Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Morrisville | Village of Morrisville - (VT) | Morrisville, VT | ISO New England (ISNE) | 4.9 GWh | Jul 1924 | Dec 2024 | Water |
| Cadys Falls | Village of Morrisville - (VT) | Morrisville, VT | ISO New England (ISNE) | 139.0 MWh | Jul 1914 | Dec 2024 | Water |
| Harriman | Great River Hydro, LLC | Whitingham, VT | ISO New England (ISNE) | 91.5 GWh | Apr 1924 | Dec 2024 | Water |
| CPV Towantic Energy Center | CPV Towantic, LLC | Oxford, CT | ISO New England (ISNE) | 5.2 TWh | Apr 2018 | Sep 2025 | Natural Gas |
| Fitchburg Gas Recovery | WM Renewable Energy LLC | Westminster, MA | ISO New England (ISNE) | 32.3 GWh | Sep 2007 | Dec 2024 | Landfill Gas |
| Wallingford Energy | Wallingford Energy LLC | Wallingford, CT | ISO New England (ISNE) | 87.8 GWh | Jul 2001 | Dec 2024 | Natural Gas |
| Ameresco Chicopee Energy | AMERESCO Chicopee Energy LLC | Chicopee, MA | ISO New England (ISNE) | 9.5 GWh | Jan 2004 | 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 |
| Quinebaug Lower Project | Quinebaug Associates LLC | Brooklyn, CT | ISO New England (ISNE) | 6.4 GWh | Mar 1990 | Dec 2024 | Water |
| Waterbury Generation | Engie North America | Waterbury, CT | ISO New England (ISNE) | 43.8 GWh | May 2009 | Dec 2024 | Natural Gas : 99.8% |
| Newington Energy Center | Essential Power Operating Services, LLC | Newington, NH | ISO New England (ISNE) | 1.7 TWh | Sep 2002 | Sep 2025 | Natural Gas : 95.7% Distillate Fuel Oil : 4.3% |
| Lempster Wind LLC | Avangrid Power LLC | Lempster, NH | ISO New England (ISNE) | 67.7 GWh | Nov 2008 | Sep 2025 | Wind |
| Wheelabrator North Andover | Wheelabrator Environmental Systems | North Andover, MA | ISO New England (ISNE) | 233.1 GWh | Apr 1985 | Sep 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Granite Ridge | Granite Ridge Energy LLC | Londonderry, NH | ISO New England (ISNE) | 3.0 TWh | Feb 2003 | Sep 2025 | Natural Gas |
| MM Taunton Energy | MM Taunton Energy LLC | Taunton, MA | ISO New England (ISNE) | 5.8 GWh | Aug 1997 | Dec 2024 | Landfill Gas |
| Rumford Power LLC | Rumford Power | Rumford, ME | ISO New England (ISNE) | 637.7 GWh | Jun 2000 | Dec 2024 | Natural Gas |
| Pejepscot Hydroelectric Project | Topsham Hydro Partners | Topsham, ME | ISO New England (ISNE) | 48.6 GWh | Oct 1987 | Dec 2024 | Water |
| Fore River Generating Station | Calpine Fore River Energy Center, LLC | North Weymouth, MA | ISO New England (ISNE) | 3.1 TWh | Jul 2003 | Sep 2025 | Natural Gas : 95.1% Distillate Fuel Oil : 4.9% |
| Wellesley College Central Utility Plant | Wellesley College | Wellesley, MA | ISO New England (ISNE) | 889.0 MWh | May 1985 | Dec 2024 | Natural Gas |
| Millennium Power | Millennium Power Company, LLC | Charlton, MA | ISO New England (ISNE) | 482.2 GWh | Mar 2001 | Sep 2025 | Natural Gas |
| ANP Blackstone Energy Project | ANP Blackstone Energy Company LLC | Blackstone, MA | ISO New England (ISNE) | 3.0 TWh | May 2001 | Sep 2025 | Natural Gas |
| Hartford Hospital Cogeneration | Cartier Energy, LLC | Hartford, CT | ISO New England (ISNE) | 39.5 GWh | Jun 1988 | Dec 2024 | Natural Gas |
