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Preliminary 2025 facility recordOperating

Greenwich, CT · EIA plant 542

Cos Cob

Cos Cob is a oil & gas power facility in Greenwich, CT, with 115 MW of operating capacity.

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Operating capacity115 MW5 operating generators
Proposed capacity0 MW0 proposed generators
UtilityConnecticut Jet Power LLCEIA-reported operator
Balancing authorityISNEISO New England Inc.

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Oil & gas115 MW
ProposedNo proposed capacity reported
Reported technologiesPetroleum Liquids

Nearby in CT

Related facilities

CT · 2.3 miWaterside Power, LLC70 MW →CT · 3.1 miStamford Health10 MW →CT · 4.2 miStamford Health Tully Health Center2 MW →CT · 19.9 miFairfield University CHP Plant5 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