Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Mcindoes | Great River Hydro, LLC | Barnet, VT | ISO New England (ISNE) | 53.3 GWh | Dec 1930 | Dec 2024 | Water |
| Carver Falls | Green Mountain Power Corp | Hampton, NY | ISO New England (ISNE) | 5.8 GWh | Jan 1922 | Dec 2024 | Water |
| Beldens | Green Mountain Power Corp | New Haven, VT | ISO New England (ISNE) | 13.5 GWh | Jul 1913 | Dec 2024 | Water |
| Vergennes 9 | Green Mountain Power Corp | Vergennes, VT | ISO New England (ISNE) | 8.0 GWh | Dec 1911 | Dec 2024 | Water |
| Searsburg | Great River Hydro, LLC | Searsburg, VT | ISO New England (ISNE) | 15.4 GWh | Feb 1922 | Dec 2024 | Water |
| Shrewsbury | Town of Shrewsbury - (MA) | Shrewsbury, MA | ISO New England (ISNE) | 34.0 MWh | Oct 1969 | Dec 2024 | Distillate Fuel Oil |
| Proctor | Green Mountain Power Corp | Proctor, VT | ISO New England (ISNE) | 31.2 GWh | Jul 1905 | Dec 2024 | Water |
| Deerfield 4 | Great River Hydro, LLC | Buckland, MA | ISO New England (ISNE) | 20.2 GWh | Jul 1912 | Dec 2024 | Water |
| Seabrook | NextEra Energy Seabrook LLC | Seabrook, NH | ISO New England (ISNE) | 10.9 TWh | Jul 1990 | Dec 2025 | Nuclear |
| Highgate Falls | Village of Swanton - (VT) | Highgate, VT | ISO New England (ISNE) | 46.6 GWh | Jul 1923 | Dec 2024 | Water |
| Ameresco Chicopee Energy | AMERESCO Chicopee Energy LLC | Chicopee, MA | ISO New England (ISNE) | 9.5 GWh | Jan 2004 | Dec 2024 | Landfill Gas |
| Wallingford Energy | Wallingford Energy LLC | Wallingford, CT | ISO New England (ISNE) | 87.8 GWh | Jul 2001 | Dec 2024 | Natural Gas |
| Newington Energy Center | Essential Power Operating Services, LLC | Newington, NH | ISO New England (ISNE) | 1.9 TWh | Sep 2002 | Dec 2025 | Natural Gas : 95.5% Distillate Fuel Oil : 4.5% |
| Westbrook Energy Center Power Plant | Westbrook Energy Center | Westbrook, ME | ISO New England (ISNE) | 3.4 TWh | Apr 2001 | Dec 2025 | Natural Gas |
| CPV Towantic Energy Center | CPV Towantic, LLC | Oxford, CT | ISO New England (ISNE) | 4.8 TWh | Apr 2018 | Dec 2025 | Natural Gas |
| Lempster Wind LLC | Avangrid Power LLC | Lempster, NH | ISO New England (ISNE) | 67.7 GWh | Nov 2008 | Dec 2025 | Wind |
| Medway Hydro | Brookfield Black Bear Hydro, LLC | Medway, ME | ISO New England (ISNE) | 23.3 GWh | Dec 1922 | Dec 2024 | Water |
| Fitchburg Gas Recovery | WM Renewable Energy LLC | Westminster, MA | ISO New England (ISNE) | 32.3 GWh | Sep 2007 | Dec 2024 | Landfill Gas |
| Waterside Power, LLC | Waterside Power, LLC | Stamford, CT | ISO New England (ISNE) | 2.1 GWh | May 2003 | Dec 2024 | Distillate Fuel Oil |
| Fore River Generating Station | Calpine Fore River Energy Center, LLC | North Weymouth, MA | ISO New England (ISNE) | 3.1 TWh | Jul 2003 | Dec 2025 | Natural Gas : 96.3% Distillate Fuel Oil : 3.7% |
