Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Merwin | PacifiCorp | Ariel, WA | PacifiCorp West (PACW) | 422.6 GWh | Jun 1931 | Dec 2025 | Water |
| Blue Ridge | Tennessee Valley Authority | Blue Ridge, GA | Tennessee Valley Authority (TVA) | 23.6 GWh | Jun 1931 | Dec 2025 | Water |
| Ottumwa City of | City of Ottumwa - (IA) | Ottumwa, IA | Midcontinent Independent System Operator, Inc. (MISO) | 2.9 GWh | Jul 1931 | Dec 2025 | Water |
| Redlands Water & Power | Redlands Water & Power Company | Grand Junction, CO | Public Service Company of Colorado (PSCO) | 7.3 GWh | Jul 1931 | Dec 2024 | Water |
| Osage Dam | Union Electric Co - (MO) | Eldon, MO | Midcontinent Independent System Operator, Inc. (MISO) | 498.9 GWh | Sep 1931 | Dec 2025 | Water |
| Rock Island | PUD No 1 of Chelan County - (WA) | Wenatchee, WA | Public Utility District No. 1 of Chelan County (CHPD) | 2.6 TWh | Sep 1931 | Aug 2026 | Water |
| Prickett | Upper Peninsula Power Company | Pelkie, MI | Midcontinent Independent System Operator, Inc. (MISO) | 5.9 GWh | Oct 1931 | Dec 2025 | Water |
| Safe Harbor | Safe Harbor | Conestoga, PA | PJM Interconnection, LLC (PJM) | 860.6 GWh | Nov 1931 | Dec 2025 | Water |
| Carpenter | Entergy Arkansas LLC | Hot Springs, AR | Midcontinent Independent System Operator, Inc. (MISO) | 147.2 GWh | Dec 1931 | Dec 2025 | Water |
| Bennetts Bridge | Erie Boulevard Hydropower LP | Altmar, NY | New York Independent System Operator (NYIS) | 90.4 GWh | Dec 1931 | Dec 2025 | Water |
| Saint Marys Falls | USACE-Detroit District | Sault Ste. Marie, MI | Midcontinent Independent System Operator, Inc. (MISO) | 156.0 GWh | Jun 1932 | Dec 2025 | Water |
| Granite Falls | City of Granite Falls - (MN) | Granite Falls, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Jul 1932 | Dec 2025 | Water |
| Eagle Pass | Maverick Cty Water Control & Improvement | Eagle Pass, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 4.0 GWh | Jul 1932 | Jun 2026 | Water |
| Cashton | Village of Cashton - (WI) | Cashton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.8 MWh | Jul 1932 | Dec 2025 | Distillate Fuel Oil : 98.3% Natural Gas : 1.7% |
| High Shoals Hydro (NC) | Central Rivers Power US, LLC | High Shoals, NC | Duke Energy Carolinas (DUK) | 2.5 GWh | Jun 1934 | Aug 2026 | Water |
| Radford | City of Radford - (VA) | Radford, VA | PJM Interconnection, LLC (PJM) | 5.0 GWh | Sep 1934 | Dec 2025 | Water |
| Paris (KY) | City of Paris - (KY) | Paris, KY | Louisville Gas and Electric Company and Kentucky Utilities Company (LGEE) | 370.4 MWh | Nov 1934 | Dec 2025 | Distillate Fuel Oil |
| Messalonskee 5 | Messalonskee Stream Hydro LLC | Waterville, ME | ISO New England (ISNE) | 3.5 GWh | Dec 1934 | Dec 2025 | Water |
| Chemical | City of Holyoke Gas and Elec Dept - (MA) | Holyoke, MA | ISO New England (ISNE) | 5.1 GWh | Dec 1934 | Dec 2025 | Water |
| Allegan Dam | Consumers Energy Co - (MI) | Allegan, MI | Midcontinent Independent System Operator, Inc. (MISO) | 11.7 GWh | Dec 1934 | Dec 2025 | Water |
