Maderagemela BESS1 — Project Summary

Queue ID
ERCOT-26INR0426
Capacity
153.96 MW
Technology
Battery
Status
active
Location
Waller, TX
Region
ERCOT
Developer
Twinwood ES1, LLC
IA Status
Facility Study

Maderagemela BESS1

BetaActiveBatteryERCOTLBNL + Live

153.96 MW storage in Waller, TX · In queue since February 2024 · Proposed COD October 2027

153.96 MW

Capacity

1

Components

Battery

2y 1m

In Queue

Facility Study

IA Status

COD target: 2027

Interconnection Timeline

Total Duration

3y 8m

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: 2027-10-27

Project Details

State

TX

County

Waller

Region

ERCOT

Developer

Twinwood ES1, LLC

Utility

Entity

ERCOT

Point of Interconnection

Tap 138kV 44750 FULSHR_S25_8 to 44860 TWINWD_S25_8

Data Source

LBNL + Live

No news available for this project.