USUS Grid ExplorerInfrastructure intelligence
Preliminary 2025 facility recordOperating

West Wareham, MA · EIA plant 50290

SEMASS Resource Recovery

SEMASS Resource Recovery is a biomass power facility in West Wareham, MA, with 99 MW of operating capacity.

Open on mapView MA profileOpen EIA source
Operating capacity99 MW2 operating generators
Proposed capacity0 MW0 proposed generators
UtilitySEMASS PartnershipEIA-reported operator
Balancing authorityISNEISO New England Inc.

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Biomass99 MW
ProposedNo proposed capacity reported
Reported technologiesMunicipal Solid Waste

Nearby in MA

Related facilities

MA · 1.8 miOld Middleboro Road Solar10 MW →MA · 2.3 miAcushnet AD Makepeace4 MW →MA · 2.3 miSyncarpha Freetown4 MW →MA · 2.4 miSolar Carver 1 Hybrid4 MW →

Source quality

Preliminary facility data

This page uses the EIA-860 2025 Early Release. EIA identifies the release as preliminary, so it should not be used for official state or national aggregation. Capacity is nameplate capacity, not real-time output or annual generation.

Read methodologyEIA-860 source