Twin Groves Storage I
BetaActiveBatteryPJMLBNL + Live
50 MW storage in Mclean, IL · In queue since March 2020 · Proposed COD January 2028
50 MW
Capacity
1
Components
Battery
6 years
In Queue
IA Executed
IA Status
COD target: 2028
Interconnection Timeline
Total Duration
7y 10m
Construction75%
Queue EntryMar 27, 2020
Interconnection request submitted to ISO/RTO
System Impact Study
PJM processes interconnection requests through multi-phase System Impact Studies (SIS).
Typical: ~48 months (historically longest)
Interconnection Agreement
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
ConstructionCurrent
Project under construction
Typical: 6–18 months
Commercial Operation
Proposed COD: 2028-01-28
Project Details
State
IL
County
Mclean
Region
PJM
Developer
—
Utility
ComEd
Entity
PJM
Point of Interconnection
Blue Mound 345 kV
Data Source
LBNL + Live
No news available for this project.