Commercial | 1 | 3.1 GWh | Dec 2024 | - | ||
| Madera-Chowchilla Power AUTH | Madera, CA | Independent Power Producer | 1 | 1.0 GWh | Jun 2025 | - | ||
| Madera DP 2, LLC | Valencia, CA | Independent Power Producer | 1 | 12.6 GWh | Dec 2025 | - | ||
| Madison BTM, LLC | Wakefield, MA | - | - | - | Sep 2025 | $15.71k | ||
| Madison Energy Holdings LLC | Tysons, VA | Independent Power Producer | 52 | 181.3 GWh | Dec 2025 | - | ||
| Madison Energy Investments LLC | Vienna, VA | Independent Power Producer | 88 | 64.2 GWh | May 2026 | - | ||
| Madison Ess, LLC | Wakefield, MA | - | - | - | Sep 2025 | $291.38k | ||
| Madison Fields Solar Project, LLC | Kansas City, MO | Independent Power Producer | 1 | 439.6 GWh | May 2026 | Oct 2025 | $5.69M | |
| Magdaline Solar, LLC | Jersey City, NJ | Independent Power Producer | 1 | 4.1 GWh | Dec 2025 | - | ||
| Magnolia Power Holdings LLC | Princeton, NJ | Independent Power Producer | 1 | 1.9 TWh | May 2026 | - | ||
| Magruder Solar, LLC | Westport, CT | Independent Power Producer | 1 | 335.0 MWh | Dec 2025 | - | ||
| Mahipapa LLC | Honolulu, HI | Independent Power Producer | 1 | 29.1 GWh | Dec 2025 | - | ||
| Mahoning Creek Hydroelectric Company LLC | Chevy Chase, MD | Independent Power Producer | - | - | Dec 2020 | Oct 2025 | $271.89k | |
| Maine DG Solar Augusta, LLC | Boston, MA | Independent Power Producer | 1 | 5.0 GWh | Dec 2025 | - | ||
| Maine DG Solar Baldwin, LLC | Boston, MA | Independent Power Producer | 1 | 10.0 GWh | Dec 2025 | - | ||
| Maine DG Solar Harmony, LLC | Boston, MA | Independent Power Producer | 1 | 9.3 GWh | Dec 2025 | - | ||
| Maine DG Solar Monmouth, LLC | Boston, MA | Independent Power Producer | 1 | 9.8 GWh | Dec 2025 | - | ||
| Maine DG Solar Pittsfield, LLC | Boston, MA | Independent Power Producer | 1 | 8.7 GWh | Dec 2025 | - | ||
| Maine Waste To Energy | Auburn, ME | Municipally-Owned Utility | 1 | 8.8 GWh | May 2026 | - | ||
| Major Energy Electric Services, LLC | Houston, TX | - | - | - | Oct 2025 | $421.57k | ||
| Major Oak Power, LLC | Bremond, TX | Independent Power Producer | 1 | 2.4 TWh | May 2026 | - | ||
| Malacha Hydro Ltd Partnership | Marlborough, MA | Independent Power Producer | 1 | 89.8 GWh | Dec 2025 | Sep 2025 | $2.24M | |
| Malaga Bess LLC | Chicago, IL | Independent Power Producer | 1 | -4.6 GWh | May 2026 | Oct 2025 | $527.40k | |
| Malaga Power, LLC | San Diego, CA | - | - | - | Oct 2025 | $4.25M | ||
| Mammoth North, LLC | Philadelphia, PA | Independent Power Producer | 1 | 837.7 GWh | May 2026 | Oct 2025 | $10.42M | |
| Mammoth One LLC | Reno, NV | - | - | - | Sep 2025 | $2.45M | ||
| Mammoth Plains Wind Project | Juno Beach, FL | Independent Power Producer | 1 | 667.9 GWh | Dec 2025 | Sep 2025 | $1.59M | |
| Mammoth Three LLC | Reno, NV | - | - | - | Sep 2025 | $1.30M | ||
| Manchester Street, LLC. | Providence, RI | Independent Power Producer | 1 | 2.3 TWh | May 2026 | Sep 2025 | $28.13M | |
