Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Marston Mills Solar | SoCore Energy LLC | Marstons Mills, MA | ISO New England (ISNE) | 6.3 GWh | Nov 2021 | Dec 2025 | Solar |
| Martin | Florida Power & Light Co | Indiantown, FL | Florida Power & Light Co. (FPL) | 8.3 TWh | Nov 1980 | Aug 2026 | Natural Gas |
| Martin County Solar Project, LLC | Martin County Solar Project, LLC | Pilgrim, KY | PJM Interconnection, LLC (PJM) | 219.1 GWh | Nov 2024 | Aug 2026 | Solar |
| Martin Creek Farm LLC | Strata Manager, LLC | Henderson, NC | Duke Energy Progress East (CPLE) | 5.5 GWh | Feb 2014 | Dec 2025 | Solar |
| Martin Dam | Alabama Power Co | Dadeville, AL | Southern Company Services, Inc. - Trans (SOCO) | 287.2 GWh | Dec 1926 | Dec 2025 | Water |
| Martin Lake | Luminant Generation Company LLC | Tatum, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 9.2 TWh | Apr 1977 | Aug 2026 | Subbituminous Coal : 99.8% |
| Martin Limestone Solar Array | Sunstream Energy LLC | New Holland, PA | PJM Interconnection, LLC (PJM) | 1.5 GWh | Nov 2012 | Dec 2025 | Solar |
| Martin Marietta Wind Project | Sandusky Wind 33, LLC | Woodville, OH | PJM Interconnection, LLC (PJM) | 7.2 GWh | Nov 2023 | Dec 2024 | Wind |
| Martin Solar Center | Arevon Energy, Inc. | Kents Store, VA | PJM Interconnection, LLC (PJM) | 7.5 GWh | Nov 2017 | Aug 2026 | Solar |
| Martinez Refining | Martinez Refining Co | Martinez, CA | California Independent System Operator (CISO) | 658.2 GWh | Oct 1995 | Aug 2026 | Natural Gas : 96.1% Other Gas : 3.9% |
| Martinez Sulfuric Acid Regeneration Plt | Eco Services Corp. | Martinez, CA | California Independent System Operator (CISO) | 13.4 GWh | Dec 1977 | Dec 2025 | Waste Heat |
| Martins Creek Solar NC, LLC | Deriva Energy | Murphy, NC | Duke Energy Carolinas (DUK) | 1.2 GWh | Feb 2011 | Dec 2025 | Solar |
| Martinsburg CSG LLC | Dimension Energy LLC | Lowville, NY | New York Independent System Operator (NYIS) | 3.9 GWh | Nov 2024 | Dec 2025 | Solar |
| Martinsville BESS | Onsite Partners, LLC | Martinsville, VA | PJM Interconnection, LLC (PJM) | 937.0 MWh | Mar 2022 | Dec 2025 | Electricity used for energy storage |
| Martinsville LFG Generator | City of Martinsville - (VA) | Martinsville, VA | PJM Interconnection, LLC (PJM) | 252.0 MWh | Feb 2012 | Jul 2026 | Natural Gas |
| Maryland Bioenergy Center (Jessup) | Bioenergy DevCo | Jessup, MD | PJM Interconnection, LLC (PJM) | 3.0 GWh | Aug 2022 | Dec 2025 | Natural Gas |
| Maryland Solar | Arevon Energy, Inc. | Hagerstown, MD | PJM Interconnection, LLC (PJM) | 28.4 GWh | Aug 2013 | Aug 2026 | Solar |
| Maryneal Windpower | Deriva Energy | Maryneal, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 504.6 GWh | Jun 2021 | Aug 2026 | Wind |
| Marys Lake | U S Bureau of Reclamation | Estes Park, CO | Western Area Power Administration - Rocky Mountain Region (WACM) | 36.5 GWh | Apr 1951 | Dec 2025 | Water |
