East Hampton

East Hampton is a 27 MW oil-fired power plant in Suffolk County, New York, operated by National Grid Generation LLC. EIA-860M lists 4 generating units here, inside NYISO. Its units entered service between 1962 and 1970.

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
27.3 MW
25.2 MW net summer
Generating units
4
In service
1962–1970
EIA plant ID
2512

Where it is

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County
Suffolk County, New York
Coordinates
40.9617, -72.2103
Balancing authority
NYIS
Sector
Electric Utility

Units, technology and status

Operator of record
National Grid Generation LLC
Primary energy source
Petroleum
Technologies
Petroleum Liquids
Status
Operating

Every plant National Grid Generation LLC reports to EIA →

East Hampton: FAQ

Where is East Hampton?
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 East Hampton?
27 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.
Who owns East Hampton?
EIA-860M names National Grid Generation LLC 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 East Hampton LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — National Grid Generation LLC 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 "East Hampton LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is East Hampton still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.