Directory of Power Plants in Maine
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Searsmont Road Lincolnville Solar, LLC | REA Investments, LLC | Lincolnville, ME | (NBSO) | 2.4 GWh | Mar 2022 | Dec 2025 | Solar |
| Sheridan Road Solar Farm | REA Investments, LLC | Ashland, ME | ISO New England (ISNE) | 4.2 GWh | Jul 2024 | Dec 2025 | Solar |
| Skyway Avenue Solar Farm | REA Investments, LLC | Frenchville, ME | ISO New England (ISNE) | 2.7 GWh | Feb 2024 | Dec 2025 | Solar |
| Wymans Deblois | REC RWD, LLC | Deblois, ME | (NBSO) | 7.8 GWh | Sep 2024 | Dec 2025 | Solar |
| Record Hill Wind | Record Hill Wind LLC | Roxbury, ME | ISO New England (ISNE) | 110.2 GWh | Dec 2011 | Dec 2025 | Wind |
| ReEnergy Livermore Falls | ReEnergy Livermore Falls | Livermore Falls, ME | ISO New England (ISNE) | 273.8 GWh | Jul 1992 | Dec 2025 | Wood/Wood Waste Solids |
| ReEnergy Stratton LLC | ReEnergy Stratton LLC | Stratton, ME | ISO New England (ISNE) | 199.8 GWh | Oct 1989 | Dec 2025 | Wood/Wood Waste Solids |
| S D Warren Westbrook | Relevate Power Management LLC | Westbrook, ME | ISO New England (ISNE) | 15.0 GWh | Dec 1902 | Dec 2025 | Water |
| Georges River Energy | Robbins Lumber Inc | Searsmont, ME | ISO New England (ISNE) | 51.9 GWh | Nov 2018 | Dec 2024 | Wood/Wood Waste Solids |
| RoxWind | RoxWind LLC | Roxbury, ME | ISO New England (ISNE) | 44.1 GWh | Oct 2021 | Dec 2025 | Wind |
| Rumford Power LLC | Rumford Power | Rumford, ME | ISO New England (ISNE) | 792.6 GWh | Jun 2000 | Dec 2025 | Natural Gas |
| Samoset Solar | Samoset Solar, LLC | Rockport, ME | ISO New England (ISNE) | 3.9 GWh | Jun 2023 | Dec 2025 | Solar |
| Sanford Solar | Sanford Airport Solar, LLC | Sanford, ME | ISO New England (ISNE) | 87.3 GWh | Oct 2020 | May 2026 | Solar |
| Somerset Plant | Sappi Fine Paper North America-Somerset | Skowhegan, ME | ISO New England (ISNE) | 567.7 GWh | Dec 1975 | May 2026 | Black Liquor : 45.9% Wood/Wood Waste Solids : 32.4% Natural Gas : 13.1% Tire-derived Fuels : 4.1% Residual Fuel Oil : 3.7% Sludge Waste : 0.5% |
| ME - EDF - Phase II - Belfast | Shining Solar Partners, LLC | Belfast, ME | ISO New England (ISNE) | 7.5 GWh | Aug 2024 | Dec 2025 | Solar |
| French Road Solar | SoCore Energy LLC | Ashland, ME | ISO New England (ISNE) | 3.1 GWh | Nov 2024 | Dec 2025 | Solar |
| Madawaska Solar | SoCore Energy LLC | Saint David, ME | ISO New England (ISNE) | 3.9 GWh | Nov 2024 | Dec 2025 | Solar |
| Caribou Solar | SoCore Energy LLC | Caribou, ME | ISO New England (ISNE) | 6.2 GWh | Nov 2024 | Dec 2025 | Solar |
| ME Augusta 13 York Farm Rd Solar | SOL ME Augusta 13 York Farm, LLC | Augusta, ME | ISO New England (ISNE) | 1.5 GWh | Dec 2023 | Dec 2025 | Solar |
| Solar Mule, LLC | Solar Mule, LLC | Oakland, ME | ISO New England (ISNE) | 2.0 GWh | Aug 2017 | Dec 2024 | Solar |
| Passadumkeag Windpark LLC | Southern Power Co | Greenbush, ME | ISO New England (ISNE) | 137.9 GWh | Jun 2016 | May 2026 | Wind |
| Fort Fairfield | Standard Solar | Fort Fairfield, ME | ISO New England (ISNE) | 8.1 GWh | Jul 2023 | Dec 2025 | Solar |
