South Hampton
South Hampton is a 12 MW oil-fired power plant in Suffolk County, New York, operated by National Grid Generation LLC. EIA-860M lists 1 generating unit here, inside NYISO. Its unit entered service in 1963.
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
- 11.5 MW
- 8.5 MW net summer
- Generating units
- 1
- In service
- 1963
- EIA plant ID
- 2519
Where it is
Loading map…
- County
- Suffolk County, New York
- Coordinates
- 40.9, -72.382
- 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
South Hampton: FAQ
- Where is South 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 South Hampton?
- 12 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns South 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 South 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 "South Hampton LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is South Hampton still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.