Mustang Bayou BESS
9.99 MW storage in Brazoria, TX · Proposed COD April 2025
9.99 MW
Capacity
1
Components
Battery
—
In Queue
IA Executed
IA Status
Signed Oct 2023
IA → COD
1y 6m
Schedule
13 months past proposed COD
Interconnection request submitted to ISO/RTO
ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.
Typical: 18–30 months (fastest major ISO)
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 6–18 months
Proposed COD: 2025-04-15
The Mustang Bayou BESS is a proposed 9.99 MW battery storage project located in Brazoria County, Texas. Developed by Maverick Clean Energy Center, the project is interconnected within the ERCOT region under queue ID ERCOT-24INR0599. The proposed commercial operation date is April 15, 2025.
The project's Interconnection Agreement (IA) has been executed as of October 31, 2023. The Point of Interconnection (POI) is at station MU, load transformer TR2, bus number 42960, at a transmission level voltage of 138kV. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
State
TX
County
Brazoria
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Maverick Clean Energy Center
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
STATION NAME (TSP STATION CODE) = MU LOAD/LOAD TRANSFORMER NAME = TR2 PTI BUS NUMBER = 42960 VOLTAGE (TRANSMISSION LEVEL) = 138KV
Data Source
LBNL
- ISO / RTO
- ERCOT
- Trading Hub
- HB_NORTH
- Hub Confidence
- LOW
This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.
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