Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Granby | Erie Boulevard Hydropower LP | Fulton, NY | New York Independent System Operator (NYIS) | 33.1 GWh | Dec 1982 | Dec 2025 | Water |
| Hannawa | Erie Boulevard Hydropower LP | Pierrepont, NY | New York Independent System Operator (NYIS) | 44.1 GWh | Dec 1913 | Dec 2025 | Water |
| Herrings | Erie Boulevard Hydropower LP | Carthage, NY | New York Independent System Operator (NYIS) | 18.4 GWh | Dec 1923 | Dec 2025 | Water |
| Heuvelton | Erie Boulevard Hydropower LP | Village of Heuvelton, NY | New York Independent System Operator (NYIS) | 4.2 GWh | Dec 1923 | Dec 2025 | Water |
| High Dam | Oswego, City of - (NY) | Oswego, NY | New York Independent System Operator (NYIS) | 19.1 GWh | Jul 1928 | Dec 2025 | Water |
| High Falls - Croghan NY | Erie Boulevard Hydropower LP | Croghan, NY | New York Independent System Operator (NYIS) | 25.0 GWh | Dec 1924 | Dec 2025 | Water |
| East Norfolk | Erie Boulevard Hydropower LP | Norfolk, NY | New York Independent System Operator (NYIS) | 21.1 GWh | Dec 1927 | Dec 2025 | Water |
| Hydraulic Race | Erie Boulevard Hydropower LP | Lockport, NY | New York Independent System Operator (NYIS) | 6.9 GWh | Dec 1941 | Dec 2025 | Water |
| Inghams | Erie Boulevard Hydropower LP | Little Falls, NY | New York Independent System Operator (NYIS) | 25.6 GWh | Dec 1911 | 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 |
| J P Priest | USCE-Nashville District | Nashville, TN | Tennessee Valley Authority (TVA) | 60.4 GWh | Jan 1970 | Dec 2025 | Water |
| Old Hickory | USCE-Nashville District | Hendersonville, TN | Tennessee Valley Authority (TVA) | 324.7 GWh | Mar 1957 | Dec 2025 | Water |
| Dale Hollow | USCE-Nashville District | Celina, TN | Tennessee Valley Authority (TVA) | 120.9 GWh | Nov 1948 | Dec 2025 | Water |
| Cordell Hull | USCE-Nashville District | Carthage, TN | Tennessee Valley Authority (TVA) | 441.3 GWh | Jul 1973 | Dec 2025 | Water |
| Wilbur | Tennessee Valley Authority | Elizabethon, TN | Tennessee Valley Authority (TVA) | 14.2 GWh | Nov 1912 | Dec 2025 | Water |
| Wylie | Duke Energy Carolinas, LLC | Fort Mill, SC | Duke Energy Carolinas (DUK) | 98.6 GWh | Jul 1925 | Dec 2025 | Water |
| Watauga | Tennessee Valley Authority | Elizabethton, TN | Tennessee Valley Authority (TVA) | 121.6 GWh | Jul 1949 | Sep 2025 | Water |
| Tims Ford | Tennessee Valley Authority | Winchester, TN | Tennessee Valley Authority (TVA) | 41.2 GWh | Feb 1972 | Dec 2025 | Water |
| Black River | Erie Boulevard Hydropower LP | Black River, NY | New York Independent System Operator (NYIS) | 32.5 GWh | Dec 1919 | Dec 2025 | Water |
| Allens Falls | Erie Boulevard Hydropower LP | Parishville, NY | New York Independent System Operator (NYIS) | 21.2 GWh | Dec 1926 | Dec 2025 | Water |
| Beardslee | Erie Boulevard Hydropower LP | Little Falls, NY | New York Independent System Operator (NYIS) | 42.8 GWh | Dec 1923 | Dec 2025 | Water |
| Belfort | Erie Boulevard Hydropower LP | Croghan, NY | New York Independent System Operator (NYIS) | 10.4 GWh | Dec 1902 | 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 |
| Marshall Ford | Lower Colorado River Authority | Austin, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 45.2 GWh | Dec 1940 | Dec 2025 | Water |
