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5 MW BESS operating in Suffolk, NY
5 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2019
Operating Since
Coordinates
41.0399, -71.9644
County
Suffolk, NY
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Montauk Energy Storage Center, LLC | — | — |
| Owner(s) | Montauk Energy Storage Center, LLC | — | — |
| Status | Operating | — | — |
The Montauk Energy Storage Center is a 5 MW battery energy storage system located in Suffolk County, New York. The facility began operating in 2019 and is owned and operated by Montauk Energy Storage Center, LLC. It is connected to the New York Independent System Operator (NYISO) balancing authority and is within the Northeast Power Coordinating Council (NPCC) NERC region. The plant ranks 47th out of 65 power plants in New York state and 984th out of 1205 nationally.
The energy storage system utilizes lithium-ion batteries (LIB) and has a total storage capacity of 40 MWh, providing a duration of 8 hours at its full 5 MW output. The primary fuel listed for the facility is MWH, indicating that it draws power from the grid to charge its batteries. The plant consists of a single generator.
Generated from EIA, GEM, and public data sources
ISO/RTO
NYISO
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
New York Independent System Operator (NYIS)
Grid Voltage
4.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
−46 MWh
Net Charging
-854 MWh
Annual Net Energy
-1.9%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
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2019
$2,973/kW
Est. Construction Cost
Total estimated cost: $14.9M
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Market Position
ISO/RTO Market
NYISO
LMP Node
—
Pricing Hub
MILLWD
Node Source
Plant coordinates only
1 buyer • 28 active contracts
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