MISO-J2552
80 MW storage in Whiteside, IL · In queue since September 2022 · Proposed COD June 2026
80 MW
Capacity
1
Components
Battery
3y 8m
In Queue
Cluster Study
IA Status
COD target: 2026
Total Duration
3y 9m
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: 2026-06-18
MISO-J2552 is a proposed 80 MW battery storage project located in Whiteside County, Illinois. The project, which consists of 80 MW of battery capacity, is being developed within the Midcontinent Independent System Operator (MISO) region. Its interconnection request was entered into the MISO queue on September 14, 2022, with a proposed commercial operation date of June 18, 2026. The project's interconnection status is currently in the Cluster Study phase, and the point of interconnection is the Cordova to Sub 39 345kV line.
The project is sponsored by MidAmerican Energy Co. and is listed as an active project in the MISO interconnection queue.
Generated from interconnection queue and public data sources
State
IL
County
Whiteside
Grid Region
MISO (Midcontinent)
Market
ISO/RTO Member
Developer
—
Utility
MIDAMERICAN ENERGY CO.
Entity
MISO
Service Type
—
Point of Interconnection
Cordova to Sub 39 345kV line
Data Source
LBNL + Live
- ISO / RTO
- MISO
- Trading Hub
- ILLINOIS.HUB
- Hub Confidence
- HIGH
- POI Substation
- Sub 39
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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