OilOperatingNYISO

South Hampton

Oil power plant in Suffolk County, New York. 11.5 MW of nameplate capacity across 1 generator, operated by National Grid Generation LLC.

Also known as EIA plant 2519

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Kearsarge SouthamptonEast HamptonEast Hampton Energy Storage CenterSterlington Greenworks LLCGreenportSoutholdSouth Hampton10 km
Open in the map
6 plants within 23 km, from EIA coordinates.

Key facts

Capacity
11.5 MWNameplate
Generators
1 operatingEIA-860M, August 2026
Operating since
March 1963First generator online
Operator
National Grid Generation LLCEIA operator ID 56505
Grid
NYISOBalancing authority NYIS
Price nodes
1 NYISO nodeResource nodes with prices
Location
Suffolk County, NY40.9000, −72.3820
EIA plant ID
2519EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power South Hampton produces

Free · EIA-923

Net generation, 2025

181 MWh

181 MWh, final

Capacity factor, 2025

0.2%

2024: 0.0%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

−0.0–2.1

GWh a year. Low 2023, high 2019

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
20001,656Not reported12 of 12
20012,939Not reported12 of 12
20022,040Not reported12 of 12
20031,903Not reported11 of 12
2004−13Not reported11 of 12
2005378Not reported12 of 12
2006397Not reported12 of 12
20072,625Not reported12 of 12
20086,393Not reported12 of 12
20091,994Not reported12 of 12
20102,7302.7%12 of 12
20111,7631.8%12 of 12
20124580.5%12 of 12
20131,7441.7%12 of 12
2014220.0%12 of 12
20156930.7%12 of 12
20161,6341.6%12 of 12
20179510.9%12 of 12
20181,4891.5%12 of 12
20192,1042.1%12 of 12
20201,2421.2%12 of 12
20215270.5%12 of 12
20222150.2%12 of 12
2023−1-0.0%12 of 12
2024420.0%12 of 12
20251810.2%12 of 12
2026 (provisional, partial year)Not reportedNot reported0 of 7

* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.

Power prices and basis

Free account · NYISO

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No EIA cooling-water record for this plant in 2024.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
1Petroleum Liquids11.5March 1963

Ownership and offtake

Pro
Pro

Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists National Grid Generation LLC as the operator, which is not always the owner.

Modeled data

Pro

Pro adds modeled values for this plant. Everything above stays free.

Modeled

Generation potential vs reported

Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.

Analyst and MCP

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Power plants near South Hampton

More plants operated by National Grid Generation LLC

Questions about South Hampton

How much power does South Hampton produce?

South Hampton reported 181 MWh (181 MWh) of net generation in 2025, a 0.2% capacity factor on 11.5 MW of nameplate capacity.

Where is South Hampton?

South Hampton is in Suffolk County, New York, at 40.9000, −72.3820. It is in the New York Independent System Operator balancing area (NYIS).

Who operates South Hampton?

EIA-860M for August 2026 lists National Grid Generation LLC as the operator (EIA operator ID 56505). The operator is not always the owner.

When did South Hampton start operating?

Its first generator began operating in March 1963, according to EIA-860M.

Does InfraMap have power prices for South Hampton?

Yes. InfraMap has NYISO day-ahead and real-time prices at 1 price node linked to South Hampton, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.

Sources

  • EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
  • EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
  • NYISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page