Where is Stony Brook Cogen Plant?

In Suffolk County, New York (NY). 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 Stony Brook Cogen Plant?

47 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.

Who owns Stony Brook Cogen Plant?

EIA-860M names Nissequoque Cogen Partners 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 Stony Brook Cogen Plant LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Nissequoque Cogen Partners 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 "Stony Brook Cogen Plant LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Stony Brook Cogen Plant still running?

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

Stony Brook Cogen Plant

Stony Brook Cogen Plant is a 47 MW natural gas power plant in Suffolk County, New York, operated by Nissequoque Cogen Partners. EIA-860M lists 1 generating unit here, inside NYISO. Its unit entered service in 1995.

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: 47 MW; 44.5 MW net summer
Generating units: 1
In service: 1995
EIA plant ID: 54149

Where it is

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County: Suffolk County, New York
Coordinates: 40.9168, -73.1291
Balancing authority: NYIS
Sector: IPP CHP

Units, technology and status

Operator of record: Nissequoque Cogen Partners
Primary energy source: Natural gas
Technologies: Natural Gas Fired Combustion Turbine
Status: Operating

Every plant Nissequoque Cogen Partners reports to EIA →

Stony Brook Cogen Plant: FAQ

Where is Stony Brook Cogen Plant?: In Suffolk County, New York (NY). 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 Stony Brook Cogen Plant?: 47 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Stony Brook Cogen Plant?: EIA-860M names Nissequoque Cogen Partners 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 Stony Brook Cogen Plant LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Nissequoque Cogen Partners 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 "Stony Brook Cogen Plant LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Stony Brook Cogen Plant still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.