| MAS ASB Cogen Plant | Cube District Energy, LLC | Atlanta, GA | Southern Company Services, Inc. - Trans (SOCO) | 38.7 GWh | Feb 2012 | Aug 2026 | Natural Gas : 88.1% Landfill Gas : 11.9% |
| Mas Durham Power, LLC | Mas Durham Power, LLC | Durham, NC | Duke Energy Carolinas (DUK) | 12.3 GWh | Jan 2010 | Dec 2025 | Landfill Gas |
| Mascoma Hydro | Green Mountain Power Corp | W. Lebanon, NH | ISO New England (ISNE) | 202.0 MWh | Nov 1988 | Dec 2025 | Water |
| Mashpee Landfill Solar | Nautilus Solar Solutions | Mashpee, MA | ISO New England (ISNE) | 2.0 GWh | Aug 2014 | Dec 2025 | Solar |
| Mason Solar One LLC | Nautilus Solar Solutions | Elkton, MD | PJM Interconnection, LLC (PJM) | 1.9 GWh | Oct 2020 | Dec 2025 | Solar |
| Mass Inst Tech Cntrl Utilities/Cogen Plt | Massachusetts Inst of Tech | Cambridge, MA | ISO New England (ISNE) | 209.4 GWh | May 1995 | Dec 2025 | Natural Gas |
| Mass Midstate Solar 1 | Evergreen Wind, LLC | Warren, MA | ISO New England (ISNE) | 7.1 GWh | Apr 2014 | Dec 2025 | Solar |
| Mass Midstate Solar 2 | Evergreen Wind, LLC | Warren, MA | ISO New England (ISNE) | 7.0 GWh | Apr 2014 | Dec 2025 | Solar |
| Mass Midstate Solar 3 | Evergreen Wind, LLC | Warren, MA | ISO New England (ISNE) | 5.8 GWh | Apr 2014 | Dec 2025 | Solar |
| Massena Energy Facility | Power City Partners LP | Massena, NY | New York Independent System Operator (NYIS) | 43.6 GWh | Jun 1992 | Oct 2025 | Natural Gas |
| Masser Farms Realty Solar | Masser Farms Realty Ltd | Sacramento, PA | PJM Interconnection, LLC (PJM) | 1.1 GWh | Apr 2011 | Dec 2025 | Solar |
| Masspower | Masspower | Indian Orchard, MA | ISO New England (ISNE) | 441.7 GWh | Jun 1993 | Dec 2025 | Natural Gas |
| Maston Garden Solar | Maston Garden LLC | Kasson, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Apr 2020 | Dec 2025 | Solar |
| Matilda Hamilton Fee Hydroelectric Stati | Lock 12 Hydro Partners, LLC | Ravenna, KY | PJM Interconnection, LLC (PJM) | 8.0 GWh | Aug 2021 | Dec 2025 | Water |
| Matrix Buildings A&B (Perth Amboy) Solar | Public Service Elec & Gas Co | Perth Amboy, NJ | PJM Interconnection, LLC (PJM) | 1.4 GWh | Dec 2010 | Dec 2025 | Solar |
| Matrix Pleasant Valley | Pleasant Valley Solar, LLC | Boise, ID | Idaho Power Company (IPCO) | 491.4 GWh | Feb 2025 | Aug 2026 | Solar |
| Matrix Stults Road Solar Facility | Public Service Elec & Gas Co | South Brunswick, NJ | PJM Interconnection, LLC (PJM) | 3.6 GWh | May 2011 | Dec 2025 | Solar |
| Mattas Farms | AES Distributed Energy | Amsterdam, NY | New York Independent System Operator (NYIS) | 3.1 GWh | Oct 2018 | Dec 2025 | Solar |
| Maumee Solar | Madison Energy Investments LLC | Maumee, OH | PJM Interconnection, LLC (PJM) | 1.9 GWh | Oct 2024 | Dec 2025 | Solar |
| Maverick Creek Wind | Algonquin Power Co | Eden, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 1.7 TWh | Feb 2022 | Aug 2026 | Wind |
