Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Middlesex 2 | Green Mountain Power Corp | Moretown, VT | ISO New England (ISNE) | 5.9 GWh | Dec 1927 | Dec 2025 | Water |
| Chippewa Falls | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 56.1 GWh | Dec 1927 | Dec 2025 | Water |
| Indian Orchard | Central Rivers Power MA, LLC | Indian Orchard, MA | ISO New England (ISNE) | 3.5 GWh | Dec 1927 | Dec 2025 | Water |
| Gorge 18 | Green Mountain Power Corp | South Burlington, VT | ISO New England (ISNE) | 15.4 GWh | Dec 1927 | Dec 2025 | Water |
| Kalaheo Hydro | BBCP Kauai Operating LLC | Kalaheo, HI | 461.0 MWh | Dec 1927 | Dec 2025 | Water | |
| Bucks Creek | Pacific Gas & Electric Co. | Storrie, CA | California Independent System Operator (CISO) | 192.0 GWh | Feb 1928 | Dec 2025 | Water |
| Conowingo | Constellation Power, Inc | Darlington, MD | PJM Interconnection, LLC (PJM) | 1.6 TWh | Feb 1928 | May 2026 | Water |
| Bellows Falls | Great River Hydro, LLC | Bellow Falls, VT | ISO New England (ISNE) | 194.3 GWh | Feb 1928 | Dec 2025 | Water |
| Oxford Dam | Duke Energy Carolinas, LLC | Conover, NC | Duke Energy Carolinas (DUK) | 86.5 GWh | Mar 1928 | Dec 2025 | Water |
| Spaulding 1 | Pacific Gas & Electric Co. | Emigrant Gap, CA | California Independent System Operator (CISO) | 17.4 GWh | Apr 1928 | Dec 2025 | Water |
| Marshall (MI) | City of Marshall - (MI) | Marshall, MI | Midcontinent Independent System Operator, Inc. (MISO) | 638.0 MWh | May 1928 | Dec 2025 | Water |
| Santeetlah | Brookfield Smoky Mountain Hydropower LP | Robbinsville, NC | Tennessee Valley Authority (TVA) | 130.0 GWh | May 1928 | Dec 2025 | Water |
| Yates Dam | Alabama Power Co | Tallassee, AL | Southern Company Services, Inc. - Trans (SOCO) | 114.2 GWh | Jun 1928 | Dec 2025 | Water |
| Spaulding 2 | Pacific Gas & Electric Co. | Emigrant Gap, CA | California Independent System Operator (CISO) | 21.0 MWh | Jun 1928 | Nov 2025 | Water |
| Big Creek 2A | Southern California Edison Co | Auberry, CA | California Independent System Operator (CISO) | 273.7 GWh | Jul 1928 | May 2026 | Water |
| High Dam | Oswego, City of - (NY) | Oswego, NY | New York Independent System Operator (NYIS) | 19.1 GWh | Jul 1928 | Dec 2025 | Water |
| Tillery | Duke Energy Progress - (NC) | Mount Gilead, NC | Duke Energy Progress East (CPLE) | 117.7 GWh | Jul 1928 | Dec 2025 | Water |
| Jordan Dam | Alabama Power Co | Wetumpka, AL | Southern Company Services, Inc. - Trans (SOCO) | 313.8 GWh | Dec 1928 | Dec 2025 | Water |
| Rockton | Eagle Creek Renewable Energy, LLC | Rockton, IL | Midcontinent Independent System Operator, Inc. (MISO) | 6.5 GWh | Dec 1928 | Dec 2025 | Water |
| Moshier | Erie Boulevard Hydropower LP | Lowville, NY | New York Independent System Operator (NYIS) | 35.1 GWh | Dec 1928 | Dec 2025 | Water |
| Port Townsend Paper | Port Townsend Paper Co | Port Townsend, WA | Bonneville Power Administration (BPAT) | 7.7 GWh | Dec 1928 | Dec 2025 | Black Liquor : 48.8% Wood/Wood Waste Solids : 40.5% Natural Gas : 9.0% Waste/Other Oil : 1.6% |
| Sappi Cloquet Mill | Sappi Cloquet LLC | Cloquet, MN | Midcontinent Independent System Operator, Inc. (MISO) | 460.5 GWh | Dec 1928 | May 2026 | Black Liquor : 62.8% Wood/Wood Waste Solids : 17.5% Natural Gas : 15.7% Water : 3.1% |
