Silver Lake 345 kV
400 MW storage in McHenry, IL · In queue since March 2025
400 MW
Capacity
0
Components
1y 2m
In Queue
—
IA Status
Total Duration
1y 2m
Interconnection request submitted to ISO/RTO
PJM processes interconnection requests through multi-phase System Impact Studies (SIS).
Typical: ~48 months (historically longest)
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Commercial operation date not yet determined
The Silver Lake 345 kV project is a proposed 400 MW battery storage development in McHenry County, Illinois. The project is located within the ComEd service area and is interconnected to the PJM grid. It entered the PJM interconnection queue as queue ID PJM-AG2-545 on March 6, 2025, but has since been moved to TC2.
The project is currently listed as active in the interconnection queue. No proposed commercial operation date or interconnection agreement (IA) status is available. The project has appeared in recent news coverage regarding energy storage development in the region.
Generated from interconnection queue and public data sources
State
IL
County
McHenry
Grid Region
PJM Interconnection
Market
ISO/RTO Member
Developer
—
Utility
ComEd
Entity
PJM
Service Type
Generation Interconnection
Data Source
Live · PJM
- ISO / RTO
- PJM
- Trading Hub
- N ILLINOIS HUB
- Hub Confidence
- MEDIUM
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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