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 |
|---|---|---|---|---|---|---|---|---|
| Gwitchyaa ZHEE Utility Co | Fort Yukon, AK | Investor-Owned Utility | 1 | 2.8 GWh | Dec 2023 | - | ||
| GWE Cranberry Solar RT, LLC | Middleborough, MA | Independent Power Producer | 1 | 1.5 GWh | Dec 2024 | - | ||
| GWCC PV Solar Farm | Beltsville, MD | Federally-Owned Utility | 1 | 2.2 GWh | Dec 2024 | - | ||
| Guzman Western Slope LLC | Denver, CO | - | - | - | Sep 2025 | $6.42M | ||
| Guzman Energy, LLC | Denver, CO | - | - | - | Oct 2025 | $46.33M | $13.53M | |
| Gunsight Solar, LLC | Asheville, NC | Independent Power Producer | 1 | 181.4 GWh | Feb 2026 | Sep 2025 | $1.56M | |
| Gundersen Lutheran Biogas I LLC | La Crosse, WI | Independent Power Producer | 1 | 4.7 GWh | Dec 2024 | - | ||
| Gulf Coast Solar Center III, LLC | Scottsdale, AZ | - | - | - | Sep 2025 | $2.01M | ||
| Gulf Coast Solar Center II, LLC | Scottsdale, AZ | - | - | - | Sep 2025 | $1.67M | ||
| Guernsey Power Station LLC | New York, NY | Independent Power Producer | 1 | 12.4 TWh | Feb 2026 | Oct 2025 | $86.92M | |
| Guadalupe Power Partners LP | |Independent Power Producer | 2 | 5.9 TWh | Feb 2026 | - | |||
| Guadalupe Blanco River Authority | Seguin, TX | State-Owned Utility | 7 | 4.8 GWh | Dec 2024 | - | ||
| GSPP Boxborough Littleton, LLC | Safety Harbor, FL | Independent Power Producer | 1 | 6.1 GWh | Dec 2024 | - | ||
| GSP White Lake LLC | Bow, NH | - | - | - | Sep 2025 | $169.51k | ||
| GSP Schiller LLC | Bow, NH | - | - | - | Sep 2025 | $123.46k | ||
| GSP Newington LLC | Bow, NH | - | - | - | Oct 2025 | $11.80M | $1.40M | |
| GSP Merrimack LLC | Bow, NH | - | - | - | Sep 2025 | $2.95M | ||
| GSP Lost Nation LLC | Bow, NH | - | - | - | Sep 2025 | $162.40k | ||
| GSG Wind, LLC | Dallas, TX | - | - | - | Oct 2025 | $1.77M | ||
| GSG 6, LLC | Oakville, ON | - | - | - | Oct 2025 | $1.45M | ||
| Gseone | Houston, TX | Independent Power Producer | 1 | 165.0 GWh | Feb 2026 | - | ||
| GSA Metropolitan Service Center | Washington, DC | Federally-Owned Utility | 1 | 100.7 GWh | Feb 2026 | - | ||
| GRP Te Lessee, LLC | Issaquah, WA | - | - | - | Oct 2025 | $16.61M | ||
| GRP Madison Renewable Energy Facility, LLC | Colbert, GA | Independent Power Producer | 1 | 455.5 GWh | Feb 2026 | - | ||
| GRP Madison, LLC | Colbert, GA | - | - | - | Sep 2025 | $8.27M | ||
| GRP Franklin Renewable Energy Facility, LLC | Carnesville, GA | Independent Power Producer | 1 | 423.7 GWh | Feb 2026 | - | ||
| GRP Franklin, LLC | Carnesville, GA | - | - | - | Sep 2025 | $8.34M | ||
| Groton Wind, LLC | Portland, OR | - | - | - | Sep 2025 | $1.21M | ||
| Groton Station Fuel Cell, LLC | Danbury, CT | Independent Power Producer | 1 | 44.3 GWh | Dec 2024 | Sep 2025 | $483.85k | |
| Groton Fuel Cell 1 LLC | Danbury, CT | Independent Power Producer | 1 | 33.6 GWh | Dec 2024 | - | ||
