MISO-J3591
400 MW hybrid in St. Helena Parish, LA · In queue since April 2024 · Proposed COD August 2028
400 MW
Capacity
1
Components
Solar
2y 1m
In Queue
—
IA Status
COD target: 2028
Total Duration
4y 4m
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: 2028-08-31
MISO-J3591 is a proposed 400 MW hybrid solar and battery energy storage project located in St. Helena Parish, Louisiana. The project, consisting of 400 MW of solar generation, is in the Midcontinent Independent System Operator (MISO) interconnection queue, having entered the queue on April 17, 2024. The proposed commercial operation date is August 31, 2028. The interconnecting utility is Entergy Louisiana.
The project is currently listed as active in the MISO queue. It would connect to the grid at the McKnight - Plant Daniel 500.0kV point of interconnection. Recent news coverage has discussed the project's potential impact on the region's energy infrastructure.
Generated from interconnection queue and public data sources
State
LA
County
St. Helena Parish
Grid Region
MISO (Midcontinent)
Market
ISO/RTO Member
Developer
—
Utility
ENTERGY LOUISIANA
Entity
MISO
Service Type
—
Point of Interconnection
MCKNIGHT - PLANT DANIEL 500.0kV
Data Source
LBNL + Live
- ISO / RTO
- MISO
- Trading Hub
- LOUISIANA.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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