Where is SEMASS Resource Recovery?

In Plymouth County, Massachusetts (MA). 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 SEMASS Resource Recovery?

99 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.

Who owns SEMASS Resource Recovery?

EIA-860M names SEMASS Partnership 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 SEMASS Resource Recovery LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — SEMASS Partnership 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 "SEMASS Resource Recovery LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is SEMASS Resource Recovery still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

SEMASS Resource Recovery

SEMASS Resource Recovery is a 99 MW biomass power plant in Plymouth County, Massachusetts, operated by SEMASS Partnership. EIA-860M lists 2 generating units here, inside ISO New England. Its units entered service between 1988 and 1993.

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: 98.5 MW; 80 MW net summer
Generating units: 2
In service: 1988–1993
EIA plant ID: 50290

Where it is

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County: Plymouth County, Massachusetts
Coordinates: 41.8022, -70.7875
Balancing authority: ISNE
Sector: Commercial Non-CHP

Units, technology and status

Operator of record: SEMASS Partnership
Primary energy source: Biomass
Technologies: Municipal Solid Waste
Status: Operating

Every plant SEMASS Partnership reports to EIA →

SEMASS Resource Recovery: FAQ

Where is SEMASS Resource Recovery?: In Plymouth County, Massachusetts (MA). 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 SEMASS Resource Recovery?: 99 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns SEMASS Resource Recovery?: EIA-860M names SEMASS Partnership 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 SEMASS Resource Recovery LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — SEMASS Partnership 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 "SEMASS Resource Recovery LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is SEMASS Resource Recovery still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.