Power plants in Maine
270 operating power projects with 6,021 MW of nameplate capacity, from EIA-860M for August 2026.
Projects
270
Nameplate capacity
6,021 MW
Counties with a plant
16
Operators
134
Power markets: ISO-NE prices
Capacity by fuel
Natural gas · 1,579 MW · 5Other fuels · 1,344 MW · 16Wind · 1,217 MW · 22Solar · 960 MW · 175Hydro · 681 MW · 48Battery storage · 239 MW · 4
MW is nameplate from operating generators and batteries. Plant counts use each project's primary fuel, so a coal and gas plant counts once.
Largest power plants in Maine
Top 50 · All 270 plants| Plant | Primary fuel | MW | County | Operator |
|---|---|---|---|---|
| William F Wyman Hybrid | Oil | 863 | Cumberland | FPL Energy Wyman LLC |
| Westbrook Energy Center Power Plant | Natural gas | 564 | Cumberland | Westbrook Energy Center |
| Maine Independence Station | Natural gas | 550 | Penobscot | Casco Bay Energy Co LLC |
| Rumford Power LLC | Natural gas | 275 | Oxford | Rumford Power |
| Bucksport Generation LLC | Natural gas | 187 | Hancock | Bucksport Generation LLC |
| Bingham Wind | Wind | 186 | Piscataquis | Onward Energy |
| Cross Town Energy Storage | Battery storage | 175 | Cumberland | Cross Town Energy Storage LLC |
| Great Lakes Hydro America - ME | Hydro | 148 | Penobscot | Great Lakes Hydro America LLC |
| Oakfield Wind Project | Wind | 148 | Aroostook | Onward Energy |
| Kibby Wind Facility | Wind | 132 | Franklin | Helix Maine Wind Development, LLC |
Maine power plants by fuel
Newest plants in Maine
Ordered by the month the first generator began operating.
USS Weld Solar LLCSolar · 1 MW · Franklin County · December 2025Cross Town Energy StorageBattery storage · 175 MW · Cumberland County · November 2025Mousam River SolarSolar · 20 MW · York County · November 2025REDP - TrentonSolar · 5 MW · Hancock County · November 2025Lisbon CSG LLCSolar · 1 MW · Androscoggin County · October 2025Boundary Line Solar, LLCSolar · 1 MW · Cumberland County · October 2025
Counties with the most capacity
Cumberland County22 plants · 1,736 MWPenobscot County35 plants · 999 MWOxford County20 plants · 590 MWSomerset County37 plants · 498 MWHancock County12 plants · 388 MWFranklin County14 plants · 336 MWAroostook County26 plants · 292 MWWashington County7 plants · 282 MWPiscataquis County3 plants · 211 MW
Largest operators in Maine
FPL Energy Wyman LLC1 plant · 863 MW
Westbrook Energy Center1 plant · 564 MW
Casco Bay Energy Co LLC1 plant · 550 MW
Onward Energy3 plants · 385 MW
Brookfield White Pine Hydro LLC16 plants · 322 MW
Grouped by EIA operator name. Parent companies are not merged.
