Corazon Storage
204.8 MW storage in Webb, TX · In queue since August 2021 · Proposed COD July 2025
204.8 MW
Capacity
1
Components
Battery
4y 9m
In Queue
IA Executed
IA Status
Signed Dec 2021
Queue → IA
4 months
IA → COD
3y 7m
Total Duration
4 months
Schedule
9 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: 2025-07-31
The Corazon Storage project is a proposed 204.8 MW battery energy storage system in Webb County, Texas. Developed by Guajillo Energy Storage LLC, the project is interconnected within the Electric Reliability Council of Texas (ERCOT) queue as entry ERCOT-23INR0343. The project entered the queue on August 9, 2021, and has a proposed commercial operation date of July 31, 2025. An Interconnection Agreement (IA) was executed on December 21, 2021. The point of interconnection is the 80219 Lobo Substation 345kV.
The Corazon Storage project has been the subject of recent news coverage, with nine articles appearing in industry, development, and deals categories.
Generated from interconnection queue and public data sources
State
TX
County
Webb
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Guajillo Energy Storage LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
80219 Lobo Substation 345kV
Data Source
LBNL
- ISO / RTO
- ERCOT
- Trading Hub
- HB_SOUTH
- Hub Confidence
- MEDIUM
- Nearest Node (Estimated)
- WFTANK_ESS1
- POI Substation
- Lobo Substation
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.
Last updated 2026-03-26
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