Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Mainline Windfarm | Mountain Air Projects, LLC | Glenns Ferry, ID | Idaho Power Company (IPCO) | 54.9 GWh | Nov 2012 | Dec 2023 | Wind |
| Majestic 1 Wind Farm | NextEra Energy Majestic Wind | Panhandle, TX | Southwest Power Pool (SWPP) | 345.1 GWh | Dec 2008 | Dec 2023 | Wind |
| Majestic II Wind | NextEra Energy Majestic Wind | Panhandle, TX | Southwest Power Pool (SWPP) | 180.7 GWh | Jul 2012 | Dec 2023 | Wind |
| Major Oak Power | Major Oak Power, LLC | Bremond, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 2.3 TWh | Aug 1990 | Mar 2025 | Lignite Coal : 99.8% |
| Malaga Power LLC | CalPeak Power, LLC | Fresno, CA | California Independent System Operator (CISO) | 14.1 GWh | Aug 2005 | Mar 2025 | Natural Gas |
| Malburg | City of Vernon | Vernon, CA | California Independent System Operator (CISO) | 361.9 GWh | Sep 2005 | Mar 2025 | Natural Gas |
| Malden | City of Malden - (MO) | Malden, MO | Southwest Power Pool (SWPP) | 75.0 MWh | Jul 1957 | Dec 2023 | Distillate Fuel Oil |
| Malech Solar Farm | County of Santa Clara (CA) | San Jose, CA | California Independent System Operator (CISO) | 5.3 GWh | Sep 2017 | Dec 2023 | Solar |
| Malmedal Solar Garden | Malmedal Garden LLC | Starbuck, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Jun 2019 | Dec 2023 | Solar |
| Malone Solar Site | Helios NY I, LLC | Malone, NY | New York Independent System Operator (NYIS) | 1.4 GWh | Nov 2018 | Dec 2023 | Solar |
| Mammoth G1 | Ormat Nevada Inc | Mammoth lakes, CA | California Independent System Operator (CISO) | 57.7 GWh | Nov 1984 | Dec 2023 | Geothermal |
| Mammoth G2 | Ormat Nevada Inc | Mammoth Lakes, CA | California Independent System Operator (CISO) | 62.3 GWh | Nov 1990 | Dec 2023 | Geothermal |
| Mammoth G3 | Ormat Nevada Inc | Mammoth Lakes, CA | California Independent System Operator (CISO) | 104.0 GWh | Nov 1990 | Dec 2023 | Geothermal |
| Mammoth North Solar | Mammoth North, LLC | Knox, IN | PJM Interconnection, LLC (PJM) | 202.5 GWh | - | Mar 2025 | Solar |
| Mammoth Plains | Mammoth Plains Wind Project | Oakwood, OK | Southwest Power Pool (SWPP) | 739.8 GWh | Nov 2014 | Dec 2023 | Wind |
| Mammoth Pool | Southern California Edison Co | North Fork, CA | California Independent System Operator (CISO) | 394.2 GWh | Feb 1960 | Mar 2025 | Water |
| Manalapan Village Solar | NJR Clean Energy Ventures Corporation | Manalapan, NJ | PJM Interconnection, LLC (PJM) | 3.6 GWh | Nov 2011 | Dec 2023 | Solar |
| Manatee | Florida Power & Light Co | Parrish, FL | Florida Power & Light Co. (FPL) | 6.4 TWh | Sep 1976 | Mar 2025 | Natural Gas |
| Manatee Solar Energy Center | Florida Power & Light Co | Parrish, FL | Florida Power & Light Co. (FPL) | 102.1 GWh | Nov 2016 | Mar 2025 | Solar |
| Manchester Community College East | Onyx Asset Services Group | Manchester, CT | ISO New England (ISNE) | 1.4 GWh | Sep 2018 | Dec 2023 | Solar |
