East Setauket Energy Storage
125 MW storage in Suffolk, NY · In queue since January 2020 · Proposed COD April 2027
125 MW
Capacity
1
Components
Battery
6y 4m
In Queue
—
IA Status
COD target: 2027
Total Duration
7y 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: 2027-04-01
The East Setauket Energy Storage project is a proposed 125 MW battery storage project located in Suffolk County, New York. The project, being developed by Savion, LLC, is interconnected to the Long Island Power Authority (LIPA) grid. It entered the New York Independent System Operator (NYISO) interconnection queue as queue ID NYISO-971 on January 10, 2020, with a proposed commercial operation date of April 1, 2027.
The project consists of 125 MW of battery storage capacity. The East Setauket Energy Storage project is currently listed as active in the NYISO interconnection queue and has been the subject of recent news coverage.
Generated from interconnection queue and public data sources
State
NY
County
Suffolk
Grid Region
NYISO (New York)
Market
ISO/RTO Member
Developer
Savion, LLC
Utility
LIPA
Entity
NYISO
Service Type
—
Point of Interconnection
Holbrook - Miller Place 138kV
Data Source
LBNL
- ISO / RTO
- NYISO
- Trading Hub
- ZONE K
- Hub Confidence
- MEDIUM
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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