Wallkill Energy Storage
100 MW storage in Ulster, NY · In queue since September 2024 · Proposed COD November 2029
100 MW
Capacity
1
Components
Battery
1y 8m
In Queue
—
IA Status
COD target: 2029
Total Duration
5y 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)
Proposed COD: 2029-11-01
The Wallkill Energy Storage project is a proposed 100 MW battery storage project located in Ulster County, New York. The project, developed by ACE DevCo NC, LLC, is interconnected to the Central Hudson Gas & Electric (CHGE) grid at the Ohioville 115kV Substation. It is listed in the New York Independent System Operator (NYISO) interconnection queue under queue ID NYISO-C24-123, with an entry date of September 5, 2024, and a proposed commercial operation date of November 1, 2029.
The project consists of 100 MW of battery storage capacity. It is currently listed as active in the NYISO interconnection queue. The Wallkill Energy Storage project has appeared in recent news coverage regarding energy storage development in New York.
Generated from interconnection queue and public data sources
State
NY
County
Ulster
Grid Region
NYISO (New York)
Market
ISO/RTO Member
Developer
ACE DevCo NC,LLC
Utility
CHGE
Entity
NYISO
Service Type
—
Point of Interconnection
Ohioville 115kV Substation
Data Source
LBNL
- ISO / RTO
- NYISO
- Trading Hub
- ZONE G
- Hub Confidence
- HIGH
- POI Substation
- Ohioville 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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