| Quinebaug Lower Project | Quinebaug Associates LLC | Brooklyn, CT | ISO New England (ISNE) | 6.4 GWh | Mar 1990 | Dec 2024 | Water |
| Lake Road Generating Plant | Lake Road Generating Co LP | Dayville, CT | ISO New England (ISNE) | 5.8 TWh | Feb 2002 | Dec 2025 | Natural Gas |
| Mass Inst Tech Cntrl Utilities/Cogen Plt | Massachusetts Inst of Tech | Cambridge, MA | ISO New England (ISNE) | 204.8 GWh | May 1995 | Dec 2024 | Natural Gas |
| Dighton Power Plant | Dighton Power, LLC | Dighton, MA | ISO New England (ISNE) | 531.1 GWh | Apr 1999 | Dec 2024 | Natural Gas |
| Huntington Falls | Green Mountain Power Corp | Weybridge, VT | ISO New England (ISNE) | 22.9 GWh | Sep 1988 | Dec 2024 | Water |
| Somersworth Lower Great Dam | Green Mountain Power Corp | Somersworth, NH | ISO New England (ISNE) | 3.3 GWh | Jun 1985 | Jun 2024 | Water |
| Collins Facility | Relevate Power Management LLC | Wilbraham, MA | ISO New England (ISNE) | 6.8 GWh | Feb 1985 | Dec 2023 | Water |
| Thundermist Hydro | City of Woonsocket | Providence, RI | ISO New England (ISNE) | 90.0 MWh | May 1981 | Dec 2024 | Water |
| Wheelabrator Concord Facility | Wheelabrator Environmental Systems | Concord, NH | ISO New England (ISNE) | 94.5 GWh | Mar 1989 | Dec 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Nashua Plant | NextEra Renewable Fuels, LLC | Nashua, NH | ISO New England (ISNE) | 13.4 GWh | Mar 1996 | Dec 2024 | Landfill Gas |
| Ocean State Power | Ocean State Power Co | Harrisville, RI | ISO New England (ISNE) | 1.2 TWh | Nov 1990 | Dec 2024 | Natural Gas : 99.9% |
| ANP Bellingham Energy Project | Bellingham Power Generation LLC | Bellingham, MA | ISO New England (ISNE) | 3.5 TWh | Oct 2002 | Dec 2025 | Natural Gas |
| Milford Power LP | Milford Power LLC | Milford, MA | ISO New England (ISNE) | 253.1 GWh | Feb 1993 | Dec 2024 | Natural Gas |
| Granite Ridge | Granite Ridge Energy LLC | Londonderry, NH | ISO New England (ISNE) | 3.4 TWh | Feb 2003 | Dec 2025 | Natural Gas |
| Pejepscot Hydroelectric Project | Topsham Hydro Partners | Topsham, ME | ISO New England (ISNE) | 48.6 GWh | Oct 1987 | Dec 2024 | Water |
| Maine Independence Station | Casco Bay Energy Co LLC | Veazie, ME | ISO New England (ISNE) | 2.5 TWh | Apr 2000 | Dec 2024 | Natural Gas |
| Aziscohos Hydroelectric Project | Brookfield White Pine Hydro LLC | Wilson Mills, ME | ISO New England (ISNE) | 36.3 GWh | May 1988 | Dec 2024 | Water |
| Wheelabrator Lisbon | Wheelabrator Environmental Systems | Lisbon, CT | ISO New England (ISNE) | 99.8 GWh | Sep 1995 | Dec 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Wheelabrator Bridgeport | Wheelabrator Environmental Systems | Bridgeport, CT | ISO New England (ISNE) | 470.9 GWh | Jun 1988 | Dec 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Ryegate Associates, LLC | Ryegate Associates, LLC | East Ryegate, VT | ISO New England (ISNE) | 149.9 GWh | Aug 1992 | Dec 2024 | Wood/Wood Waste Solids |
