Appaloosa Run BESS
100 MW storage in Upton, TX · In queue since March 2022 · Proposed COD August 2026
100 MW
Capacity
1
Components
Battery
4y 2m
In Queue
Facility Study
IA Status
COD target: 2026
Total Duration
4y 5m
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: 2026-08-30
The Appaloosa Run BESS project is a proposed 100 MW battery storage project located in Upton County, Texas. Developed by APPALOOSA RUN STORAGE, LLC, the project entered the ERCOT interconnection queue as entry ERCOT-24INR0238 on March 7, 2022. The current proposed commercial operation date is August 30, 2026. The project's interconnection status is currently in the Facility Study phase.
The Appaloosa Run BESS project is planned to connect to the New Palouse 138kV substation. Recent news coverage indicates activity related to deals involving the project.
Generated from interconnection queue and public data sources
State
TX
County
Upton
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
APPALOOSA RUN STORAGE, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
New Palouse 138kV (#60278)
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.
Last updated 2026-03-26
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