| Manchester Community College North | Onyx Asset Services Group | Great Path, CT | ISO New England (ISNE) | 1.5 GWh | Sep 2018 | Dec 2023 | Solar |
| Manchester Street | Manchester Street, LLC. | Providence, RI | ISO New England (ISNE) | 1.5 TWh | Aug 1995 | Mar 2025 | Natural Gas : 98.2% Distillate Fuel Oil : 1.8% |
| Manchief Electric Generating Station | Public Service Co of Colorado | Brush, CO | Public Service Company of Colorado (PSCO) | 264.7 GWh | May 2000 | Mar 2025 | Natural Gas |
| Manheim New England | Cox Enterprises | North Dighton, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2012 | Dec 2023 | Solar |
| Manheim New Jersey | Cox Enterprises | Bordentown, NJ | PJM Interconnection, LLC (PJM) | 2.9 GWh | May 2009 | Dec 2023 | Solar |
| Manistique | Cloverland Electric Co-op | Manistique, MI | Midcontinent Independent System Operator, Inc. (MISO) | 977.0 MWh | Jun 1960 | Dec 2023 | Distillate Fuel Oil |
| Manitou Springs | City of Colorado Springs - (CO) | Manitou Spring, CO | Western Area Power Administration - Rocky Mountain Region (WACM) | 14.6 GWh | Apr 1927 | Dec 2023 | Water |
| Manitowoc | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 149.4 GWh | May 1955 | Mar 2025 | Wood/Wood Waste Solids : 97.2% Petroleum Coke : 1.4% Bituminous Coal : 1.0% |
| Mankato Energy Center | MEC Holdings, LLC | Mankato, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.6 TWh | Jun 2006 | Dec 2023 | Natural Gas |
| Manning PV 1 | Ecoplexus, Inc | Elon, NC | Duke Energy Carolinas (DUK) | 9.2 GWh | Nov 2018 | Dec 2023 | Solar |
| Mansfield Mill | IPC-Mansfield Mill | Mansfield, LA | Midcontinent Independent System Operator, Inc. (MISO) | 761.2 GWh | Sep 1981 | Mar 2025 | Natural Gas : 57.1% Black Liquor : 29.2% Wood/Wood Waste Solids : 12.0% Tire-derived Fuels : 1.8% |
| Manteca Land PV | AES Distributed Energy | Manteca, CA | California Independent System Operator (CISO) | 444.0 MWh | Nov 2017 | Dec 2023 | Solar |
| Manti Lower | City of Manti - (UT) | Manti, UT | PacifiCorp East (PACE) | 1.8 GWh | Dec 1988 | Dec 2023 | Water |
| Manti Upper | City of Manti - (UT) | Manti, UT | PacifiCorp East (PACE) | 58.0 MWh | Dec 1938 | Dec 2023 | Water |
| Manway Solar Farm | Strata Manager, LLC | Garland, NC | Duke Energy Progress East (CPLE) | 9.3 GWh | Nov 2015 | Dec 2023 | Solar |
| Manzana Wind LLC | Avangrid Renewables LLC | Rosamond, CA | California Independent System Operator (CISO) | 468.5 GWh | Nov 2012 | Dec 2023 | Wind |
| Manzano Solar | PNM Resources | Los Lunas, NM | Public Service Company of New Mexico (PNM) | 17.5 GWh | Sep 2013 | Dec 2023 | Solar |
| Maple City | Greenbacker Renewable Energy Corporation | Osage Township, IA | Associated Electric Cooperative, Inc. (AECI) | 2.9 GWh | Nov 2022 | Dec 2023 | Solar |
| Maple(CSG) | Maple Street Solar 1, LLC | Bellingham, MA | ISO New England (ISNE) | 5.8 GWh | Oct 2021 | Dec 2023 | Solar |
