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 7m
In Queue
IA Executed
IA Status
Signed Dec 2021
Queue → IA
4 months
IA → COD
3y 7m
Total Duration
4 months
Schedule
8 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
State
TX
County
Webb
Region
ERCOT
Developer
Guajillo Energy Storage LLC
Utility
—
Entity
ERCOT
Point of Interconnection
80219 Lobo Substation 345kV
Data Source
LBNL
Eni Plenitude completes construction of 200MW/400MWh Texas BESS
Eni Plenitude, the utility arm of the large oil and gas major Eni, has completed construction of the 200MW/400MWh Guajillo battery energy storage system (BESS)...
Eni Plenitude completes its largest battery storage project in Texas
The 400 MWh battery energy storage system (BESS) was acquired from developer Baywa re, along with a nearby utility-scale solar plant, in 2022.
Last updated 2026-03-26