COSW Barrett
1,310 MW generation in Suffolk, NY · In queue since August 2024 · Proposed COD December 2032
1,310 MW
Capacity
1
Components
Offshore Wind
1y 9m
In Queue
—
IA Status
COD target: 2032
Total Duration
8y 4m
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: 2032-12-01
The COSW Barrett project is a proposed 1310 MW offshore wind generation facility located in Suffolk County, New York. The project, developed by Community Offshore Wind, LLC, is currently active in the NYISO interconnection queue as project number NYISO-C24-017. It entered the queue on August 1, 2024, with a proposed commercial operation date of December 1, 2032. The point of interconnection is the Barrett 345kV substation.
The project is interconnected via Transco and consists entirely of offshore wind generation. Recent news coverage has discussed the development project.
Generated from interconnection queue and public data sources
State
NY
County
Suffolk
Grid Region
NYISO (New York)
Market
ISO/RTO Member
Developer
Community Offshore Wind, LLC
Utility
Transco
Entity
NYISO
Service Type
—
Point of Interconnection
Barrett 345kV
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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