Diamond Cowboy Storage — Project Summary

Queue ID
ERCOT-26INR0428
Capacity
103.5 MW
Technology
Battery
Status
active
Location
San Patricio, TX
Region
ERCOT
Developer
Diamond B Storage, LLC
IA Status
Facility Study

Diamond Cowboy Storage

BetaActiveBatteryERCOTLBNL + Live

103.5 MW storage in San Patricio, TX · In queue since April 2024 · Proposed COD October 2028

103.5 MW

Capacity

1

Components

Battery

1y 11m

In Queue

Facility Study

IA Status

COD target: 2028

Interconnection Timeline

Total Duration

4y 6m

Facilities Study50%
Queue EntryApr 15, 2024

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: 2028-10-16

Project Details

State

TX

County

San Patricio

Region

ERCOT

Developer

Diamond B Storage, LLC

Utility

Entity

ERCOT

Point of Interconnection

Tap 345kV 8249 Angstrom - 8624 Grissom

Data Source

LBNL + Live

No news available for this project.