Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Markum Solar Farm | Markum Solar Farm, LLC | Valley Mills, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 367.0 GWh | Oct 2024 | May 2026 | Solar |
| Markland | Duke Energy Indiana, LLC | Florence, IN | Midcontinent Independent System Operator, Inc. (MISO) | 252.6 GWh | Dec 1966 | Dec 2025 | Water |
| Markham | Grand River Dam Authority | Locust Grove, OK | Southwest Power Pool (SWPP) | 288.1 GWh | Apr 1964 | Dec 2025 | Water |
| Market Street Gardiner Solar, LLC | REA Investments, LLC | Gardiner, ME | ISO New England (ISNE) | 5.9 GWh | Jun 2022 | Dec 2025 | Solar |
| Market Farm | Headwater Energy, LLC | Reidsville, NC | Duke Energy Carolinas (DUK) | 7.5 GWh | Sep 2014 | Dec 2025 | Solar |
| Mark One Power Station | City of San Antonio - (TX) | Angleton, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 408.2 GWh | Oct 2022 | May 2026 | Natural Gas |
| Mariposa Solar Center LLC | Heelstone Energy Holdings, LLC | Stanley, NC | Duke Energy Carolinas (DUK) | 8.5 GWh | Aug 2016 | Dec 2025 | Solar |
| Mariposa Energy Project | Diamond Generating Corporation | Byron, CA | California Independent System Operator (CISO) | 24.3 GWh | Sep 2012 | May 2026 | Natural Gas |
| Marion Solar LNG | Marion Solar LLC | Indianapolis, IN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Sep 2015 | Dec 2025 | Solar |
| Marion Solar 4b LLC | Pivot Energy | Sandoval, IL | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 GWh | Apr 2024 | Dec 2025 | Solar |
| Marion Solar 2 | Pivot Energy | Sandoval, IL | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Dec 2024 | Dec 2025 | Solar |
| Marion Garden | Excelsior Energy Capital | Faribault, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.6 GWh | Oct 2020 | Dec 2025 | Solar |
| Marion County Solar Project | Marion County Solar Project, LLC | Marion, OH | PJM Interconnection, LLC (PJM) | 50.2 GWh | - | May 2026 | Solar |
| Marion | Southern Illinois Power Coop | Marion, IL | Midcontinent Independent System Operator, Inc. (MISO) | 798.2 GWh | May 1963 | May 2026 | Bituminous Coal : 86.6% Natural Gas : 12.8% Distillate Fuel Oil : 0.6% |
| Marine Corps Logistics Base Solar | Georgia Power Co | Albany, GA | Southern Company Services, Inc. - Trans (SOCO) | 55.0 GWh | Jan 2018 | May 2026 | Solar |
| Marina South | Altus Power America Management, LLC | San Pedro, CA | California Independent System Operator (CISO) | 1.8 GWh | Nov 2020 | Dec 2025 | Solar |
| Marina Landfill Gas | Monterey Regional Waste Mgmt | Marina, CA | California Independent System Operator (CISO) | 9.5 GWh | Mar 1998 | Dec 2025 | Landfill Gas |
| Marin Clean Energy Solar One | AES Distributed Energy | Richmond, CA | California Independent System Operator (CISO) | 21.2 GWh | Nov 2017 | Dec 2025 | Solar |
| Marigold Community Solar Garden, LLC | Geronimo Power | Waterville, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Dec 2020 | Dec 2025 | Solar |
| Marietta | Western Farmers Elec Coop, Inc | Marietta, OK | Southwest Power Pool (SWPP) | 4.6 GWh | Mar 2017 | May 2026 | Solar |
| Maricopa West Solar PV, LLC | Onward Energy | Taft, CA | California Independent System Operator (CISO) | 50.3 GWh | Nov 2015 | Dec 2025 | Solar |
| Mariaville Road Elsworth Solar, LLC | REA Investments, LLC | Ellsworth, ME | ISO New England (ISNE) | 1.3 GWh | Apr 2022 | Dec 2025 | Solar |
