Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| M L Hibbard | ALLETE, Inc. | Duluth, MN | Midcontinent Independent System Operator, Inc. (MISO) | 97.7 GWh | May 1949 | May 2026 | Wood/Wood Waste Solids : 91.1% Subbituminous Coal : 6.8% Natural Gas : 2.1% |
| Maalaea | Maui Electric Co Ltd | Kihei, HI | 643.5 GWh | Nov 1971 | May 2026 | Distillate Fuel Oil | |
| MacArthur Waste to Energy Facility | Reworld MacArthur Renewable Energy | Ronkonkoma, NY | New York Independent System Operator (NYIS) | 52.4 GWh | Feb 1990 | May 2026 | Non-biogenic Municipal Solid Waste : 54.6% Biogenic Municipal Solid Waste : 44.6% Natural Gas : 0.8% |
| Macon Solar Power Project | Missouri Jnt Muni.Pwr Elec. Ut. Comm. | Macon, MO | Southwest Power Pool (SWPP) | 4.1 GWh | May 2015 | May 2026 | Solar |
| Macy's MD Joppa Solar Project | Northstar Macy's Maryland 2015, LLC | Joppa, MD | PJM Interconnection, LLC (PJM) | 3.0 GWh | Feb 2016 | May 2026 | Solar |
| Maddox | Southwestern Public Service Co | Hobbs, NM | Southwest Power Pool (SWPP) | 731.3 GWh | Dec 1962 | May 2026 | Natural Gas |
| Madison Fields Solar Project, LLC | Madison Fields Solar Project, LLC | Irwin, OH | PJM Interconnection, LLC (PJM) | 403.2 GWh | Dec 2023 | May 2026 | Solar |
| Madison Solar (VA) | AES Clean Energy | Locust Grove, VA | PJM Interconnection, LLC (PJM) | 122.6 GWh | Aug 2024 | May 2026 | Solar |
| Magic Valley Generating Station | Calpine Corp-Magic Valley | Edinburg, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 1.8 TWh | Jan 2002 | May 2026 | Natural Gas |
| Magic Valley Wind Farm I LLC | RWE Clean Energy | San Perlita, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 468.6 GWh | Aug 2012 | May 2026 | Wind |
| Magnet Cove | Arkansas Electric Coop Corp | Malvern, AR | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 TWh | Jun 2005 | May 2026 | Natural Gas |
| Magnolia Power | Magnolia Power Holdings LLC | Plaquemine, LA | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 TWh | Nov 2025 | May 2026 | Natural Gas |
| Magnolia Power Plant | Tennessee Valley Authority | Ashland, MS | Tennessee Valley Authority (TVA) | 6.3 TWh | Jul 2003 | May 2026 | Natural Gas |
| Magnolia Power Project | City of Burbank Water and Power - (CA) | Burbank, CA | Los Angeles Department of Water and Power (LDWP) | 1.2 TWh | Aug 2005 | May 2026 | Natural Gas |
| Magnolia Solar | Tampa Electric Co | Mulberry, FL | Tampa Electric Company (TEC) | 143.3 GWh | Nov 2021 | May 2026 | Solar |
| Magnolia Springs Solar Center | Florida Power & Light Co | Green Cove Springs, FL | Florida Power & Light Co. (FPL) | 135.1 GWh | Feb 2021 | May 2026 | Solar |
| Magpie Solar, LLC | Adapture Renewables, Inc. | Lavina, MT | NorthWestern Corporation (NWMT) | 4.8 GWh | Aug 2017 | May 2026 | Solar |
| Maiden Creek Solar Power Plant | Duke Energy Carolinas, LLC | Maiden, NC | Duke Energy Carolinas (DUK) | 119.4 GWh | Dec 2020 | May 2026 | Solar |
| 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% |
| Malaga Power LLC | CalPeak Power, LLC | Fresno, CA | California Independent System Operator (CISO) | 4.2 GWh | Aug 2005 | May 2026 | Natural Gas |
| Malburg | City of Vernon - (CA) | Vernon, CA | California Independent System Operator (CISO) | 291.4 GWh | Sep 2005 | May 2026 | Natural Gas |
| Mallard | Florida Power & Light Co | Palm Bay, FL | Florida Power & Light Co. (FPL) | 78.1 GWh | - | May 2026 | Solar |
