East Setauket Storage II
248 MW storage in Suffolk, NY · In queue since September 2024 · Proposed COD December 2029
248 MW
Capacity
1
Components
Battery
1y 8m
In Queue
—
IA Status
COD target: 2029
Total Duration
5y 3m
Interconnection request submitted to ISO/RTO
NYISO transitioned to a Transitional Cluster Study (TCS) format in 2024.
Typical: >42 months (historical); ~24 months target
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2029-12-01
East Setauket Storage II is a proposed 248 MW battery storage project located in Suffolk County, New York. The project, developed by East Setauket Energy Storage, LLC, is interconnected to the Long Island Power Authority (LIPA) grid. It is listed in the New York Independent System Operator (NYISO) interconnection queue as entry NYISO-C24-183, with a queue entry date of September 17, 2024, and a proposed commercial operation date of December 1, 2029.
The project consists of 248 MW of battery storage capacity. It is currently listed as active in the NYISO interconnection queue. The point of interconnection is the Holbrook - North Shore Beach 138kV line. The project has been mentioned in recent news coverage related to regulatory matters.
Generated from interconnection queue and public data sources
State
NY
County
Suffolk
Grid Region
NYISO (New York)
Market
ISO/RTO Member
Developer
East Setauket Energy Storage, LLC
Utility
LIPA
Entity
NYISO
Service Type
—
Point of Interconnection
Holbrook - North Shore Beach 138kV
Data Source
LBNL + Live
- ISO / RTO
- NYISO
- Trading Hub
- ZONE K
- Hub Confidence
- HIGH
- Nearest Node (Estimated)
- NORTH
This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.
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