Directory of Power Plants in Maine
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Squa Pan Hydro Station | Algonquin Northern Maine | Masardis, ME | (NBSO) | 958.0 MWh | Nov 1941 | Aug 2023 | Water |
| Stillwater B | Brookfield Black Bear Hydro, LLC | Old Town, ME | ISO New England (ISNE) | 14.3 GWh | Aug 2013 | Dec 2023 | Water |
| Stillwater Hydro Station | Brookfield Black Bear Hydro, LLC | Stillwater, ME | ISO New England (ISNE) | 13.1 GWh | Dec 1912 | Dec 2023 | Water |
| Shawmut | Brookfield White Pine Hydro LLC | Shawmut, ME | ISO New England (ISNE) | 41.1 GWh | Dec 1912 | Dec 2023 | Water |
| Skelton | Brookfield White Pine Hydro LLC | Dayton, ME | ISO New England (ISNE) | 148.7 GWh | Dec 1947 | Dec 2023 | Water |
| Saddleback Ridge Wind Farm | CPV Saddleback Ridge Wind, LLC | Carthage, ME | ISO New England (ISNE) | 96.1 GWh | Nov 2014 | Dec 2022 | Wind |
| Spruce Mountain WInd | CPV Spruce Mountain Wind LLC | Bryant Pond, ME | ISO New England (ISNE) | 59.5 GWh | Nov 2011 | Dec 2023 | Wind |
| S D Warren Westbrook | Elevate Power Management LLC | Westbrook, ME | ISO New England (ISNE) | 17.8 GWh | Dec 1902 | Dec 2022 | Water |
| Stetson Wind I | Evergreen Wind, LLC | Danforth, ME | ISO New England (ISNE) | 122.0 GWh | Dec 2008 | Dec 2023 | Wind |
| Stetson Wind II | Evergreen Wind, LLC | Danforth, ME | ISO New England (ISNE) | 52.2 GWh | Feb 2010 | Dec 2023 | Wind |
| Salmon Falls | Green Mountain Power Corp | South Berwick, ME | ISO New England (ISNE) | 5.0 GWh | Jun 1986 | Dec 2023 | Water |
| Sidney | Nautilus Solar Solutions | Sidney, ME | ISO New England (ISNE) | 1.4 GWh | Apr 2023 | Dec 2023 | Solar |
| Standish | Nautilus Solar Solutions | Standish, ME | ISO New England (ISNE) | 535.0 MWh | Sep 2023 | Dec 2023 | Solar |
| Samoset Solar | Samoset Solar, LLC | Rockport, ME | ISO New England (ISNE) | 1.8 GWh | Jun 2023 | Dec 2023 | Solar |
| Sanford Solar | Sanford Airport Solar, LLC | Sanford, ME | ISO New England (ISNE) | 95.8 GWh | Oct 2020 | Jun 2024 | Solar |
| Somerset Plant | Sappi Fine Paper North America-Somerset | Skowhegan, ME | ISO New England (ISNE) | 507.5 GWh | Dec 1975 | Jun 2024 | Black Liquor : 43.6% Wood/Wood Waste Solids : 38.8% Tire-derived Fuels : 7.1% Natural Gas : 7.1% Residual Fuel Oil : 2.2% Sludge Waste : 1.0% |
| SCS Harpswell 012903 Brunswick, LLC | Sol Systems | Brunswick, ME | ISO New England (ISNE) | 1.6 GWh | Oct 2022 | Dec 2022 | Solar |
| Solar Mule, LLC | Solar Mule, LLC | Oakland, ME | ISO New England (ISNE) | 2.1 GWh | Aug 2017 | Dec 2023 | Solar |
| Silver Maple | WEB Silver Maple Wind LLC | Clifton, ME | ISO New England (ISNE) | 57.7 GWh | Sep 2022 | Dec 2023 | Wind |
Browse Power Plants By Maine Counties
Figures are based on June 2024 generation numbers.| County | State Rank | Active Plants | Jun 2024 Generation |
|---|---|---|---|
| Cumberland County, ME | # 1 | 20 | 3.5 TWh |
| Penobscot County, ME | # 2 | 42 | 2.3 TWh |
| Somerset County, ME | # 3 | 34 | 2.0 TWh |
| Franklin County, ME | # 4 | 16 | 1.3 TWh |
| Oxford County, ME | # 5 | 17 | 1.0 TWh |
| Androscoggin County, ME | # 6 | 28 | 871.8 GWh |
| Washington County, ME | # 7 | 7 | 576.7 GWh |
| Aroostook County, ME | # 8 | 21 | 572.0 GWh |
| County | State Rank | Active Plants | Jun 2024 Generation |
|---|---|---|---|
| Piscataquis County, ME | # 9 | 4 | 482.7 GWh |
| Hancock County, ME | # 10 | 13 | 477.1 GWh |
| York County, ME | # 11 | 19 | 353.0 GWh |
| Kennebec County, ME | # 12 | 24 | 224.9 GWh |
| Sagadahoc County, ME | # 13 | 4 | 77.1 GWh |
| Waldo County, ME | # 14 | 6 | 54.8 GWh |
| Knox County, ME | # 15 | 5 | 18.4 GWh |
| Lincoln County, ME | # 16 | 3 | 2.5 GWh |