| Unionville City of | City of Unionville - (MO) | Unionville, MO | Associated Electric Cooperative, Inc. (AECI) | 1.0 MWh | Dec 1934 | Dec 2025 | Distillate Fuel Oil |
| North Platte | Nebraska Public Power District | North Platte, NE | Southwest Power Pool (SWPP) | 61.0 GWh | Dec 1934 | Dec 2025 | Water |
| Twin Falls (ID) | Idaho Power Co | Kimberly, ID | Idaho Power Company (IPCO) | 43.5 GWh | Feb 1935 | Dec 2025 | Water |
| London | Appalachian Power Co | Handley, WV | PJM Interconnection, LLC (PJM) | 64.1 GWh | Nov 1935 | Dec 2025 | Water |
| Marmet | Appalachian Power Co | Marmet, WV | PJM Interconnection, LLC (PJM) | 67.6 GWh | Nov 1935 | Dec 2025 | Water |
| Newport | Great Bay Hydro Corp | Newport, VT | ISO New England (ISNE) | 12.9 GWh | Dec 1935 | Dec 2025 | Water |
| Jackson (MO) | City of Jackson - (MO) | Jackson, MO | Midcontinent Independent System Operator, Inc. (MISO) | 202.0 MWh | Dec 1935 | Dec 2025 | Distillate Fuel Oil : 67.1% Natural Gas : 32.9% |
| Columbus | Loup River Public Power Dist | Columbus, NE | Southwest Power Pool (SWPP) | 124.6 GWh | Dec 1935 | Dec 2025 | Water |
| Monroe (NE) | Loup River Public Power Dist | Monroe, NE | Southwest Power Pool (SWPP) | 27.2 GWh | Dec 1935 | Dec 2025 | Water |
| Upriver Dam Hydro Plant | City of Spokane - (WA) | Spokane, WA | Avista Corporation (AVA) | 39.9 GWh | Dec 1935 | Dec 2025 | Water |
| Hawks Nest Hydro | Hawks Nest Hydro LLC | Gauley Bridge, WV | PJM Interconnection, LLC (PJM) | 366.3 GWh | May 1936 | Dec 2025 | Water |
| Cushing | City of Cushing - (OK) | Cushing, OK | Southwest Power Pool (SWPP) | 94.0 MWh | May 1936 | Dec 2025 | Natural Gas : 71.9% Distillate Fuel Oil : 28.1% |
| Norris Dam | Tennessee Valley Authority | Norris, TN | Tennessee Valley Authority (TVA) | 416.3 GWh | Jun 1936 | Dec 2025 | Water |
| Wahoo | City of Wahoo - (NE) | Wahoo, NE | Southwest Power Pool (SWPP) | 42.0 MWh | Jul 1936 | Dec 2025 | Natural Gas : 64.7% Distillate Fuel Oil : 35.3% |
| Hoover Dam (NV) | U S Bureau of Reclamation | Boulder City, NV | Western Area Power Administration - Desert Southwest Region (WALC) | 1.3 TWh | Aug 1936 | Aug 2026 | Water |
| Hoover Dam (AZ) | U S Bureau of Reclamation | Boulder City, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 1.4 TWh | Aug 1936 | Aug 2026 | Water |
| Tennessee Eastman Operations | Eastman Chemical Co-TN Ops | Kingsport, TN | PJM Interconnection, LLC (PJM) | 1.0 TWh | Aug 1936 | Aug 2026 | Natural Gas : 64.3% Bituminous Coal : 34.2% Other Gas : 0.9% Sludge Waste : 0.7% |
| Diablo | City of Seattle - (WA) | Rockport, WA | Seattle City Light (SCL) | 518.2 GWh | Sep 1936 | Dec 2025 | Water |
| Wheeler Dam | Tennessee Valley Authority | Town Creek, AL | Tennessee Valley Authority (TVA) | 1.2 TWh | Oct 1936 | Dec 2025 | Water |
| Broken Bow | City of Broken Bow - (NE) | Broken Bow, NE | Southwest Power Pool (SWPP) | 21.0 MWh | Nov 1936 | Dec 2025 | Distillate Fuel Oil : 85.8% Natural Gas : 14.2% |
| Scotland Dam | FirstLight Power Resources Services LLC | Windham, CT | ISO New England (ISNE) | 3.8 GWh | Dec 1936 | Dec 2025 | Water |