| Mammoth North Solar | Mammoth North, LLC | Knox, IN | PJM Interconnection, LLC (PJM) | 754.5 GWh | Oct 2024 | May 2026 | Solar |
| Mammoth Pool | Southern California Edison Co | North Fork, CA | California Independent System Operator (CISO) | 568.6 GWh | Feb 1960 | May 2026 | Water |
| Manatee | Florida Power & Light Co | Parrish, FL | Florida Power & Light Co. (FPL) | 7.2 TWh | Sep 1976 | May 2026 | Natural Gas |
| Manatee Solar Energy Center | Florida Power & Light Co | Parrish, FL | Florida Power & Light Co. (FPL) | 93.0 GWh | Nov 2016 | May 2026 | Solar |
| 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% |
| 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 |
| 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% |
| 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% |
| Maple Flats | Invenergy Services LLC | Louisville, IL | Midcontinent Independent System Operator, Inc. (MISO) | 503.5 GWh | Oct 2024 | May 2026 | 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 |
| 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 |
| Marble River Wind Farm | Marble River, LLC | Churubusco, NY | New York Independent System Operator (NYIS) | 470.7 GWh | Oct 2012 | May 2026 | Wind |
| 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 |
| Marietta | Western Farmers Elec Coop, Inc | Marietta, OK | Southwest Power Pool (SWPP) | 4.6 GWh | Mar 2017 | May 2026 | 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 |
| Mariposa Energy Project | Diamond Generating Corporation | Byron, CA | California Independent System Operator (CISO) | 24.3 GWh | Sep 2012 | May 2026 | Natural Gas |
| 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 |
| 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 |
| Marsh Landing Generating Station | Marsh Landing LLC | Antioch, CA | California Independent System Operator (CISO) | 18.3 GWh | Apr 2013 | May 2026 | Natural Gas |
| Marshall Energy Facility | Tennessee Valley Authority | Calvert City, KY | Tennessee Valley Authority (TVA) | 50.2 GWh | May 2002 | May 2026 | Natural Gas |
| 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 Energy Project | Marshall Solar Energy Project | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 92.5 GWh | Dec 2016 | May 2026 | Solar |
| 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% |
| Martin | Florida Power & Light Co | Indiantown, FL | Florida Power & Light Co. (FPL) | 8.0 TWh | Nov 1980 | May 2026 | Natural Gas |
| Martin County Solar Project, LLC | Martin County Solar Project, LLC | Pilgrim, KY | PJM Interconnection, LLC (PJM) | 223.1 GWh | Nov 2024 | May 2026 | Solar |
| Martin Lake | Luminant Generation Company LLC | Tatum, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 9.0 TWh | Apr 1977 | May 2026 | Subbituminous Coal : 99.7% |
| Martin Solar Center | Arevon Energy, Inc. | Kents Store, VA | PJM Interconnection, LLC (PJM) | 7.2 GWh | Nov 2017 | May 2026 | Solar |
| Martinez Refining | Martinez Refining Co | Martinez, CA | California Independent System Operator (CISO) | 668.8 GWh | Oct 1995 | May 2026 | Natural Gas : 96.6% Other Gas : 3.4% |
| Martinsville LFG Generator | City of Martinsville - (VA) | Martinsville, VA | PJM Interconnection, LLC (PJM) | 275.0 MWh | Feb 2012 | May 2026 | Natural Gas |
| Maryland Solar | Arevon Energy, Inc. | Hagerstown, MD | PJM Interconnection, LLC (PJM) | 28.8 GWh | Aug 2013 | May 2026 | Solar |
