Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Maiden Community Center | North Carolina Mun Power Agny #1 | Maiden, NC | Duke Energy Carolinas (DUK) | 99.0 MWh | Aug 2006 | Dec 2024 | Distillate Fuel Oil |
| Maiden Creek Solar Power Plant | Duke Energy Carolinas, LLC | Maiden, NC | Duke Energy Carolinas (DUK) | 116.7 GWh | Dec 2020 | Sep 2025 | Solar |
| Maimonides Medical Center | Maimonides Medical Center | Brooklyn, NY | New York Independent System Operator (NYIS) | 21.0 MWh | Dec 1989 | Dec 2024 | Distillate Fuel Oil |
| Main Canal Headworks | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 103.3 GWh | Dec 1986 | Oct 2024 | Water |
| Main Rd Community Solar | AES Distributed Energy | Newstead, NY | ISO New England (ISNE) | 8.1 GWh | Jun 2022 | Dec 2024 | Solar |
| Main Street (MI) | Village of Sebewaing - (MI) | Sebewaing, MI | Midcontinent Independent System Operator, Inc. (MISO) | 1.0 MWh | May 1947 | Dec 2023 | Distillate Fuel Oil |
| Main Street Solar Project | Greenbacker Renewable Energy Corporation | Rutland, VT | ISO New England (ISNE) | 2.2 GWh | Nov 2014 | Dec 2024 | Solar |
| Maine Independence Station | Casco Bay Energy Co LLC | Veazie, ME | ISO New England (ISNE) | 2.5 TWh | Apr 2000 | Dec 2024 | Natural Gas |
| Mainely Solar (Wyman Hill Solar LLC) | Wyman Hill Solar, LLC | Rumford, ME | ISO New England (ISNE) | 4.8 GWh | Nov 2022 | Dec 2024 | Solar |
| Mainline Windfarm | Mountain Air Projects, LLC | Glenns Ferry, ID | Idaho Power Company (IPCO) | 61.7 GWh | Nov 2012 | Dec 2024 | Wind |
| Maize | Today's Power, Inc. | Colwich, KS | Southwest Power Pool (SWPP) | 2.4 GWh | Apr 2021 | Dec 2024 | Solar |
| Majestic 1 Wind Farm | NextEra Energy Majestic Wind | Panhandle, TX | Southwest Power Pool (SWPP) | 365.1 GWh | Dec 2008 | Dec 2024 | Wind |
| Majestic II Wind | NextEra Energy Majestic Wind | Panhandle, TX | Southwest Power Pool (SWPP) | 157.4 GWh | Jul 2012 | Dec 2024 | Wind |
| Major Oak Power | Major Oak Power, LLC | Bremond, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 2.2 TWh | Aug 1990 | Sep 2025 | Lignite Coal : 99.8% |
| Malaga Power LLC | CalPeak Power, LLC | Fresno, CA | California Independent System Operator (CISO) | 12.3 GWh | Aug 2005 | Sep 2025 | Natural Gas |
| Malburg | City of Vernon | Vernon, CA | California Independent System Operator (CISO) | 326.4 GWh | Sep 2005 | Sep 2025 | Natural Gas |
| Malden | City of Malden - (MO) | Malden, MO | Southwest Power Pool (SWPP) | 128.0 MWh | Jul 1957 | Dec 2024 | Distillate Fuel Oil |
| Malech Solar Farm | County of Santa Clara (CA) | San Jose, CA | California Independent System Operator (CISO) | 4.8 GWh | Sep 2017 | Dec 2024 | Solar |
| Malmedal Solar Garden | Malmedal Garden LLC | Starbuck, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Jun 2019 | Dec 2024 | Solar |
| Malone Solar Site | Helios NY I, LLC | Malone, NY | New York Independent System Operator (NYIS) | 1.5 GWh | Nov 2018 | Dec 2024 | Solar |
| Mammoth G1 | Ormat Nevada Inc | Mammoth lakes, CA | California Independent System Operator (CISO) | 59.6 GWh | Nov 1984 | Dec 2024 | Geothermal |
| Mammoth G2 | Ormat Nevada Inc | Mammoth Lakes, CA | California Independent System Operator (CISO) | 82.3 GWh | Nov 1990 | Dec 2024 | Geothermal |
| Mammoth G3 | Ormat Nevada Inc | Mammoth Lakes, CA | California Independent System Operator (CISO) | 103.1 GWh | Nov 1990 | Dec 2024 | Geothermal |