| Maine Independence Station | Casco Bay Energy Co LLC | Veazie, ME | ISO New England (ISNE) | 2.5 TWh | Apr 2000 | Dec 2024 | Natural Gas |
| Moretown Generating Station | Moretown Hydroelectric LLC | Moretown, VT | ISO New England (ISNE) | 2.6 GWh | Dec 1988 | Dec 2023 | Water |
| Wheelabrator Concord Facility | Wheelabrator Environmental Systems | Concord, NH | ISO New England (ISNE) | 95.3 GWh | Mar 1989 | Sep 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| 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% |
| ANP Bellingham Energy Project | Bellingham Power Generation LLC | Bellingham, MA | ISO New England (ISNE) | 3.5 TWh | Oct 2002 | Sep 2025 | Natural Gas |
| Rhode Island Hospital | Rhode Island Hospital | Providence, RI | ISO New England (ISNE) | 7.6 GWh | Sep 1974 | Sep 2025 | Natural Gas : 86.8% Residual Fuel Oil : 13.2% |
| Wheelabrator Millbury Facility | Wheelabrator Environmental Systems | Millbury, MA | ISO New England (ISNE) | 317.5 GWh | Aug 1987 | Sep 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Wheelabrator Saugus | Wheelabrator Environmental Systems | Saugus, MA | ISO New England (ISNE) | 226.1 GWh | Jul 1985 | Sep 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Tiverton Power Plant | Tiverton Power LLC | Tiverton, RI | ISO New England (ISNE) | 1.7 TWh | Feb 2000 | Dec 2024 | Natural Gas |
| Rhode Island State Energy Center | RISEC Operating Services | Johnston, RI | ISO New England (ISNE) | 3.3 TWh | Sep 2002 | Sep 2025 | Natural 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% |
| Ryegate Associates, LLC | Ryegate Associates, LLC | East Ryegate, VT | ISO New England (ISNE) | 149.9 GWh | Aug 1992 | Dec 2024 | Wood/Wood Waste Solids |
| Aziscohos Hydroelectric Project | Brookfield White Pine Hydro LLC | Wilson Mills, ME | ISO New England (ISNE) | 36.3 GWh | May 1988 | Dec 2024 | Water |
| Nashua Plant | NextEra Renewable Fuels, LLC | Nashua, NH | ISO New England (ISNE) | 13.4 GWh | Mar 1996 | Dec 2024 | Landfill Gas |
| Wheelabrator Bridgeport | Wheelabrator Environmental Systems | Bridgeport, CT | ISO New England (ISNE) | 473.1 GWh | Jun 1988 | Sep 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Bridgeport Energy Project | Bridgeport Energy LLC | Bridgeport, CT | ISO New England (ISNE) | 2.4 TWh | May 1998 | Sep 2025 | Natural Gas |
| Berkshire Power | Berkshire Power Co LLC | Agawam, MA | ISO New England (ISNE) | 573.3 GWh | Aug 1999 | Dec 2024 | 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 |
| Dighton Power Plant | Dighton Power, LLC | Dighton, MA | ISO New England (ISNE) | 531.1 GWh | Apr 1999 | Dec 2024 | Natural Gas |
| Goodwin Hydroelectric | Metropolitan Dist of Hartford | W. Hartland, CT | ISO New England (ISNE) | 8.9 GWh | Mar 1986 | Dec 2024 | Water |
| Hydro Kennebec Project | Hydro Kennebec LLC | Winslow, ME | ISO New England (ISNE) | 27.0 GWh | Dec 1988 | Dec 2024 | Water |
| Gillette SBMC | The Gillette Company | Boston, MA | ISO New England (ISNE) | 54.9 GWh | Jan 1971 | Sep 2025 | Natural Gas |
