Alamo City BESS — Project Summary

Queue ID
ERCOT-26INR0330
Capacity
128.12 MW
Technology
Battery
Status
active
Location
Bexar, TX
Region
ERCOT
Developer
ALAMO CITY ESS LLC
IA Status
Facility Study

Alamo City BESS

ERCOT-26INR0330BetaActiveBatteryERCOTLBNL + Live

128.12 MW storage in Bexar, TX · In queue since February 2024 · Proposed COD September 2027

128.12 MW

Capacity

1

Components

Battery

2y 2m

In Queue

Facility Study

IA Status

COD target: 2027

Interconnection Timeline

Total Duration

3y 7m

Facilities Study50%
Queue EntryFeb 27, 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: 2027-09-21

Project Details

State

TX

County

Bexar

Region

ERCOT

Developer

ALAMO CITY ESS LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

Tap 138kV 5294 Martinez - 5110 JT Deely

Data Source

LBNL + Live

News & Articles (1)Beta

Last updated 2026-03-26