Trinidad ESS Addition
110 MW storage in Henderson, TX · In queue since December 2019 · Proposed COD March 2026
110 MW
Capacity
1
Components
Battery
6y 5m
In Queue
Facility Study
IA Status
COD target: 2026
Total Duration
6y 3m
Schedule
1 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 not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2026-03-20
The Trinidad ESS Addition is a proposed 110 MW battery storage project located in Henderson County, Texas. The developer is Luminant Generation Company LLC. This project is listed in the ERCOT interconnection queue as entry ERCOT-22INR0276, with a queue entry date of December 11, 2019, and a proposed commercial operation date of March 20, 2026. The project's interconnection status is currently in the Facility Study phase.
The proposed project consists of 110 MW of battery storage capacity. The point of interconnection is Tap 138kV 3127 Trinidad _x0013_ 3466 Kerens. The Trinidad ESS Addition has appeared in recent news coverage.
Generated from interconnection queue and public data sources
State
TX
County
Henderson
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
LUMINANT GENERATION COMPANY LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 138kV 3127 Trinidad _x0013_ 3466 Kerens
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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