| Marble Falls | Lower Colorado River Authority | Marble Falls, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 23.8 GWh | Aug 1951 | 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 |
| Granite Shoals | Lower Colorado River Authority | Marble Falls, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 36.8 GWh | May 1951 | Dec 2025 | Water |
| 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 |
| Austin | Lower Colorado River Authority | Austin, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 9.7 GWh | Mar 1940 | Dec 2025 | Water |
| Dunlap TP 1 | Guadalupe Blanco River Authority | New Brannfels, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 3.7 GWh | Dec 1926 | Dec 2025 | Water |
| Watts Bar Hydro | Tennessee Valley Authority | Spring City, TN | Tennessee Valley Authority (TVA) | 865.4 GWh | Feb 1942 | Dec 2025 | Water |
| Blake | Erie Boulevard Hydropower LP | Parishville, NY | New York Independent System Operator (NYIS) | 48.2 GWh | Dec 1956 | Dec 2025 | Water |
| Browns Falls | Erie Boulevard Hydropower LP | Oswegatchie, NY | New York Independent System Operator (NYIS) | 49.2 GWh | Dec 1922 | Dec 2025 | Water |
| Chasm | Erie Boulevard Hydropower LP | Malone, NY | New York Independent System Operator (NYIS) | 20.7 GWh | Dec 1912 | Dec 2025 | Water |
| Colton | Erie Boulevard Hydropower LP | Pierrepont, NY | New York Independent System Operator (NYIS) | 154.2 GWh | Dec 1917 | Dec 2025 | Water |
| Deferiet | Erie Boulevard Hydropower LP | Deferiet, NY | New York Independent System Operator (NYIS) | 40.2 GWh | Dec 1924 | Dec 2025 | Water |
| Eagle | Erie Boulevard Hydropower LP | Croghan, NY | New York Independent System Operator (NYIS) | 28.4 GWh | Dec 1913 | Dec 2025 | Water |
| Eel Weir | Erie Boulevard Hydropower LP | Oswegatchie, NY | New York Independent System Operator (NYIS) | 7.6 GWh | Dec 1927 | Dec 2025 | Water |
| Effley | Erie Boulevard Hydropower LP | Croghan, NY | New York Independent System Operator (NYIS) | 13.8 GWh | Dec 1901 | Dec 2025 | Water |
| Elmer | Erie Boulevard Hydropower LP | Croghan, NY | New York Independent System Operator (NYIS) | 10.0 GWh | Dec 1915 | Dec 2025 | Water |
| Ephratah | Erie Boulevard Hydropower LP | Saint Johnsville, NY | New York Independent System Operator (NYIS) | 6.1 GWh | Dec 1910 | Dec 2025 | Water |
| Parishville | Erie Boulevard Hydropower LP | Parishville, NY | New York Independent System Operator (NYIS) | 11.8 GWh | Dec 1924 | Dec 2025 | Water |
| Big Bend Dam | USACE-Omaha | Chamberlain, SD | Southwest Power Pool (SWPP) | 745.8 GWh | Aug 1964 | Dec 2025 | Water |
| South Holston | Tennessee Valley Authority | Bristol, TN | Tennessee Valley Authority (TVA) | 121.5 GWh | Jan 1951 | Dec 2025 | Water |
| Oahe | USACE-Omaha | Pierre, SD | Southwest Power Pool (SWPP) | 2.0 TWh | Mar 1962 | Dec 2025 | Water |
| Norfolk | Erie Boulevard Hydropower LP | Norfolk, NY | New York Independent System Operator (NYIS) | 22.0 GWh | Dec 1927 | Dec 2025 | Water |
| Norwood | Erie Boulevard Hydropower LP | Norwood, NY | New York Independent System Operator (NYIS) | 11.6 GWh | Dec 1927 | Dec 2025 | Water |
| Oswego Falls East | Erie Boulevard Hydropower LP | Fulton, NY | New York Independent System Operator (NYIS) | 22.2 GWh | Dec 1913 | Dec 2025 | Water |