| Groton Bess 2 LLC | Arlington, VA | Independent Power Producer | 1 | -147.0 MWh | Dec 2024 | Sep 2025 | $28.83k | |
| Groton Bess 1 LLC | Arlington, VA | Independent Power Producer | 1 | -117.0 MWh | Dec 2024 | Sep 2025 | $33.37k | |
| Grizzly Ridge Solar LLC | Hamilton, TX | Independent Power Producer | 1 | 110.1 GWh | Jan 2026 | - | ||
| Grizzly Mountain Ranch | Zenia, CA | Independent Power Producer | 1 | 2.8 GWh | Dec 2024 | - | ||
| Grissom Solar, LLC | Asheville, NC | Independent Power Producer | 1 | 10.6 GWh | Dec 2024 | Sep 2025 | $507.31k | |
| Grimm CSG LLC | Annapolis, MD | Investor-Owned Utility | 1 | 1.9 GWh | Dec 2024 | - | ||
| Grimes County Solar Project, LLC | San Francisco, CA | Independent Power Producer | 1 | 60.2 GWh | Feb 2026 | - | ||
| Griffith Energy LLC | Kingman, AZ | Independent Power Producer | 1 | 4.1 TWh | Feb 2026 | Sep 2025 | $25.28M | $13.33k |
| Griffiss Utility Services Corporation | Rome, NY | - | - | - | Oct 2025 | $118.20k | ||
| Griffin Trail Wind, LLC | San Diego, CA | Independent Power Producer | 1 | 752.5 GWh | Feb 2026 | - | ||
| Griffin Road Solar LLC | Independent Power Producer | 1 | 3.4 GWh | Dec 2024 | - | |||
| Griffin Road Solar 2, LLC | Boston, MA | Independent Power Producer | 1 | 2.4 GWh | Dec 2024 | - | ||
| Grid Power Direct, LLC | Brooklyn, NY | - | - | - | Oct 2025 | $553.32k | $108.95k | |
| Gregory Power Partners LLC | Princeton, NJ | Industrial | 1 | 732.9 GWh | Feb 2026 | - | ||
| Greensville County Solar Project, LLC | Richmond, VA | - | - | - | Oct 2025 | $1.87M | ||
| Greenstone Solar, LLC | New York, NY | Independent Power Producer | 1 | 38.0 GWh | Dec 2024 | - | ||
| Greensburg Wind Farm, LLC | Baltimore, MD | Independent Power Producer | 1 | 12.0 GWh | Dec 2024 | - | ||
| Greenlight Energy Inc. | Birmingham, AL | - | - | - | Oct 2025 | $25.50k | ||
| Greenleaf Energy Unit 2 LLC | Birmingham, AL | - | - | - | Sep 2025 | $18.29k | ||
| Greenleaf Energy LLC | YUBA City, CA | Independent Power Producer | 1 | 38.9 GWh | Feb 2026 | - | ||
| Greenidge Generation Holdings LLC | Dresden, NY | Independent Power Producer | 1 | 730.3 GWh | Dec 2024 | Oct 2025 | $2.84M | |
| Greenfield Wind Power, LLC | San Francisco, CA | Independent Power Producer | 1 | 5.7 GWh | Dec 2024 | - | ||
| Greenbacker Renewable Energy Corporation | New York, NY | Independent Power Producer | 202 | 3.1 TWh | Feb 2026 | - | ||
| Green USA, LLC | Brooklyn, NY | - | - | - | Oct 2025 | $1.39k | ||
| Green Street Power Partners | Stamford, CT | Commercial | 39 | 159.4 GWh | Dec 2024 | - | ||
| Green River Wind Farm Phase 1, LLC | Bloomington, MN | Independent Power Producer | 1 | 538.9 GWh | Feb 2026 | Oct 2025 | $3.33M | |
| Green River Solar, LLC | Juno Beach, FL | Independent Power Producer | 1 | 315.7 GWh | Feb 2026 | Sep 2025 | $3.39M | |
| Green Providence Wind II, LLC | Cranston, RI | Independent Power Producer | 1 | 4.0 GWh | Dec 2024 | - | ||
