Directory of Power Plants in Maine
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Canton GLC Solar, LLC | Addicus Advisors | Canton, ME | ISO New England (ISNE) | 4.7 GWh | Mar 2024 | Dec 2025 | Solar |
| Canton Mountain Wind | CPV Canton Mountain Wind LLC | Canton, ME | ISO New England (ISNE) | 56.4 GWh | Oct 2017 | Dec 2025 | Wind |
| West Buxton | Brookfield White Pine Hydro LLC | Buxton, ME | ISO New England (ISNE) | 20.6 GWh | Dec 1903 | Dec 2025 | Water |
| Pittsfield Hydro | KEI (Maine) Power Management (II) LLC | Burnham, ME | ISO New England (ISNE) | 2.7 GWh | Jun 1986 | Dec 2025 | Water |
| Bucksport Generation LLC | Bucksport Generation LLC | Bucksport, ME | ISO New England (ISNE) | 26.7 GWh | Jun 1965 | Aug 2026 | Natural Gas : 54.6% Distillate Fuel Oil : 45.4% |
| Penobscot Narrows Solar I | Penobscot Narrows Solar I LLC | Bucksport, ME | ISO New England (ISNE) | 7.2 GWh | May 2024 | Dec 2025 | Solar |
| Spruce Mountain WInd | CPV Spruce Mountain Wind LLC | Bryant Pond, ME | ISO New England (ISNE) | 52.6 GWh | Nov 2011 | Dec 2025 | Wind |
| Brunswick Hydro | Brookfield White Pine Hydro LLC | Brunswick, ME | ISO New England (ISNE) | 69.6 GWh | Feb 1982 | Dec 2025 | Water |
| SCS Harpswell 012903 Brunswick, LLC | Arevon Energy, Inc. | Brunswick, ME | ISO New England (ISNE) | 7.3 GWh | Oct 2022 | Dec 2025 | Solar |
| ME - EDFR - Phase I - Bristol | Overlook Solar Partners, LLC | Bristol, ME | ISO New England (ISNE) | 8.5 GWh | Nov 2023 | Dec 2025 | Solar |
| Brewer (CSG) | Nautilus Solar Solutions | Brewer, ME | ISO New England (ISNE) | 7.0 GWh | Jul 2024 | Dec 2025 | Solar |
| Augusta Road Bowdoin Solar, LLC | REA Investments, LLC | Bowdoin, ME | ISO New England (ISNE) | 4.8 GWh | Jan 2022 | Dec 2025 | Solar |
| Wyman Hydro | Brookfield White Pine Hydro LLC | Bingham, ME | ISO New England (ISNE) | 295.2 GWh | Dec 1929 | Dec 2025 | Water |
| Bingham Wind | Onward Energy | Bingham, ME | ISO New England (ISNE) | 483.7 GWh | Nov 2016 | Aug 2026 | Wind |
| MEVS Clark LLC | MEVS Clark LLC | Bingham, ME | ISO New England (ISNE) | 6.4 GWh | Sep 2023 | Dec 2025 | Solar |
| Berwick Hubbard Solar 1 | Berwick Hubbard Solar 1, LLC | Berwick, ME | ISO New England (ISNE) | 5.8 GWh | Nov 2024 | Dec 2025 | Solar |
| Benton Falls Associates | Essex Hydro Associates LLC | Benton, ME | ISO New England (ISNE) | 9.9 GWh | Nov 1987 | Dec 2025 | Water |
| BWC Unity Pond LLC | Navisun LLC | Benton, ME | ISO New England (ISNE) | 7.4 GWh | Nov 2023 | Dec 2025 | Solar |
| Perkins Road Belfast Solar, LLC | REA Investments, LLC | Belfast, ME | ISO New England (ISNE) | 8.7 GWh | May 2021 | Dec 2025 | Solar |
| ME - EDF - Phase II - Belfast | Shining Solar Partners, LLC | Belfast, ME | ISO New England (ISNE) | 7.5 GWh | Aug 2024 | Dec 2025 | Solar |
| Broadway Solar (CSG) | NextGrid Bitterbush, LLC | Bangor, ME | ISO New England (ISNE) | 6.3 GWh | Aug 2023 | Dec 2025 | Solar |
| Eastern Maine Medical Center | Eastern Maine Medical Center | Bangor, ME | ISO New England (ISNE) | 26.4 GWh | Sep 2006 | Aug 2026 | Natural Gas |
| ME CDG 004 | ME CDG 004 LLC | Bangor, ME | ISO New England (ISNE) | 3.0 GWh | Nov 2024 | Dec 2025 | Solar |
| Woodland Pulp, LLC | Woodland Pulp LLC | Baileyville, ME | (NBSO) | 344.2 GWh | May 1906 | Dec 2025 | Black Liquor : 37.9% Natural Gas : 30.9% Water : 16.6% Wood/Wood Waste Solids : 14.5% |
