Bottom Grass BESS
202.21 MW storage in Colorado, TX · In queue since November 2020 · Proposed COD December 2026
202.21 MW
Capacity
1
Components
Battery
5y 6m
In Queue
IA Executed
IA Status
Signed Jun 2023
Queue → IA
2y 7m
IA → COD
3y 6m
Total Duration
2y 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 executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 6–18 months
Proposed COD: 2026-12-01
The Bottom Grass BESS project is a proposed 202.21 MW battery storage project located in Colorado County, Texas. The developer is Bottom Grass Solar Project, LLC. The project is interconnected within the ERCOT region under queue ID ERCOT-23INR0083, with an interconnection queue entry date of November 5, 2020. The proposed commercial operation date is December 1, 2026.
The interconnection agreement for the Bottom Grass BESS project was executed on June 29, 2023. The project has been the subject of recent news coverage.
Generated from interconnection queue and public data sources
State
TX
County
Colorado
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Bottom Grass Solar Project, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
tap 345 kV 9073 Holman - 44200 Hillje
Data Source
LBNL
- ISO / RTO
- ERCOT
- Trading Hub
- HB_SOUTH
- Hub Confidence
- MEDIUM
- POI Substation
- Holman 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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