MISO-J3229
140 MW hybrid in Maries, MO · In queue since September 2022 · Proposed COD April 2026
140 MW
Capacity
1
Components
Solar
3y 8m
In Queue
Cluster Study
IA Status
COD target: 2026
Total Duration
3y 7m
Schedule
0 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: 2026-04-24
MISO-J3229 is a proposed 140 MW hybrid solar and battery project located in Maries County, Missouri. The project, which consists of 140 MW of solar generation, is in the MISO interconnection queue as of September 14, 2022, with a proposed commercial operation date of April 24, 2026. The point of interconnection is at the 4DILLON-4LKSIDE TP2 138 KV substation. The project's interconnection status is currently in the Cluster Study phase.
The utility associated with the project is Ameren Missouri, and the entity is MISO. The project is listed as active in the interconnection queue. There has been recent news coverage of the project.
Generated from interconnection queue and public data sources
State
MO
County
Maries
Grid Region
MISO (Midcontinent)
Market
ISO/RTO Member
Developer
—
Utility
AMEREN MISSOURI
Entity
MISO
Service Type
—
Point of Interconnection
4DILLON-4LKSIDE TP2 138 KV
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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