Jefferson Energy Storage
100 MW storage in Lewis, NY · In queue since September 2024 · Proposed COD July 2027
100 MW
Capacity
1
Components
Battery
1y 8m
In Queue
—
IA Status
COD target: 2027
Total Duration
2y 10m
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: 2027-07-01
The Jefferson Energy Storage project is a proposed 100 MW battery storage project located in Lewis County, New York. The developer is listed as Jefferson Energy Storage. The project is currently active in the NYISO interconnection queue (queue ID NYISO-C24-263), with a queue entry date of September 23, 2024, and a proposed commercial operation date of July 1, 2027.
The Jefferson Energy Storage project has been the subject of recent news coverage, with four articles categorized as relating to development, regulatory issues, the energy industry, and potential hazards.
Generated from interconnection queue and public data sources
State
NY
County
Lewis
Grid Region
NYISO (New York)
Market
ISO/RTO Member
Developer
Jefferson Energy Storage
Utility
NM-NG
Entity
NYISO
Service Type
—
Point of Interconnection
Austin Rd. - Edic #11, 345 kV
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.
Last updated 2026-03-26
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