| Argyle | City of Argyle - (WI) | Argyle, WI | Midcontinent Independent System Operator, Inc. (MISO) | 193.0 MWh | Dec 1928 | Dec 2025 | Water : 92.7% Distillate Fuel Oil : 7.3% |
| Milton | Green Mountain Power Corp | Milton, VT | ISO New England (ISNE) | 33.8 GWh | Jan 1929 | Dec 2025 | Water |
| Spaulding 3 | Pacific Gas & Electric Co. | Emigrant Gap, CA | California Independent System Operator (CISO) | 16.9 GWh | Jan 1929 | Dec 2025 | Water |
| Augusta Electric Plant No 1 | City of Augusta - (KS) | Augusta, KS | Southwest Power Pool (SWPP) | 5.0 MWh | Jul 1929 | Dec 2025 | Distillate Fuel Oil |
| Garnett Municipal | City of Garnett - (KS) | Garnett, KS | Southwest Power Pool (SWPP) | 9.0 MWh | Dec 1929 | Dec 2025 | Distillate Fuel Oil |
| Wyman Hydro | Brookfield White Pine Hydro LLC | Bingham, ME | ISO New England (ISNE) | 295.2 GWh | Dec 1929 | Dec 2025 | Water |
| Cobble Mountain | City of Holyoke Gas and Elec Dept - (MA) | Granville, MA | ISO New England (ISNE) | 7.1 GWh | Dec 1929 | Dec 2025 | Water |
| Morony | NorthWestern Energy (MT Hydro) | Great Falls, MT | NorthWestern Corporation (NWMT) | 214.7 GWh | Dec 1929 | 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 |
| Arcadia Electric | City of Arcadia - (WI) | Arcadia, WI | Midcontinent Independent System Operator, Inc. (MISO) | 253.0 MWh | Dec 1929 | Dec 2025 | Distillate Fuel Oil : 70.5% Natural Gas : 29.5% |
| E J West | Erie Boulevard Hydropower LP | Lake Luzerne, NY | New York Independent System Operator (NYIS) | 50.3 GWh | Dec 1929 | Dec 2025 | Water |
| Flambeau Crowley Rapids Project | Zero6 Energy Hydro | Park Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.0 GWh | Dec 1929 | Dec 2025 | Water |
| Stewart Mountain | Salt River Project | Phoenix, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 36.6 GWh | Feb 1930 | Dec 2025 | Water |
| Calderwood | Brookfield Smoky Mountain Hydropower LP | Tallassee, TN | Tennessee Valley Authority (TVA) | 568.7 GWh | Mar 1930 | Dec 2025 | Water |
| Lake Blackshear Project | Crisp County Power Comm | Warwick, GA | Southern Company Services, Inc. - Trans (SOCO) | 34.6 GWh | Apr 1930 | Dec 2025 | Water |
| Merced Falls | Merced Irrigation District | Snelling, CA | California Independent System Operator (CISO) | 9.1 GWh | Jun 1930 | Sep 2025 | Water |
| Pardee | East Bay Municipal Util Dist - (CA) | Valley Springs, CA | California Independent System Operator (CISO) | 79.6 GWh | Jun 1930 | Dec 2025 | Water |
| Walters | Duke Energy Progress - (NC) | Waterville, NC | Duke Energy Progress East (CPLE) | 289.1 GWh | Jun 1930 | Dec 2025 | Water |
| Falls City | City of Falls City - (NE) | Falls City, NE | Southwest Power Pool (SWPP) | 499.0 MWh | Jul 1930 | Dec 2025 | Natural Gas : 70.1% Distillate Fuel Oil : 29.9% |
| Saluda Lexington | Dominion Energy South Carolina, Inc | Columbia, SC | Dominion Energy South Carolina, Inc. (SCEG) | 91.5 GWh | Jul 1930 | Dec 2025 | Water |
| Comerford | Great River Hydro, LLC | Monroe, NH | ISO New England (ISNE) | 296.8 GWh | Aug 1930 | Dec 2025 | Water |
