Avant Prairie BESS
201.72 MW storage in Freestone, TX · In queue since September 2024 · Proposed COD July 2027
201.72 MW
Capacity
1
Components
Battery
1y 8m
In Queue
Facility Study
IA Status
COD target: 2027
Total Duration
2y 10m
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: 2027-07-01
The Avant Prairie BESS project is a proposed 201.72 MW battery storage project located in Freestone County, Texas. Developed by Avant Prairie ESS LLC, the project consists entirely of battery storage. It is interconnected within the ERCOT region and entered the interconnection queue as ERCOT-27INR0316 on September 4, 2024. The proposed commercial operation date is July 1, 2027, and the project's interconnection agreement status is currently in the Facility Study phase.
The Avant Prairie BESS project is linked to the existing Avant Prairie ESS operating plant (EIA ID 68349). The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
State
TX
County
Freestone
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Avant Prairie ESS LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 345kV BIGBRNE (#3380) - JEWETT (#3390)
Data Source
LBNL + Live
- ISO / RTO
- ERCOT
- Trading Hub
- HB_NORTH
- Hub Confidence
- MEDIUM
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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