| Maverick Solar 4, LLC | Maverick Solar 4, LLC | Desert Center, CA | California Independent System Operator (CISO) | 292.4 GWh | Nov 2020 | Aug 2026 | Solar |
| Maverick Solar 6, LLC | Maverick Solar 6, LLC | Desert Center, CA | California Independent System Operator (CISO) | 227.9 GWh | Oct 2021 | Aug 2026 | Solar |
| Maverick Solar 7, LLC | Maverick Solar 7, LLC | Desert Center, CA | California Independent System Operator (CISO) | 396.7 GWh | Nov 2021 | Aug 2026 | Solar |
| Maverick Solar, LLC | Maverick Solar, LLC | Desert Center, CA | California Independent System Operator (CISO) | 309.2 GWh | Nov 2020 | Aug 2026 | Solar |
| Maverick Wind Project, LLC | Public Service Co of Oklahoma | Lahoma, OK | Southwest Power Pool (SWPP) | 971.3 GWh | Aug 2021 | Aug 2026 | Wind |
| Maxim | Bloom Energy | San Jose, CA | California Independent System Operator (CISO) | 6.9 GWh | Jul 2014 | Dec 2025 | Natural Gas |
| Maxton Solar, LLC | Cypress Creek Renewables | Maxton, NC | Duke Energy Carolinas (DUK) | 2.2 GWh | Aug 2016 | Dec 2025 | Solar |
| May Shannon Solar, LLC | May Shannon Solar, LLC | Clio, MI | Midcontinent Independent System Operator, Inc. (MISO) | 4.1 GWh | Nov 2020 | Dec 2025 | Solar |
| Mayberry Solar LLC | Oppidum Renewables USA, LLC | Mt. Airy, NC | Duke Energy Carolinas (DUK) | 1.5 GWh | Sep 2011 | Dec 2025 | Solar |
| Maybrook Solar, LLC (CSG) | NJR Clean Energy Ventures Corporation | Campbell Hall, NY | New York Independent System Operator (NYIS) | 8.9 GWh | Jan 2023 | Dec 2025 | Solar |
| Mayes County Solar | Leeward Asset Management, LLC | Pryor, OK | Southwest Power Pool (SWPP) | 6.6 GWh | - | Aug 2026 | Solar |
| Mayfield | City of Tacoma - (WA) | Silver Creek, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 602.5 GWh | Feb 1963 | Dec 2025 | Water |
| Mayhill Solar LLC Community Solar | Dimension Energy LLC | Saddle Brook, NJ | PJM Interconnection, LLC (PJM) | 1.8 GWh | Sep 2023 | Dec 2025 | Solar |
| Maynard PV | Terraform Arcadia | Maynard, MA | ISO New England (ISNE) | 1.2 GWh | Dec 2013 | Dec 2025 | Solar |
| Mayo | Duke Energy Progress - (NC) | Roxboro, NC | Duke Energy Progress East (CPLE) | 1.6 TWh | Feb 1983 | Aug 2026 | Bituminous Coal : 98.6% Distillate Fuel Oil : 1.4% |
| Maywood Photovoltaic Project | ENI New Energy US Inc | Indianapolis, IN | Midcontinent Independent System Operator, Inc. (MISO) | 11.5 GWh | Feb 2014 | Dec 2024 | Solar |
| MC1 Solar | MC1 Solar Farm, LLC | Williamston, NC | PJM Interconnection, LLC (PJM) | 7.7 GWh | Jul 2016 | Dec 2025 | Solar |
| MC6 Hydro Facility | MC6 Hydro Facility | Kuna, ID | Idaho Power Company (IPCO) | 8.4 GWh | Mar 2021 | Oct 2025 | Water |
| McAdoo Wind Energy LLC | Invenergy Services LLC | McAdoo, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 387.0 GWh | Aug 2008 | Dec 2025 | Wind |