| Erving Paper Mills | Erving Paper Mills Inc | Erving, MA | ISO New England (ISNE) | 41.7 GWh | Nov 2013 | Sep 2025 | Natural Gas : 98.9% Distillate Fuel Oil : 1.1% |
| Lochmere Hydroelectric Plant | Eagle Creek Renewable Energy, LLC | Tilton, NH | ISO New England (ISNE) | 3.5 GWh | Nov 1984 | Dec 2024 | Water |
| Pfizer Groton Plant | Pfizer Inc | Groton, CT | ISO New England (ISNE) | 77.5 GWh | Dec 1947 | Sep 2025 | Natural Gas : 91.4% Distillate Fuel Oil : 8.6% |
| Thundermist Hydro | City of Woonsocket | Providence, RI | ISO New England (ISNE) | 90.0 MWh | May 1981 | Dec 2024 | Water |
| Milford Power Project | Milford Power Co LLC | Milford, CT | ISO New England (ISNE) | 3.6 TWh | Jan 2004 | Sep 2025 | Natural Gas |
| Milford Power LP | Milford Power LLC | Milford, MA | ISO New England (ISNE) | 253.1 GWh | Feb 1993 | 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 |
| Rollinsford | Green Mountain Power Corp | Rollinsford, NH | ISO New England (ISNE) | 2.3 GWh | Sep 1986 | Dec 2024 | Water |
| 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% |
| Wheelabrator Lisbon | Wheelabrator Environmental Systems | Lisbon, CT | ISO New England (ISNE) | 101.0 GWh | Sep 1995 | Sep 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Dartmouth College Heating Plant | Dartmouth College | Hanover, NH | ISO New England (ISNE) | 10.1 GWh | Dec 1969 | Sep 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 |
| Lake Road Generating Plant | Lake Road Generating Co LP | Dayville, CT | ISO New England (ISNE) | 5.8 TWh | Feb 2002 | Sep 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 |
| Pittsfield Hydro | KEI (Maine) Power Management (II) LLC | Burnham, ME | ISO New England (ISNE) | 3.5 GWh | Jun 1986 | Dec 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 |
| Westbrook Energy Center Power Plant | Westbrook Energy Center | Westbrook, ME | ISO New England (ISNE) | 2.9 TWh | Apr 2001 | Sep 2025 | Natural Gas |
| Pratt & Whitney | United Technologies | East Hartford, CT | ISO New England (ISNE) | 81.9 GWh | Dec 1991 | Sep 2025 | Natural Gas |
| Collins Facility | Relevate Power Management LLC | Wilbraham, MA | ISO New England (ISNE) | 6.8 GWh | Feb 1985 | Dec 2023 | 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% |
| 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 |
| Great Lakes Hydro America - ME | Great Lakes Hydro America LLC | Millinocket, ME | ISO New England (ISNE) | 570.9 GWh | Jun 1917 | Dec 2024 | Water |
| Berlin Gorham | Great Lakes Hydro America LLC | Berlin, NH | ISO New England (ISNE) | 133.5 GWh | Dec 1913 | Dec 2024 | Water |
| Upper Barker | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 4.7 GWh | Apr 1987 | Dec 2024 | Water |
| Medway Hydro | Brookfield Black Bear Hydro, LLC | Medway, ME | ISO New England (ISNE) | 23.3 GWh | Dec 1922 | Dec 2024 | Water |
| Fox Island Wind LLC | Fox Island Wind LLC | Vinalhaven, ME | ISO New England (ISNE) | 7.6 GWh | Oct 2009 | Dec 2024 | Wind |
| Water Treatment 1 & 2 | Connecticut Mun Elec Engy Coop | Groton, CT | ISO New England (ISNE) | 434.0 MWh | Sep 2010 | Sep 2025 | Distillate Fuel Oil |
