Cornwall BESS
203.8 MW storage in Williamson, TX
203.8 MW
Capacity
1
Components
Battery
—
In Queue
—
IA Status
Interconnection request submitted to ISO/RTO
ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.
Typical: 18–30 months (fastest major ISO)
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Commercial operation date not yet determined
The Cornwall BESS project is a proposed 203.8 MW battery storage project located in Williamson County, Texas. The project is listed in the ERCOT interconnection queue as entry ERCOT-24INR0244.
The project's interconnection status is currently suspended. Cornwall BESS has appeared in recent news coverage regarding deals.
Generated from interconnection queue and public data sources
State
TX
County
Williamson
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
—
Utility
—
Entity
ERCOT
Service Type
—
Data Source
LBNL
- ISO / RTO
- ERCOT
- Trading Hub
- HB_NORTH
- Hub Confidence
- LOW
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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