Wallie Storage
205.4 MW storage in Howard, TX · In queue since March 2023 · Proposed COD September 2027
205.4 MW
Capacity
1
Components
Battery
3y 2m
In Queue
Facility Study
IA Status
COD target: 2027
Total Duration
4y 6m
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
Wallie Storage, a proposed battery storage project in Howard County, Texas, is being developed by Wallie Storage, LLC. The project, with a total capacity of 205.4 MW, is currently in the ERCOT interconnection queue as entry ERCOT-25INR0361, with a queue entry date of March 27, 2023. The proposed commercial operation date is September 15, 2027, and the project's interconnection agreement status is currently in the Facility Study phase.
The proposed project is linked to the existing Wallie Storage operating plant (EIA ID 67668).
Generated from interconnection queue and public data sources
State
TX
County
Howard
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Wallie Storage, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 138kV 11324 Leatherwood POD - 1326 Stanton East Switch
Data Source
LBNL
- ISO / RTO
- ERCOT
- Trading Hub
- HB_WEST
- Hub Confidence
- MEDIUM
- POI Substation
- Big Spring West Substation
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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