McCamey's Castle Battery — Project Summary

Queue ID
ERCOT-25INR0557
Capacity
409.6 MW
Technology
Battery
Status
active
Location
Upton, TX
Region
ERCOT
Developer
Castle Storage, LLC
IA Status
Facility Study

McCamey's Castle Battery

ERCOT-25INR0557BetaActiveBatteryERCOTLBNL + Live

409.6 MW storage in Upton, TX · In queue since October 2023 · Proposed COD March 2027

409.6 MW

Capacity

1

Components

Battery

2y 6m

In Queue

Facility Study

IA Status

COD target: 2027

Interconnection Timeline

Total Duration

3y 5m

Facilities Study50%
Queue EntryOct 13, 2023

Interconnection request submitted to ISO/RTO

Interconnection StudyCurrent

ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.

Typical: 18–30 months (fastest major ISO)

Interconnection Agreement

Interconnection agreement not yet executed

Typical: 30–60 days (negotiation)

Commercial Operation

Proposed COD: 2027-03-31

Project Details

State

TX

County

Upton

Region

ERCOT

Developer

Castle Storage, LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

76597 Robbins Switch 138 kV

Data Source

LBNL + Live

No news available for this project.