| Mammoth North Solar | Mammoth North, LLC | Knox, IN | PJM Interconnection, LLC (PJM) | 693.0 GWh | Oct 2024 | Sep 2025 | Solar |
| Mammoth Plains | Mammoth Plains Wind Project | Oakwood, OK | Southwest Power Pool (SWPP) | 719.9 GWh | Nov 2014 | Dec 2024 | Wind |
| Mammoth Pool | Southern California Edison Co | North Fork, CA | California Independent System Operator (CISO) | 383.3 GWh | Feb 1960 | Sep 2025 | Water |
| Manalapan Village Solar | NJR Clean Energy Ventures Corporation | Manalapan, NJ | PJM Interconnection, LLC (PJM) | 3.4 GWh | Nov 2011 | Dec 2024 | Solar |
| Manatee | Florida Power & Light Co | Parrish, FL | Florida Power & Light Co. (FPL) | 6.2 TWh | Sep 1976 | Sep 2025 | Natural Gas |
| Manatee Solar Energy Center | Florida Power & Light Co | Parrish, FL | Florida Power & Light Co. (FPL) | 99.1 GWh | Nov 2016 | Sep 2025 | Solar |
| Manchester Community College East | Onyx Asset Services Group | Manchester, CT | ISO New England (ISNE) | 1.5 GWh | Sep 2018 | Dec 2024 | Solar |
| Manchester Community College North | Onyx Asset Services Group | Great Path, CT | ISO New England (ISNE) | 1.5 GWh | Sep 2018 | Dec 2024 | Solar |
| Manchester Street | Manchester Street, LLC. | Providence, RI | ISO New England (ISNE) | 1.8 TWh | Aug 1995 | Sep 2025 | Natural Gas : 98.5% Distillate Fuel Oil : 1.5% |
| Manchief Electric Generating Station | Public Service Co of Colorado | Brush, CO | Public Service Company of Colorado (PSCO) | 272.4 GWh | May 2000 | Sep 2025 | Natural Gas |
| Manheim New England | Cox Enterprises | North Dighton, MA | ISO New England (ISNE) | 2.4 GWh | Nov 2012 | Dec 2024 | Solar |
| Manheim New Jersey | Cox Enterprises | Bordentown, NJ | PJM Interconnection, LLC (PJM) | 3.6 GWh | May 2009 | Dec 2024 | Solar |
| Manilus | Solar Planet Power | Manilus, NY | New York Independent System Operator (NYIS) | 6.3 GWh | Nov 2023 | Dec 2024 | Solar |
| Manistique | Cloverland Electric Co-op | Manistique, MI | Midcontinent Independent System Operator, Inc. (MISO) | 1.1 GWh | Jun 1960 | Dec 2024 | Distillate Fuel Oil |
| Manitou Springs | City of Colorado Springs - (CO) | Manitou Spring, CO | Western Area Power Administration - Rocky Mountain Region (WACM) | 2.1 GWh | Apr 1927 | Dec 2024 | Water |
| Manitowoc | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 179.3 GWh | May 1955 | Sep 2025 | Wood/Wood Waste Solids : 91.2% Petroleum Coke : 4.8% Bituminous Coal : 3.6% |
| Mankato Energy Center | MEC Holdings, LLC | Mankato, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.7 TWh | Jun 2006 | Dec 2024 | Natural Gas |
| Manlius East | CVE US EI5 Manlius East LLC | Manlius, NY | New York Independent System Operator (NYIS) | 1.1 GWh | Sep 2024 | Dec 2024 | Solar |
| Manlius North | CVE US EI4 Manlius North LLC | Manlius, NY | New York Independent System Operator (NYIS) | 317.0 MWh | Sep 2024 | Dec 2024 | Solar |
| Manlius West | CVE US EI5 Manlius West LLC | Manlius, NY | New York Independent System Operator (NYIS) | 848.0 MWh | Sep 2024 | Dec 2024 | Solar |
| Manning PV 1 | Ecoplexus, Inc | Elon, NC | Duke Energy Carolinas (DUK) | 9.3 GWh | Nov 2018 | Dec 2024 | Solar |
| Mansfield Mill | IPC-Mansfield Mill | Mansfield, LA | Midcontinent Independent System Operator, Inc. (MISO) | 811.4 GWh | Sep 1981 | Sep 2025 | Natural Gas : 55.4% Black Liquor : 30.8% Wood/Wood Waste Solids : 11.8% Tire-derived Fuels : 2.0% |
| Manteca Land PV | AES Distributed Energy | Manteca, CA | California Independent System Operator (CISO) | 1.6 GWh | Nov 2017 | Dec 2024 | Solar |