| MCAGCC Cogen Plant | DOD USMC Marine Air Ground Combat | Twentynine Palms, CA | California Independent System Operator (CISO) | 68.5 GWh | Jan 2003 | Dec 2025 | Natural Gas |
| McAllister Landfill | Solar Breakers LLC | Portsmouth, RI | ISO New England (ISNE) | 1.5 GWh | Sep 2022 | Dec 2025 | Solar |
| McCallum Farm | Strata Manager, LLC | Rowland, NC | Duke Energy Progress East (CPLE) | 8.4 GWh | Aug 2013 | Dec 2025 | Solar |
| McCarthy Solar | Generate Capital | Blooming Grove, NY | New York Independent System Operator (NYIS) | 2.5 GWh | Nov 2021 | Dec 2025 | Solar |
| McCartney | City Utilities of Springfield - (MO) | Strafford, MO | Southwest Power Pool (SWPP) | 80.6 GWh | Jun 2002 | Dec 2025 | Natural Gas |
| McClain Energy Facility | Oklahoma Gas & Electric Co | Newcastle, OK | Southwest Power Pool (SWPP) | 1.8 TWh | May 2001 | Aug 2026 | Natural Gas |
| McClellan (AR) | Arkansas Electric Coop Corp | Camden, AR | Midcontinent Independent System Operator, Inc. (MISO) | 26.7 GWh | Apr 1972 | Oct 2025 | Natural Gas : 85.3% Distillate Fuel Oil : 14.7% |
| McClellan (CA) | Sacramento Municipal Util Dist | Sacramento, CA | Balancing Authority of Northern California (BANC) | 1.2 GWh | Feb 1986 | Dec 2025 | Natural Gas |
| McCleskey Cotton | Westbound Solar LLC | Dawson, GA | Southern Company Services, Inc. - Trans (SOCO) | 3.6 GWh | May 2019 | Dec 2025 | Solar |
| McClure | Modesto Irrigation District | Modesto, CA | Balancing Authority of Northern California (BANC) | 1.6 GWh | Jun 1980 | Dec 2025 | Natural Gas : 71.4% Distillate Fuel Oil : 28.6% |
| McClure Dam | Upper Peninsula Power Company | Marquette, MI | Midcontinent Independent System Operator, Inc. (MISO) | 26.5 GWh | Jan 1988 | Dec 2025 | Water |
| MCCo Solar Generating Facility | The Medical Center Company | Cleveland, OH | PJM Interconnection, LLC (PJM) | 1.1 GWh | Oct 2014 | Dec 2025 | Solar |
| McCook | Nebraska Public Power District | McCook, NE | Southwest Power Pool (SWPP) | 3.5 GWh | May 1973 | Dec 2025 | Distillate Fuel Oil |
| McCormick & Co. Inc. at Belcamp | Luminace Solar Maryland, LLC | Belcamp, MD | PJM Interconnection, LLC (PJM) | 716.0 MWh | Nov 2010 | Dec 2025 | Solar |
| McCormick NY CSG LLC | McCormick NY CSG LLC | Andover, NY | New York Independent System Operator (NYIS) | 4.0 GWh | Apr 2025 | Dec 2025 | Solar |
| McCoy Solar Energy Project Hybrid | McCoy Solar, LLC | Blythe, CA | California Independent System Operator (CISO) | 638.7 GWh | Jul 2015 | Dec 2025 | Solar |
| McCrae Wind Energy II | McCrae Wind Energy II, LLC | Garden City, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 533.7 GWh | - | Aug 2026 | Wind |
| McCullough Road Solar Farm | NJR Clean Energy Ventures Corporation | Washington Township, NJ | PJM Interconnection, LLC (PJM) | 12.9 GWh | May 2019 | Dec 2025 | Solar |
| McDonald Solar Farm, LLC | Cypress Creek Renewables | West Terre Haute, IN | Midcontinent Independent System Operator, Inc. (MISO) | 8.3 GWh | Nov 2015 | Dec 2025 | Solar |