All 270 plants in Maine, by county
Androscoggin County 23 plants
- ReEnergy Livermore Falls Wood biomass · 39.6 MW
- Charles E Monty Hydro · 28.4 MW
- Walden Solar Maine V Solar · 20 MW
- Worumbo Hydro Station Hydro · 19.4 MW
- Gulf Island Hydro · 19.2 MW
- International Paper Livermore Hydro Hydro · 9.2 MW
- Deer Rips Hydro · 6.5 MW
- MMWAC Resource Recovery Facility Municipal solid waste · 5 MW
- Cenergy - Pulk Solar · 5 MW
- MD - EDFR - Phase II - Lewiston Solar · 5 MW
- Lewiston Junction Road Solar Solar · 4.9 MW
- Dynamic - Leeds Solar (CSG) Solar · 4.9 MW
- Sabattus SB01 Solar · 4.9 MW
- Merrill Road Solar Solar · 4.6 MW
- Dynamic - Wales Leeds Junction Road (CSG) Solar · 4.5 MW
- Livermore Falls CSG Solar · 3.3 MW
- Lisbon Street Solar Solar · 2 MW
- Crowley Solar, LLC Solar · 2 MW
- Barker Lower Hydro · 1.5 MW
- Mechanic Falls Hydro · 1.4 MW
- Upper Barker Hydro · 1 MW
- Lisbon CSG LLC Solar · 1 MW
- Turner CSG LLC Solar · 1 MW
Aroostook County 26 plants
- Oakfield Wind Project Wind · 148 MW
- Mars Hill Wind Farm Project Wind · 42 MW
- Twin Rivers Paper Co LLC Other fuels · 22 MW
- AES Daigle Solar, LLC Solar · 5 MW
- Fort Fairfield Solar · 5 MW
- BNRG Masardis (CSG) Solar · 5 MW
- Caribou Solar Solar · 5 MW
- Caribou Solar · 4.1 MW
- Loring Solar · 4.1 MW
- AES Pelletier Solar, LLC Solar · 4 MW
- Madawaska Solar Solar · 4 MW
- Limestone - (ME) Solar · 4 MW
- Limestone CSG 1 LLC Solar · 3.8 MW
- Easton CSG 1 LLC Solar · 3.3 MW
- Valley Sun Solar Solar · 3.1 MW
- Mechanic Street (CSG) Solar · 3 MW
- Missile Street (CSG) Solar · 3 MW
- Sheridan Road Solar Farm Solar · 3 MW
- Limestone CSG 2 LLC Solar · 2.9 MW
- ME Fort Fairfield Solar Plant Solar · 2.8 MW
- Mars Hill Solar · 2.6 MW
- ME Novel Lighthouse - Huggard Ave Solar Solar · 2.5 MW
- French Road Solar Solar · 2.5 MW
- Skyway Avenue Solar Farm Solar · 2.5 MW
- ME - Novel (Lighthouse Ph I) Mars Hill Solar · 2.5 MW
- Houlton Road Solar Farm (CSG) Solar · 2 MW
Cumberland County 22 plants
- William F Wyman Hybrid Oil · 862.7 MW
- Westbrook Energy Center Power Plant Natural gas · 563.9 MW
- Cross Town Energy Storage Battery storage · 175 MW
- Cape Gas Turbine Oil · 35 MW
- Brunswick Hydro Hydro · 19.6 MW
- Regional Waste Systems Municipal solid waste · 13.3 MW
- Hiram Hydro · 10.5 MW
- S D Warren Westbrook Hydro · 7.2 MW
- Gorham Solar 1 (CSG) Solar · 5 MW
- Baldwin (ME) Solar · 5 MW
- Standish Solar · 5 MW
- BWC Beech Ridge Brook, LLC Solar · 5 MW
- North Bridgton Solar · 5 MW
- Shaker Solar · 5 MW
- SCS Harpswell 012903 Brunswick, LLC Solar · 4.9 MW
- Dynamic - Gray Solar Solar · 4.9 MW
- North Gorham Hydro · 2.2 MW
- Naples Solar · 2 MW
- MEVS Waterhouse Solar · 2 MW
- Roosevelt Trail Solar · 1 MW
- Water Line Solar, LLC Solar · 1 MW
- Boundary Line Solar, LLC Solar · 1 MW