| Green Providence Wind I, LLC | Cranston, RI | Independent Power Producer | 1 | 1.7 GWh | Dec 2024 | - | ||
| Green Pastures Wind II, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 319.4 GWh | Dec 2024 | - | ||
| Green Pastures Wind I, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 296.4 GWh | Dec 2024 | - | ||
| Green Mountain Power Corp | Colchester, VT | Investor-Owned Utility | 47 | 632.7 GWh | Feb 2026 | Oct 2025 | $8.19M | $48.76M |
| Green Mountain Energy Company | Princeton, NJ | - | - | - | Oct 2025 | $202.88k | ||
| Green Mile Solar, LLC | New York, NY | Independent Power Producer | 1 | 7.2 GWh | Dec 2024 | - | ||
| Green Energy Machine, LLC | Greenfield, IA | Independent Power Producer | 1 | 7.3 GWh | Dec 2024 | - | ||
| Green Cow Power LLC | Goshen, IN | Industrial | 1 | 14.4 GWh | Dec 2024 | - | ||
| Green Country Op Services LLC | Jenks, OK | Independent Power Producer | 1 | 4.6 TWh | Dec 2024 | - | ||
| Green Country Energy, LLC | Columbus, OH | - | - | - | Jun 2025 | $21.83M | ||
| Green Correctional Coxsackie Ny Solar LLC | Framingham, MA | Independent Power Producer | 1 | 9.1 GWh | Dec 2024 | - | ||
| Green City Recovery, LLC | Georgetown, KY | Industrial | 1 | 1.4 GWh | Dec 2024 | - | ||
| Greater Sandhill I LLC | Morristown, NJ | Independent Power Producer | 1 | 45.5 GWh | Dec 2023 | - | ||
| Great Western Wind Energy, LLC | Phoenix, AZ | - | - | - | Oct 2025 | $4.21M | ||
| Great Valley Solar 3, LLC | Valhalla, NY | - | - | - | Oct 2025 | $667.33k | ||
| Great Valley Solar 2, LLC | Valhalla, NY | - | - | - | Oct 2025 | $2.35M | ||
| Great Valley Solar 1, LLC | Valhalla, NY | - | - | - | Oct 2025 | $4.35M | ||
| Great River Hydro, LLC | Westborough, MA | Independent Power Producer | 13 | 1.8 TWh | Dec 2024 | Sep 2025 | $44.29M | |
| Great River Energy | Maple Grove, MN | Cooperative | 10 | 463.9 GWh | Feb 2026 | Oct 2025 | $58.86M | $29.84M |
| Great Prairie Wind LLC | Juno Beach, FL | Independent Power Producer | 2 | 4.4 TWh | Feb 2026 | Oct 2025 | $3.34M | |
| Great Plains Windpark Legacy LLC | Bloomington, MN | Independent Power Producer | 1 | 110.9 GWh | Dec 2024 | Oct 2025 | $312.02k | |
| Great Pathfinder Wind | Charlottesville, VA | Independent Power Producer | 1 | 855.7 GWh | Feb 2026 | Oct 2025 | $1.70M | |
| Great Lakes Hydro America LLC | Millinocket, ME | Independent Power Producer | 2 | 786.6 GWh | Dec 2024 | Sep 2025 | $9.59M | |
| Great Cove Solar LLC | Louisville, CO | - | - | - | Oct 2025 | $1.66M | ||
| Great Cove Solar II LLC | Louisville, CO | - | - | - | Oct 2025 | $3.34M | $38.52k | |
| Great Bend Solar LLC | Independent Power Producer | 1 | 12.7 GWh | Feb 2026 | - | |||
| Great Bay Solar II, LLC | Oakville, ON | - | - | - | Sep 2025 | $1.37M | ||
| Great Bay Solar I LLC | Oakville, ON | Independent Power Producer | 1 | 143.6 GWh | Feb 2026 | Sep 2025 | $2.34M | |
| Great Bay Hydro Corp | Boulder, CO | Independent Power Producer | 2 | 23.3 GWh | Dec 2024 | Oct 2017 | ||