| Mariani Packing Vacaville Solar | SunE U6 Holdings LLC | Vacaville, CA | California Independent System Operator (CISO) | 586.0 MWh | Oct 2008 | Dec 2025 | Solar |
| Mariah del Norte | BHE Renewables, LLC | Friona, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 840.8 GWh | Oct 2016 | Dec 2025 | Wind |
| Marengo Wind Plant | PacifiCorp | Dayton, WA | PacifiCorp West (PACW) | 612.6 GWh | Jul 2007 | Dec 2025 | Wind |
| Marengo Solar | DG Illinois Solar, LLC | Marengo, IL | PJM Interconnection, LLC (PJM) | 3.9 GWh | Nov 2020 | Dec 2025 | Solar |
| Mare Branch | Florida Power & Light Co | TBD, FL | Florida Power & Light Co. (FPL) | 93.8 GWh | - | May 2026 | Solar |
| Marcus Hook Energy LP | Marcus Hook Energy LP | Marcus Hook, PA | PJM Interconnection, LLC (PJM) | 5.9 TWh | Nov 2004 | May 2026 | Natural Gas |
| Marco Ranch | Marco Power Inc | Jerome, ID | Idaho Power Company (IPCO) | 2.5 GWh | Jul 1985 | Oct 2025 | Water |
| Marceline | City of Marceline - (MO) | Marceline, MO | Midcontinent Independent System Operator, Inc. (MISO) | 20.0 MWh | Jul 1989 | Dec 2025 | Distillate Fuel Oil |
| Marble Solar LLC (CSG) | SolRiver Capital LLC | Albany, OR | Bonneville Power Administration (BPAT) | 4.9 GWh | Nov 2024 | Dec 2025 | Solar |
| Marble River Wind Farm | Marble River, LLC | Churubusco, NY | New York Independent System Operator (NYIS) | 470.7 GWh | Oct 2012 | May 2026 | Wind |
| Marble Falls | Lower Colorado River Authority | Marble Falls, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 23.8 GWh | Aug 1951 | Dec 2025 | Water |
| Marathon Solar Farm LLC South | Distributed Solar Development, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 5.8 GWh | Nov 2020 | Dec 2025 | Solar |
| Marathon Solar Farm II LLC North | Distributed Solar Development, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 4.2 GWh | Nov 2020 | Dec 2025 | Solar |
| Marathon Petroleum - Robinson Refinery | Onyx Asset Services Group | Robinson, IL | Midcontinent Independent System Operator, Inc. (MISO) | 5.4 GWh | May 2025 | Dec 2025 | Solar |
| Marathon Generating Plant | Florida Keys El Coop Assn, Inc | Marathon, FL | Florida Power & Light Co. (FPL) | 27.7 MWh | Dec 1957 | May 2025 | Distillate Fuel Oil |
| Marathon Bay Area Cogen | Tesoro Marketing & Refining Co. LLC (Martinez) | Martinez, CA | California Independent System Operator (CISO) | 595.6 GWh | Jan 1987 | May 2026 | Natural Gas |
| Maplewood Solar | Dominion Renewable Energy | Climax, VA | PJM Interconnection, LLC (PJM) | 203.0 GWh | Nov 2022 | May 2026 | Solar |
| Mapleton Community Solar | Mapleton Community Solar | Mapleton, MN | Midcontinent Independent System Operator, Inc. (MISO) | 5.2 GWh | May 2017 | Dec 2025 | Solar |
| Maple West | Scale Sustainable I, LLC | Amsterdam, NY | New York Independent System Operator (NYIS) | 9.8 GWh | May 2024 | Dec 2025 | Solar |
| Maple Solar | NFI Solar LLC | Vineland, NJ | PJM Interconnection, LLC (PJM) | 3.6 GWh | Apr 2011 | Dec 2025 | Solar |
| Maple Ridge Wind Farm | Flat Rock Windpower, LLC | Lowville, NY | New York Independent System Operator (NYIS) | 612.3 GWh | Nov 2005 | May 2026 | Wind |
| Maple North 2 | Scale Sustainable I, LLC | Amsterdam, NY | New York Independent System Operator (NYIS) | 6.3 GWh | May 2024 | Dec 2025 | Solar |
| Maple North 1 | Scale Sustainable I, LLC | Amsterdam, NY | New York Independent System Operator (NYIS) | 7.0 GWh | May 2024 | Dec 2025 | Solar |