| Maple Flats | Invenergy Services LLC | Louisville, IL | Midcontinent Independent System Operator, Inc. (MISO) | 123.5 GWh | - | Mar 2025 | Solar |
| Maple Lake | Great River Energy | Maple Lake, MN | Midcontinent Independent System Operator, Inc. (MISO) | 622.1 MWh | Apr 1978 | Oct 2023 | Distillate Fuel Oil |
| Maple Ridge Wind Farm | Flat Rock Windpower, LLC | Lowville, NY | New York Independent System Operator (NYIS) | 697.7 GWh | Nov 2005 | Mar 2025 | Wind |
| Maple Solar | NFI Solar LLC | Vineland, NJ | PJM Interconnection, LLC (PJM) | 3.3 GWh | Apr 2011 | Dec 2023 | Solar |
| Mapleton Community Solar | Mapleton Community Solar | Mapleton, MN | Midcontinent Independent System Operator, Inc. (MISO) | 5.1 GWh | May 2017 | Dec 2023 | Solar |
| Maplewood Solar | Dominion Renewable Energy | Climax, VA | PJM Interconnection, LLC (PJM) | 196.5 GWh | Nov 2022 | Mar 2025 | Solar |
| Maquoketa 1 | City of Maquoketa - (IA) | Maquoketa, IA | Midcontinent Independent System Operator, Inc. (MISO) | 27.0 MWh | May 1956 | Dec 2023 | Natural Gas : 87.4% Distillate Fuel Oil : 12.6% |
| Marathon Bay Area Cogen | Tesoro Marketing & Refining Co. LLC (Martinez) | Martinez, CA | California Independent System Operator (CISO) | 699.4 GWh | Jan 1987 | Feb 2025 | Natural Gas |
| Marathon Solar Farm II LLC North | Distributed Solar Development, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 4.2 GWh | Nov 2020 | Dec 2023 | Solar |
| Marathon Solar Farm LLC South | Distributed Solar Development, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 6.6 GWh | Nov 2020 | Dec 2023 | Solar |
| Marble Falls | Lower Colorado River Authority | Marble Falls, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 10.2 GWh | Aug 1951 | Dec 2023 | Water |
| Marble River Wind Farm | Marble River, LLC | Churubusco, NY | New York Independent System Operator (NYIS) | 455.3 GWh | Oct 2012 | Mar 2025 | Wind |
| Marceline | City of Marceline - (MO) | Marceline, MO | Midcontinent Independent System Operator, Inc. (MISO) | 7.0 MWh | Jul 1989 | Dec 2023 | Distillate Fuel Oil |
| Marco Ranch | Marco Power Inc | Jerome, ID | Idaho Power Company (IPCO) | 2.6 GWh | Jul 1985 | Oct 2023 | Water |
| Marcus Hook Energy LP | Marcus Hook Energy LP | Marcus Hook, PA | PJM Interconnection, LLC (PJM) | 6.5 TWh | Nov 2004 | Mar 2025 | Natural Gas |
| Marengo Solar | DG Illinois Solar, LLC | Marengo, IL | PJM Interconnection, LLC (PJM) | 3.7 GWh | Nov 2020 | Dec 2023 | Solar |
| Marengo Wind Plant | PacifiCorp | Dayton, WA | PacifiCorp West (PACW) | 560.6 GWh | Jul 2007 | Dec 2023 | Wind |
| Mariah del Norte | BHE Renewables, LLC | Friona, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 867.8 GWh | Oct 2016 | Dec 2023 | Wind |
| Mariani Packing Vacaville Solar | SunE U6 Holdings LLC | Vacaville, CA | California Independent System Operator (CISO) | 891.0 MWh | Oct 2008 | Dec 2023 | Solar |