| 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 |
| Bingham Wind | Onward Energy | Bingham, ME | ISO New England (ISNE) | 489.0 GWh | Nov 2016 | Sep 2025 | Wind |
| Waste Management Crossroads LFGTE | WM Renewable Energy LLC | Norridgewock, ME | ISO New England (ISNE) | 18.4 GWh | Feb 2009 | Dec 2024 | Landfill Gas |
| Orono Hydro Station | Brookfield Black Bear Hydro, LLC | Orono, ME | ISO New England (ISNE) | 5.8 GWh | Dec 2008 | Dec 2024 | Water |
| Chittenden County Solar Partners | Chittenden County Solar Partners LLC | South Burlington, VT | ISO New England (ISNE) | 2.9 GWh | Apr 2011 | Dec 2024 | Solar |
| Norwich WWTP | City of Norwich - (CT) | Norwich, CT | ISO New England (ISNE) | 1.0 MWh | Apr 2006 | Mar 2024 | Distillate Fuel Oil |
| Dartmouth Solar | Consolidated Edison Development Inc. | Dartmouth, MA | ISO New England (ISNE) | 2.0 GWh | Feb 2011 | Dec 2024 | Solar |
| Kleen Energy Systems Project | Kleen Energy Systems, LLC | Middletown, CT | ISO New England (ISNE) | 3.1 TWh | Jun 2011 | Sep 2025 | Natural Gas : 99.3% Distillate Fuel Oil : 0.7% |
| Oakfield Wind Project | Onward Energy | City of Oakfield, ME | ISO New England (ISNE) | 367.0 GWh | Sep 2015 | Sep 2025 | Wind |
| Beaver Ridge Wind | CPV Beaver Ridge Wind LLC | Freedom, ME | ISO New England (ISNE) | 10.4 GWh | Oct 2008 | Dec 2024 | Wind |
| GenConn Middletown LLC | GenConn Middletown LLC | Middletown, CT | ISO New England (ISNE) | 5.9 GWh | May 2011 | Dec 2024 | Kerosene : 57.4% Natural Gas : 42.6% |
| Fairfield University CHP Plant | Fairfield University | Fairfield, CT | ISO New England (ISNE) | 26.1 GWh | Sep 2007 | Dec 2024 | Natural Gas |
| Stetson Wind II | Evergreen Wind, LLC | Danforth, ME | ISO New England (ISNE) | 49.7 GWh | Feb 2010 | Dec 2024 | Wind |
| 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% |
| Rollins Wind Project | Evergreen Wind, LLC | Winn Village, ME | ISO New England (ISNE) | 136.1 GWh | Jun 2011 | Dec 2024 | Wind |
| Stetson Wind I | Evergreen Wind, LLC | Danforth, ME | ISO New England (ISNE) | 120.7 GWh | Dec 2008 | Dec 2024 | Wind |
| GenConn Devon LLC | GenConn Devon LLC | Milford, CT | ISO New England (ISNE) | 4.3 GWh | May 2010 | Dec 2024 | Kerosene : 90.3% Natural Gas : 9.7% |
| Foxwoods CoGen | Foxwoods Resort Casino | Mashantucket, CT | ISO New England (ISNE) | 10.8 GWh | May 2010 | Dec 2024 | Natural Gas |
| Notus Wind 1 | Notus Clean Energy LLC | E. Falmouth, MA | ISO New England (ISNE) | 4.3 GWh | Jun 2010 | Dec 2024 | Wind |
| New England Wind LLC | Avangrid Power LLC | Florida, MA | ISO New England (ISNE) | 74.8 GWh | Nov 2012 | Sep 2025 | Wind |
| Indian Orchard PV Facility | Western Massachusetts Electric Company | Springfield, MA | ISO New England (ISNE) | 2.5 GWh | Nov 2011 | Dec 2024 | Solar |
| Sheffield Wind | Evergreen Wind, LLC | Sheffield, VT | ISO New England (ISNE) | 72.9 GWh | Sep 2011 | Sep 2025 | Wind |
| Bull Hill Wind Project | Evergreen Wind, LLC | Eastbrook, ME | ISO New England (ISNE) | 74.0 GWh | Sep 2012 | Dec 2024 | Wind |
