Antelope Energy Storage Center
500 MW storage in Lewis, NY · In queue since September 2024 · Proposed COD December 2029
500 MW
Capacity
1
Components
Battery
1y 8m
In Queue
—
IA Status
COD target: 2029
Total Duration
5y 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: 2029-12-01
The Antelope Energy Storage Center is a proposed 500 MW battery storage project located in Lewis County, New York. The developer is Hydrostor USA Holdings, Inc, a subsidiary of Hydrostor Inc. The project is interconnected to the NYISO grid at the Adirondack 345kV substation, and it is listed in the NYISO interconnection queue as entry C24-152, filed on September 11, 2024. The proposed commercial operation date is December 1, 2029.
The Antelope Energy Storage Center project has been the subject of recent news coverage.
Generated from interconnection queue and public data sources
State
NY
County
Lewis
Grid Region
NYISO (New York)
Market
ISO/RTO Member
Developer
Hydrostor USA Holdings, Inc , a subsidiary of Hydrostor Inc
Utility
NYPA
Entity
NYISO
Service Type
—
Point of Interconnection
Adirondack 345kV substation
Data Source
LBNL
- ISO / RTO
- NYISO
- Trading Hub
- ZONE D
- 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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