Bottom Grass BESS II
BetaActiveBatteryERCOTLBNL
150.6 MW storage in Colorado, TX · In queue since November 2022 · Proposed COD December 2026
150.6 MW
Capacity
1
Components
Battery
3y 4m
In Queue
Facility Study
IA Status
COD target: 2026
Interconnection Timeline
Total Duration
4y 1m
Facilities Study50%
Queue EntryNov 7, 2022
Interconnection request submitted to ISO/RTO
Interconnection StudyCurrent
ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.
Typical: 18–30 months (fastest major ISO)
Interconnection Agreement
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Commercial Operation
Proposed COD: 2026-12-01
Project Details
State
TX
County
Colorado
Region
ERCOT
Developer
Flint Rock Solar Project, LLC
Utility
—
Entity
ERCOT
Point of Interconnection
Tap 345kV 9073 Holman - 44200 Hillje
Data Source
LBNL
No news available for this project.