Vial BESS
135.18 MW storage in Hill, TX · In queue since July 2022 · Proposed COD September 2027
135.18 MW
Capacity
1
Components
Battery
3y 10m
In Queue
Facility Study
IA Status
COD target: 2027
Total Duration
5y 2m
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: 2027-09-15
The Vial BESS project is a proposed 135.18 MW battery storage project located in Hill County, Texas. Developed by Gransolar Texas Eleven LLC, the project consists entirely of battery storage. It is listed in the ERCOT interconnection queue as entry ERCOT-25INR0122, with a queue entry date of July 5, 2022, and a proposed commercial operation date of September 15, 2027. The project's interconnection status is currently in the Facility Study phase.
The proposed project is linked to an existing operating plant named Vial BESS (EIA plant ID 67784). The point of interconnection is Chatt(234) - Pecan Street (3352) 138kV. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
State
TX
County
Hill
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Gransolar Texas Eleven LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Chatt(234) - Pecan Street (3352) 138kV
Data Source
LBNL + Live
- ISO / RTO
- ERCOT
- Trading Hub
- HB_NORTH
- Hub Confidence
- HIGH
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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