| Kibby Wind Facility | Helix Maine Wind Development, LLC | Chain of Ponds, ME | ISO New England (ISNE) | 261.9 GWh | Sep 2009 | Sep 2025 | Wind |
| HSCo CHP | Cartier Energy, LLC | Hartford, CT | ISO New England (ISNE) | 27.3 GWh | Sep 2009 | Dec 2024 | Natural Gas |
| Record Hill Wind | Record Hill Wind LLC | Roxbury, ME | ISO New England (ISNE) | 115.0 GWh | Dec 2011 | Dec 2024 | Wind |
| Gary Court 1 & 2 | Connecticut Mun Elec Engy Coop | Groton, CT | ISO New England (ISNE) | 422.0 MWh | Jun 2010 | Dec 2024 | Distillate Fuel Oil |
| Jewett City 1 | Connecticut Mun Elec Engy Coop | Jewett City, CT | ISO New England (ISNE) | 205.0 MWh | Jan 2010 | Dec 2024 | Distillate Fuel Oil |
| Haverhill Solar Power Project | Massachusetts Electric Co | Haverhill, MA | ISO New England (ISNE) | 1.2 GWh | Nov 2010 | Dec 2024 | Solar |
Summary of Power Plants By State
Figures are based on September 2025 generation numbers.| State | Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Alabama | # 7 | 76 | 12,052.47 GWh |
| Alaska | # 48 | 147 | 527.57 GWh |
| Arizona | # 9 | 183 | 11,602.92 GWh |
| Arkansas | # 21 | 117 | 5,844.09 GWh |
| California | # 4 | 1,769 | 19,371.91 GWh |
| Colorado | # 30 | 304 | 4,433.17 GWh |
| Connecticut | # 32 | 168 | 3,779.74 GWh |
| Delaware | # 49 | 33 | 419.31 GWh |
| District of Columbia | # 51 | 16 | 16.99 GWh |
| Florida | # 2 | 323 | 24,446.09 GWh |
| Georgia | # 8 | 266 | 11,628.97 GWh |
| Hawaii | # 47 | 73 | 826.54 GWh |
| Idaho | # 44 | 148 | 1,495.33 GWh |
| Illinois | # 5 | 385 | 14,642.93 GWh |
| Indiana | # 14 | 213 | 8,730.35 GWh |
| Iowa | # 26 | 295 | 5,224.35 GWh |
| Kansas | # 25 | 189 | 5,250.86 GWh |
| Kentucky | # 23 | 60 | 5,806.86 GWh |
| Louisiana | # 13 | 87 | 9,343.34 GWh |
| Maine | # 45 | 217 | 1,135.36 GWh |
| Maryland | # 39 | 204 | 2,935.42 GWh |
| Massachusetts | # 41 | 652 | 1,746.92 GWh |
| Michigan | # 11 | 279 | 10,468.02 GWh |
| Minnesota | # 29 | 769 | 4,717.95 GWh |
| Mississippi | # 20 | 58 | 6,625.37 GWh |
| Missouri | # 22 | 128 | 5,843.17 GWh |
| State | Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Montana | # 40 | 72 | 1,949.24 GWh |
| Nebraska | # 34 | 132 | 3,501.38 GWh |
| Nevada | # 31 | 114 | 4,053.88 GWh |
| New Hampshire | # 42 | 60 | 1,549.07 GWh |
| New Jersey | # 27 | 399 | 4,969.45 GWh |
| New Mexico | # 36 | 145 | 3,317.84 GWh |
| New York | # 12 | 966 | 10,145.62 GWh |
| North Carolina | # 10 | 917 | 11,211.15 GWh |
| North Dakota | # 37 | 60 | 3,089.17 GWh |
| Ohio | # 6 | 201 | 12,818.31 GWh |
| Oklahoma | # 17 | 143 | 7,364.05 GWh |
| Oregon | # 28 | 282 | 4,812.51 GWh |
| Pennsylvania | # 3 | 260 | 19,731.43 GWh |
| Rhode Island | # 46 | 100 | 863.62 GWh |
| South Carolina | # 16 | 207 | 7,861.23 GWh |
| South Dakota | # 43 | 52 | 1,535.17 GWh |
| Tennessee | # 19 | 88 | 6,829.06 GWh |
| Texas | # 1 | 946 | 51,969.48 GWh |
| Utah | # 35 | 126 | 3,419.48 GWh |
| Vermont | # 50 | 120 | 165.14 GWh |
| Virginia | # 15 | 241 | 8,580.52 GWh |
| Washington | # 18 | 138 | 7,120.43 GWh |
| West Virginia | # 38 | 39 | 3,057.29 GWh |
| Wisconsin | # 24 | 251 | 5,674.74 GWh |
| Wyoming | # 33 | 73 | 3,641.70 GWh |