| Maple Lake | Great River Energy | Maple Lake, MN | Midcontinent Independent System Operator, Inc. (MISO) | 321.0 MWh | Apr 1978 | Dec 2025 | Distillate Fuel Oil |
| Maple Flats | Invenergy Services LLC | Louisville, IL | Midcontinent Independent System Operator, Inc. (MISO) | 503.5 GWh | Oct 2024 | May 2026 | Solar |
| Maple(CSG) | Maple Street Solar 1, LLC | Bellingham, MA | ISO New England (ISNE) | 6.7 GWh | Oct 2021 | Dec 2024 | Solar |
| Maple City | Altus Power America Management, LLC | Osage Township, IA | Associated Electric Cooperative, Inc. (AECI) | 3.0 GWh | Nov 2022 | Dec 2025 | Solar |
| Manzano Solar | PNM Resources | Los Lunas, NM | Public Service Company of New Mexico (PNM) | 18.2 GWh | Sep 2013 | Dec 2025 | Solar |
| Manzana Wind LLC | Avangrid Power LLC | Rosamond, CA | California Independent System Operator (CISO) | 519.3 GWh | Nov 2012 | Dec 2025 | Wind |
| Manway Solar Farm | Strata Manager, LLC | Garland, NC | Duke Energy Progress East (CPLE) | 9.5 GWh | Nov 2015 | Dec 2025 | Solar |
| Manville Hill Road Solar | Manville Hill Road Solar LLC | Cumberland, RI | ISO New England (ISNE) | 6.7 GWh | Apr 2021 | Dec 2025 | Solar |
| Mantisi | Mantisi Solar LLC | Brockport, NY | New York Independent System Operator (NYIS) | 9.4 GWh | Feb 2024 | Dec 2025 | Solar |
| Manti Lower | City of Manti - (UT) | Manti, UT | PacifiCorp East (PACE) | 1.1 GWh | Dec 1988 | Aug 2025 | Water |
| Manteca Land PV | AES Distributed Energy | Manteca, CA | California Independent System Operator (CISO) | 1.5 GWh | Nov 2017 | Dec 2025 | Solar |
| Mansfield Mill | IPC-Mansfield Mill | Mansfield, LA | Midcontinent Independent System Operator, Inc. (MISO) | 855.5 GWh | Sep 1981 | May 2026 | Natural Gas : 52.4% Black Liquor : 33.9% Wood/Wood Waste Solids : 12.4% Tire-derived Fuels : 1.4% |
| Mannys Corners Solar 1 (CSG) | AES Clean Energy | Town of Amsterdam, NY | New York Independent System Operator (NYIS) | 7.8 GWh | Nov 2024 | Dec 2025 | Solar |
| Manning PV 1 | Strata Manager, LLC | Elon, NC | Duke Energy Carolinas (DUK) | 9.1 GWh | Nov 2018 | Dec 2025 | Solar |
| Manlius West | CVE US EI5 Manlius West LLC | Manlius, NY | New York Independent System Operator (NYIS) | 7.7 GWh | Sep 2024 | Dec 2025 | Solar |
| Manlius North | CVE US EI4 Manlius North LLC | Manlius, NY | New York Independent System Operator (NYIS) | 2.7 GWh | Sep 2024 | Dec 2025 | Solar |
| Manlius East | CVE US EI5 Manlius East LLC | Manlius, NY | New York Independent System Operator (NYIS) | 8.9 GWh | Sep 2024 | Dec 2025 | Solar |
| Mankato Energy Center | MEC Holdings, LLC | Mankato, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.5 TWh | Jun 2006 | Dec 2025 | Natural Gas |
| Manitowoc | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 178.4 GWh | May 1955 | May 2026 | Wood/Wood Waste Solids : 88.2% Petroleum Coke : 6.6% Bituminous Coal : 4.9% |
| Manitou Springs | City of Colorado Springs - (CO) | Manitou Spring, CO | Western Area Power Administration - Rocky Mountain Region (WACM) | 2.0 GWh | Apr 1927 | Dec 2025 | Water |
| Manistique | Cloverland Electric Co-op | Manistique, MI | Midcontinent Independent System Operator, Inc. (MISO) | 1.3 GWh | Jun 1960 | Dec 2025 | Distillate Fuel Oil |
| Manilus | Solar Planet Power | Manilus, NY | New York Independent System Operator (NYIS) | 6.4 GWh | Nov 2023 | Dec 2025 | Solar |
| Manheim New Jersey | Cox Enterprises | Bordentown, NJ | PJM Interconnection, LLC (PJM) | 3.3 GWh | May 2009 | Dec 2025 | Solar |