Franklin County 14 plants
- Kibby Wind Facility Wind · 132 MW
- Farmington Solar Solar · 77 MW
- ReEnergy Stratton LLC Wood biomass · 47 MW
- Saddleback Ridge Wind Farm Wind · 34.2 MW
- Otis Hydro Hydro · 10.2 MW
- International Paper Riley Hydro Hydro · 6.6 MW
- ME Novel Lighthouse - Carrabassett Solar · 5 MW
- Arctaris Saddleback Solar Solar · 4.9 MW
- Farmington Solar · 4.9 MW
- 15 Glen Harris RD Solar · 3.6 MW
- Chester A, LLC Solar · 3.3 MW
- International Paper Jay Hydro Hydro · 3.1 MW
- Pleasant Street Solar · 3 MW
- USS Weld Solar LLC Solar · 1 MW
Hancock County 12 plants
- Bucksport Generation LLC Natural gas · 186.8 MW
- Weaver Wind Wind · 72.6 MW
- Hancock Wind Plant Wind · 51 MW
- Bull Hill Wind Project Wind · 34.5 MW
- Ellsworth Hydro Station Hydro · 8.9 MW
- BD Solar Hancock LLC Solar · 7 MW
- BD Solar Ellsworth LLC Solar · 7 MW
- Penobscot Narrows Solar I Solar · 5 MW
- REDP - Trenton Solar · 5 MW
- Caterpillar Hill Solar · 4.9 MW
- BRNG Nicolin (CSG) Solar · 3.3 MW
- Mariaville Road Elsworth Solar, LLC Solar · 1.6 MW
Kennebec County 33 plants
- Hydro Kennebec Project Hydro · 15.4 MW
- Augusta PV - BD Solar Augusta LLC Solar · 7.2 MW
- Lockwood Hydroelectric Facility Hydro · 7.2 MW
- Winslow PV - BD Solar 2 LLC Solar · 7 MW
- Monmouth Solar · 5 MW
- Water Street Solar Solar · 5 MW
- Cenergy - Waterville (CSG) Solar · 5 MW
- Town House Solar · 5 MW
- Oakland Solar · 5 MW
- Farmingdale FA01 Solar · 4.9 MW
- Broadhead Solar · 4.9 MW
- Webb Road Solar Solar · 4.6 MW
- Treasure Lane Solar 1 Solar · 4.5 MW
- BWC Unity Pond LLC Solar · 4.5 MW
- Route 3 China Solar, LLC Solar · 4.5 MW
- Benton Falls Associates Hydro · 4.2 MW
- Winslow PV, LLC Solar · 4.1 MW
- Gardiner A, LLC Solar · 4 MW
- RE Gardiner Solar, LLC Solar · 3.9 MW
- Church Hill Road Augusta Solar, LLC Solar · 3.8 MW
- Market Street Gardiner Solar, LLC Solar · 3.3 MW
- Vassalboro PV, LLC Solar · 3.3 MW
- Messalonskee 2 (Oakland) Hydro · 2.8 MW
- Augusta Solar · 2.5 MW
- MEVS DOT 109 Solar · 2.2 MW
- RE Sidney Solar, LLC Solar · 2.1 MW
- Maxcy's Mill Solar, LLC Solar · 2 MW
- Messalonskee 5 Hydro · 1.8 MW
- Messalonskee 3 Hydro · 1.6 MW
- Solar Mule, LLC Solar · 1.5 MW
- Sidney Solar · 1.5 MW
- Gardiner Hydro · 1 MW
- ME Augusta 13 York Farm Rd Solar Solar · 1 MW
Knox County 5 plants
- Fox Island Wind LLC Wind · 4.5 MW
- Washington WS01 Solar · 4 MW
- BWC Maces Pond LLC Solar · 3.5 MW
- Samoset Solar Solar · 2 MW
- Waldoboro Solar, LLC Solar · 2 MW
Lincoln County 3 plants
- Cenergy - Wiscasset (CSG) Solar · 5 MW
- ME - EDFR - Phase I - Bristol Solar · 5 MW
- North Nobleboro Road, LLC Solar · 2.5 MW
Oxford County 20 plants
- Rumford Power LLC Natural gas · 274.5 MW
- Rumford Cogeneration Wood biomass · 102.6 MW
- Record Hill Wind Wind · 50.6 MW
