Somerset Plant

Somerset Plant is a 107 MW biomass power plant in Somerset County, Maine, operated by Sappi Fine Paper North America-Somerset. EIA-860M lists 2 generating units here, inside ISO New England. Its units entered service between 1976 and 1990.

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

Nameplate capacity
107.1 MW
99.8 MW net summer
Generating units
2
In service
1976–1990
EIA plant ID
50406

Where it is

Loading map…
County
Somerset County, Maine
Coordinates
44.7035, -69.6474
Balancing authority
ISNE
Sector
Industrial CHP

Units, technology and status

Operator of record
Sappi Fine Paper North America-Somerset
Primary energy source
Biomass
Technologies
Wood/Wood Waste Biomass
Status
Operating

Every plant Sappi Fine Paper North America-Somerset reports to EIA →

Somerset Plant: FAQ

Where is Somerset Plant?
In Somerset County, Maine (ME). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Somerset Plant?
107 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Somerset Plant?
EIA-860M names Sappi Fine Paper North America-Somerset as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Somerset Plant LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Sappi Fine Paper North America-Somerset here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Somerset Plant LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Somerset Plant still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.