| Maricopa West Solar PV, LLC | Onward Energy | Taft, CA | California Independent System Operator (CISO) | 40.6 GWh | Nov 2015 | Dec 2023 | Solar |
| Marietta | Western Farmers Elec Coop, Inc | Marietta, OK | Southwest Power Pool (SWPP) | 4.3 GWh | Mar 2017 | Mar 2025 | Solar |
| Marigold Community Solar Garden, LLC | National Grid Renewables | Waterville, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.2 GWh | Dec 2020 | Dec 2023 | Solar |
| Marin Clean Energy Solar One | AES Distributed Energy | Richmond, CA | California Independent System Operator (CISO) | 19.9 GWh | Nov 2017 | Dec 2023 | Solar |
| Marina Landfill Gas | Monterey Regional Waste Mgmt | Marina, CA | California Independent System Operator (CISO) | 34.0 GWh | Mar 1998 | Dec 2023 | Landfill Gas |
| Marina South | Altus Power America Management, LLC | San Pedro, CA | California Independent System Operator (CISO) | 1.8 GWh | Nov 2020 | Dec 2023 | Solar |
| Marine Corps Logistics Base Solar | Georgia Power Co | Albany, GA | Southern Company Services, Inc. - Trans (SOCO) | 53.2 GWh | Jan 2018 | Mar 2025 | Solar |
| Marion | Southern Illinois Power Coop | Marion, IL | Midcontinent Independent System Operator, Inc. (MISO) | 734.7 GWh | May 1963 | Mar 2025 | Bituminous Coal : 83.9% Natural Gas : 16.0% |
| Marion Garden | Excelsior Energy Capital | Faribault, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Oct 2020 | Dec 2023 | Solar |
| Marion Solar LNG | Marion Solar LLC | Indianapolis, IN | Midcontinent Independent System Operator, Inc. (MISO) | 2.3 GWh | Sep 2015 | Dec 2023 | Solar |
| Mariposa Energy Project | Diamond Generating Corporation | Byron, CA | California Independent System Operator (CISO) | 74.3 GWh | Sep 2012 | Mar 2025 | Natural Gas |
| Mariposa Solar Center LLC | Heelstone Energy Holdings, LLC | Stanley, NC | Duke Energy Carolinas (DUK) | 9.1 GWh | Aug 2016 | Dec 2023 | Solar |
| Mark One Power Station | ProEnergy Services | Angleton, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 333.3 GWh | Oct 2022 | Mar 2025 | Natural Gas |
| Market Farm | Palmetto Power Management LLC | Reidsville, NC | Duke Energy Carolinas (DUK) | 8.5 GWh | Sep 2014 | Dec 2023 | Solar |
| Markham | Grand River Dam Authority | Locust Grove, OK | Southwest Power Pool (SWPP) | 123.5 GWh | Apr 1964 | Dec 2023 | Water |
| Markland | Duke Energy Indiana, LLC | Florence, IN | Midcontinent Independent System Operator, Inc. (MISO) | 394.7 GWh | Dec 1966 | Dec 2023 | Water |
| Markum Solar Farm | Markum Solar Farm, LLC | Valley Mills, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 116.2 GWh | - | Mar 2025 | Solar |
| Marlboro Mushrooms Solar Field | Marlboro Mushroom | West Grove, PA | PJM Interconnection, LLC (PJM) | 1.5 GWh | Oct 2011 | Dec 2023 | Solar |
| Marlborough Solar | Marlborough Solar, LLC | Milton, NY | ISO New England (ISNE) | 3.2 GWh | Feb 2021 | Dec 2023 | Solar |