| Great American Gas & Electric, LLC | Harrison, NY | - | - | - | Sep 2025 | $589.05k | $2.50M | |
| Greasewood II LLC | Austin, TX | Independent Power Producer | 1 | 869.5 GWh | Feb 2026 | - | ||
| Grazing Yak Solar, LLC | Juno Beach, FL | Independent Power Producer | 1 | 83.6 GWh | Feb 2026 | Sep 2025 | $781.54k | |
| Grays Harbor Energy LLC | Chicago, IL | - | - | - | Sep 2025 | $43.98M | ||
| Grays Ferry Cogeneration Partnership | Boston, MA | - | - | - | Oct 2025 | $7.26M | ||
| Grays Ferry Cogen Partnership | Philadelphia, PA | Independent Power Producer | 1 | 1.3 TWh | Dec 2024 | - | ||
| Grayling Generating Station Limited Partnership | ANN Arbor, MI | - | - | - | Sep 2025 | $4.57M | ||
| Gray Hawk Solar, LLC | New York, NY | Independent Power Producer | 1 | 144.8 GWh | Feb 2026 | Sep 2025 | $2.41M | |
| Gray County Wind Energy LLC | Juno Beach, FL | Independent Power Producer | 1 | 289.4 GWh | Dec 2024 | Sep 2025 | $1.44M | |
| Gravel Pit Solar, LLC | New York, NY | Independent Power Producer | 1 | 160.5 GWh | Feb 2026 | - | ||
| Gravel Pit Solar IV, LLC | New York, NY | - | - | - | Sep 2025 | $1.79M | ||
| Gravel Pit Solar III, LLC | New York, NY | - | - | - | Sep 2025 | $1.02M | ||
| Gratiot County Wind LLC | Chicago, IL | - | - | - | Oct 2025 | $6.18M |
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 | Feb 2026 | Nuclear |
| Barry | Bucks, Alabama | 12 TWh | Jan 1954 | Feb 2026 | Natural Gas : 95.8% Bituminous Coal : 4.2% |
| Beaver Valley | Shippingport, Pennsylvania | 15 TWh | Aug 1976 | Feb 2026 | Nuclear |
| Bowen | Cartersville, Georgia | 12 TWh | Sep 1971 | Feb 2026 | Bituminous Coal : 99.8% |
| Braidwood Generation Station | Braceville, Illinois | 20 TWh | Jun 1988 | Feb 2026 | Nuclear |
| Browns Ferry | Decatur, Alabama | 30 TWh | Jul 1974 | Feb 2026 | Nuclear |
| Brunswick Nuclear | Southport, North Carolina | 16 TWh | Oct 1975 | Feb 2026 | Nuclear |
| Byron Generating Station | Byron, Illinois | 20 TWh | Aug 1985 | Feb 2026 | Nuclear |
| Calvert Cliffs Nuclear Power Plant | Lusby, Maryland | 15 TWh | Apr 1975 | Feb 2026 | Nuclear |
| Catawba | York, South Carolina | 20 TWh | May 1985 | Feb 2026 | Nuclear |
| Comanche Peak | Glen Rose, Texas | 20 TWh | Jul 1990 | Feb 2026 | Nuclear |
| Crystal River | Crystal River, Florida | 16 TWh | Sep 1966 | Feb 2026 | Natural Gas : 71.2% Bituminous Coal : 28.6% |
| Diablo Canyon | Avila Beach, California | 17 TWh | Apr 1985 | Feb 2026 | Nuclear |
| Donald C Cook | Bridgman, Michigan | 17 TWh | Jul 1975 | Feb 2026 | Nuclear |
| Dresden Generating Station | Morris, Illinois | 15 TWh | Jul 1970 | Feb 2026 | Nuclear |
| Edwin I Hatch | Baxley, Georgia | 14 TWh | Nov 1975 | Feb 2026 | Nuclear |
| Gavin Power, LLC | Cheshire, Ohio | 13 TWh | Sep 1974 | Feb 2026 | Bituminous Coal : 99.5% |
| Grand Coulee | Grand Coulee, Washington | 18 TWh | Feb 1941 | Feb 2026 | Water |
