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
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- 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.