Battery storageOperatingNYISO

East Hampton Energy Storage Center

Battery storage project in Suffolk County, New York. 5 MW of nameplate capacity across 1 generator, operated by East Hampton Energy Storage Center, LLC.

Also known as EIA plant 62733

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South HamptonKearsarge SouthamptonGreenportSoutholdEast Hampton Energy S…10 km
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6 plants within 21 km, from EIA coordinates.

Key facts

Capacity
5 MWNameplate
Generators
1 operatingEIA-860M, August 2026
Operating since
August 2018First generator online
Operator
East Hampton Energy Storage Center, LLCEIA operator ID 62652
Grid
NYISOBalancing authority NYIS
Price nodes
None linkedNo verified ISO node
Location
Suffolk County, NY40.9618, −72.2099
EIA plant ID
62733EIA plant page

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

How much power East Hampton Energy Storage Center produces

Free · EIA-923

Net generation, 2025

−377 MWh

−377 MWh, final

Battery discharge, 2025

4.26 GWh

Charge 4.63 GWh

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2019 to 2025

−638.0–−81.0

MWh a year. Low 2022, high 2023

Annual net generation, MWh
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
2000Not reportedNot reported0 of 12
2001Not reportedNot reported0 of 12
2002Not reportedNot reported0 of 12
2003Not reportedNot reported0 of 12
2004Not reportedNot reported0 of 12
2005Not reportedNot reported0 of 12
2006Not reportedNot reported0 of 12
2007Not reportedNot reported0 of 12
2008Not reportedNot reported0 of 12
2009Not reportedNot reported0 of 12
2010Not reportedNot reported0 of 12
2011Not reportedNot reported0 of 12
2012Not reportedNot reported0 of 12
2013Not reportedNot reported0 of 12
2014Not reportedNot reported0 of 12
2015Not reportedNot reported0 of 12
2016Not reportedNot reported0 of 12
2017Not reportedNot reported0 of 12
2018Not reportedNot reported0 of 12
2019−477Not reported12 of 12
2020−293Not reported12 of 12
2021−314Not reported12 of 12
2022−638Not reported12 of 12
2023−81Not reported12 of 12
2024−281Not reported12 of 12
2025−377Not reported12 of 12
2026 (provisional, partial year)Not reportedNot reported0 of 7

* 2026 covers January to July and is provisional. Battery plants can report negative net generation, when charging uses more energy than they discharge.

Power prices and basis

Free account

No verified ISO price node is linked to this plant, or its price history could not load.

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. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
BEHBatteries5.0August 2018

Ownership and offtake

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Pro

Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists East Hampton Energy Storage Center, LLC as the operator, which is not always the owner.

Modeled data

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

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Questions about East Hampton Energy Storage Center

How much power does East Hampton Energy Storage Center produce?

East Hampton Energy Storage Center reported −377 MWh (−377 MWh) of net generation in 2025.

Where is East Hampton Energy Storage Center?

East Hampton Energy Storage Center is in Suffolk County, New York, at 40.9618, −72.2099. It is in the New York Independent System Operator balancing area (NYIS).

Who operates East Hampton Energy Storage Center?

EIA-860M for August 2026 lists East Hampton Energy Storage Center, LLC as the operator (EIA operator ID 62652). The operator is not always the owner.

When did East Hampton Energy Storage Center start operating?

Its first generator began operating in August 2018, according to EIA-860M.

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)

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