McCamey's Castle Battery
409.6 MW storage in Upton, TX · In queue since October 2023 · Proposed COD March 2027
409.6 MW
Capacity
1
Components
Battery
2y 7m
In Queue
Facility Study
IA Status
COD target: 2027
Total Duration
3y 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: 2027-03-31
The McCamey's Castle Battery project is a proposed 409.6 MW battery storage project located in Upton County, Texas. Developed by Castle Storage, LLC, the project entered the ERCOT interconnection queue as entry ERCOT-25INR0557 on October 13, 2023. The current interconnection status is listed as Facility Study, with a proposed commercial operation date of March 31, 2027.
The project consists of 409.6 MW of battery capacity. It is currently listed as an active project within the ERCOT queue. The point of interconnection is the 76597 Robbins Switch 138 kV.
Generated from interconnection queue and public data sources
State
TX
County
Upton
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Castle Storage, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
76597 Robbins Switch 138 kV
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.
