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Canceled or postponed, according to EIA. Last listed as operating or planned in August 2025. EIA-860M · Sep 2026
100 MW BESS in Nassau, NY
100 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
—
Operating Since
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Coordinates
40.6966, -73.3514
County
Nassau, NY
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Hecate Grid Clermont 1 LLC | — | — |
| Owner(s) | Hecate Grid Clermont 1 LLC | — | — |
| Status | Canceled or postponed | — | — |
Clermont is a 100 MW battery energy storage system located in Nassau County, New York. The plant, identified by the EIA plant code 64236, is owned and operated by Hecate Grid Clermont 1 LLC. It consists of a single generator utilizing batteries as its technology and MWH as its primary fuel source.
Clermont operates within the New York Independent System Operator (NYISO) balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. In terms of size, Clermont ranks as the 6th largest energy storage plant in New York and 486th nationally out of 514 plants.
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
69.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
No generation data available for this plant.
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2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $136.1M
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Market Position
ISO/RTO Market
NYISO
LMP Node
—
Pricing Hub
LONGIL
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-14
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