| McDonough Solar 1, LLC CSG | McDonough Solar 1, LLC | Blandinsville, IL | Midcontinent Independent System Operator, Inc. (MISO) | 3.9 GWh | Nov 2020 | Dec 2025 | Solar |
| McDougle-Mitchell Solar Project Hybrid C | AES Distributed Energy | Charlton, MA | ISO New England (ISNE) | 6.9 GWh | Jul 2020 | Dec 2025 | Solar |
| McFadden Ridge | PacifiCorp | Rock River, WY | PacifiCorp East (PACE) | 104.8 GWh | Sep 2009 | Dec 2025 | Wind |
| McFarland A Solar and Storage | AES Clean Energy | Dateland, AZ | California Independent System Operator (CISO) | 532.4 GWh | Nov 2023 | Aug 2026 | Solar |
| McFarland B Solar and Storage | AES Clean Energy | Dateland, AZ | California Independent System Operator (CISO) | 799.3 GWh | Nov 2024 | Aug 2026 | Solar |
| McGinness Hills | Ormat Nevada Inc | Austin, NV | Nevada Power Company (NEVP) | 568.6 GWh | Apr 2012 | Dec 2025 | Geothermal |
| McGinness Hills 3 | Ormat Nevada Inc | Austin, NV | Nevada Power Company (NEVP) | 463.0 GWh | Nov 2018 | Aug 2026 | Geothermal |
| McGoogan Farm, LLC | Strata Manager, LLC | Lumber Bridge, NC | Duke Energy Carolinas (DUK) | 9.2 GWh | Jul 2015 | Dec 2025 | Solar |
| McGrath Peaker | Southern California Edison Co | Oxnard, CA | California Independent System Operator (CISO) | 2.6 GWh | Oct 2012 | Dec 2025 | Natural Gas |
| McGraw Hill Solar | NJR Clean Energy Ventures Corporation | East Windsor Township, NJ | PJM Interconnection, LLC (PJM) | 16.1 GWh | Nov 2011 | Dec 2025 | Solar |
| McGregor | City of McGregor- (IA) | McGregor, IA | Midcontinent Independent System Operator, Inc. (MISO) | 11.0 MWh | Nov 1941 | Dec 2025 | Distillate Fuel Oil |
| McGrigor Farm Solar | Carolina Solar Energy LLC | Clinton, NC | Duke Energy Progress East (CPLE) | 9.4 GWh | Sep 2019 | Nov 2025 | Solar |
| McGuire | Duke Energy Carolinas, LLC | Huntersville, NC | Duke Energy Carolinas (DUK) | 19.0 TWh | Aug 1981 | Aug 2026 | Nuclear |
| McHenry Solar | Ecos Energy LLC | Hampton, CT | ISO New England (ISNE) | 1.6 GWh | Sep 2021 | Dec 2025 | Solar |
| Mcindoes | Great River Hydro, LLC | Barnet, VT | ISO New England (ISNE) | 39.1 GWh | Dec 1930 | Dec 2025 | Water |
| McIntosh | Georgia Power Co | Rincon, GA | Southern Company Services, Inc. - Trans (SOCO) | 41.3 GWh | Jan 1979 | Aug 2026 | Natural Gas : 61.6% Distillate Fuel Oil : 38.4% |
| McIntosh (AL) | PowerSouth Energy Cooperative | McIntosh, AL | Southern Company Services, Inc. - Trans (SOCO) | 315.3 GWh | May 1991 | Dec 2025 | Natural Gas : 99.9% |
| McIntosh Combined Cycle Facility | Georgia Power Co | Rincon, GA | Southern Company Services, Inc. - Trans (SOCO) | 7.9 TWh | May 2005 | Aug 2026 | Natural Gas |
| McIntosh Solar | Georgia Power Co | Rincon, GA | Southern Company Services, Inc. - Trans (SOCO) | 20.7 GWh | Jun 2024 | Dec 2025 | Solar |