| Manheim New England | Cox Enterprises | North Dighton, MA | ISO New England (ISNE) | 2.5 GWh | Nov 2012 | Dec 2025 | Solar |
| Manchief Electric Generating Station | Public Service Co of Colorado | Brush, CO | Public Service Company of Colorado (PSCO) | 276.4 GWh | May 2000 | May 2026 | Natural Gas |
| Manchester Street | Manchester Street, LLC. | Providence, RI | ISO New England (ISNE) | 2.1 TWh | Aug 1995 | May 2026 | Natural Gas : 92.2% Distillate Fuel Oil : 7.8% |
| Manchester Community College North | Onyx Asset Services Group | Great Path, CT | ISO New England (ISNE) | 1.5 GWh | Sep 2018 | Dec 2024 | Solar |
| Manchester Community College East | Onyx Asset Services Group | Manchester, CT | ISO New England (ISNE) | 1.5 GWh | Sep 2018 | Dec 2024 | Solar |
| Manatee Solar Energy Center | Florida Power & Light Co | Parrish, FL | Florida Power & Light Co. (FPL) | 93.0 GWh | Nov 2016 | May 2026 | Solar |
| Manatee | Florida Power & Light Co | Parrish, FL | Florida Power & Light Co. (FPL) | 7.2 TWh | Sep 1976 | May 2026 | Natural Gas |
| Manalapan Village Solar | NJR Clean Energy Ventures Corporation | Manalapan, NJ | PJM Interconnection, LLC (PJM) | 3.4 GWh | Nov 2011 | Dec 2025 | Solar |
| Mammoth Pool | Southern California Edison Co | North Fork, CA | California Independent System Operator (CISO) | 568.6 GWh | Feb 1960 | May 2026 | Water |
| Mammoth Plains | Mammoth Plains Wind Project | Oakwood, OK | Southwest Power Pool (SWPP) | 623.0 GWh | Nov 2014 | Dec 2025 | Wind |
| Mammoth North Solar | Mammoth North, LLC | Knox, IN | PJM Interconnection, LLC (PJM) | 754.5 GWh | Oct 2024 | May 2026 | Solar |
| Mammoth G3 | Ormat Nevada Inc | Mammoth Lakes, CA | California Independent System Operator (CISO) | 75.3 GWh | Nov 1990 | Dec 2025 | Geothermal |
| Mammoth G2 | Ormat Nevada Inc | Mammoth Lakes, CA | California Independent System Operator (CISO) | 83.8 GWh | Nov 1990 | Dec 2025 | Geothermal |
| Mammoth G1 | Ormat Nevada Inc | Mammoth lakes, CA | California Independent System Operator (CISO) | 43.6 GWh | Nov 1984 | Dec 2025 | Geothermal |
| Malone Solar Site | Madison Energy Investments LLC | Malone, NY | New York Independent System Operator (NYIS) | 1.5 GWh | Nov 2018 | Sep 2025 | Solar |
| Malmedal Solar Garden | Altus Power America Management, LLC | Starbuck, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.6 GWh | Jun 2019 | Dec 2025 | Solar |
| Mallard | Florida Power & Light Co | Palm Bay, FL | Florida Power & Light Co. (FPL) | 78.1 GWh | - | May 2026 | Solar |
| Malech Solar Farm | County of Santa Clara - (CA) | San Jose, CA | California Independent System Operator (CISO) | 4.6 GWh | Sep 2017 | Dec 2025 | Solar |
| Malden | City of Malden - (MO) | Malden, MO | Southwest Power Pool (SWPP) | 68.0 MWh | Jul 1957 | Dec 2025 | Distillate Fuel Oil |
| Malburg | City of Vernon - (CA) | Vernon, CA | California Independent System Operator (CISO) | 291.4 GWh | Sep 2005 | May 2026 | Natural Gas |
| Malakoff Solar Project | Ellomay USA Inc | Malaloff, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 15.9 GWh | Sep 2025 | Dec 2025 | Solar |
| Malaga Power LLC | CalPeak Power, LLC | Fresno, CA | California Independent System Operator (CISO) | 4.2 GWh | Aug 2005 | May 2026 | Natural Gas |
| Major Oak Power | Major Oak Power, LLC | Bremond, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 2.3 TWh | Aug 1990 | May 2026 | Lignite Coal : 99.9% |
| Majestic II Wind | NextEra Energy Majestic Wind | Panhandle, TX | Southwest Power Pool (SWPP) | 175.7 GWh | Jul 2012 | Dec 2025 | Wind |