| J Strom Thurmond | USCE-Savannah District | Clarks Hill, SC | Southeastern Power Administration (SEPA) | 566.0 GWh | Dec 1952 | Dec 2025 | Water |
| Spillway | South Carolina Public Service Authority | Pineville, SC | South Carolina Public Service Authority (SC) | 4.8 GWh | Jul 1950 | Dec 2025 | Water |
| Jefferies | South Carolina Public Service Authority | Moncks Corner, SC | South Carolina Public Service Authority (SC) | 233.5 GWh | Nov 1942 | Dec 2025 | Water |
| Oswego Falls West | Erie Boulevard Hydropower LP | Fulton, NY | New York Independent System Operator (NYIS) | 3.4 GWh | Dec 1913 | Dec 2025 | Water |
| Rocky River (SC) | City of Abbeville - (SC) | Iva, SC | Duke Energy Carolinas (DUK) | 2.4 GWh | Dec 1940 | Dec 2025 | Water |
| Fort Randall | USACE-Omaha | Pickstown, SD | Southwest Power Pool (SWPP) | 1.4 TWh | Feb 1954 | Dec 2025 | Water |
| Piercefield | Erie Boulevard Hydropower LP | Piercefield, NY | New York Independent System Operator (NYIS) | 11.4 GWh | Dec 1923 | Dec 2025 | Water |
| Prospect | Erie Boulevard Hydropower LP | Prospect, NY | New York Independent System Operator (NYIS) | 55.2 GWh | Dec 1958 | Dec 2025 | Water |
| Saluda Lexington | Dominion Energy South Carolina, Inc | Columbia, SC | Dominion Energy South Carolina, Inc. (SCEG) | 91.5 GWh | Jul 1930 | Dec 2025 | Water |
| Parr Hydro | Dominion Energy South Carolina, Inc | Jenkinsville, SC | Dominion Energy South Carolina, Inc. (SCEG) | 53.3 GWh | Jul 1914 | Dec 2025 | Water |
| Neal Shoals | Dominion Energy South Carolina, Inc | Union, SC | Dominion Energy South Carolina, Inc. (SCEG) | 13.4 GWh | May 1905 | Dec 2025 | Water |
| Rainbow Falls Hydro | Erie Boulevard Hydropower LP | Parishville, NY | New York Independent System Operator (NYIS) | 84.1 GWh | Dec 1955 | Dec 2025 | Water |
| Raymondville | Erie Boulevard Hydropower LP | Norfolk, NY | New York Independent System Operator (NYIS) | 11.3 GWh | Dec 1927 | Dec 2025 | Water |
| South Edwards | Erie Boulevard Hydropower LP | Fine, NY | New York Independent System Operator (NYIS) | 19.0 GWh | Dec 1911 | Dec 2025 | Water |
| Lockhart | Lockhart Power Co | Lockhart, SC | Duke Energy Carolinas (DUK) | 49.3 GWh | Dec 1920 | Dec 2025 | Water |
| 99 Islands | Duke Energy Carolinas, LLC | Blacksburg, SC | Duke Energy Carolinas (DUK) | 31.3 GWh | Apr 1910 | Dec 2025 | Water |
| Ocoee 1 | Tennessee Valley Authority | Benton, TN | Tennessee Valley Authority (TVA) | 65.6 GWh | Dec 1911 | Dec 2025 | Water |
| Melton Hill | Tennessee Valley Authority | Lenoir City, TN | Tennessee Valley Authority (TVA) | 145.1 GWh | Jun 1964 | Dec 2025 | Water |
| Johnsonville Dam | Erie Boulevard Hydropower LP | Johnsonville, NY | New York Independent System Operator (NYIS) | 4.2 GWh | Dec 1908 | Dec 2025 | Water |
| Kamargo | Erie Boulevard Hydropower LP | Black River, NY | New York Independent System Operator (NYIS) | 21.3 GWh | Dec 1920 | Dec 2025 | Water |
| Lighthouse Hill | Erie Boulevard Hydropower LP | Altmar, NY | New York Independent System Operator (NYIS) | 22.7 GWh | Dec 1929 | Dec 2025 | Water |
| Nickajack | Tennessee Valley Authority | New Hope, TN | Tennessee Valley Authority (TVA) | 577.6 GWh | Jan 1968 | Dec 2025 | Water |
