Tumbleweed Storage
507.2 MW storage in Borden, TX · In queue since October 2023 · Proposed COD December 2027
507.2 MW
Capacity
1
Components
Battery
2y 7m
In Queue
Facility Study
IA Status
COD target: 2027
Total Duration
4y 2m
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: 2027-12-01
Tumbleweed Storage is a proposed 507.2 MW battery storage project located in Borden County, Texas. The project is being developed by Hecate Energy Tumbleweed Storage LLC. It is currently in the ERCOT interconnection queue as entry ERCOT-27INR0087, with a queue entry date of October 4, 2023. The proposed commercial operation date is December 1, 2027, and the project's interconnection agreement status is currently in the Facility Study phase.
The Tumbleweed Storage project consists solely of battery storage with a total capacity of 507.2 MW. The project has been the subject of recent news coverage related to the energy industry.
Generated from interconnection queue and public data sources
State
TX
County
Borden
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Hecate Energy Tumbleweed Storage LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
59905 Faraday 345 kV
Data Source
LBNL + Live
- ISO / RTO
- ERCOT
- Trading Hub
- HB_WEST
- Hub Confidence
- MEDIUM
- POI Substation
- Faraday 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.