| Marlin Solar | Cypress Creek Renewables | Marlin, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 10.3 GWh | Nov 2017 | Dec 2023 | Solar |
| Marlow Solar, LLC CSG | Marlow Solar, LLC | Bluford, IL | Midcontinent Independent System Operator, Inc. (MISO) | 3.9 GWh | Nov 2020 | Dec 2023 | Solar |
| Marmas Solar CSG | National Grid Renewables | St. Cloud, MN | Midcontinent Independent System Operator, Inc. (MISO) | 6.5 GWh | Mar 2018 | Dec 2023 | Solar |
| Marmet | Appalachian Power Co | Marmet, WV | PJM Interconnection, LLC (PJM) | 58.7 GWh | Nov 1935 | Dec 2023 | Water |
| Marquette Energy Center | City of Marquette - (MI) | Marquette, MI | Midcontinent Independent System Operator, Inc. (MISO) | 152.6 GWh | Jul 2017 | Dec 2023 | Natural Gas : 98.9% Distillate Fuel Oil : 1.1% |
| Mars Hill Wind Farm Project | Evergreen Wind, LLC | Mars Hill, ME | (NBSO) | 104.8 GWh | Feb 2007 | Dec 2023 | Wind |
| Mars Solar | Sol Systems | Bruni, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 23.0 GWh | Jul 2019 | Dec 2023 | Solar |
| Mars Wrigley Confectionery US, LLC | Mars Wrigley Confectionery US, LLC | Hackettstown, NJ | PJM Interconnection, LLC (PJM) | 48.5 GWh | Sep 1984 | Dec 2023 | Natural Gas |
| Marsh Hill Wind Farm | Invenergy Services LLC | Jasper, NY | New York Independent System Operator (NYIS) | 38.1 GWh | Oct 2014 | Dec 2023 | Wind |
| Marsh Landing Generating Station | Marsh Landing LLC | Antioch, CA | California Independent System Operator (CISO) | 118.9 GWh | Apr 2013 | Mar 2025 | Natural Gas |
| Marsh Run Generation Facility | Old Dominion Electric Coop | Remington, VA | PJM Interconnection, LLC (PJM) | 215.4 GWh | Aug 2004 | Dec 2023 | Natural Gas : 99.6% |
| Marsh Valley Development | Marsh Valley Development Inc | McCammon, ID | PacifiCorp East (PACE) | 6.9 GWh | Mar 1993 | Dec 2023 | Water |
| Marshall | Alaska Village Elec Coop, Inc | Marshall, AK | 1.6 GWh | May 1994 | Dec 2023 | Distillate Fuel Oil | |
| Marshall Energy Facility | Tennessee Valley Authority | Calvert City, KY | Tennessee Valley Authority (TVA) | 176.3 GWh | May 2002 | Mar 2025 | Natural Gas : 99.4% Distillate Fuel Oil : 0.6% |
| Marshall Ford | Lower Colorado River Authority | Austin, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 25.7 GWh | Dec 1940 | Dec 2023 | Water |
| Marshall (IL) | City of Marshall - (IL) | Marshall, IL | Midcontinent Independent System Operator, Inc. (MISO) | 202.0 MWh | Mar 2002 | Dec 2023 | Distillate Fuel Oil |
| Marshall (MI) | City of Marshall - (MI) | Marshall, MI | Midcontinent Independent System Operator, Inc. (MISO) | 611.0 MWh | May 1928 | Dec 2023 | Water |
| Marshall (MN) | City of Marshall - (MN) | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 57.8 MWh | Jun 1969 | Dec 2023 | Distillate Fuel Oil |
| Marshall (MO) | City of Marshall - (MO) | Marshall, MO | Southwest Power Pool (SWPP) | 1.7 GWh | May 1948 | Dec 2023 | Natural Gas : 96.3% Distillate Fuel Oil : 3.7% |