| Wheelabrator North Andover | Wheelabrator Environmental Systems | North Andover, MA | ISO New England (ISNE) | 240.0 GWh | Apr 1985 | Dec 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| ANP Blackstone Energy Project | ANP Blackstone Energy Company LLC | Blackstone, MA | ISO New England (ISNE) | 3.3 TWh | May 2001 | Dec 2025 | Natural Gas |
| Rhode Island Hospital | Rhode Island Hospital | Providence, RI | ISO New England (ISNE) | 39.5 GWh | Sep 1974 | Dec 2025 | Natural Gas : 97.2% Residual Fuel Oil : 2.8% |
| Dartmouth Power Associates LP | Morris Energy Operations Company, LLC | Dartmouth, MA | ISO New England (ISNE) | 63.0 GWh | Feb 1992 | Dec 2024 | Natural Gas : 99.7% |
| Wheelabrator Saugus | Wheelabrator Environmental Systems | Saugus, MA | ISO New England (ISNE) | 185.1 GWh | Jul 1985 | Dec 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Moretown Generating Station | Moretown Hydroelectric LLC | Moretown, VT | ISO New England (ISNE) | 2.6 GWh | Dec 1988 | Dec 2023 | Water |
| Pontook Hydro Facility | Pontook Operating LP | Dummer, NH | ISO New England (ISNE) | 61.9 GWh | Nov 1986 | Dec 2024 | Water |
| Wheelabrator Millbury Facility | Wheelabrator Environmental Systems | Millbury, MA | ISO New England (ISNE) | 319.2 GWh | Aug 1987 | Dec 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Hartford Hospital Cogeneration | Cartier Energy, LLC | Hartford, CT | ISO New England (ISNE) | 39.5 GWh | Jun 1988 | Dec 2024 | Natural Gas |
| Central Power Plant | State of Rhode Island | Cranston, RI | ISO New England (ISNE) | 18.7 GWh | Jul 1958 | Dec 2025 | Natural Gas : 97.7% Distillate Fuel Oil : 2.3% |
| New Milford Gas Recovery | WM Renewable Energy LLC | New Milford, CT | ISO New England (ISNE) | 4.7 GWh | Apr 2008 | Dec 2024 | Landfill Gas |
| Pittsfield Hydro | KEI (Maine) Power Management (II) LLC | Burnham, ME | ISO New England (ISNE) | 3.5 GWh | Jun 1986 | Dec 2024 | Water |
| Great Lakes Hydro America - ME | Great Lakes Hydro America LLC | Millinocket, ME | ISO New England (ISNE) | 570.9 GWh | Jun 1917 | Dec 2024 | Water |
| Hydro Kennebec Project | Hydro Kennebec LLC | Winslow, ME | ISO New England (ISNE) | 27.0 GWh | Dec 1988 | Dec 2024 | Water |
| Lochmere Hydroelectric Plant | Eagle Creek Renewable Energy, LLC | Tilton, NH | ISO New England (ISNE) | 3.5 GWh | Nov 1984 | Dec 2024 | Water |
| Covanta Haverhill | Ogden Projects Inc-Haverhill | Haverhill, MA | ISO New England (ISNE) | 198.0 GWh | Apr 1989 | Dec 2025 | Non-biogenic Municipal Solid Waste : 51.9% Biogenic Municipal Solid Waste : 42.4% Distillate Fuel Oil : 5.7% |
| MM Taunton Energy | MM Taunton Energy LLC | Taunton, MA | ISO New England (ISNE) | 5.8 GWh | Aug 1997 | Dec 2024 | Landfill Gas |