| Manti Lower | City of Manti - (UT) | Manti, UT | PacifiCorp East (PACE) | 802.0 MWh | Dec 1988 | Dec 2024 | Water |
| Manti Upper | City of Manti - (UT) | Manti, UT | PacifiCorp East (PACE) | 464.0 MWh | Dec 1938 | Apr 2024 | Water |
| Mantisi | Mantisi Solar LLC | Brockport, NY | New York Independent System Operator (NYIS) | 6.5 GWh | Feb 2024 | Dec 2024 | Solar |
| Manway Solar Farm | Strata Manager, LLC | Garland, NC | Duke Energy Progress East (CPLE) | 9.9 GWh | Nov 2015 | Dec 2024 | Solar |
| Manzana Wind LLC | Avangrid Power LLC | Rosamond, CA | California Independent System Operator (CISO) | 543.7 GWh | Nov 2012 | Dec 2024 | Wind |
| Manzano Solar | PNM Resources | Los Lunas, NM | Public Service Company of New Mexico (PNM) | 18.3 GWh | Sep 2013 | Dec 2024 | Solar |
| Maple City | Greenbacker Renewable Energy Corporation | Osage Township, IA | Associated Electric Cooperative, Inc. (AECI) | 3.1 GWh | Nov 2022 | Dec 2024 | Solar |
| Maple(CSG) | Maple Street Solar 1, LLC | Bellingham, MA | ISO New England (ISNE) | 6.7 GWh | Oct 2021 | Dec 2024 | Solar |
| Maple Flats | Invenergy Services LLC | Louisville, IL | Midcontinent Independent System Operator, Inc. (MISO) | 430.5 GWh | Oct 2024 | Sep 2025 | Solar |
| Maple Lake | Great River Energy | Maple Lake, MN | Midcontinent Independent System Operator, Inc. (MISO) | 176.0 MWh | Apr 1978 | Dec 2024 | Distillate Fuel Oil |
| Maple Ridge Wind Farm | Flat Rock Windpower, LLC | Lowville, NY | New York Independent System Operator (NYIS) | 713.6 GWh | Nov 2005 | Sep 2025 | Wind |
| Maple Solar | NFI Solar LLC | Vineland, NJ | PJM Interconnection, LLC (PJM) | 4.0 GWh | Apr 2011 | Dec 2024 | Solar |
| Mapleton Community Solar | Mapleton Community Solar | Mapleton, MN | Midcontinent Independent System Operator, Inc. (MISO) | 5.0 GWh | May 2017 | Dec 2024 | Solar |
| Maplewood Solar | Dominion Renewable Energy | Climax, VA | PJM Interconnection, LLC (PJM) | 190.5 GWh | Nov 2022 | Sep 2025 | Solar |
| Marathon Bay Area Cogen | Tesoro Marketing & Refining Co. LLC (Martinez) | Martinez, CA | California Independent System Operator (CISO) | 613.4 GWh | Jan 1987 | Sep 2025 | Natural Gas |
| Marathon Generating Plant | Florida Keys El Coop Assn, Inc | Marathon, FL | Florida Power & Light Co. (FPL) | 46.1 MWh | Dec 1957 | Dec 2024 | Distillate Fuel Oil |
| Marathon Solar Farm II LLC North | Distributed Solar Development, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 4.7 GWh | Nov 2020 | Dec 2024 | Solar |
| Marathon Solar Farm LLC South | Distributed Solar Development, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 6.4 GWh | Nov 2020 | Dec 2024 | Solar |
| Marble Falls | Lower Colorado River Authority | Marble Falls, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 15.2 GWh | Aug 1951 | Dec 2024 | Water |
| Marble River Wind Farm | Marble River, LLC | Churubusco, NY | New York Independent System Operator (NYIS) | 473.7 GWh | Oct 2012 | Sep 2025 | Wind |
| Marceline | City of Marceline - (MO) | Marceline, MO | Midcontinent Independent System Operator, Inc. (MISO) | 4.0 MWh | Jul 1989 | Dec 2024 | Distillate Fuel Oil |
| Marco Ranch | Marco Power Inc | Jerome, ID | Idaho Power Company (IPCO) | 2.5 GWh | Jul 1985 | Oct 2024 | Water |
| Marcus Hook Energy LP | Marcus Hook Energy LP | Marcus Hook, PA | PJM Interconnection, LLC (PJM) | 6.1 TWh | Nov 2004 | Sep 2025 | Natural Gas |
