Directory of Power Plants in Maine
Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
---|---|---|---|---|---|---|---|
Unity Solar | Madison Energy Holdings LLC | Unity, ME | ISO New England (ISNE) | 7.3 GWh | Nov 2021 | Dec 2023 | Solar |
International Paper Jay Hydro | Eagle Creek Renewable Energy, LLC | Jay, ME | ISO New England (ISNE) | 7.1 GWh | Dec 1911 | Sep 2023 | Water |
Athens AT01 | Nautilus Solar Solutions | Athens, ME | ISO New England (ISNE) | 6.9 GWh | May 2022 | Dec 2023 | Solar |
Augusta PV - BD Solar Augusta LLC | BD Solar Augusta LLC | Augusta, ME | ISO New England (ISNE) | 6.7 GWh | May 2021 | Dec 2023 | Solar |
Gardiner | KEI (Maine) Power Management (III) LLC | Gardiner, ME | ISO New England (ISNE) | 6.7 GWh | Jun 1985 | Dec 2023 | Water |
Upper Barker | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 6.6 GWh | Apr 1987 | Dec 2023 | Water |
Hartland Solar | Madison Energy Holdings LLC | Hartland, ME | ISO New England (ISNE) | 6.4 GWh | Nov 2021 | Dec 2023 | Solar |
Lewiston Junction Road Solar | NextGrid Peppertree, LLC | Poland, ME | ISO New England (ISNE) | 6.3 GWh | Dec 2021 | Dec 2023 | Solar |
BD Solar Hancock LLC | BD Solar Hancock LLC | Augusta, ME | ISO New England (ISNE) | 6.2 GWh | May 2022 | Mar 2023 | Solar |
Milo CSG | Milo CSG, LLC | Milo, ME | ISO New England (ISNE) | 6.0 GWh | Jan 2022 | Dec 2023 | Solar |
International Paper Riley Hydro | Eagle Creek Renewable Energy, LLC | Jay, ME | ISO New England (ISNE) | 5.9 GWh | Nov 1981 | Dec 2023 | Water |
Water Street Solar | AES Distributed Energy | Randolph, ME | ISO New England (ISNE) | 5.8 GWh | Nov 2022 | Dec 2023 | Solar |
Fryeburg | Nautilus Solar Solutions | Fryeburg, ME | ISO New England (ISNE) | 5.7 GWh | Apr 2023 | Dec 2023 | Solar |
Pittsfield Hydro | KEI (Maine) Power Management (II) LLC | Burnham, ME | ISO New England (ISNE) | 5.7 GWh | Jun 1986 | Dec 2023 | Water |
Fox Island Wind LLC | Fox Island Wind LLC | Vinalhaven, ME | ISO New England (ISNE) | 5.7 GWh | Oct 2009 | Dec 2023 | Wind |
Merrill Road Solar | NextGrid Mangrove, LLC | Lewiston, ME | ISO New England (ISNE) | 5.6 GWh | Feb 2022 | Dec 2023 | Solar |
Washington WS01 | Nautilus Solar Solutions | Washington, ME | ISO New England (ISNE) | 5.5 GWh | May 2022 | Dec 2023 | Solar |
Pumpkin Hill | KEI (Maine) Power Management (II) LLC | Lowell, ME | ISO New England (ISNE) | 5.5 GWh | Feb 1987 | Dec 2023 | Water |
IOS - MEW Phase 1 | IGS ORIX Solar I, LLC | Madison, ME | ISO New England (ISNE) | 5.4 GWh | Dec 2016 | Dec 2023 | Solar |
Messalonskee 5 | Messalonskee Stream Hydro LLC | Waterville, ME | ISO New England (ISNE) | 5.1 GWh | Dec 1934 | Dec 2023 | Water |
Livermore Falls CSG | Livermore Falls CSG, LLC | Livermore Falls, ME | ISO New England (ISNE) | 5.0 GWh | Apr 2022 | Dec 2023 | Solar |
Salmon Falls | Green Mountain Power Corp | South Berwick, ME | ISO New England (ISNE) | 4.9 GWh | Jun 1986 | Dec 2023 | Water |
BWC Beech Ridge Brook, LLC | Navisun LLC | Scarborough, ME | ISO New England (ISNE) | 4.7 GWh | Apr 2023 | Dec 2023 | Solar |