| Gillette SBMC | The Gillette Company | Boston, MA | ISO New England (ISNE) | 54.8 GWh | Jan 1971 | Dec 2025 | Natural Gas |
| Erving Paper Mills | Erving Paper Mills Inc | Erving, MA | ISO New England (ISNE) | 41.6 GWh | Nov 2013 | Dec 2025 | Natural Gas : 97.8% Distillate Fuel Oil : 2.2% |
| Pfizer Groton Plant | Pfizer Inc | Groton, CT | ISO New England (ISNE) | 75.0 GWh | Dec 1947 | Dec 2025 | Natural Gas : 90.0% Distillate Fuel Oil : 10.0% |
| Milford Power Project | Milford Power Co LLC | Milford, CT | ISO New England (ISNE) | 3.4 TWh | Jan 2004 | Dec 2025 | Natural Gas |
| ReEnergy Stratton LLC | ReEnergy Stratton LLC | Stratton, ME | ISO New England (ISNE) | 203.1 GWh | Oct 1989 | Dec 2024 | Wood/Wood Waste Solids |
| Covanta Bristol Energy | Covanta Bristol Inc | Bristol, CT | ISO New England (ISNE) | 109.4 GWh | Nov 1987 | Dec 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Salmon Falls | Green Mountain Power Corp | South Berwick, ME | ISO New England (ISNE) | 2.6 GWh | Jun 1986 | Dec 2024 | Water |
| Berkshire Power | Berkshire Power Co LLC | Agawam, MA | ISO New England (ISNE) | 573.3 GWh | Aug 1999 | Dec 2024 | Natural Gas |
| Mascoma Hydro | Green Mountain Power Corp | W. Lebanon, NH | ISO New England (ISNE) | 1.5 GWh | Nov 1988 | Dec 2024 | Water |
| Goodwin Hydroelectric | Metropolitan Dist of Hartford | W. Hartland, CT | ISO New England (ISNE) | 8.9 GWh | Mar 1986 | Dec 2024 | Water |
| Rumford Power LLC | Rumford Power | Rumford, ME | ISO New England (ISNE) | 637.7 GWh | Jun 2000 | Dec 2024 | Natural Gas |
| Ocean State Power II | Ocean State Power II | Harrisville, RI | ISO New England (ISNE) | 896.8 GWh | Sep 1991 | Dec 2024 | Natural Gas : 99.9% |
| Rollinsford | Green Mountain Power Corp | Rollinsford, NH | ISO New England (ISNE) | 2.3 GWh | Sep 1986 | Dec 2024 | Water |
| Rhode Island State Energy Center | RISEC Operating Services | Johnston, RI | ISO New England (ISNE) | 3.5 TWh | Sep 2002 | Dec 2025 | Natural Gas |
| Dartmouth College Heating Plant | Dartmouth College | Hanover, NH | ISO New England (ISNE) | 10.2 GWh | Dec 1969 | Dec 2025 | Residual Fuel Oil |
| Chace Mill Winooski One | City of Burlington Electric - (VT) | Winooski, VT | ISO New England (ISNE) | 29.5 GWh | Mar 1993 | Dec 2024 | Water |
| Bridgeport Energy Project | Bridgeport Energy LLC | Bridgeport, CT | ISO New England (ISNE) | 2.4 TWh | May 1998 | Dec 2025 | Natural Gas |
| EHC West Hopkinton | Green Mountain Power Corp | West Hopkinton, NH | ISO New England (ISNE) | 2.7 GWh | Jun 1985 | Jul 2024 | Water |
| Mechanic Falls | KEI (Maine) Power Management (IV) LLC | Mechanic Falls, ME | ISO New England (ISNE) | 1.9 GWh | Mar 1986 | Dec 2024 | Water |
| Pumpkin Hill | KEI (Maine) Power Management (II) LLC | Lowell, ME | ISO New England (ISNE) | 3.2 GWh | Feb 1987 | Dec 2024 | Water |
