Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Manning PV 1 | Strata Manager, LLC | Elon, NC | Duke Energy Carolinas (DUK) | 9.1 GWh | Nov 2018 | Dec 2025 | Solar |
| 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 |
| 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% |
| Manteca Land PV | AES Distributed Energy | Manteca, CA | California Independent System Operator (CISO) | 1.5 GWh | Nov 2017 | Dec 2025 | Solar |
| Manti Lower | City of Manti - (UT) | Manti, UT | PacifiCorp East (PACE) | 1.1 GWh | Dec 1988 | Aug 2025 | Water |
| Mantisi | Mantisi Solar LLC | Brockport, NY | New York Independent System Operator (NYIS) | 9.4 GWh | Feb 2024 | 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 |
| Manway Solar Farm | Strata Manager, LLC | Garland, NC | Duke Energy Progress East (CPLE) | 9.5 GWh | Nov 2015 | Dec 2025 | Solar |
| Manzana Wind LLC | Avangrid Power LLC | Rosamond, CA | California Independent System Operator (CISO) | 519.3 GWh | Nov 2012 | Dec 2025 | Wind |
| Manzano Solar | PNM Resources | Los Lunas, NM | Public Service Company of New Mexico (PNM) | 18.2 GWh | Sep 2013 | Dec 2025 | Solar |
| Maple City | Altus Power America Management, LLC | Osage Township, IA | Associated Electric Cooperative, Inc. (AECI) | 3.0 GWh | Nov 2022 | Dec 2025 | 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) | 503.5 GWh | Oct 2024 | May 2026 | 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 North 1 | Scale Sustainable I, LLC | Amsterdam, NY | New York Independent System Operator (NYIS) | 7.0 GWh | May 2024 | Dec 2025 | Solar |
| Maple North 2 | Scale Sustainable I, LLC | Amsterdam, NY | New York Independent System Operator (NYIS) | 6.3 GWh | May 2024 | 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 Solar | NFI Solar LLC | Vineland, NJ | PJM Interconnection, LLC (PJM) | 3.6 GWh | Apr 2011 | 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 |
| Mapleton Community Solar | Mapleton Community Solar | Mapleton, MN | Midcontinent Independent System Operator, Inc. (MISO) | 5.2 GWh | May 2017 | Dec 2025 | Solar |
| Maplewood Solar | Dominion Renewable Energy | Climax, VA | PJM Interconnection, LLC (PJM) | 203.0 GWh | Nov 2022 | May 2026 | Solar |
| 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 |
| 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 Petroleum - Robinson Refinery | Onyx Asset Services Group | Robinson, IL | Midcontinent Independent System Operator, Inc. (MISO) | 5.4 GWh | May 2025 | 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 Solar Farm LLC South | Distributed Solar Development, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 5.8 GWh | Nov 2020 | Dec 2025 | Solar |
| Marble Falls | Lower Colorado River Authority | Marble Falls, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 23.8 GWh | Aug 1951 | Dec 2025 | Water |
| Marble River Wind Farm | Marble River, LLC | Churubusco, NY | New York Independent System Operator (NYIS) | 470.7 GWh | Oct 2012 | May 2026 | Wind |
| Marble Solar LLC (CSG) | SolRiver Capital LLC | Albany, OR | Bonneville Power Administration (BPAT) | 4.9 GWh | Nov 2024 | Dec 2025 | Solar |
| Marceline | City of Marceline - (MO) | Marceline, MO | Midcontinent Independent System Operator, Inc. (MISO) | 20.0 MWh | Jul 1989 | Dec 2025 | Distillate Fuel Oil |
| Marco Ranch | Marco Power Inc | Jerome, ID | Idaho Power Company (IPCO) | 2.5 GWh | Jul 1985 | Oct 2025 | Water |
| Marcus Hook Energy LP | Marcus Hook Energy LP | Marcus Hook, PA | PJM Interconnection, LLC (PJM) | 5.9 TWh | Nov 2004 | May 2026 | Natural Gas |
| Mare Branch | Florida Power & Light Co | TBD, FL | Florida Power & Light Co. (FPL) | 93.8 GWh | - | May 2026 | Solar |
| Marengo Solar | DG Illinois Solar, LLC | Marengo, IL | PJM Interconnection, LLC (PJM) | 3.9 GWh | Nov 2020 | Dec 2025 | Solar |
| Marengo Wind Plant | PacifiCorp | Dayton, WA | PacifiCorp West (PACW) | 612.6 GWh | Jul 2007 | Dec 2025 | Wind |
| Mariah del Norte | BHE Renewables, LLC | Friona, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 840.8 GWh | Oct 2016 | Dec 2025 | Wind |
| Mariani Packing Vacaville Solar | SunE U6 Holdings LLC | Vacaville, CA | California Independent System Operator (CISO) | 586.0 MWh | Oct 2008 | 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 |
