Preliminary 2025 facility recordOperating

Westbrook, ME · EIA plant 50447

S D Warren Westbrook

S D Warren Westbrook is a biomass power facility in Westbrook, ME, with 70 MW of operating capacity.

Operating capacity70 MW16 operating generators
Proposed capacity0 MW0 proposed generators
UtilityRelevate Power Management LLCEIA-reported operator
Balancing authorityISNEISO New England Inc.

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Biomass63 MW
Hydro7 MW
ProposedNo proposed capacity reported
Reported technologiesConventional HydroelectricWood/Wood Waste Biomass

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