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Preliminary 2025 facility recordOperating

Winthrop, MA · EIA plant 10823

Deer Island Treatment Plant

Deer Island Treatment Plant is a oil & gas power facility in Winthrop, MA, with 73 MW of operating capacity.

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Operating capacity73 MW8 operating generators
Proposed capacity0 MW0 proposed generators
UtilityMassachusetts Wtr Rauth-Deer IEIA-reported operator
Balancing authorityISNEISO New England Inc.

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Oil & gas52 MW
Biomass18 MW
Hydro2 MW
Wind1 MW
Solar0 MW
ProposedNo proposed capacity reported
Reported technologiesConventional HydroelectricOnshore Wind TurbineOther Waste BiomassPetroleum LiquidsSolar Photovoltaic

Nearby in MA

Related facilities

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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