| Maricopa West Solar PV, LLC | Onward Energy | Taft, CA | California Independent System Operator (CISO) | 50.3 GWh | Nov 2015 | Dec 2025 | Solar |
| Marietta | Western Farmers Elec Coop, Inc | Marietta, OK | Southwest Power Pool (SWPP) | 4.6 GWh | Mar 2017 | May 2026 | Solar |
| Marigold Community Solar Garden, LLC | Geronimo Power | Waterville, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Dec 2020 | Dec 2025 | Solar |
| Marin Clean Energy Solar One | AES Distributed Energy | Richmond, CA | California Independent System Operator (CISO) | 21.2 GWh | Nov 2017 | 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 |
| Marina South | Altus Power America Management, LLC | San Pedro, CA | California Independent System Operator (CISO) | 1.8 GWh | Nov 2020 | Dec 2025 | Solar |
| Marine Corps Logistics Base Solar | Georgia Power Co | Albany, GA | Southern Company Services, Inc. - Trans (SOCO) | 55.0 GWh | Jan 2018 | 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% |
| Marion County Solar Project | Marion County Solar Project, LLC | Marion, OH | PJM Interconnection, LLC (PJM) | 50.2 GWh | - | May 2026 | Solar |
| Marion Garden | Excelsior Energy Capital | Faribault, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.6 GWh | Oct 2020 | 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 Solar 4b LLC | Pivot Energy | Sandoval, IL | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 GWh | Apr 2024 | Dec 2025 | Solar |
| Marion Solar LNG | Marion Solar LLC | Indianapolis, IN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Sep 2015 | 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 |
| Mariposa Solar Center LLC | Heelstone Energy Holdings, LLC | Stanley, NC | Duke Energy Carolinas (DUK) | 8.5 GWh | Aug 2016 | 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 |
| Market Farm | Headwater Energy, LLC | Reidsville, NC | Duke Energy Carolinas (DUK) | 7.5 GWh | Sep 2014 | Dec 2025 | Solar |
| Market Street Gardiner Solar, LLC | REA Investments, LLC | Gardiner, ME | ISO New England (ISNE) | 5.9 GWh | Jun 2022 | Dec 2025 | Solar |
| Markham | Grand River Dam Authority | Locust Grove, OK | Southwest Power Pool (SWPP) | 288.1 GWh | Apr 1964 | Dec 2025 | Water |
| Markland | Duke Energy Indiana, LLC | Florence, IN | Midcontinent Independent System Operator, Inc. (MISO) | 252.6 GWh | Dec 1966 | Dec 2025 | Water |
| 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 |
| Marlboro Mill | Domtar Paper Company Bennettsville | Bennettsville, SC | South Carolina Public Service Authority (SC) | 213.5 GWh | Aug 2010 | Dec 2025 | Black Liquor : 80.1% Wood/Wood Waste Solids : 19.9% |
| Marlboro Mushrooms Solar Field | Marlboro Mushroom | West Grove, PA | PJM Interconnection, LLC (PJM) | 1.3 GWh | Oct 2011 | Dec 2025 | Solar |
| Marlborough Solar | Marlborough Solar, LLC | Milton, NY | ISO New England (ISNE) | 3.2 GWh | Feb 2021 | Dec 2025 | Solar |
| Marlin Solar | Cypress Creek Renewables | Marlin, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 8.8 GWh | Nov 2017 | Dec 2025 | Solar |
| Marlow Solar, LLC CSG | Marlow Solar, LLC | Bluford, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.3 GWh | Nov 2020 | Dec 2025 | Solar |
| Marlowe Solar | Monongahela Power Co | Falling Waters, WV | PJM Interconnection, LLC (PJM) | 7.8 GWh | Mar 2025 | Dec 2025 | Solar |
| Marmas Solar CSG | Geronimo Power | St. Cloud, MN | Midcontinent Independent System Operator, Inc. (MISO) | 4.9 GWh | Mar 2018 | Dec 2025 | Solar |
| Marmet | Appalachian Power Co | Marmet, WV | PJM Interconnection, LLC (PJM) | 67.6 GWh | Nov 1935 | Dec 2025 | Water |
| Marquette Energy Center | City of Marquette - (MI) | Marquette, MI | Midcontinent Independent System Operator, Inc. (MISO) | 163.7 GWh | Jul 2017 | Dec 2025 | Natural Gas : 98.9% Distillate Fuel Oil : 1.1% |
| Mars Hill | Greenbacker Renewable Energy Corporation | Mars Hill, ME | ISO New England (ISNE) | 3.8 GWh | Oct 2024 | Dec 2025 | Solar |
| Mars Hill Wind Farm Project | Evergreen Wind, LLC | Mars Hill, ME | (NBSO) | 128.3 GWh | Feb 2007 | Dec 2025 | Wind |
| Mars Solar | Sol Systems | Bruni, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 20.4 GWh | Jul 2019 | Dec 2025 | Solar |
