McMEXICO STORAGE
201.9 MW storage in Hidalgo, TX · In queue since February 2022 · Proposed COD November 2028
201.9 MW
Capacity
1
Components
Battery
4y 3m
In Queue
Facility Study
IA Status
COD target: 2028
Total Duration
6y 9m
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 not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2028-11-30
The McMEXICO STORAGE project is a proposed 201.9 MW battery storage project located in Hidalgo County, Texas. It is being developed by FRESH AIR ENERGY II, LLC. The project is currently active in the ERCOT interconnection queue as entry ERCOT-25INR0040, with a queue entry date of February 28, 2022.
The proposed commercial operation date for the McMEXICO STORAGE project is November 30, 2028. Its interconnection status is currently in the Facility Study phase. Recent news coverage indicates public interest in the development of this project.
Generated from interconnection queue and public data sources
State
TX
County
Hidalgo
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
FRESH AIR ENERGY II, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
8644 Trade Zone 138kV
Data Source
LBNL + Live
- 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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