| Maryneal Windpower | Duke Energy Renewables Services | Maryneal, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 499.2 GWh | Jun 2021 | May 2026 | Wind |
| MAS ASB Cogen Plant | Cube District Energy, LLC | Atlanta, GA | Southern Company Services, Inc. - Trans (SOCO) | 39.9 GWh | Feb 2012 | May 2026 | Natural Gas : 88.1% Landfill Gas : 11.9% |
| Matrix Pleasant Valley | Pleasant Valley Solar, LLC | Boise, ID | Idaho Power Company (IPCO) | 503.6 GWh | Feb 2025 | May 2026 | Solar |
| Maverick Creek Wind | Algonquin Power Co | Eden, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 1.7 TWh | Feb 2022 | May 2026 | Wind |
| Maverick Solar 4, LLC | Maverick Solar 4, LLC | Desert Center, CA | California Independent System Operator (CISO) | 295.5 GWh | Nov 2020 | May 2026 | Solar |
| Maverick Solar 6, LLC | Maverick Solar 6, LLC | Desert Center, CA | California Independent System Operator (CISO) | 246.1 GWh | Oct 2021 | May 2026 | Solar |
| Maverick Solar 7, LLC | Maverick Solar 7, LLC | Desert Center, CA | California Independent System Operator (CISO) | 398.2 GWh | Nov 2021 | May 2026 | Solar |
| Maverick Solar, LLC | Maverick Solar, LLC | Desert Center, CA | California Independent System Operator (CISO) | 330.2 GWh | Nov 2020 | May 2026 | Solar |
| Maverick Wind Project, LLC | Public Service Co of Oklahoma | Meno, OK | Southwest Power Pool (SWPP) | 937.9 GWh | Aug 2021 | May 2026 | Wind |
| Mayo | Duke Energy Progress - (NC) | Roxboro, NC | Duke Energy Progress East (CPLE) | 1.4 TWh | Feb 1983 | May 2026 | Bituminous Coal : 98.5% Distillate Fuel Oil : 1.5% |
| McClain Energy Facility | Oklahoma Gas & Electric Co | Newcastle, OK | Southwest Power Pool (SWPP) | 1.7 TWh | May 2001 | May 2026 | Natural Gas |
| McCrae Wind Energy II | McCrae Wind Energy II, LLC | Garden City, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 376.1 GWh | - | May 2026 | Wind |
| McFarland A Solar and Storage | AES Clean Energy | Dateland, AZ | California Independent System Operator (CISO) | 550.8 GWh | Nov 2023 | May 2026 | Solar |
| McFarland B Solar and Storage | AES Clean Energy | Dateland, AZ | California Independent System Operator (CISO) | 749.4 GWh | Nov 2024 | May 2026 | Solar |
| McGinness Hills 3 | Ormat Nevada Inc | Austin, NV | Nevada Power Company (NEVP) | 462.7 GWh | Nov 2018 | May 2026 | Geothermal |
| McGuire | Duke Energy Carolinas, LLC | Huntersville, NC | Duke Energy Carolinas (DUK) | 19.0 TWh | Aug 1981 | May 2026 | Nuclear |
| McIntosh | Georgia Power Co | Rincon, GA | Southern Company Services, Inc. - Trans (SOCO) | 50.0 GWh | Jan 1979 | May 2026 | Natural Gas : 68.3% Distillate Fuel Oil : 31.7% |
| McIntosh Combined Cycle Facility | Georgia Power Co | Rincon, GA | Southern Company Services, Inc. - Trans (SOCO) | 7.9 TWh | May 2005 | May 2026 | Natural Gas |
| McKay Bay Facility | City of Tampa (FL) | Tampa, FL | Tampa Electric Company (TEC) | 86.2 GWh | May 1985 | May 2026 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| McKinley Wind Park | DTE Electric Company | Pigeon, MI | Midcontinent Independent System Operator, Inc. (MISO) | 51.4 GWh | Nov 2012 | May 2026 | Wind |
| McMeekin | Dominion Energy South Carolina, Inc | Columbia, SC | Dominion Energy South Carolina, Inc. (SCEG) | 385.7 GWh | Jun 1958 | May 2026 | Natural Gas |
| McWilliams | PowerSouth Energy Cooperative | Gantt, AL | Southern Company Services, Inc. - Trans (SOCO) | 3.5 TWh | Nov 1954 | May 2026 | Natural Gas |