| Manitowoc Public Utilities | Manitowoc, WI | Municipally-Owned Utility | 2 | 197.0 GWh | May 2026 | Apr 2024 | ||
| Mankato Energy Center II, LLC | Denver, CO | - | - | - | Sep 2025 | $8.68M | ||
| Mankato Energy Center, LLC | Denver, CO | - | - | - | Sep 2025 | $11.95M | ||
| Mantisi Solar LLC | New York, NY | Independent Power Producer | 1 | 9.5 GWh | Dec 2025 | - | ||
| Manville Hill Road Solar LLC | Cumberland, RI | Independent Power Producer | 1 | 6.7 GWh | Dec 2025 | - | ||
| Manzana Wind LLC | Portland, OR | - | - | - | Sep 2025 | $15.52M | ||
| Maple Flats Solar Energy Center LLC | Ashwaubenon, WI | - | - | - | Sep 2025 | $6.22M | ||
| Maple Street Solar 1, LLC | San Francisco, CA | Independent Power Producer | 1 | 7.2 GWh | Dec 2024 | - | ||
| Mapleton Community Solar | Scottsdale, AZ | Independent Power Producer | 1 | 5.3 GWh | Dec 2025 | - | ||
| Marble River, LLC | Houston, TX | Independent Power Producer | 1 | 500.6 GWh | May 2026 | Oct 2025 | $3.60M | |
| Marbury Point Solar LLC | Framingham, MA | Independent Power Producer | 1 | 5.0 GWh | Dec 2025 | - | ||
| Marco Power Inc | Twin Falls, ID | Independent Power Producer | 1 | 2.2 GWh | Oct 2025 | - | ||
| Marcus Hook Energy LP | Marcus Hook, PA | Independent Power Producer | 1 | 6.0 TWh | May 2026 | Oct 2025 | $54.07M | |
| Marengo Battery Storage LLC | Marengo TWP, IL | Commercial | 1 | - | Mar 2025 | Sep 2025 | $2.48 | |
| Maricopa West Solar PV, LLC | San Francisco, CA | Independent Power Producer | - | - | - | Sep 2025 | $968.50k | |
| Marie's Way Solar I, LLC | New York, NY | Independent Power Producer | 1 | 6.8 GWh | Dec 2025 | - | ||
| Marina Energy LLC | Folsom, NJ | Independent Power Producer | 3 | 11.3 GWh | Dec 2025 | May 2022 | ||
| Marion County Solar Project, LLC | Kansas City, MO | Independent Power Producer | 1 | 50.2 GWh | May 2026 | - | ||
| Marion Solar LLC | New York, NY | Independent Power Producer | 2 | 7.3 GWh | Dec 2025 | - | ||
| Marion Wind 23, LLC | Findlay, OH | Industrial | 1 | 6.5 GWh | Dec 2024 | - | ||
| Mariposa Energy, LLC | LOS Angeles, CA | - | - | - | Oct 2025 | $4.70M | ||
| Markum Solar Farm, LLC | Valley Mills, TX | Independent Power Producer | 1 | 401.0 GWh | May 2026 | - | ||
| Marlboro Mushroom | West Grove, PA | Commercial | 1 | 1.4 GWh | Dec 2025 | - | ||
| Marlborough Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.4 GWh | Dec 2025 | - | ||
| Marlow Solar, LLC | Safety Harbor, FL | Independent Power Producer | 1 | 4.4 GWh | Dec 2025 | - | ||
| Marquam Creek Solar, LLC | New York, NY | Independent Power Producer | 1 | 2.4 GWh | Oct 2025 | - | ||
| Mars Hill Road Solar Farm, LLC | New York, NY | Independent Power Producer | 1 | 4.1 GWh | Dec 2025 | - | ||
| Mars Wrigley Confectionery US, LLC | Hackettstown, NJ | Commercial | 1 | 58.1 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 |