Sweetwaters Energy Center
125 MW storage in Suffolk, NY · In queue since August 2024 · Proposed COD May 2028
125 MW
Capacity
1
Components
Battery
1y 9m
In Queue
—
IA Status
COD target: 2028
Total Duration
3y 9m
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: 2028-05-01
Sweetwaters Energy Center is a proposed 125 MW battery storage project located in Suffolk County, New York. The project, developed by Sweetwaters Energy Center LLC, is interconnected to the Long Island Power Authority (LIPA) via the Kings Substation at 138kV open bay. It is listed in the New York Independent System Operator (NYISO) interconnection queue as project number NYISO-C24-071, with an entry date of August 1, 2024, and a proposed commercial operation date of May 1, 2028.
The project is currently listed as active in the interconnection queue. Recent news coverage has discussed the development of the Sweetwaters Energy Center.
Generated from interconnection queue and public data sources
State
NY
County
Suffolk
Grid Region
NYISO (New York)
Market
ISO/RTO Member
Developer
Sweetwaters Energy Center LLC
Utility
LIPA
Entity
NYISO
Service Type
—
Point of Interconnection
Kings Substation at 138kV open bay
Data Source
LBNL
- ISO / RTO
- NYISO
- Trading Hub
- ZONE K
- Hub Confidence
- HIGH
- POI Substation
- 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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