MISO-J3941
1,144 MW generation in Deuel, SD · In queue since March 2025
1,144 MW
Capacity
0
Components
1y 2m
In Queue
—
IA Status
Total Duration
1y 2m
Study Phase
Phase 1
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)
Commercial operation date not yet determined
MISO-J3941 is a proposed 1144 MW gas-fired generation project located in Deuel County, South Dakota. The project, under development by Otter Tail Power Company, is currently active in the Midcontinent Independent System Operator (MISO) interconnection queue. It is slated to connect to the Astoria 345kV substation.
The project entered the MISO queue on March 26, 2025, seeking Network Resource Interconnection Service (NRIS). It is currently in Phase 1 of the study phase.
Generated from interconnection queue and public data sources
State
SD
County
Deuel
Grid Region
MISO (Midcontinent)
Market
ISO/RTO Member
Developer
—
Utility
OTTER TAIL POWER COMPANY
Entity
MISO
Service Type
NRIS
Point of Interconnection
Astoria 345kV substation
Data Source
Live · MISO
- ISO / RTO
- MISO
- Trading Hub
- MINN.HUB
- Hub Confidence
- HIGH
- Nearest Node (Estimated)
- OTP.TATANKARID
- POI Substation
- Astoria Switching Station
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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