| Millennium Power | Millennium Power Company, LLC | Charlton, MA | ISO New England (ISNE) | 852.2 GWh | Mar 2001 | Dec 2025 | Natural Gas |
| Pratt & Whitney | United Technologies | East Hartford, CT | ISO New England (ISNE) | 84.1 GWh | Dec 1991 | Oct 2025 | Natural Gas |
| Turnkey Landfill Gas Recovery | WM Renewable Energy LLC | Rochester, NH | ISO New England (ISNE) | 44.2 GWh | Jan 1992 | Dec 2024 | Landfill Gas |
| Gardiner | KEI (Maine) Power Management (III) LLC | Gardiner, ME | ISO New England (ISNE) | 4.3 GWh | Jun 1985 | Dec 2024 | Water |
| NE Renewable Fitchburg, LLC | NE Renewable Fitchburg, LLC | Westminster, MA | ISO New England (ISNE) | 61.2 GWh | Jul 1992 | Dec 2024 | Wood/Wood Waste Solids : 98.1% Natural Gas : 1.9% |
| Upper Barker | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 4.7 GWh | Apr 1987 | Dec 2024 | Water |
| Wellesley College Central Utility Plant | Wellesley College | Wellesley, MA | ISO New England (ISNE) | 889.0 MWh | May 1985 | Dec 2024 | Natural Gas |
| Berlin Gorham | Great Lakes Hydro America LLC | Berlin, NH | ISO New England (ISNE) | 133.5 GWh | Dec 1913 | Dec 2024 | Water |
| Tiverton Power Plant | Tiverton Power LLC | Tiverton, RI | ISO New England (ISNE) | 1.7 TWh | Feb 2000 | Dec 2024 | Natural Gas |
| Rollins Wind Project | Evergreen Wind, LLC | Winn Village, ME | ISO New England (ISNE) | 136.1 GWh | Jun 2011 | Dec 2024 | Wind |
| Waterbury Generation | Engie North America | Waterbury, CT | ISO New England (ISNE) | 43.8 GWh | May 2009 | Dec 2024 | Natural Gas : 99.8% |
| Stetson Wind II | Evergreen Wind, LLC | Danforth, ME | ISO New England (ISNE) | 49.7 GWh | Feb 2010 | Dec 2024 | Wind |
| HSCo CHP | Cartier Energy, LLC | Hartford, CT | ISO New England (ISNE) | 27.3 GWh | Sep 2009 | Dec 2024 | Natural Gas |
| Oakfield Wind Project | Onward Energy | City of Oakfield, ME | ISO New England (ISNE) | 350.6 GWh | Sep 2015 | Dec 2025 | Wind |
| Orono Hydro Station | Brookfield Black Bear Hydro, LLC | Orono, ME | ISO New England (ISNE) | 5.8 GWh | Dec 2008 | Dec 2024 | Water |
| Stetson Wind I | Evergreen Wind, LLC | Danforth, ME | ISO New England (ISNE) | 120.7 GWh | Dec 2008 | Dec 2024 | Wind |
| Kleen Energy Systems Project | Kleen Energy Systems, LLC | Middletown, CT | ISO New England (ISNE) | 3.2 TWh | Jun 2011 | Dec 2025 | Natural Gas : 99.3% Distillate Fuel Oil : 0.7% |
| New England Wind LLC | Avangrid Power LLC | Florida, MA | ISO New England (ISNE) | 74.4 GWh | Nov 2012 | Dec 2025 | Wind |
| Fairfield University CHP Plant | Fairfield University | Fairfield, CT | ISO New England (ISNE) | 26.1 GWh | Sep 2007 | Dec 2024 | Natural Gas |
| Plainfield Renewable Energy LLC | Plainfield Renewable Energy, LLC | Plainfield, CT | ISO New England (ISNE) | 247.0 GWh | Nov 2013 | Oct 2024 | Wood/Wood Waste Solids : 99.5% Other Biomass Liquids : 0.5% |
