MISO-J2974
50 MW storage in Adams, IL · In queue since September 2022 · Proposed COD August 2026
50 MW
Capacity
1
Components
Battery
3y 8m
In Queue
Cluster Study
IA Status
COD target: 2026
Total Duration
3y 11m
Interconnection request submitted to ISO/RTO
MISO uses the Definitive Planning Phase (DPP) process with 3 study phases.
Typical: 30–40 months (historical); 12 months target
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2026-08-15
MISO-J2974 is a proposed 50 MW battery storage project located in Adams County, Illinois. The project is in the Midcontinent Independent System Operator (MISO) interconnection queue, having entered the queue on September 15, 2022. Ameren Illinois is the utility associated with the project.
The proposed commercial operation date for MISO-J2974 is August 15, 2026. Its interconnection status is currently in the Cluster Study phase. The point of interconnection is the 4HULL - 4HERLEMAN 138.0kV line.
Generated from interconnection queue and public data sources
State
IL
County
Adams
Grid Region
MISO (Midcontinent)
Market
ISO/RTO Member
Developer
—
Utility
AMEREN ILLINOIS
Entity
MISO
Service Type
—
Point of Interconnection
4HULL - 4HERLEMAN 138.0kV
Data Source
LBNL + Live
- ISO / RTO
- MISO
- Trading Hub
- 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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