| Cataract Hydro | Brookfield White Pine Hydro LLC | Saco, ME | ISO New England (ISNE) | 23.1 GWh | Dec 1936 | Dec 2025 | Water |
| Clark Falls | Green Mountain Power Corp | Milton, VT | ISO New England (ISNE) | 14.1 GWh | Jan 1937 | Dec 2025 | Water |
| Blooming Prairie | City of Blooming Prairie - (MN) | Blooming Prairie, MN | Midcontinent Independent System Operator, Inc. (MISO) | 246.0 MWh | Apr 1937 | Dec 2025 | Distillate Fuel Oil |
| High Street Station | Town of Ipswich - (MA) | Ipswich, MA | ISO New England (ISNE) | 153.0 MWh | May 1937 | Dec 2025 | Natural Gas : 92.3% Distillate Fuel Oil : 7.7% |
| Eastman Falls | Central Rivers Power NH, LLC | Franklin, NH | ISO New England (ISNE) | 21.9 GWh | Jul 1937 | Dec 2025 | Water |
| Upper Salmon A | Idaho Power Co | Hagerman, ID | Idaho Power Company (IPCO) | 92.6 GWh | Aug 1937 | Dec 2025 | Water |
| Spanish Fork | Strawberry Water Users Assn | Spanish Fork, UT | PacifiCorp East (PACE) | 14.5 GWh | Sep 1937 | Dec 2024 | Water |
| Clear Lake | Idaho Power Co | Buhl, ID | Idaho Power Company (IPCO) | 11.8 GWh | Nov 1937 | Dec 2025 | Water |
| Ketchikan | Ketchikan Public Utilities | Ketchikan, AK | 22.6 GWh | Dec 1937 | Dec 2025 | Water | |
| West Campus Steam Plant | Penn State University | University Park, PA | PJM Interconnection, LLC (PJM) | 42.6 GWh | Dec 1937 | Aug 2026 | Natural Gas : 99.9% |
| Buchanan Dam (TX) | Lower Colorado River Authority | Buchanan Dam, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 29.2 GWh | Dec 1937 | Dec 2025 | Water |
| Inks | Lower Colorado River Authority | Buchanan Dam, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 14.3 GWh | Dec 1937 | Dec 2025 | Water |
| Tomahawk | Wisconsin Public Service Corp | Tomahawk, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.7 GWh | Dec 1937 | Dec 2025 | Water |
| Winfield | Appalachian Power Co | Winfield, WV | PJM Interconnection, LLC (PJM) | 93.0 GWh | Dec 1937 | Dec 2025 | Water |
| Humboldt Sawmill Company | Mendocino Forest Products | Scotia, CA | California Independent System Operator (CISO) | 124.1 GWh | Dec 1937 | Aug 2026 | Wood/Wood Waste Solids : 99.9% |
| Ubly | Thumb Electric Coop of Mich | Ubly, MI | Midcontinent Independent System Operator, Inc. (MISO) | 11.8 MWh | May 1938 | Dec 2024 | Distillate Fuel Oil : 63.3% Natural Gas : 36.7% |
| Pickwick Landing Dam | Tennessee Valley Authority | Pickwick Dam, TN | Tennessee Valley Authority (TVA) | 1.3 TWh | May 1938 | Dec 2025 | Water |
| Pinnacles | Northbrook Virginia Hydro, LLC | Ararat, VA | PJM Interconnection, LLC (PJM) | 21.8 GWh | May 1938 | Dec 2025 | Water |
| Bonneville | USACE Northwestern Division | Cascade Locks, OR | Bonneville Power Administration (BPAT) | 4.1 TWh | Jun 1938 | Aug 2026 | Water |
| Truman | City of Truman - (MN) | Truman, MN | Midcontinent Independent System Operator, Inc. (MISO) | 16.0 MWh | Aug 1938 | Dec 2025 | Distillate Fuel Oil |
| Selis Ksanka Qlispe | Energy Keepers Inc | Polson, MT | NorthWestern Corporation (NWMT) | 970.6 GWh | Sep 1938 | Dec 2025 | Water |