| NE Renewable Power West Enfield | Stored Solar J&WE | West Enfield, ME | ISO New England (ISNE) | 42.6 GWh | Nov 1987 | Dec 2025 | Wood/Wood Waste Solids |
| NE Renewable Power Jonesboro | Stored Solar J&WE | Jonesboro, ME | ISO New England (ISNE) | 16.0 MWh | Nov 1987 | Jun 2025 | Gaseous Propane : 66.7% Wood/Wood Waste Solids : 33.3% |
| Three Corners Solar | Three Corners Solar, LLC | Unity, ME | ISO New England (ISNE) | 197.1 GWh | Jun 2024 | May 2026 | Solar |
| Pejepscot Hydroelectric Project | Topsham Hydro Partners | Topsham, ME | ISO New England (ISNE) | 49.7 GWh | Oct 1987 | Dec 2025 | Water |
| ME-EDFR-Phase I-Embden | Tower Solar Partners, LLC | Embden, ME | ISO New England (ISNE) | 8.2 GWh | Nov 2023 | Dec 2025 | Solar |
| Twin Rivers Paper Co LLC | Twin Rivers Paper Co LLC | Madawaska, ME | (NBSO) | 102.8 GWh | Apr 1987 | May 2026 | Purchased Steam |
| Valley Sun Solar | Valley Sun Solar LLC | Grand Isle, ME | ISO New England (ISNE) | 3.1 GWh | Nov 2024 | Dec 2025 | Solar |
| Walden Solar Maine V | Walden Solar Maine V LLC | Leeds, ME | ISO New England (ISNE) | 35.9 GWh | Nov 2024 | Dec 2025 | Solar |
| Silver Maple | WEB Silver Maple Wind LLC | Clifton, ME | ISO New England (ISNE) | 63.9 GWh | Sep 2022 | Dec 2025 | Wind |
| Bates College Skowhegan | Westbound Solar 3, LLC | Skowhegan, ME | ISO New England (ISNE) | 8.4 GWh | Aug 2023 | Dec 2025 | Solar |
| Westbrook Energy Center Power Plant | Westbrook Energy Center | Westbrook, ME | ISO New England (ISNE) | 3.5 TWh | Apr 2001 | May 2026 | Natural Gas |
| Waste Management Crossroads LFGTE | WM Renewable Energy LLC | Norridgewock, ME | ISO New England (ISNE) | 21.9 GWh | Feb 2009 | Dec 2025 | Landfill Gas |
| Woodland Pulp, LLC | Woodland Pulp LLC | Baileyville, ME | (NBSO) | 381.5 GWh | May 1906 | Dec 2024 | Black Liquor : 50.1% Natural Gas : 29.3% Water : 12.3% Wood/Wood Waste Solids : 8.3% |
| Mainely Solar (Wyman Hill Solar LLC) | Wyman Hill Solar, LLC | Rumford, ME | ISO New England (ISNE) | 5.8 GWh | Nov 2022 | Dec 2025 | Solar |
Browse Power Plants By Maine Counties
Figures are based on May 2026 generation numbers.| County | State Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Cumberland County, ME | # 1 | 25 | 4.1 TWh |
| Penobscot County, ME | # 2 | 47 | 2.6 TWh |
| Oxford County, ME | # 3 | 21 | 1.7 TWh |
| Somerset County, ME | # 4 | 37 | 1.6 TWh |
| Washington County, ME | # 5 | 9 | 954.6 GWh |
| Androscoggin County, ME | # 6 | 31 | 764.6 GWh |
| Franklin County, ME | # 7 | 17 | 756.9 GWh |
| Aroostook County, ME | # 8 | 32 | 675.2 GWh |
| County | State Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Piscataquis County, ME | # 9 | 4 | 505.6 GWh |
| Hancock County, ME | # 10 | 16 | 483.5 GWh |
| York County, ME | # 11 | 25 | 299.8 GWh |
| Waldo County, ME | # 12 | 9 | 285.2 GWh |
| Kennebec County, ME | # 13 | 28 | 209.1 GWh |
| Sagadahoc County, ME | # 14 | 5 | 65.0 GWh |
| Knox County, ME | # 15 | 5 | 22.2 GWh |
| Lincoln County, ME | # 16 | 4 | 21.0 GWh |