Webb Road Solar | NextGrid Mastic, LLC | Waterville, ME | ISO New England (ISNE) | 4.7 GWh | Aug 2022 | Dec 2023 | Solar |
Acton | Acton H Road Solar 1, LLC | Acton, ME | ISO New England (ISNE) | 4.6 GWh | Nov 2021 | Dec 2023 | Solar |
Augusta | Maine DG Solar Augusta, LLC | Augusta, ME | ISO New England (ISNE) | 4.6 GWh | Feb 2022 | Dec 2023 | Solar |
BWC Maces Pond LLC | Navisun LLC | Rockport, ME | ISO New England (ISNE) | 4.4 GWh | Nov 2021 | Dec 2023 | Solar |
Barefoot Solar | Madison Energy Investments LLC | Fairfiled, ME | ISO New England (ISNE) | 4.1 GWh | Nov 2022 | Dec 2023 | Solar |
Dynamic Corinth (CSG) | MN8 Energy LLC | Corinth, ME | ISO New England (ISNE) | 4.0 GWh | Sep 2022 | Dec 2023 | Solar |
Mainely Solar (Wyman Hill Solar LLC) | Wyman Hill Solar, LLC | Rumford, ME | ISO New England (ISNE) | 3.9 GWh | Nov 2022 | Dec 2023 | Solar |
Loring | VC Renewables | Limestone, ME | ISO New England (ISNE) | 3.6 GWh | Apr 2023 | Dec 2023 | Solar |
Mechanic Falls | KEI (Maine) Power Management (IV) LLC | Mechanic Falls, ME | ISO New England (ISNE) | 3.0 GWh | Mar 1986 | Dec 2023 | Water |
Lisbon Street Solar | NextGrid Cliffrose, LLC | Lewiston, ME | ISO New England (ISNE) | 2.7 GWh | Mar 2022 | Dec 2023 | Solar |
Cenergy - Wiscasset (CSG) | Luminace Sunbeam Development Holdings, LLC | Wiscasset, ME | ISO New England (ISNE) | 2.5 GWh | Jun 2023 | Dec 2023 | Solar |
AES Daigle Solar, LLC | AES Clean Energy | Fort Kent, ME | (NBSO) | 2.2 GWh | Apr 2023 | Dec 2023 | Solar |
AES Pelletier Solar, LLC | AES Clean Energy | Fort Kent, ME | (NBSO) | 2.1 GWh | Apr 2023 | Sep 2023 | Solar |
Pittsfield Solar (N. Main St) | Maine DG Solar Pittsfield, LLC | Pittsfield, ME | ISO New England (ISNE) | 2.1 GWh | Sep 2023 | Dec 2023 | Solar |
Solar Mule, LLC | Solar Mule, LLC | Oakland, ME | ISO New England (ISNE) | 2.0 GWh | Aug 2017 | Dec 2023 | Solar |
Cataract Hydro | Brookfield White Pine Hydro LLC | Saco, ME | ISO New England (ISNE) | 2.0 GWh | Dec 1936 | Dec 2023 | Water |
BD Solar Ellsworth LLC | BD Solar Hancock North LLC | Augusta, ME | ISO New England (ISNE) | 1.9 GWh | May 2022 | Dec 2023 | Solar |
Naples | Naples Casco Solar 1, LLC | Naples, ME | ISO New England (ISNE) | 1.8 GWh | Nov 2021 | Dec 2023 | Solar |
Samoset Solar | Samoset Solar, LLC | Rockport, ME | ISO New England (ISNE) | 1.8 GWh | Jun 2023 | Dec 2023 | Solar |
Cenergy - Waterville (CSG) | Luminace Sunbeam Development Holdings, LLC | Waterville, ME | ISO New England (ISNE) | 1.8 GWh | Jun 2023 | Dec 2023 | Solar |
Caribou | VC Renewables | Caribou, ME | ISO New England (ISNE) | 1.7 GWh | Jul 2023 | Dec 2023 | Solar |
ME-EDFR-Phase I-Woolwich | Green Mile Solar, LLC | Woolwich, ME | ISO New England (ISNE) | 1.5 GWh | Aug 2023 | Dec 2023 | Solar |
Fort Fairfield | Standard Solar | Fairfield, ME | ISO New England (ISNE) | 1.4 GWh | Jul 2023 | Dec 2023 | Solar |
Sidney | Nautilus Solar Solutions | Sidney, ME | ISO New England (ISNE) | 1.4 GWh | Apr 2023 | Dec 2023 | Solar |