| Guernsey Power Station | Byesville, Ohio | 12 TWh | Jan 2023 | Feb 2026 | Natural Gas |
| H Allen Franklin Combined Cycle | Smiths, Alabama | 12 TWh | May 2002 | Feb 2026 | Natural Gas |
| Hines Energy Complex | Bartow, Florida | 12 TWh | Mar 1999 | Feb 2026 | Natural Gas |
| Jack McDonough | Smyrna, Georgia | 18 TWh | Apr 1971 | Feb 2026 | Natural Gas |
| James H Miller Jr | Quinton, Alabama | 19 TWh | Sep 1978 | Feb 2026 | Subbituminous Coal : 99.2% Natural Gas : 0.8% |
| Joseph M Farley | Columbia, Alabama | 13 TWh | Nov 1977 | Feb 2026 | Nuclear |
| Labadie | Labadie, Missouri | 17 TWh | May 1970 | Feb 2026 | Subbituminous Coal |
| LaSalle Generating Station | Marseilles, Illinois | 19 TWh | Dec 1983 | Feb 2026 | Nuclear |
| Limerick | Sanatoga, Pennsylvania | 19 TWh | Jan 1986 | Feb 2026 | Nuclear |
| McGuire | Huntersville, North Carolina | 19 TWh | Aug 1981 | Feb 2026 | Nuclear |
| Millstone | Waterford, Connecticut | 17 TWh | Nov 1975 | Feb 2026 | Nuclear |
| Monroe (MI) | Monroe, Michigan | 16 TWh | Oct 1969 | Feb 2026 | Subbituminous Coal : 74.7% Bituminous Coal : 16.2% Petroleum Coke : 8.9% |
| Nine Mile Point Nuclear Station | Lycoming, New York | 16 TWh | Nov 1969 | Feb 2026 | Nuclear |
| North Anna | Mineral, Virginia | 15 TWh | May 1978 | Feb 2026 | Nuclear |
| Oconee | Seneca, South Carolina | 22 TWh | Jun 1973 | Feb 2026 | Nuclear |
| Okeechobee Clean Energy Center | Okeechobee, Florida | 12 TWh | Feb 2019 | Feb 2026 | Natural Gas |
| Palo Verde | Wintersburg, Arizona | 31 TWh | Dec 1985 | Feb 2026 | Nuclear |
| Peach Bottom | Delta, Pennsylvania | 22 TWh | Jun 1974 | Feb 2026 | Nuclear |
| Prairie State Generating Station | Marissa, Illinois | 12 TWh | May 2012 | Feb 2026 | Bituminous Coal : 99.8% |
| PSEG Salem Generating Station | Hancocks Bridge, New Jersey | 19 TWh | May 1971 | Feb 2026 | Nuclear |
| Quad Cities Generating Station | Cordova, Illinois | 15 TWh | Nov 1972 | Feb 2026 | Nuclear |
| Robert Moses Niagara | Lewiston, New York | 14 TWh | Dec 1960 | Feb 2026 | Water |
| Sequoyah | Soddy Daisy, Tennessee | 15 TWh | Jun 1981 | Feb 2026 | Nuclear |
| South Texas Project | Wadsworth, Texas | 22 TWh | Jul 1988 | Feb 2026 | Nuclear |
| St Lucie | Jensen Beach, Florida | 16 TWh | Apr 1976 | Feb 2026 | Nuclear |
| Surry | Surry, Virginia | 13 TWh | Nov 1972 | Feb 2026 | Nuclear |
| TalenEnergy Susquehanna | Berwick, Pennsylvania | 19 TWh | May 1983 | Feb 2026 | Nuclear |
| Turkey Point | Homestead, Florida | 20 TWh | Mar 1967 | Feb 2026 | Nuclear : 67.9% Natural Gas : 32.1% |
| Vogtle | Waynesboro, Georgia | 37 TWh | Apr 1987 | Feb 2026 | Nuclear |
| W A Parish | Thompsons, Texas | 15 TWh | May 1958 | Feb 2026 | Subbituminous Coal : 83.0% Natural Gas : 17.0% |
| Watts Bar Nuclear Plant | Spring City, Tennessee | 18 TWh | Apr 1996 | Feb 2026 | Nuclear |
| West County Energy Center | Loxahatchee, Florida | 19 TWh | Jul 2009 | Feb 2026 | Natural Gas : 99.9% |