| Grandfather Falls | Wisconsin Public Service Corp | Irma, WI | Midcontinent Independent System Operator, Inc. (MISO) | 79.1 GWh | Nov 1938 | Dec 2025 | Water |
| Anheuser-Busch St Louis | Anheuser-Busch Inc | St. Louis, MO | Midcontinent Independent System Operator, Inc. (MISO) | 38.4 GWh | Dec 1938 | Aug 2026 | Natural Gas : 92.9% Other Biomass Gas : 7.1% |
| Williams Hydro | Brookfield White Pine Hydro LLC | Solon, ME | ISO New England (ISNE) | 63.5 GWh | Dec 1938 | Dec 2025 | Water |
| Guntersville | Tennessee Valley Authority | Guntersville, AL | Tennessee Valley Authority (TVA) | 509.1 GWh | Jul 1939 | Dec 2025 | Water |
| Swinging Bridge 2 | Eagle Creek Renewable Energy, LLC | Forestburgh, NY | New York Independent System Operator (NYIS) | 12.3 GWh | Jul 1939 | Dec 2025 | Water |
| Claytor | Appalachian Power Co | Radford, VA | PJM Interconnection, LLC (PJM) | 194.0 GWh | Jul 1939 | Dec 2025 | Water |
| Cumberland (WI) | City of Cumberland - (WI) | Cumberland, WI | Midcontinent Independent System Operator, Inc. (MISO) | 269.0 MWh | Jul 1939 | Dec 2025 | Distillate Fuel Oil : 62.7% Natural Gas : 37.3% |
| Seminoe | U S Bureau of Reclamation | Sinclair, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 84.5 GWh | Jul 1939 | Dec 2025 | Water |
| Anita | City of Anita - (IA) | Anita, IA | Midcontinent Independent System Operator, Inc. (MISO) | 77.4 MWh | Sep 1939 | Dec 2025 | Distillate Fuel Oil |
| Indiana Harbor West | Cleveland Cliffs | East Chicago, IN | Midcontinent Independent System Operator, Inc. (MISO) | 207.8 GWh | Sep 1939 | Dec 2025 | Natural Gas |
| Fernandina Plant | Rayonier Advanced Materials | Fernandina Beach, FL | JEA (JEA) | 177.7 GWh | Nov 1939 | Dec 2025 | Wood Waste Liquids, excluding Black Liquor : 43.6% Wood/Wood Waste Solids : 37.9% Natural Gas : 14.6% Other Biomass Solids : 3.0% Tire-derived Fuels : 0.6% |
| Ladysmith Dam | Northern States Power Co - Minnesota | Ladysmith, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.6 GWh | Dec 1939 | Dec 2025 | Water |
| French Island | Northern States Power Co - Minnesota | La Cross, WI | Midcontinent Independent System Operator, Inc. (MISO) | 68.0 GWh | Dec 1939 | Aug 2026 | Wood/Wood Waste Solids : 41.4% Non-biogenic Municipal Solid Waste : 25.3% Biogenic Municipal Solid Waste : 20.7% Distillate Fuel Oil : 12.3% |
| Angels | Utica Water & Power Authority | Angels Camp, CA | California Independent System Operator (CISO) | 5.9 GWh | Dec 1939 | Dec 2025 | Water |
| Chappell | City of Chappell - (NE) | Chappell, NE | Southwest Power Pool (SWPP) | 4.0 MWh | Dec 1939 | Dec 2025 | Distillate Fuel Oil |
| Macomb | Erie Boulevard Hydropower LP | Malone, NY | New York Independent System Operator (NYIS) | 5.7 GWh | Dec 1939 | Dec 2025 | Water |
| Yaleville | Erie Boulevard Hydropower LP | Norfolk, NY | New York Independent System Operator (NYIS) | 3.4 GWh | Dec 1939 | Jul 2025 | Water |
| Phoenix | Pacific Gas & Electric Co. | Sonora, CA | California Independent System Operator (CISO) | 4.9 GWh | Jan 1940 | Dec 2025 | Water |
