Port City Energy Storage
101.2 MW storage in San Patricio, TX · In queue since October 2023 · Proposed COD June 2026
101.2 MW
Capacity
1
Components
Battery
2y 7m
In Queue
Facility Study
IA Status
COD target: 2026
Total Duration
2y 8m
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: 2026-06-15
The Port City Energy Storage project is a proposed 101.2 MW battery storage project located in San Patricio County, Texas. Developed by Port City Energy Storage, LLC, the project entered the ERCOT interconnection queue as entry ERCOT-25INR0541 on October 25, 2023. The current interconnection status is listed as Facility Study, with a proposed commercial operation date of June 15, 2026.
The project consists entirely of battery storage, with a total capacity of 101.2 MW. The point of interconnection is Tap 138kV 80258 Mayo4A - 80260 Gila4A. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
State
TX
County
San Patricio
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Port City Energy Storage, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 138kV 80258 Mayo4A - 80260 Gila4A
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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