Directory of Power Plants in Maine
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| West Enfield Hydro | Brookfield Black Bear Hydro, LLC | West Enfield, ME | ISO New England (ISNE) | 77.5 GWh | Mar 1988 | 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 |
| Weston Hydro | Brookfield White Pine Hydro LLC | Skowhegan, ME | ISO New England (ISNE) | 57.4 GWh | Dec 1919 | Dec 2024 | Water |
| William F Wyman Hybrid | FPL Energy Wyman LLC | Yarmouth, ME | ISO New England (ISNE) | 65.9 GWh | Dec 1956 | Sep 2025 | Residual Fuel Oil : 99.2% Distillate Fuel Oil : 0.8% |
| Williams Hydro | Brookfield White Pine Hydro LLC | Solon, ME | ISO New England (ISNE) | 80.2 GWh | Dec 1938 | Dec 2024 | Water |
| Winslow PV - BD Solar 2 LLC | BD Solar 2 LLC | Winslow, ME | ISO New England (ISNE) | 12.6 GWh | Jun 2022 | Dec 2024 | Solar |
| 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% |
| Worumbo Hydro Station | Eagle Creek Renewable Energy, LLC | Lisbon Falls, ME | ISO New England (ISNE) | 88.7 GWh | Jan 1989 | Dec 2024 | Water |
| Wyman Hydro | Brookfield White Pine Hydro LLC | Bingham, ME | ISO New England (ISNE) | 337.1 GWh | Dec 1929 | Dec 2024 | Water |
| Wymans Deblois | REC RWD, LLC | Deblois, ME | (NBSO) | 244.0 MWh | Sep 2024 | Dec 2024 | Solar |
| 15 Glen Harris RD | ME Sandy River LLC | New Sharon, ME | ISO New England (ISNE) | 1.8 GWh | May 2024 | Dec 2024 | Solar |
Browse Power Plants By Maine Counties
Figures are based on September 2025 generation numbers.| County | State Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Androscoggin County, ME | # 5 | 29 | 758.2 GWh |
| Aroostook County, ME | # 8 | 32 | 625.5 GWh |
| Cumberland County, ME | # 2 | 22 | 3.3 TWh |
| Franklin County, ME | # 6 | 16 | 750.4 GWh |
| Hancock County, ME | # 10 | 14 | 479.2 GWh |
| Kennebec County, ME | # 13 | 27 | 198.0 GWh |
| Knox County, ME | # 15 | 5 | 22.0 GWh |
| Lincoln County, ME | # 16 | 4 | 18.4 GWh |
| County | State Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Oxford County, ME | # 3 | 21 | 1.7 TWh |
| Penobscot County, ME | # 1 | 47 | 3.8 TWh |
| Piscataquis County, ME | # 9 | 4 | 526.8 GWh |
| Sagadahoc County, ME | # 14 | 5 | 63.5 GWh |
| Somerset County, ME | # 4 | 36 | 1.6 TWh |
| Waldo County, ME | # 11 | 9 | 272.1 GWh |
| Washington County, ME | # 7 | 9 | 696.9 GWh |
| York County, ME | # 12 | 22 | 262.0 GWh |