| Louisiana Sugar Refining | Louisiana Sugar Refining LLC | Gramercy, LA | Midcontinent Independent System Operator, Inc. (MISO) | 9.1 GWh | Aug 1930 | Dec 2025 | Natural Gas |
| Niangua | Sho-Me Power Electric Coop | Camdenton, MO | Associated Electric Cooperative, Inc. (AECI) | 536.0 MWh | Oct 1930 | Feb 2025 | Water |
| Yelm | City of Centralia - (WA) | Yelm, WA | Bonneville Power Administration (BPAT) | 32.2 GWh | Nov 1930 | Dec 2025 | Water |
| Cushman 2 | City of Tacoma - (WA) | Shelton, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 160.5 GWh | Nov 1930 | Dec 2025 | Water |
| Mcindoes | Great River Hydro, LLC | Barnet, VT | ISO New England (ISNE) | 39.1 GWh | Dec 1930 | Dec 2025 | Water |
| Thurlow Dam | Alabama Power Co | Tallassee, AL | Southern Company Services, Inc. - Trans (SOCO) | 191.0 GWh | Dec 1930 | Dec 2025 | Water |
| Victoria Dam | Upper Peninsula Power Company | Rockland, MI | Midcontinent Independent System Operator, Inc. (MISO) | 53.6 GWh | Dec 1930 | Dec 2025 | Water |
| Beebee Island Hydro Plant | Erie Boulevard Hydropower LP | Watertown, NY | New York Independent System Operator (NYIS) | 40.1 GWh | Dec 1930 | Dec 2025 | Water |
| Dexter Plant | Central Rivers Power US, LLC | Dexter, NY | New York Independent System Operator (NYIS) | 6.9 GWh | Dec 1930 | Dec 2025 | Water |
| Ozark Beach | Empire District Electric Co | Forsyth, MO | Southwest Power Pool (SWPP) | 40.3 GWh | May 1931 | Dec 2025 | Water |
| Salt Springs | Pacific Gas & Electric Co. | Pioneer, CA | California Independent System Operator (CISO) | 113.4 GWh | May 1931 | Dec 2025 | Water |
| Tiger Creek | Pacific Gas & Electric Co. | Pioneer, CA | California Independent System Operator (CISO) | 215.7 GWh | May 1931 | Dec 2025 | Water |
| Hardy | Consumers Energy Co - (MI) | Newaygo, MI | Midcontinent Independent System Operator, Inc. (MISO) | 64.9 GWh | May 1931 | Dec 2025 | Water |
| Blue Ridge | Tennessee Valley Authority | Blue Ridge, GA | Tennessee Valley Authority (TVA) | 23.6 GWh | Jun 1931 | Dec 2025 | Water |
| West Charleston | Barton Village, Inc | West Charleston, VT | ISO New England (ISNE) | 5.8 GWh | Jun 1931 | Jul 2025 | Water |
| Merwin | PacifiCorp | Ariel, WA | PacifiCorp West (PACW) | 422.6 GWh | Jun 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 |
| Ottumwa City of | City of Ottumwa - (IA) | Ottumwa, IA | Midcontinent Independent System Operator, Inc. (MISO) | 2.9 GWh | Jul 1931 | Dec 2025 | 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 | May 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) | 12.6 GWh | Jul 1932 | Feb 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) | 3.0 GWh | Jun 1934 | May 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 | May 2026 | Water |
| Hoover Dam (AZ) | U S Bureau of Reclamation | Boulder City, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 1.3 TWh | Aug 1936 | May 2026 | Water |
| Tennessee Eastman Operations | Eastman Chemical Co-TN Ops | Kingsport, TN | PJM Interconnection, LLC (PJM) | 1.0 TWh | Aug 1936 | May 2026 | Natural Gas : 63.9% Bituminous Coal : 34.5% 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 |
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 |