Hollow Branch Creek Storage
460 MW storage in Leon, TX · Proposed COD December 2027
460 MW
Capacity
1
Components
Battery
—
In Queue
—
IA Status
COD target: 2027
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)
Proposed COD: 2027-12-31
The Hollow Branch Creek Storage project is a proposed 460 MW battery energy storage system in Leon County, Texas. The project is listed in the ERCOT interconnection queue as entry ERCOT-24INR0423. Its proposed commercial operation date is December 31, 2027.
The project is currently listed as active in the interconnection queue. Recent news coverage indicates public interest in the development of large-scale battery storage projects within the ERCOT region.
Generated from interconnection queue and public data sources
State
TX
County
Leon
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
—
Utility
—
Entity
ERCOT
Service Type
—
Data Source
LBNL + Live
- 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.