| Great Falls (TN) | Tennessee Valley Authority | Rock Island, TN | Tennessee Valley Authority (TVA) | 131.1 GWh | Nov 1916 | Dec 2025 | Water |
| Moshier | Erie Boulevard Hydropower LP | Lowville, NY | New York Independent System Operator (NYIS) | 35.1 GWh | Dec 1928 | Dec 2025 | Water |
| Norris Dam | Tennessee Valley Authority | Norris, TN | Tennessee Valley Authority (TVA) | 416.3 GWh | Jun 1936 | Dec 2025 | Water |
| Macomb | Erie Boulevard Hydropower LP | Malone, NY | New York Independent System Operator (NYIS) | 5.7 GWh | Dec 1939 | Dec 2025 | Water |
| Fort Loudoun | Tennessee Valley Authority | Lenoir City, TN | Tennessee Valley Authority (TVA) | 633.1 GWh | Oct 1943 | Dec 2025 | Water |
| Fort Patrick Henry | Tennessee Valley Authority | Kingsport, TN | Tennessee Valley Authority (TVA) | 94.8 GWh | Nov 1953 | Dec 2025 | Water |
| Ocoee 2 | Tennessee Valley Authority | Benton, TN | Tennessee Valley Authority (TVA) | 98.1 GWh | Sep 1913 | Dec 2025 | Water |
| Douglas Dam | Tennessee Valley Authority | Dandridge, TN | Tennessee Valley Authority (TVA) | 341.3 GWh | Feb 1943 | Dec 2025 | Water |
| Minetto | Erie Boulevard Hydropower LP | Minetto, NY | New York Independent System Operator (NYIS) | 30.8 GWh | Dec 1914 | Dec 2025 | Water |
| Chickamauga | Tennessee Valley Authority | Chattanooga, TN | Tennessee Valley Authority (TVA) | 693.8 GWh | Feb 1940 | Dec 2025 | Water |
| Cherokee Dam | Tennessee Valley Authority | Rudledge, TN | Tennessee Valley Authority (TVA) | 315.3 GWh | Mar 1942 | Dec 2025 | Water |
| Boone Dam | Tennessee Valley Authority | Kingsport, TN | Tennessee Valley Authority (TVA) | 145.5 GWh | Feb 1953 | Dec 2025 | Water |
| Apalachia | Tennessee Valley Authority | Reliance, TN | Tennessee Valley Authority (TVA) | 389.1 GWh | Aug 1943 | Dec 2025 | Water |
| Ocoee 3 | Tennessee Valley Authority | Benton, TN | Tennessee Valley Authority (TVA) | 141.3 GWh | Mar 1943 | Dec 2025 | Water |
| Pickwick Landing Dam | Tennessee Valley Authority | Pickwick Dam, TN | Tennessee Valley Authority (TVA) | 1.3 TWh | May 1938 | Dec 2025 | Water |
| Dahowa Hydro | GR Catalyst Two LLC | Greenwich, NY | New York Independent System Operator (NYIS) | 9.9 GWh | Nov 1987 | Dec 2025 | Water |
| Falls Creek | Eagle Creek Renewable Energy, LLC | Cascadia, OR | PacifiCorp West (PACW) | 11.8 GWh | Nov 1984 | Dec 2025 | Water |
| Conemaugh Hydro Plant | Pennsylvania Renewable Resources | Saltsburg, PA | PJM Interconnection, LLC (PJM) | 43.3 GWh | Jan 1989 | Dec 2025 | Water |
| Upper Barker | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 4.0 GWh | Apr 1987 | Dec 2025 | Water |
| Middle Falls Hydro | Boralex Hydro Operations Inc | Middle Falls, NY | New York Independent System Operator (NYIS) | 9.4 GWh | Aug 1989 | Dec 2025 | Water |
| Rhinelander Mill | Ahlstrom-Munksjo | Rhinelander, WI | Midcontinent Independent System Operator, Inc. (MISO) | 7.6 GWh | Nov 1917 | Jun 2026 | Water |
| Quail Creek Hydro Plant #1 | Washington Cnty Wtr Consv Dist | Hurricane, UT | PacifiCorp East (PACE) | 7.3 GWh | May 1985 | Jun 2026 | Water |
| Allegheny No. 5 Hydro Station | Eagle Creek Renewable Energy, LLC | Schenley, PA | PJM Interconnection, LLC (PJM) | 35.4 GWh | Sep 1988 | Dec 2025 | Water |