| Marengo Solar | DG Illinois Solar, LLC | Marengo, IL | PJM Interconnection, LLC (PJM) | 3.9 GWh | Nov 2020 | Dec 2024 | Solar |
| Marengo Wind Plant | PacifiCorp | Dayton, WA | PacifiCorp West (PACW) | 692.7 GWh | Jul 2007 | Dec 2024 | Wind |
| Mariah del Norte | BHE Renewables, LLC | Friona, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 910.9 GWh | Oct 2016 | Dec 2024 | Wind |
| Mariani Packing Vacaville Solar | SunE U6 Holdings LLC | Vacaville, CA | California Independent System Operator (CISO) | 1.3 GWh | Oct 2008 | Dec 2024 | Solar |
| Mariaville Road Elsworth Solar, LLC | REA Investments, LLC | Ellsworth, ME | ISO New England (ISNE) | 2.5 GWh | Apr 2022 | Dec 2024 | Solar |
| Maricopa West Solar PV, LLC | Onward Energy | Taft, CA | California Independent System Operator (CISO) | 47.6 GWh | Nov 2015 | Dec 2024 | Solar |
| Marietta | Western Farmers Elec Coop, Inc | Marietta, OK | Southwest Power Pool (SWPP) | 4.8 GWh | Mar 2017 | Sep 2025 | Solar |
| Marigold Community Solar Garden, LLC | National Grid Renewables | Waterville, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Dec 2020 | Dec 2024 | Solar |
| Marin Clean Energy Solar One | AES Distributed Energy | Richmond, CA | California Independent System Operator (CISO) | 21.3 GWh | Nov 2017 | Dec 2024 | Solar |
| Marina Landfill Gas | Monterey Regional Waste Mgmt | Marina, CA | California Independent System Operator (CISO) | 22.8 GWh | Mar 1998 | Dec 2024 | Landfill Gas |
| Marina South | Altus Power America Management, LLC | San Pedro, CA | California Independent System Operator (CISO) | 1.8 GWh | Nov 2020 | Dec 2024 | Solar |
| Marine Corps Logistics Base Solar | Georgia Power Co | Albany, GA | Southern Company Services, Inc. - Trans (SOCO) | 55.4 GWh | Jan 2018 | Sep 2025 | Solar |
| Marion | Southern Illinois Power Coop | Marion, IL | Midcontinent Independent System Operator, Inc. (MISO) | 761.7 GWh | May 1963 | Sep 2025 | Bituminous Coal : 85.9% Natural Gas : 14.0% |
| Marion Garden | Excelsior Energy Capital | Faribault, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Oct 2020 | Dec 2024 | Solar |
| Marion Solar 4b LLC | Pivot Energy | Sandoval, IL | Midcontinent Independent System Operator, Inc. (MISO) | 970.0 MWh | Apr 2024 | Dec 2024 | Solar |
| Marion Solar LNG | Marion Solar LLC | Indianapolis, IN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Sep 2015 | Dec 2024 | Solar |
| Mariposa Energy Project | Diamond Generating Corporation | Byron, CA | California Independent System Operator (CISO) | 45.4 GWh | Sep 2012 | Sep 2025 | Natural Gas |
| Mariposa Solar Center LLC | Heelstone Energy Holdings, LLC | Stanley, NC | Duke Energy Carolinas (DUK) | 8.9 GWh | Aug 2016 | Dec 2024 | Solar |
| Mark One Power Station | ProEnergy Services | Angleton, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 285.7 GWh | Oct 2022 | Sep 2025 | Natural Gas |
| Market Farm | Palmetto Power Management LLC | Reidsville, NC | Duke Energy Carolinas (DUK) | 7.9 GWh | Sep 2014 | Dec 2024 | Solar |
| Market Street Gardiner Solar, LLC | REA Investments, LLC | Gardiner, ME | ISO New England (ISNE) | 6.1 GWh | Jun 2022 | Dec 2024 | Solar |
| Markham | Grand River Dam Authority | Locust Grove, OK | Southwest Power Pool (SWPP) | 188.2 GWh | Apr 1964 | Dec 2024 | Water |
| Markland | Duke Energy Indiana, LLC | Florence, IN | Midcontinent Independent System Operator, Inc. (MISO) | 298.8 GWh | Dec 1966 | Dec 2024 | Water |
