How many biomass power plants are in Maine?

15, with 583 MW of nameplate capacity between them, spread over 8 counties. That is the EIA-860M operating count for 2026-07.

Is there a map of Maine biomass power plants?

Yes — the map above. Each dot is one biomass power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest biomass power plant in Maine?

Somerset Plant, at 107 MW. The table is sorted largest first, so the rest follow it.

Is there a biomass power plant near me in Maine?

The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.

Which grid operator runs Maine's biomass power plants?

Most of them sit inside ISO New England, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.

How current is this, and what is left out?

EIA-860M for 2026-07. Wood and wood waste, landfill gas, municipal solid waste and other waste biomass. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.

Biomass Power Plants in Maine

Every operating biomass power plant in Maine on EIA-860M for 2026-07: 15 plants, 44 generating units and 583 MW of nameplate capacity across 8 counties, most of it inside ISO New England.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 15; 44 generating units
Nameplate capacity: 583 MW
Counties: 8
Grid operator: ISO New England; covers most of these plants

Map of biomass power plants in Maine

Every one of the 15 plants is drawn at the coordinate EIA files for it.

Loading map…

Biomass · 15

List of biomass power plants in Maine

Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.

biomass power plants in Maine

Somerset PlantWood/Wood Waste Biomass	Sappi Fine Paper North America-Somerset	Somerset	107.1	2	1976	Operating
Rumford CogenerationWood/Wood Waste Biomass	ND Paper, Inc.	Oxford	102.6	1	1990	Operating
S D Warren Westbrook2 technologies	Relevate Power Management LLC	Cumberland	69.7	16	1903	Operating
Woodland Pulp, LLC2 technologies	Woodland Pulp LLC	Washington	68.3	12	1906	Operating
ReEnergy Stratton LLCWood/Wood Waste Biomass	ReEnergy Stratton LLC	Franklin	47	1	1989	Operating
ReEnergy Livermore FallsWood/Wood Waste Biomass	ReEnergy Livermore Falls	Androscoggin	39.6	1	1992	Operating
Red Shield Envir Old Town FacilityWood/Wood Waste Biomass	ND Paper, Inc.	Penobscot	28.5	2	1965	Out of service and NOT expected to return to service in next calendar year
NE Renewable Power JonesboroWood/Wood Waste Biomass	Stored Solar J&WE	Washington	27.5	1	1987	Standby/Backup
NE Renewable Power West EnfieldWood/Wood Waste Biomass	Stored Solar J&WE	Penobscot	27.5	1	1987	Operating
Eagle Point Energy CenterMunicipal Solid Waste	Eagle Point Energy Center, LLC	Penobscot	25.3	1	1987	Operating
Regional Waste SystemsMunicipal Solid Waste	Ecomaine	Cumberland	13.3	1	1988	Operating
Georges River EnergyWood/Wood Waste Biomass	Robbins Lumber Inc	Waldo	10	1	2018	Operating
Athens EnergyWood/Wood Waste Biomass	Athens Energy, LLC	Somerset	8.5	1	2016	Operating
MMWAC Resource Recovery FacilityMunicipal Solid Waste	Maine Waste to Energy	Androscoggin	5	1	1992	Operating
Waste Management Crossroads LFGTELandfill Gas	WM Renewable Energy LLC	Somerset	3.2	2	2009	Operating

Largest biomass power plants in Maine

1Somerset PlantSomerset County, Maine107.1 MW
2Rumford CogenerationOxford County, Maine102.6 MW
3S D Warren WestbrookCumberland County, Maine69.7 MW
4Woodland Pulp, LLCWashington County, Maine68.3 MW
5ReEnergy Stratton LLCFranklin County, Maine47 MW
6ReEnergy Livermore FallsAndroscoggin County, Maine39.6 MW
7Red Shield Envir Old Town FacilityPenobscot County, Maine28.5 MW
8NE Renewable Power JonesboroWashington County, Maine27.5 MW
9NE Renewable Power West EnfieldPenobscot County, Maine27.5 MW
10Eagle Point Energy CenterPenobscot County, Maine25.3 MW

Biomass power plants by county in Maine

The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.

County	Plants	Nameplate MW
Somerset	3	118.8
Oxford	1	102.6
Washington	2	95.8
Cumberland	2	83
Penobscot	3	81.3
Franklin	1	47
Androscoggin	2	44.6
Waldo	1	10

Biomass Power Plants in Maine: FAQ

How many biomass power plants are in Maine?: 15, with 583 MW of nameplate capacity between them, spread over 8 counties. That is the EIA-860M operating count for 2026-07.
Is there a map of Maine biomass power plants?: Yes — the map above. Each dot is one biomass power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest biomass power plant in Maine?: Somerset Plant, at 107 MW. The table is sorted largest first, so the rest follow it.
Is there a biomass power plant near me in Maine?: The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
Which grid operator runs Maine's biomass power plants?: Most of them sit inside ISO New England, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.
How current is this, and what is left out?: EIA-860M for 2026-07. Wood and wood waste, landfill gas, municipal solid waste and other waste biomass. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.