Millsing BESS
BetaActiveBatteryERCOTLBNL + Live
501.6 MW storage in Grimes, TX · In queue since February 2024 · Proposed COD October 2028
501.6 MW
Capacity
1
Components
Battery
2y 1m
In Queue
Facility Study
IA Status
COD target: 2028
Interconnection Timeline
Total Duration
4y 8m
Facilities Study50%
Queue EntryFeb 27, 2024
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: 2028-10-15
Project Details
State
TX
County
Grimes
Region
ERCOT
Developer
Millsing BESS
Utility
—
Entity
ERCOT
Point of Interconnection
44645 CNP Singleton 345kV
Data Source
LBNL + Live
No news available for this project.