Tidwell Prairie II Batt
200 MW storage in Robertson, TX · In queue since March 2021 · Proposed COD July 2026
200 MW
Capacity
1
Components
Battery
5y 2m
In Queue
Facility Study
IA Status
COD target: 2026
Total Duration
5y 4m
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: 2026-07-01
The Tidwell Prairie II Batt project is a proposed 200 MW battery storage project located in Robertson County, Texas. The developer is TIDWELL PRAIRIE II LLC. It is currently in the ERCOT interconnection queue as entry ERCOT-22INR0503, with a queue entry date of March 16, 2021. The proposed commercial operation date is July 1, 2026, and the project's interconnection agreement status is currently in the Facility Study phase.
The project consists of 200 MW of battery storage capacity. It is interconnected at Tap 345kV 3400 Twin Oak - 39950 TNP One. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
State
TX
County
Robertson
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
TIDWELL PRAIRIE II LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 345kV 3400 Twin Oak - 39950 TNP One
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.
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