ME Novel Lighthouse - Front St. Solar CSG | Luminace Sunbeam Development Holdings, LLC | Skowhegan, ME | ISO New England (ISNE) | 1.4 GWh | Apr 2023 | Dec 2023 | Solar |
MEVS DOT 109 | MEVS DOT, LLC | Augusta, ME | ISO New England (ISNE) | 1.4 GWh | Jun 2023 | Dec 2023 | Solar |
Broadway Solar (CSG) | NextGrid Bitterbush, LLC | Bangor, ME | ISO New England (ISNE) | 1.3 GWh | Aug 2023 | Dec 2023 | Solar |
Treasure Lane Solar 1 | AES Clean Energy | Manchester, ME | ISO New England (ISNE) | 1.0 GWh | Apr 2023 | Dec 2023 | Solar |
Squa Pan Hydro Station | Algonquin Northern Maine | Masardis, ME | (NBSO) | 934.9 MWh | Nov 1941 | Aug 2023 | Water |
Standish | Nautilus Solar Solutions | Standish, ME | ISO New England (ISNE) | 535.0 MWh | Sep 2023 | Dec 2023 | Solar |
Cape Gas Turbine | FPL Energy Cape LLC | Portland, ME | ISO New England (ISNE) | 532.0 MWh | Dec 1969 | Dec 2023 | Distillate Fuel Oil |
Corkwood Solar (CSG) | NextGrid Corkwood, LLC | Howland, ME | ISO New England (ISNE) | 344.0 MWh | Oct 2023 | Dec 2023 | Solar |
Caterpillar Hill | AES Clean Energy | Sedgwick, ME | ISO New England (ISNE) | 235.0 MWh | Nov 2023 | Dec 2023 | Solar |
Cenergy - Richards (CSG) | Luminace Sunbeam Development Holdings, LLC | Fairfield, ME | ISO New England (ISNE) | 220.0 MWh | Sep 2023 | Dec 2023 | Solar |
Arctaris Saddleback Solar | Arctaris Saddleback Solar, LLC | Dallas Plantation, ME | ISO New England (ISNE) | 201.0 MWh | Oct 2023 | Dec 2023 | Solar |
Cenergy - Kiger | Luminace Sunbeam Development Holdings, LLC | Embden, ME | ISO New England (ISNE) | 122.0 MWh | Nov 2023 | Dec 2023 | Solar |
Pleasant Street | Greenbacker Renewable Energy Corporation | Wilton, ME | ISO New England (ISNE) | 98.0 MWh | Nov 2023 | Dec 2023 | Solar |
Robbins Lumber | Robbins Lumber Inc | Searsmont, ME | ISO New England (ISNE) | 97.0 MWh | Dec 1980 | Dec 2023 | Distillate Fuel Oil |
Richmond Hill | Greenbacker Renewable Energy Corporation | Richmond, ME | ISO New England (ISNE) | 16.0 MWh | Nov 2023 | Dec 2023 | Solar |
Browse Power Plants By Maine Counties
Figures are based on March 2025 generation numbers.County | State Rank | Active Plants | Mar 2025 Generation |
---|---|---|---|
Cumberland County, ME | # 1 | 20 | 3.4 TWh |
Penobscot County, ME | # 2 | 43 | 2.3 TWh |
Somerset County, ME | # 3 | 35 | 1.9 TWh |
Oxford County, ME | # 4 | 18 | 1.4 TWh |
Androscoggin County, ME | # 5 | 28 | 800.4 GWh |
Franklin County, ME | # 6 | 16 | 785.4 GWh |
Aroostook County, ME | # 7 | 26 | 573.8 GWh |
Washington County, ME | # 8 | 8 | 549.9 GWh |
County | State Rank | Active Plants | Mar 2025 Generation |
---|---|---|---|
Piscataquis County, ME | # 9 | 4 | 516.6 GWh |
Hancock County, ME | # 10 | 13 | 463.3 GWh |
York County, ME | # 11 | 19 | 325.5 GWh |
Kennebec County, ME | # 12 | 24 | 214.5 GWh |
Waldo County, ME | # 13 | 6 | 191.1 GWh |
Sagadahoc County, ME | # 14 | 4 | 72.1 GWh |
Knox County, ME | # 15 | 5 | 17.4 GWh |
Lincoln County, ME | # 16 | 3 | 2.5 GWh |