| Kibby Wind Facility | Helix Maine Wind Development, LLC | Chain of Ponds, ME | ISO New England (ISNE) | 261.6 GWh | Sep 2009 | Dec 2025 | Wind |
| MA Military Reservation Wind Project | Air Force Civil Engineer Center | Otis ANG Base Bourne, MA | ISO New England (ISNE) | 9.7 GWh | Nov 2009 | Dec 2024 | Wind |
| Dorchester Solar Site | Massachusetts Electric Co | Dorchester, MA | ISO New England (ISNE) | 1.5 GWh | Dec 2011 | Dec 2024 | Solar |
Summary of Power Plants By State
Figures are based on December 2025 generation numbers.| State | Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Alabama | # 7 | 76 | 12,766.12 GWh |
| Alaska | # 48 | 139 | 625.46 GWh |
| Arizona | # 16 | 183 | 8,962.31 GWh |
| Arkansas | # 29 | 114 | 5,525.50 GWh |
| California | # 5 | 1,683 | 14,393.99 GWh |
| Colorado | # 31 | 297 | 4,649.38 GWh |
| Connecticut | # 34 | 162 | 4,087.83 GWh |
| Delaware | # 49 | 33 | 469.96 GWh |
| District of Columbia | # 51 | 16 | 14.80 GWh |
| Florida | # 3 | 333 | 19,379.32 GWh |
| Georgia | # 8 | 248 | 12,492.24 GWh |
| Hawaii | # 46 | 70 | 814.97 GWh |
| Idaho | # 41 | 146 | 2,123.12 GWh |
| Illinois | # 4 | 379 | 17,546.79 GWh |
| Indiana | # 13 | 214 | 9,789.95 GWh |
| Iowa | # 20 | 293 | 7,310.28 GWh |
| Kansas | # 28 | 183 | 5,586.75 GWh |
| Kentucky | # 22 | 60 | 6,716.43 GWh |
| Louisiana | # 17 | 84 | 8,587.03 GWh |
| Maine | # 45 | 215 | 1,484.81 GWh |
| Maryland | # 37 | 203 | 3,225.85 GWh |
| Massachusetts | # 43 | 640 | 2,073.13 GWh |
| Michigan | # 11 | 269 | 11,734.82 GWh |
| Minnesota | # 27 | 764 | 5,712.30 GWh |
| Mississippi | # 24 | 56 | 6,090.79 GWh |
| Missouri | # 23 | 125 | 6,623.76 GWh |
| State | Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Montana | # 40 | 70 | 2,639.28 GWh |
| Nebraska | # 36 | 125 | 3,667.32 GWh |
| Nevada | # 38 | 114 | 3,217.22 GWh |
| New Hampshire | # 44 | 56 | 1,878.83 GWh |
| New Jersey | # 30 | 387 | 5,182.27 GWh |
| New Mexico | # 35 | 142 | 3,818.41 GWh |
| New York | # 10 | 950 | 11,800.05 GWh |
| North Carolina | # 9 | 904 | 12,153.04 GWh |
| North Dakota | # 33 | 58 | 4,218.72 GWh |
| Ohio | # 6 | 198 | 13,425.53 GWh |
| Oklahoma | # 18 | 141 | 7,637.23 GWh |
| Oregon | # 21 | 272 | 6,788.64 GWh |
| Pennsylvania | # 2 | 252 | 22,539.49 GWh |
| Rhode Island | # 47 | 100 | 775.70 GWh |
| South Carolina | # 15 | 207 | 8,967.44 GWh |
| South Dakota | # 42 | 52 | 2,122.20 GWh |
| Tennessee | # 19 | 88 | 7,328.17 GWh |
| Texas | # 1 | 947 | 46,150.81 GWh |
| Utah | # 39 | 125 | 2,845.12 GWh |
| Vermont | # 50 | 116 | 189.85 GWh |
| Virginia | # 14 | 237 | 9,421.16 GWh |
| Washington | # 12 | 135 | 10,635.09 GWh |
| West Virginia | # 26 | 39 | 5,763.55 GWh |
| Wisconsin | # 25 | 243 | 5,804.32 GWh |
| Wyoming | # 32 | 70 | 4,436.68 GWh |