| Markum Solar Farm | Markum Solar Farm, LLC | Valley Mills, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 332.8 GWh | Oct 2024 | Sep 2025 | Solar |
| Marlboro Mill | Domtar Paper Company Bennettsville | Bennettsville, SC | South Carolina Public Service Authority (SC) | 198.5 GWh | Aug 2010 | Dec 2024 | Black Liquor : 81.9% Wood/Wood Waste Solids : 18.1% |
| Marlboro Mushrooms Solar Field | Marlboro Mushroom | West Grove, PA | PJM Interconnection, LLC (PJM) | 1.3 GWh | Oct 2011 | Dec 2024 | Solar |
| Marlborough Solar | Marlborough Solar, LLC | Milton, NY | ISO New England (ISNE) | 3.4 GWh | Feb 2021 | Dec 2024 | Solar |
| Marlin Solar | Cypress Creek Renewables | Marlin, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 9.9 GWh | Nov 2017 | Dec 2024 | Solar |
| Marlow Solar, LLC CSG | Marlow Solar, LLC | Bluford, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.3 GWh | Nov 2020 | Dec 2024 | Solar |
| Marmas Solar CSG | National Grid Renewables | St. Cloud, MN | Midcontinent Independent System Operator, Inc. (MISO) | 6.4 GWh | Mar 2018 | Dec 2024 | Solar |
| Marmet | Appalachian Power Co | Marmet, WV | PJM Interconnection, LLC (PJM) | 67.4 GWh | Nov 1935 | Dec 2024 | Water |
Summary of Power Plants By State
Figures are based on September 2025 generation numbers.| State | Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Alabama | # 7 | 76 | 12,052.47 GWh |
| Alaska | # 48 | 147 | 527.57 GWh |
| Arizona | # 9 | 183 | 11,602.92 GWh |
| Arkansas | # 21 | 117 | 5,844.09 GWh |
| California | # 4 | 1,769 | 19,371.91 GWh |
| Colorado | # 30 | 304 | 4,433.17 GWh |
| Connecticut | # 32 | 168 | 3,779.74 GWh |
| Delaware | # 49 | 33 | 419.31 GWh |
| District of Columbia | # 51 | 16 | 16.99 GWh |
| Florida | # 2 | 323 | 24,446.09 GWh |
| Georgia | # 8 | 266 | 11,628.97 GWh |
| Hawaii | # 47 | 73 | 826.54 GWh |
| Idaho | # 44 | 148 | 1,495.33 GWh |
| Illinois | # 5 | 385 | 14,642.93 GWh |
| Indiana | # 14 | 213 | 8,730.35 GWh |
| Iowa | # 26 | 295 | 5,224.35 GWh |
| Kansas | # 25 | 189 | 5,250.86 GWh |
| Kentucky | # 23 | 60 | 5,806.86 GWh |
| Louisiana | # 13 | 87 | 9,343.34 GWh |
| Maine | # 45 | 217 | 1,135.36 GWh |
| Maryland | # 39 | 204 | 2,935.42 GWh |
| Massachusetts | # 41 | 652 | 1,746.92 GWh |
| Michigan | # 11 | 279 | 10,468.02 GWh |
| Minnesota | # 29 | 769 | 4,717.95 GWh |
| Mississippi | # 20 | 58 | 6,625.37 GWh |
| Missouri | # 22 | 128 | 5,843.17 GWh |
| State | Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Montana | # 40 | 72 | 1,949.24 GWh |
| Nebraska | # 34 | 132 | 3,501.38 GWh |
| Nevada | # 31 | 114 | 4,053.88 GWh |
| New Hampshire | # 42 | 60 | 1,549.07 GWh |
| New Jersey | # 27 | 399 | 4,969.45 GWh |
| New Mexico | # 36 | 145 | 3,317.84 GWh |
| New York | # 12 | 966 | 10,145.62 GWh |
| North Carolina | # 10 | 917 | 11,211.15 GWh |
| North Dakota | # 37 | 60 | 3,089.17 GWh |
| Ohio | # 6 | 201 | 12,818.31 GWh |
| Oklahoma | # 17 | 143 | 7,364.05 GWh |
| Oregon | # 28 | 282 | 4,812.51 GWh |
| Pennsylvania | # 3 | 260 | 19,731.43 GWh |
| Rhode Island | # 46 | 100 | 863.62 GWh |
| South Carolina | # 16 | 207 | 7,861.23 GWh |
| South Dakota | # 43 | 52 | 1,535.17 GWh |
| Tennessee | # 19 | 88 | 6,829.06 GWh |
| Texas | # 1 | 946 | 51,969.48 GWh |
| Utah | # 35 | 126 | 3,419.48 GWh |
| Vermont | # 50 | 120 | 165.14 GWh |
| Virginia | # 15 | 241 | 8,580.52 GWh |
| Washington | # 18 | 138 | 7,120.43 GWh |
| West Virginia | # 38 | 39 | 3,057.29 GWh |
| Wisconsin | # 24 | 251 | 5,674.74 GWh |
| Wyoming | # 33 | 73 | 3,641.70 GWh |