| Lamoni Municipal Utilities | City of Lamoni - (IA) | Lamoni, IA | Midcontinent Independent System Operator, Inc. (MISO) | 45.0 MWh | Feb 1940 | Dec 2025 | Distillate Fuel Oil |
| Chickamauga | Tennessee Valley Authority | Chattanooga, TN | Tennessee Valley Authority (TVA) | 693.8 GWh | Feb 1940 | Dec 2025 | Water |
| Austin | Lower Colorado River Authority | Austin, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 9.7 GWh | Mar 1940 | Dec 2025 | Water |
| Hiwassee Dam | Tennessee Valley Authority | Murphy, NC | Tennessee Valley Authority (TVA) | 176.1 GWh | Apr 1940 | Aug 2026 | Water |
| Bushnell | City of Bushnell - (IL) | Bushnell, IL | Midcontinent Independent System Operator, Inc. (MISO) | 78.0 MWh | May 1940 | Dec 2025 | Distillate Fuel Oil |
| Lower No 2 | City of Idaho Falls - (ID) | Idaho Falls, ID | PacifiCorp East (PACE) | 3.8 GWh | Jul 1940 | Dec 2025 | Water |
| Montezuma | City of Montezuma - (IA) | Montezuma, IA | Midcontinent Independent System Operator, Inc. (MISO) | 115.0 MWh | Jul 1940 | Dec 2025 | Distillate Fuel Oil : 67.9% Natural Gas : 32.1% |
| Pensacola | Grand River Dam Authority | Langley, OK | Southwest Power Pool (SWPP) | 422.2 GWh | Jul 1940 | Dec 2025 | Water |
| Strawberry Creek | Lower Valley Energy Inc | Bedford, WY | Bonneville Power Administration (BPAT) | 8.8 GWh | Jul 1940 | Dec 2025 | Water |
| North Ninth Street | Rochelle Municipal Utilities - (IL) | Rochelle, IL | PJM Interconnection, LLC (PJM) | 1.3 GWh | Sep 1940 | Aug 2026 | Natural Gas : 73.3% Solar : 14.9% Distillate Fuel Oil : 11.9% |
| University of Illinois Abbott Power Plt | University of Illinois | Champaign, IL | Midcontinent Independent System Operator, Inc. (MISO) | 212.6 GWh | Oct 1940 | Dec 2025 | Natural Gas : 97.0% Bituminous Coal : 3.0% |
| Elephant Butte | U S Bureau of Reclamation | Truth or Consequences, NM | Western Area Power Administration - Rocky Mountain Region (WACM) | 16.6 GWh | Oct 1940 | Dec 2025 | Water |
| Kaukauna City Hydro | City of Kaukauna (WI) | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 31.3 GWh | Nov 1940 | Dec 2025 | Water |
| Rocky River (SC) | City of Abbeville - (SC) | Iva, SC | Duke Energy Carolinas (DUK) | 2.4 GWh | Dec 1940 | Dec 2025 | Water |
| Marshall Ford | Lower Colorado River Authority | Austin, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 45.2 GWh | Dec 1940 | Dec 2025 | Water |
| Kahoka | City of Kahoka - (MO) | Kahoka, MO | Midcontinent Independent System Operator, Inc. (MISO) | 5.0 MWh | Dec 1940 | Dec 2024 | Distillate Fuel Oil |
| Jeffrey | Central Nebraska Pub P&I Dist | Brady, NE | Southwest Power Pool (SWPP) | 81.0 GWh | Dec 1940 | Dec 2025 | Water |
| Plant No 1 Freeport | Village of Freeport - (NY) | Freeport, NY | New York Independent System Operator (NYIS) | 26.0 MWh | Dec 1940 | Dec 2025 | Distillate Fuel Oil |
| Gilman Mill | Ampersand Gilman Hydro LP | Gilman, VT | ISO New England (ISNE) | 2.2 GWh | Dec 1940 | Dec 2025 | Water |
| Drop 3 (CA) | Imperial Irrigation District | Holtville, CA | Imperial Irrigation District (IID) | 15.3 GWh | Jan 1941 | Dec 2025 | Water |
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 |