| Majestic 1 Wind Farm | NextEra Energy Majestic Wind | Panhandle, TX | Southwest Power Pool (SWPP) | 349.7 GWh | Dec 2008 | Dec 2025 | Wind |
| Maize | Today's Power, Inc. | Colwich, KS | Southwest Power Pool (SWPP) | 2.3 GWh | Apr 2021 | Dec 2025 | Solar |
| Mainline Windfarm | Mountain Air Projects, LLC | Glenns Ferry, ID | Idaho Power Company (IPCO) | 52.2 GWh | Nov 2012 | Dec 2025 | Wind |
| Mainely Solar (Wyman Hill Solar LLC) | Wyman Hill Solar, LLC | Rumford, ME | ISO New England (ISNE) | 5.8 GWh | Nov 2022 | Dec 2025 | Solar |
| Maine Independence Station | Casco Bay Energy Co LLC | Veazie, ME | ISO New England (ISNE) | 1.4 TWh | Apr 2000 | Dec 2025 | Natural Gas |
| Main Street Solar Project | Greenbacker Renewable Energy Corporation | Rutland, VT | ISO New England (ISNE) | 2.1 GWh | Nov 2014 | Dec 2025 | Solar |
| Main Rd Community Solar | AES Distributed Energy | Newstead, NY | ISO New England (ISNE) | 8.0 GWh | Jun 2022 | Dec 2025 | Solar |
| Main Canal Headworks | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 105.2 GWh | Dec 1986 | Oct 2025 | Water |
Summary of Power Plants By State
Figures are based on May 2026 generation numbers.| State | Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Alabama | # 8 | 77 | 11,823.92 GWh |
| Alaska | # 48 | 140 | 513.29 GWh |
| Arizona | # 14 | 196 | 9,091.99 GWh |
| Arkansas | # 25 | 117 | 4,873.33 GWh |
| California | # 4 | 1,740 | 15,360.54 GWh |
| Colorado | # 31 | 308 | 4,156.36 GWh |
| Connecticut | # 35 | 173 | 3,391.33 GWh |
| Delaware | # 49 | 35 | 236.45 GWh |
| District of Columbia | # 51 | 17 | 14.46 GWh |
| Florida | # 2 | 342 | 25,093.89 GWh |
| Georgia | # 6 | 250 | 12,138.02 GWh |
| Hawaii | # 46 | 70 | 762.50 GWh |
| Idaho | # 41 | 151 | 1,963.84 GWh |
| Illinois | # 5 | 494 | 14,816.74 GWh |
| Indiana | # 15 | 222 | 7,662.28 GWh |
| Iowa | # 21 | 297 | 5,720.38 GWh |
| Kansas | # 24 | 188 | 5,118.39 GWh |
| Kentucky | # 23 | 61 | 5,471.28 GWh |
| Louisiana | # 13 | 90 | 9,131.60 GWh |
| Maine | # 44 | 242 | 1,130.78 GWh |
| Maryland | # 37 | 228 | 3,103.37 GWh |
| Massachusetts | # 45 | 666 | 1,073.93 GWh |
| Michigan | # 11 | 276 | 9,774.25 GWh |
| Minnesota | # 28 | 790 | 4,567.82 GWh |
| Mississippi | # 20 | 60 | 6,404.61 GWh |
| Missouri | # 22 | 129 | 5,701.36 GWh |
| State | Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Montana | # 40 | 71 | 2,053.07 GWh |
| Nebraska | # 36 | 126 | 3,193.89 GWh |
| Nevada | # 33 | 117 | 3,848.29 GWh |
| New Hampshire | # 43 | 57 | 1,198.65 GWh |
| New Jersey | # 30 | 398 | 4,274.91 GWh |
| New Mexico | # 29 | 158 | 4,513.39 GWh |
| New York | # 10 | 1,064 | 10,643.78 GWh |
| North Carolina | # 9 | 913 | 11,481.42 GWh |
| North Dakota | # 34 | 59 | 3,601.34 GWh |
| Ohio | # 7 | 211 | 11,886.21 GWh |
| Oklahoma | # 17 | 144 | 7,547.66 GWh |
| Oregon | # 27 | 281 | 4,575.23 GWh |
| Pennsylvania | # 3 | 258 | 18,234.28 GWh |
| Rhode Island | # 47 | 107 | 580.94 GWh |
| South Carolina | # 16 | 209 | 7,632.32 GWh |
| South Dakota | # 42 | 53 | 1,802.78 GWh |
| Tennessee | # 19 | 99 | 6,454.94 GWh |
| Texas | # 1 | 1,019 | 50,690.02 GWh |
| Utah | # 39 | 128 | 2,809.26 GWh |
| Vermont | # 50 | 118 | 186.37 GWh |
| Virginia | # 18 | 250 | 7,445.56 GWh |
| Washington | # 12 | 134 | 9,231.20 GWh |
| West Virginia | # 32 | 41 | 4,142.41 GWh |
| Wisconsin | # 26 | 266 | 4,582.07 GWh |
| Wyoming | # 38 | 69 | 2,983.81 GWh |