| McKay Bay Facility | City of Tampa (FL) | Tampa, FL | Tampa Electric Company (TEC) | 83.8 GWh | May 1985 | Aug 2026 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| McKee City Solar Phase 2 | MN8 Energy LLC | Egg Harbor Township, NJ | PJM Interconnection, LLC (PJM) | 922.0 MWh | Nov 2011 | Dec 2024 | Solar |
| Mckeever | Power Depot Group A, LLC | Fresno, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 80.0 MWh | Sep 2013 | Dec 2025 | Distillate Fuel Oil |
| McKenzie Farm | Strata Manager, LLC | Whiteville, NC | Duke Energy Progress East (CPLE) | 9.3 GWh | Nov 2013 | Dec 2025 | Solar |
Summary of Power Plants By State
Figures are based on August 2026 generation numbers.| State | Rank | Active Plants | Aug 2026 Generation |
|---|---|---|---|
| Alabama | # 9 | 80 | 13,897.78 GWh |
| Alaska | # 48 | 146 | 672.99 GWh |
| Arizona | # 10 | 203 | 13,589.64 GWh |
| Arkansas | # 23 | 122 | 7,027.75 GWh |
| California | # 3 | 1,840 | 24,164.86 GWh |
| Colorado | # 30 | 321 | 5,322.30 GWh |
| Connecticut | # 34 | 180 | 4,400.98 GWh |
| Delaware | # 49 | 35 | 555.40 GWh |
| District of Columbia | # 51 | 19 | 21.71 GWh |
| Florida | # 2 | 345 | 28,185.93 GWh |
| Georgia | # 6 | 261 | 15,282.60 GWh |
| Hawaii | # 47 | 73 | 863.62 GWh |
| Idaho | # 43 | 152 | 1,754.56 GWh |
| Illinois | # 5 | 556 | 18,683.36 GWh |
| Indiana | # 17 | 226 | 9,970.06 GWh |
| Iowa | # 27 | 301 | 5,759.64 GWh |
| Kansas | # 26 | 191 | 6,368.18 GWh |
| Kentucky | # 21 | 63 | 7,221.26 GWh |
| Louisiana | # 14 | 93 | 10,670.45 GWh |
| Maine | # 45 | 250 | 1,285.31 GWh |
| Maryland | # 37 | 236 | 3,745.22 GWh |
| Massachusetts | # 41 | 679 | 1,958.59 GWh |
| Michigan | # 12 | 288 | 12,064.19 GWh |
| Minnesota | # 32 | 794 | 5,047.38 GWh |
| Mississippi | # 19 | 62 | 8,358.70 GWh |
| Missouri | # 22 | 134 | 7,125.71 GWh |
| State | Rank | Active Plants | Aug 2026 Generation |
|---|---|---|---|
| Montana | # 40 | 72 | 2,266.60 GWh |
| Nebraska | # 39 | 132 | 3,448.00 GWh |
| Nevada | # 29 | 117 | 5,523.31 GWh |
| New Hampshire | # 42 | 60 | 1,901.10 GWh |
| New Jersey | # 25 | 409 | 6,440.88 GWh |
| New Mexico | # 33 | 166 | 4,571.47 GWh |
| New York | # 11 | 1,087 | 13,130.21 GWh |
| North Carolina | # 8 | 921 | 14,263.55 GWh |
| North Dakota | # 38 | 62 | 3,579.89 GWh |
| Ohio | # 7 | 216 | 14,448.49 GWh |
| Oklahoma | # 13 | 153 | 10,965.38 GWh |
| Oregon | # 31 | 292 | 5,257.14 GWh |
| Pennsylvania | # 4 | 270 | 23,772.83 GWh |
| Rhode Island | # 46 | 108 | 924.31 GWh |
| South Carolina | # 16 | 214 | 9,989.71 GWh |
| South Dakota | # 44 | 53 | 1,486.65 GWh |
| Tennessee | # 18 | 101 | 8,430.26 GWh |
| Texas | # 1 | 1,069 | 65,726.98 GWh |
| Utah | # 36 | 131 | 4,074.82 GWh |
| Vermont | # 50 | 118 | 175.56 GWh |
| Virginia | # 15 | 255 | 10,241.54 GWh |
| Washington | # 20 | 137 | 8,189.60 GWh |
| West Virginia | # 28 | 41 | 5,593.74 GWh |
| Wisconsin | # 24 | 272 | 6,683.19 GWh |
| Wyoming | # 35 | 71 | 4,322.19 GWh |