Arroyo Storage — Project Summary

Queue ID
ERCOT-24INR0306
Capacity
183.76 MW
Technology
Battery
Status
active
Location
Cameron, TX
Region
ERCOT
Developer
BT Cantwell Solar, LLC
IA Status
IA Executed

Arroyo Storage

ERCOT-24INR0306BetaActiveBatteryERCOTLBNL + Live

183.76 MW storage in Cameron, TX · In queue since May 2022 · Proposed COD April 2026

183.76 MW

Capacity

1

Components

Battery

3y 11m

In Queue

IA Executed

IA Status

Signed Aug 2022

Interconnection Timeline

Queue → IA

3 months

IA → COD

3y 8m

Total Duration

3 months

Construction75%
Queue EntryMay 10, 2022

Interconnection request submitted to ISO/RTO

Interconnection Study

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

Typical: 18–30 months (fastest major ISO)

Interconnection AgreementAug 10, 2022

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 6–18 months

Commercial Operation

Proposed COD: 2026-04-14

Project Details

State

TX

County

Cameron

Region

ERCOT

Developer

BT Cantwell Solar, LLC

Utility

—

Entity

ERCOT

Service Type

—

Point of Interconnection

Tap 345kV 8318 Rio Hondo - 8317 La Palma (New Gulch Substation )

Data Source

LBNL + Live

No news available for this project.