| Mead Coated Board | Mead Coated Board Inc | Mahrt, AL | Southern Company Services, Inc. - Trans (SOCO) | 726.9 GWh | Oct 1966 | May 2026 | Black Liquor : 40.1% Wood/Wood Waste Solids : 33.0% Natural Gas : 26.9% |
| Meadow Lake Wind Farm V LLC | Meadow Lake Wind Farm V LLC | Chalmers, IN | PJM Interconnection, LLC (PJM) | 346.2 GWh | Jun 2017 | May 2026 | Wind |
| Meadow Lake Wind Farm VI LLC | Meadow Lake Wind Farm VI LLC | Remington, IN | Midcontinent Independent System Operator, Inc. (MISO) | 653.8 GWh | Oct 2018 | May 2026 | Wind |
| Mechanicsville Solar | Mechanicsville Solar, LLC | Mechanicsville, VA | PJM Interconnection, LLC (PJM) | 59.9 GWh | Aug 2020 | May 2026 | Solar |
| Medford DPC Solar | SoCore Energy LLC | Medford, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.8 GWh | Jan 2017 | May 2026 | Solar |
| Medway Grid | Medway Grid LLC | Medway, MA | ISO New England (ISNE) | 19.5 GWh | - | May 2026 | Electricity used for energy storage |
| Meherrin Solar | Dominion Renewable Energy | Skippers, VA | PJM Interconnection, LLC (PJM) | 129.1 GWh | Aug 2022 | May 2026 | Solar |
| Menominee Mill Marinette | Eagle Creek Renewable Energy, LLC | Menominee, MI | Midcontinent Independent System Operator, Inc. (MISO) | 9.6 GWh | Dec 1923 | May 2026 | Water |
| Merck Rahway Power Plant | Merck & Co Inc | Rahway, NJ | PJM Interconnection, LLC (PJM) | 43.9 GWh | Dec 1976 | May 2026 | Natural Gas : 92.8% Distillate Fuel Oil : 6.8% |
| Meridian II | SR Meridian II, LLC | Meridian, MS | Tennessee Valley Authority (TVA) | 6.3 GWh | Sep 2019 | May 2026 | Solar |
| Meridian III | SR Meridian III, LLC | Meridian, MS | Southern Company Services, Inc. - Trans (SOCO) | 119.4 GWh | Nov 2019 | May 2026 | Solar |
| Meridian Wind Park | DTE Electric Company | Merrill, MI | Midcontinent Independent System Operator, Inc. (MISO) | 478.6 GWh | Mar 2023 | May 2026 | Wind |
| Merom | Hallador Power Company, LLC | Sullivan, IN | Midcontinent Independent System Operator, Inc. (MISO) | 4.5 TWh | Jan 1982 | May 2026 | Bituminous Coal : 99.7% |
| Merricourt Wind Energy Center | Otter Tail Power Co | Kulm, ND | Midcontinent Independent System Operator, Inc. (MISO) | 561.6 GWh | Nov 2020 | May 2026 | Wind |
| Merrimack | Granite Shore Power | Bow, NH | ISO New England (ISNE) | 115.9 GWh | Nov 1960 | May 2026 | Bituminous Coal : 97.6% Jet Fuel : 2.3% |
| Mesa Wind Power LLC | Mesa Wind Power LLC | North Palm Springs, CA | California Independent System Operator (CISO) | 113.7 GWh | Oct 1984 | May 2026 | Wind |
| Mesquite Creek Wind | Duke Energy Renewables Services | Lamesa, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 437.3 GWh | Mar 2015 | May 2026 | Wind |
| Mesquite Generating Station Block 1 | Salt River Project | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 3.0 TWh | May 2003 | May 2026 | Natural Gas |
| Mesquite Generating Station Block 2 | Mesquite Power LLC | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 3.8 TWh | Nov 2003 | May 2026 | Natural Gas |
| Mesquite Solar 2, LLC | RWE Clean Energy | Tonopah, AZ | California Independent System Operator (CISO) | 256.7 GWh | Nov 2016 | May 2026 | Solar |
| Mesquite Solar 3, LLC | RWE Clean Energy | Tonopah, AZ | California Independent System Operator (CISO) | 445.9 GWh | Nov 2016 | May 2026 | Solar |
| Mesquite Solar 4, LLC | RWE Clean Energy | Tonopah, AZ | California Independent System Operator (CISO) | 142.1 GWh | Dec 2023 | May 2026 | Solar |
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 |