Arsenal Data Site 500
233 MW generation in St Lawrence, NY · In queue since March 2025
233 MW
Capacity
0
Components
1y 2m
In Queue
—
IA Status
Total Duration
1y 2m
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)
Commercial operation date not yet determined
The Arsenal Data Site 500 project is a proposed 233 MW generation project located in St. Lawrence County, New York. The project, developed by Arconic Corporation, is interconnected to the NYISO grid at the Haverstock to Adirondak 345kV line HA-1. It is listed in the NYISO interconnection queue as entry NYISO-1729, with a queue entry date of March 7, 2025.
The project's technology is listed as "Other" with a detail of "L". The proposed project is currently listed as active in the interconnection queue. The interconnecting utility is the New York Power Authority (NYPA).
Generated from interconnection queue and public data sources
State
NY
County
St Lawrence
Grid Region
NYISO (New York)
Market
ISO/RTO Member
Developer
Arconic Corporation
Utility
NYPA
Entity
NYISO
Service Type
—
Point of Interconnection
Haverstock to Adirondak 345kV line HA-1
Data Source
Live · NYISO
- ISO / RTO
- NYISO
- Trading Hub
- ZONE F
- 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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