MISO-J3131
300 MW generation in Union, AR · In queue since September 2022 · Proposed COD June 2026
300 MW
Capacity
1
Components
Solar
3y 8m
In Queue
In Progress (unknown 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: 2026-06-30
MISO-J3131 is a proposed solar generation project with a total capacity of 300 MW, located in Union County, Arkansas. The project is in the Midcontinent Independent System Operator (MISO) interconnection queue, with an entry date of September 14, 2022, and a proposed commercial operation date of June 30, 2026. Entergy Arkansas is the interconnecting utility.
The interconnection agreement for MISO-J3131 is currently in progress, with the specific study phase unknown. The point of interconnection is the El Dorado EHV - Sarepta 345/115KV SW STA 345 kV substation.
Generated from interconnection queue and public data sources
State
AR
County
Union
Grid Region
MISO (Midcontinent)
Market
ISO/RTO Member
Developer
—
Utility
ENTERGY ARKANSAS
Entity
MISO
Service Type
—
Point of Interconnection
El Dorado EHV - Sarepta 345/115KV SW STA 345 kV
Data Source
LBNL + Live
- ISO / RTO
- MISO
- Trading Hub
- ARKANSAS.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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