Tomahawk Road BESS
257.25 MW storage in Ector, TX · In queue since August 2024 · Proposed COD March 2028
257.25 MW
Capacity
1
Components
Battery
1y 9m
In Queue
Facility Study
IA Status
COD target: 2028
Total Duration
3y 7m
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: 2028-03-01
The Tomahawk Road BESS is a proposed energy storage project located in Ector County, Texas, with a total capacity of 257.25 MW. The project, developed by Horizon Energy Storage Greenfield Project Holdings LLC, consists entirely of battery storage. It is currently active in the ERCOT interconnection queue as entry ERCOT-27INR0341, with a queue entry date of August 16, 2024.
The proposed commercial operation date for the Tomahawk Road BESS is March 1, 2028. Its interconnection point is Tap 138 kV 1019 Moss - 1113 Odessa Southwest. The project's interconnection status is currently in the Facility Study phase.
Generated from interconnection queue and public data sources
State
TX
County
Ector
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Horizon Energy Storage Greenfield Project Holdings LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 138 kV 1019 Moss - 1113 Odessa Southwest
Data Source
LBNL + Live
- ISO / RTO
- ERCOT
- Trading Hub
- HB_WEST
- Hub Confidence
- MEDIUM
- POI Substation
- Moss 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.
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