- Rumford Falls Hydro Facility Hydro · 48.2 MW
- Canton Mountain Wind Wind · 22.8 MW
- Spruce Mountain WInd Wind · 20 MW
- RoxWind Wind · 15.3 MW
- Oxford PV - BD Solar Oxford LLC Solar · 9.2 MW
- Aziscohos Hydroelectric Project Hydro · 6.7 MW
- Ryans Ranch Solar · 5 MW
- South Paris PV, LLC Solar · 5 MW
- Rumford ESS Battery storage · 4.9 MW
- Fryeburg Solar · 4.9 MW
- Mainely Solar (Wyman Hill Solar LLC) Solar · 4 MW
- ISM Solar Shepherd Acres Solar · 4 MW
- Nutting Ridge Solar, LLC Solar · 4 MW
- Canton GLC Solar, LLC Solar · 3 MW
- NRS Bethel Solar, LLC Solar · 3 MW
- Oxford Solar, LLC Solar · 1.6 MW
- SP-339 Mechanic Falls Solar · 1 MW
Penobscot County 35 plants
- Maine Independence Station Natural gas · 550.2 MW
- Great Lakes Hydro America - ME Hydro · 148.1 MW
- Rollins Wind Project Wind · 60 MW
- Passadumkeag Windpark LLC Wind · 42.9 MW
- NE Renewable Power West Enfield Wood biomass · 27.5 MW
- Eagle Point Energy Center Municipal solid waste · 25.3 MW
- Silver Maple Wind · 20 MW
- West Enfield Hydro Hydro · 13 MW
- Pisgah Mountain Wind Wind · 9.1 MW
- Milford Hydro Station Hydro · 7.8 MW
- Dynamic Corinth (CSG) Solar · 5 MW
- Our Katahdin Solar · 5 MW
- Brewer (CSG) Solar · 5 MW
- BWC Jimmie Pond Solar · 5 MW
- Hermon Solar, LLC Solar · 5 MW
- Brewer PV, LLC Solar · 5 MW
- Lincoln ME 1 Solar · 4.9 MW
- Dynamic - Enfield Hammett Road CSG Solar · 4.9 MW
- Dynamic - Glenburn Broadway One (CSG) Solar · 4.9 MW
- SP-231 Clifton Solar · 4.9 MW
- Broadway Solar (CSG) Solar · 4.6 MW
- Corkwood Solar (CSG) Solar · 4.6 MW
- Medway Hydro Hydro · 4 MW
- Dynamic - Exeter Solar CSG Solar · 4 MW
- Gateway Solar, LLC Solar · 4 MW
- Orono B Hydro · 3.9 MW
- Eastern Maine Medical Center Natural gas · 3.8 MW
- ME Novel Lighthouse - Penobscot CSG Solar · 3 MW
- Orono Hydro Station Hydro · 2.7 MW
- Stillwater B Hydro · 2.4 MW
- ME CDG 004 Solar · 2 MW
- ME CDG 005 Solar · 2 MW
- Union Street Solar, LLC Solar · 2 MW
- Stillwater Hydro Station Hydro · 1.8 MW
- Pumpkin Hill Hydro · 1 MW
Piscataquis County 3 plants
- Bingham Wind Wind · 186 MW
- Milo PV - BD Solar 1 LLC Solar · 20 MW
- Milo CSG Solar · 4.5 MW
Sagadahoc County 4 plants
- Pejepscot Hydroelectric Project Hydro · 13.5 MW
- ME-EDFR-Phase I-Woolwich Solar · 5 MW
- Augusta Road Bowdoin Solar, LLC Solar · 3.8 MW
- Richmond Hill Solar · 1.8 MW
Somerset County 37 plants
- Somerset Plant Wood biomass · 107.1 MW
- Harris Hydro Hydro · 76.4 MW
- Wyman Hydro Hydro · 72 MW
- Moscow Wind · 58.8 MW
- Anson Abenaki Hydros Hydro · 29 MW
- Williams Hydro Hydro · 13 MW
- Weston Hydro Hydro · 12 MW
- Pittsfield Solar LLC Solar · 9.9 MW
- Shawmut Hydro · 8.8 MW
- Athens Energy Wood biomass · 8.5 MW
- Fairfield PV - BD Solar Fairfield LLC Solar · 5 MW
- Palmyra PV - BD Solar Palmyra LLC Solar · 5 MW
