Southampton Power Station Battery Energy Storage System (BESS)
31.96 MW storage in Suffolk, NY · In queue since September 2024 · Proposed COD December 2027
31.96 MW
Capacity
1
Components
Battery
1y 8m
In Queue
—
IA Status
COD target: 2027
Total Duration
3y 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: 2027-12-01
The Southampton Power Station Battery Energy Storage System (BESS) is a proposed 31.96 MW battery storage project located in Suffolk County, New York. The project, developed by National Grid Generation LLC, is interconnected to the Long Island Power Authority (LIPA) grid at the Southampton 69kV point of interconnection.
The project is listed in the New York Independent System Operator (NYISO) interconnection queue as entry NYISO-C24-274, with a queue entry date of September 24, 2024, and a proposed commercial operation date of December 1, 2027.
Generated from interconnection queue and public data sources
State
NY
County
Suffolk
Grid Region
NYISO (New York)
Market
ISO/RTO Member
Developer
National Grid Generation LLC
Utility
LIPA
Entity
NYISO
Service Type
—
Point of Interconnection
Southampton 69kV
Data Source
LBNL
- ISO / RTO
- NYISO
- Trading Hub
- ZONE K
- Hub Confidence
- HIGH
- POI Substation
- Southampton Substation
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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