| Allegheny No 6 Hydro Station | Eagle Creek Renewable Energy, LLC | Ford City, PA | PJM Interconnection, LLC (PJM) | 35.6 GWh | Oct 1988 | Dec 2025 | Water |
| Bypass | North Side Energy Company | Hazelton, ID | Idaho Power Company (IPCO) | 28.2 GWh | Feb 1987 | Oct 2025 | Water |
| S E Hazelton A | North Side Energy Company | Hazelton, ID | Idaho Power Company (IPCO) | 24.9 GWh | May 1990 | Oct 2025 | Water |
| Allegheny Hydro No 8 | Allegheny Hydro LP | Adrian, PA | PJM Interconnection, LLC (PJM) | 79.6 GWh | Nov 1990 | Dec 2025 | Water |
| Yough Hydro Power | D/R Hydro Co | Confluence, PA | PJM Interconnection, LLC (PJM) | 38.2 GWh | Nov 1989 | Dec 2025 | Water |
| Allegheny Hydro No 9 | Allegheny Hydro LP | Cowansville, PA | PJM Interconnection, LLC (PJM) | 86.4 GWh | Nov 1990 | Dec 2025 | Water |
| Middle Fork Irrigation District | Middle Fork Irrigation Dist | Parkdale, OR | Bonneville Power Administration (BPAT) | 20.0 GWh | Feb 1986 | Dec 2025 | Water |
Summary of Power Plants By State
Figures are based on June 2026 generation numbers.| State | Rank | Active Plants | Jun 2026 Generation |
|---|---|---|---|
| Alabama | # 9 | 77 | 12,594.28 GWh |
| Alaska | # 48 | 140 | 563.53 GWh |
| Arizona | # 11 | 199 | 11,138.97 GWh |
| Arkansas | # 21 | 117 | 6,425.86 GWh |
| California | # 4 | 1,744 | 17,197.11 GWh |
| Colorado | # 29 | 309 | 4,933.21 GWh |
| Connecticut | # 34 | 173 | 3,737.86 GWh |
| Delaware | # 49 | 35 | 376.53 GWh |
| District of Columbia | # 51 | 17 | 18.29 GWh |
| Florida | # 2 | 342 | 26,309.59 GWh |
| Georgia | # 7 | 250 | 13,880.75 GWh |
| Hawaii | # 47 | 70 | 767.91 GWh |
| Idaho | # 41 | 152 | 2,099.32 GWh |
| Illinois | # 5 | 494 | 16,673.62 GWh |
| Indiana | # 18 | 222 | 8,401.10 GWh |
| Iowa | # 23 | 297 | 6,139.01 GWh |
| Kansas | # 25 | 188 | 5,758.25 GWh |
| Kentucky | # 22 | 61 | 6,181.49 GWh |
| Louisiana | # 15 | 90 | 9,779.36 GWh |
| Maine | # 45 | 242 | 1,215.46 GWh |
| Maryland | # 36 | 228 | 3,591.08 GWh |
| Massachusetts | # 44 | 666 | 1,410.23 GWh |
| Michigan | # 14 | 276 | 9,804.74 GWh |
| Minnesota | # 30 | 790 | 4,889.70 GWh |
| Mississippi | # 20 | 60 | 6,899.16 GWh |
| Missouri | # 24 | 129 | 6,066.44 GWh |
| State | Rank | Active Plants | Jun 2026 Generation |
|---|---|---|---|
| Montana | # 40 | 71 | 2,225.73 GWh |
| Nebraska | # 39 | 126 | 3,184.64 GWh |
| Nevada | # 31 | 117 | 4,654.59 GWh |
| New Hampshire | # 43 | 57 | 1,659.52 GWh |
| New Jersey | # 28 | 398 | 5,055.63 GWh |
| New Mexico | # 33 | 159 | 4,408.01 GWh |
| New York | # 10 | 1,064 | 11,564.60 GWh |
| North Carolina | # 8 | 913 | 12,773.20 GWh |
| North Dakota | # 35 | 59 | 3,713.80 GWh |
| Ohio | # 6 | 213 | 13,969.06 GWh |
| Oklahoma | # 17 | 144 | 9,156.03 GWh |
| Oregon | # 27 | 281 | 5,322.08 GWh |
| Pennsylvania | # 3 | 259 | 21,018.65 GWh |
| Rhode Island | # 46 | 107 | 854.92 GWh |
| South Carolina | # 16 | 209 | 9,442.42 GWh |
| South Dakota | # 42 | 53 | 1,803.66 GWh |
| Tennessee | # 19 | 99 | 7,036.17 GWh |
| Texas | # 1 | 1,028 | 57,844.67 GWh |
| Utah | # 38 | 129 | 3,196.09 GWh |
| Vermont | # 50 | 118 | 180.62 GWh |
| Virginia | # 12 | 250 | 10,352.13 GWh |
| Washington | # 13 | 135 | 10,051.77 GWh |
| West Virginia | # 32 | 41 | 4,489.44 GWh |
| Wisconsin | # 26 | 266 | 5,542.48 GWh |
| Wyoming | # 37 | 69 | 3,318.53 GWh |