- River Road Solar · 5 MW
- Dynamic Madison (CSG) Solar · 5 MW
- Athens AT01 Solar · 5 MW
- ME-EDFR-Phase I-Embden Solar · 5 MW
- Bates College Skowhegan Solar · 5 MW
- MEVS Clark LLC Solar · 5 MW
- Somerset Solar, LLC (ME) Solar · 5 MW
- Madison ESS Battery storage · 4.9 MW
- Harmony Solar (ME) Solar · 4.9 MW
- Pittsfield Solar (N. Main St) Solar · 4.9 MW
- Dynamic - Norridgewock Martin Stream (CSG) Solar · 4.9 MW
- Barefoot Solar Solar · 4.3 MW
- IOS - MEW Phase 1 Solar · 4.1 MW
- Hartland Solar Solar · 4 MW
- Dairy Farm Solar · 4 MW
- Brassua Hydroelectric Project Hydro · 3.6 MW
- Waste Management Crossroads LFGTE Landfill gas · 3.2 MW
- ME Novel Lighthouse - Front St. Solar CS Solar · 3.2 MW
- Athens Ridge Solar · 2.9 MW
- BNRG Norridgewock (CSG) Solar · 2 MW
- BNRG North Anson (CSG) Solar · 2 MW
- Madison BTM Battery storage · 1.5 MW
- Pittsfield Hydro Hydro · 1.1 MW
- Cenergy - Richards (CSG) Solar · 1 MW
- Cenergy - Kiger Solar · 1 MW
Waldo County 9 plants
- Three Corners Solar Solar · 110 MW
- Georges River Energy Wood biomass · 10 MW
- Unity Solar Solar · 5 MW
- ME - EDF - Phase II - Belfast Solar · 5 MW
- Perkins Road Belfast Solar, LLC Solar · 4.8 MW
- Beaver Ridge Wind Wind · 4.5 MW
- Searsmont Road Lincolnville Solar, LLC Solar · 4 MW
- Belfast PV, LLC Solar · 2.5 MW
- Robbins Lumber Oil · 2 MW
Washington County 7 plants
- Downeast Wind Wind · 126 MW
- Woodland Pulp, LLC Wood biomass · 61.7 MW
- Stetson Wind I Wind · 57 MW
- Stetson Wind II Wind · 25.5 MW
- Dublin Street LLC Solar · 4.9 MW
- Wymans Deblois Solar · 4.9 MW
- Marshfield Solar, LLC Solar · 2 MW
York County 17 plants
- Sanford Solar Solar · 49.4 MW
- Mousam River Solar Solar · 20 MW
- Skelton Hydro · 16.8 MW
- Bonny Eagle Hydro · 15.2 MW
- West Buxton Hydro · 7.7 MW
- Cataract Hydro Hydro · 6.6 MW
- Quarry Solar · 5 MW
- Sanford CGA Solar · 5 MW
- Sanford -NY Solar · 4.9 MW
- Waterboro Solar · 4.9 MW
- Wells (ME) Solar · 4.8 MW
- Knights Pond Solar, LLC Solar · 3.9 MW
- Lebanon CSG LLC Solar · 3.8 MW
- Acton Solar · 3.5 MW
- Berwick Hubbard Solar 1 Solar · 3.5 MW
- Lebanon West Lebanon Solar 1 Solar · 2 MW
- Salmon Falls Hydro · 1.2 MW
Questions about power plants in Maine
How many power plants are in Maine?
EIA-860M for August 2026 lists 270 operating power projects in Maine, with 6,021 MW of nameplate capacity including batteries.
What is the largest power plant in Maine?
William F Wyman Hybrid in Cumberland County, with 862.7 MW of nameplate capacity. The next largest is Westbrook Energy Center Power Plant, with 563.9 MW.
How much of Maine's capacity is other?
1,344 MW, about 22% of nameplate capacity. 16 projects have other as their primary fuel.
Source: EIA-860M August 2026, published 2026-09-24. Page updated 2026-10-04. Data sources