| Mars Wrigley Confectionery US, LLC | Mars Wrigley Confectionery US, LLC | Hackettstown, NJ | PJM Interconnection, LLC (PJM) | 55.2 GWh | Sep 1984 | Dec 2025 | Natural Gas |
| Marsh Hill Wind Farm | Invenergy Services LLC | Jasper, NY | New York Independent System Operator (NYIS) | 55.1 GWh | Oct 2014 | Dec 2025 | Wind |
| Marsh Landing Generating Station | Marsh Landing LLC | Antioch, CA | California Independent System Operator (CISO) | 18.3 GWh | Apr 2013 | May 2026 | Natural Gas |
| Marsh Run Generation Facility | Old Dominion Electric Coop | Remington, VA | PJM Interconnection, LLC (PJM) | 687.4 GWh | Aug 2004 | Dec 2025 | Natural Gas : 94.4% Distillate Fuel Oil : 5.6% |
| Marsh Valley Development | Marsh Valley Development Inc | McCammon, ID | PacifiCorp East (PACE) | 3.5 GWh | Mar 1993 | Dec 2025 | Water |
| Marshall | Alaska Village Elec Coop, Inc | Marshall, AK | 1.7 GWh | May 1994 | Dec 2025 | Distillate Fuel Oil | |
| Marshall Energy Facility | Tennessee Valley Authority | Calvert City, KY | Tennessee Valley Authority (TVA) | 50.2 GWh | May 2002 | May 2026 | Natural Gas |
| Marshall Ford | Lower Colorado River Authority | Austin, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 45.2 GWh | Dec 1940 | Dec 2025 | Water |
| Marshall (IL) | City of Marshall - (IL) | Marshall, IL | Midcontinent Independent System Operator, Inc. (MISO) | 167.0 MWh | Mar 2002 | Dec 2025 | Distillate Fuel Oil |
| Marshall (MI) | City of Marshall - (MI) | Marshall, MI | Midcontinent Independent System Operator, Inc. (MISO) | 638.0 MWh | May 1928 | Dec 2025 | Water |
| Marshall (MN) | City of Marshall - (MN) | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 93.1 MWh | Jun 1969 | Dec 2025 | Distillate Fuel Oil |
| Marshall (MO) | City of Marshall - (MO) | Marshall, MO | Southwest Power Pool (SWPP) | 1.3 GWh | May 1948 | Dec 2025 | Natural Gas : 94.1% Distillate Fuel Oil : 6.0% |
| Marshall (NC) | Duke Energy Carolinas, LLC | Terrell, NC | Duke Energy Carolinas (DUK) | 7.5 TWh | Feb 1965 | May 2026 | Bituminous Coal : 56.9% Natural Gas : 43.1% |
| Marshall Solar | Marshall Solar | Hartsville, SC | Duke Energy Progress East (CPLE) | 2.2 GWh | Jun 2022 | Dec 2025 | Solar |
| Marshall Solar Energy Project | Marshall Solar Energy Project | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 92.5 GWh | Dec 2016 | May 2026 | Solar |
| Marshall Solar Farm (MO) | Missouri Jnt Muni.Pwr Elec. Ut. Comm. | Marshall, MO | Southwest Power Pool (SWPP) | 4.0 GWh | Nov 2016 | Dec 2025 | Solar |
| Marshall Solar Plus LLC | Western Minnesota Mun Pwr Agny | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 17.2 GWh | Nov 2024 | Dec 2025 | Solar |
| Marshall Wind 1 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.2 GWh | Nov 2007 | Dec 2025 | Wind |
| Marshall Wind 2 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 5.3 GWh | Nov 2007 | Nov 2025 | Wind |
| Marshall Wind 3 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 4.0 GWh | Nov 2007 | Dec 2025 | Wind |
| Marshall Wind 4 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 3.9 GWh | Nov 2007 | Dec 2025 | Wind |
| Marshall Wind 5 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Nov 2007 | Dec 2025 | Wind |
| Marshall Wind 6 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.9 GWh | Nov 2007 | Dec 2025 | Wind |
| Marshall Wind Farm | BHE Renewables, LLC | Frankfort, KS | Southwest Power Pool (SWPP) | 277.1 GWh | Apr 2016 | Dec 2025 | Wind |
| Marshalltown | Interstate Power and Light Co | Marshalltown, IA | Midcontinent Independent System Operator, Inc. (MISO) | 20.3 GWh | May 1978 | Dec 2025 | Natural Gas |
| Marshalltown Generating Station | Interstate Power and Light Co | Marshalltown, IA | Midcontinent Independent System Operator, Inc. (MISO) | 3.1 TWh | Mar 2017 | May 2026 | Natural Gas : 99.9% |
| Marshfield 6 | Green Mountain Power Corp | Marshfield, VT | ISO New England (ISNE) | 3.9 GWh | Dec 1926 | Dec 2025 | Water |
| Marshfield PV | Terraform Arcadia | Marshfield, MA | ISO New England (ISNE) | 4.6 GWh | Nov 2013 | Dec 2025 | Solar |
| Marshfield Utilities Gas Plant | City of Marshfield - (WI) | Marshfield, WI | Midcontinent Independent System Operator, Inc. (MISO) | 18.8 GWh | May 2011 | Dec 2025 | Natural Gas |
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 |