MISO-J3006
300 MW storage in Milwaukee, WI · In queue since September 2022 · Proposed COD January 2026
300 MW
Capacity
1
Components
Battery
3y 8m
In Queue
In Progress (unknown study)
IA Status
COD target: 2026
Total Duration
3y 4m
Schedule
4 months past proposed COD
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: 2026-01-02
MISO-J3006 is a proposed 300 MW battery storage project located in Milwaukee County, Wisconsin. The project, which consists of a single 300 MW battery component, is interconnected within the Midcontinent Independent System Operator (MISO) region. The project entered the MISO interconnection queue on September 14, 2022, with a proposed commercial operation date of January 2, 2026. The interconnection agreement is currently listed as "In Progress (unknown study)".
The proposed project is located at the Granville 345kV Substation. The transmission utility is American Transmission Company.
Generated from interconnection queue and public data sources
State
WI
County
Milwaukee
Grid Region
MISO (Midcontinent)
Market
ISO/RTO Member
Developer
—
Utility
AMERICAN TRANSMISSION COMPANY
Entity
MISO
Service Type
—
Point of Interconnection
Granville 345kV Substation
Data Source
LBNL + Live
- ISO / RTO
- MISO
- Trading Hub
- MINN.HUB
- Hub Confidence
- HIGH
- POI Substation
- Granville Substation
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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