| MEVS DOT 109 | MEVS DOT, LLC | Augusta, ME | ISO New England (ISNE) | 3.5 GWh | Jun 2023 | 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 |
| Augusta | Maine DG Solar Augusta, LLC | Augusta, ME | ISO New England (ISNE) | 4.8 GWh | Feb 2022 | Dec 2025 | Solar |
| BD Solar Ellsworth LLC | BD Solar Hancock North LLC | Augusta, ME | ISO New England (ISNE) | 9.0 GWh | May 2022 | Dec 2025 | Solar |
| BD Solar Hancock LLC | BD Solar Hancock LLC | Augusta, ME | ISO New England (ISNE) | 11.3 GWh | May 2022 | Dec 2025 | Solar |
| Augusta PV - BD Solar Augusta LLC | BD Solar Augusta LLC | Augusta, ME | ISO New England (ISNE) | 9.3 GWh | May 2021 | Dec 2025 | Solar |
| Church Hill Road Augusta Solar, LLC | REA Investments, LLC | Augusta, ME | ISO New England (ISNE) | 6.5 GWh | Jan 2022 | Dec 2025 | Solar |
| Upper Barker | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 4.0 GWh | Apr 1987 | Dec 2025 | Water |
| Deer Rips | Brookfield White Pine Hydro LLC | Auburn, ME | ISO New England (ISNE) | 50.8 GWh | Dec 1902 | Dec 2025 | Water |
| MMWAC Resource Recovery Facility | Maine Waste to Energy | Auburn, ME | ISO New England (ISNE) | 7.4 GWh | May 1992 | Aug 2026 | Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.2% Natural Gas : 1.9% |
| Barker Lower | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 3.8 GWh | Mar 1986 | Dec 2025 | Water |
| Athens AT01 | Nautilus Solar Solutions | Athens, ME | ISO New England (ISNE) | 7.1 GWh | May 2022 | Dec 2025 | Solar |
| Athens Energy | Athens Energy, LLC | Athens, ME | ISO New England (ISNE) | 56.3 GWh | Sep 2016 | Dec 2025 | Wood/Wood Waste Solids |
| Athens Ridge | Greenbacker Renewable Energy Corporation | Athens, ME | ISO New England (ISNE) | 4.7 GWh | Feb 2024 | Dec 2025 | Solar |
| French Road Solar | SoCore Energy LLC | Ashland, ME | ISO New England (ISNE) | 3.1 GWh | Nov 2024 | Dec 2025 | Solar |
| Sheridan Road Solar Farm | Addicus Advisors | Ashland, ME | ISO New England (ISNE) | 4.2 GWh | Jul 2024 | Dec 2025 | Solar |
| Dairy Farm | Greenbacker Renewable Energy Corporation | Anson, ME | ISO New England (ISNE) | 6.1 GWh | Sep 2024 | Dec 2025 | Solar |
| Acton | Acton H Road Solar 1, LLC | Acton, ME | ISO New England (ISNE) | 4.7 GWh | Nov 2021 | Dec 2025 | Solar |
Browse Power Plants By Maine Counties
Figures are based on December 2025 generation numbers.| County | State Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Lincoln County, ME | # 16 | 4 | 21.0 GWh |
| Knox County, ME | # 15 | 6 | 22.2 GWh |
| Sagadahoc County, ME | # 14 | 5 | 65.0 GWh |
| Kennebec County, ME | # 13 | 34 | 209.2 GWh |
| Waldo County, ME | # 12 | 10 | 276.3 GWh |
| York County, ME | # 11 | 26 | 311.4 GWh |
| Hancock County, ME | # 10 | 16 | 484.9 GWh |
| Piscataquis County, ME | # 9 | 4 | 514.9 GWh |
| County | State Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Aroostook County, ME | # 8 | 33 | 666.5 GWh |
| Androscoggin County, ME | # 7 | 32 | 764.8 GWh |
| Franklin County, ME | # 6 | 18 | 765.3 GWh |
| Washington County, ME | # 5 | 10 | 938.2 GWh |
| Somerset County, ME | # 4 | 38 | 1.6 TWh |
| Oxford County, ME | # 3 | 24 | 1.7 TWh |
| Penobscot County, ME | # 2 | 51 | 2.6 TWh |
| Cumberland County, ME | # 1 | 25 | 4.1 TWh |