| Marshall (NC) | Duke Energy Carolinas, LLC | Terrell, NC | Duke Energy Carolinas (DUK) | 8.0 TWh | Feb 1965 | Mar 2025 | Bituminous Coal : 55.3% Natural Gas : 44.7% |
| Marshall Solar | Marshall Solar | Hartsville, SC | Duke Energy Progress East (CPLE) | 4.4 GWh | Jun 2022 | Dec 2023 | Solar |
| Marshall Solar Energy Project | Marshall Solar Energy Project | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 90.4 GWh | Dec 2016 | Mar 2025 | Solar |
| Marshall Solar Farm (MO) | Missouri Jnt Muni.Pwr Elec. Ut. Comm. | Marshall, MO | Southwest Power Pool (SWPP) | 4.2 GWh | Nov 2016 | Dec 2023 | Solar |
Summary of Power Plants By State
Figures are based on March 2025 generation numbers.| State | Rank | Active Plants | Mar 2025 Generation |
|---|---|---|---|
| Alabama | # 7 | 75 | 10,399.45 GWh |
| Alaska | # 48 | 137 | 460.30 GWh |
| Arizona | # 16 | 167 | 7,756.35 GWh |
| Arkansas | # 29 | 81 | 4,503.48 GWh |
| California | # 5 | 1,596 | 15,306.94 GWh |
| Colorado | # 30 | 265 | 4,337.74 GWh |
| Connecticut | # 31 | 152 | 3,831.37 GWh |
| Delaware | # 50 | 31 | 183.34 GWh |
| District of Columbia | # 51 | 12 | 15.27 GWh |
| Florida | # 3 | 304 | 18,686.61 GWh |
| Georgia | # 9 | 241 | 9,979.52 GWh |
| Hawaii | # 46 | 67 | 749.10 GWh |
| Idaho | # 43 | 146 | 1,488.21 GWh |
| Illinois | # 4 | 338 | 15,592.21 GWh |
| Indiana | # 12 | 203 | 8,849.97 GWh |
| Iowa | # 20 | 281 | 6,323.45 GWh |
| Kansas | # 25 | 157 | 5,176.23 GWh |
| Kentucky | # 24 | 57 | 5,180.56 GWh |
| Louisiana | # 18 | 81 | 6,708.43 GWh |
| Maine | # 45 | 159 | 1,313.29 GWh |
| Maryland | # 39 | 181 | 2,427.73 GWh |
| Massachusetts | # 42 | 599 | 1,608.56 GWh |
| Michigan | # 10 | 268 | 9,898.87 GWh |
| Minnesota | # 26 | 740 | 5,082.27 GWh |
| Mississippi | # 19 | 55 | 6,374.07 GWh |
| Missouri | # 21 | 118 | 5,776.95 GWh |
| State | Rank | Active Plants | Mar 2025 Generation |
|---|---|---|---|
| Montana | # 40 | 69 | 2,309.70 GWh |
| Nebraska | # 37 | 119 | 3,008.88 GWh |
| Nevada | # 34 | 109 | 3,381.98 GWh |
| New Hampshire | # 44 | 56 | 1,374.49 GWh |
| New Jersey | # 28 | 375 | 4,514.07 GWh |
| New Mexico | # 35 | 140 | 3,378.20 GWh |
| New York | # 8 | 830 | 10,278.94 GWh |
| North Carolina | # 11 | 880 | 9,080.20 GWh |
| North Dakota | # 33 | 57 | 3,690.67 GWh |
| Ohio | # 6 | 191 | 11,252.37 GWh |
| Oklahoma | # 17 | 131 | 6,972.70 GWh |
| Oregon | # 22 | 260 | 5,543.74 GWh |
| Pennsylvania | # 2 | 240 | 19,658.43 GWh |
| Rhode Island | # 47 | 95 | 622.24 GWh |
| South Carolina | # 14 | 198 | 8,606.12 GWh |
| South Dakota | # 41 | 52 | 1,945.10 GWh |
| Tennessee | # 23 | 84 | 5,241.09 GWh |
| Texas | # 1 | 821 | 43,194.33 GWh |
| Utah | # 36 | 119 | 3,056.84 GWh |
| Vermont | # 49 | 112 | 230.44 GWh |
| Virginia | # 15 | 215 | 8,465.83 GWh |
| Washington | # 13 | 137 | 8,662.62 GWh |
| West Virginia | # 38 | 36 | 2,977.95 GWh |
| Wisconsin | # 27 | 222 | 4,571.79 GWh |
| Wyoming | # 32 | 73 | 3,817.24 GWh |