Holly Branch Storage
115.32 MW storage in Robertson, TX · In queue since June 2023 · Proposed COD June 2027
115.32 MW
Capacity
1
Components
Battery
2y 11m
In Queue
Facility Study
IA Status
COD target: 2027
Total Duration
4 years
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: 2027-06-01
The Holly Branch Storage project is a proposed 115.32 MW battery energy storage system in Robertson County, Texas. Developed by Holly Branch Solar, LLC, the project is currently active in the ERCOT interconnection queue as entry ERCOT-25INR0148, with a queue entry date of June 7, 2023. The proposed commercial operation date is June 1, 2027.
The project's interconnection status is currently in the Facility Study phase. The point of interconnection is the Tap 345kV 967 Gibbons Creek - 3400 Twin Oak. The project has appeared in recent news coverage regarding energy storage developments in Texas.
Generated from interconnection queue and public data sources
State
TX
County
Robertson
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Holly Branch Solar, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 345kV 967 Gibbons Creek - 3400 Twin Oak
Data Source
LBNL
- ISO / RTO
- ERCOT
- Trading Hub
- HB_SOUTH
- Hub Confidence
- MEDIUM
- POI Substation
- Gibbons Creek Station
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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