MISO-J4153
250 MW storage in Grant, SD · In queue since October 2025
250 MW
Capacity
0
Components
7 months
In Queue
—
IA Status
Total Duration
7 months
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-J4153 is a proposed 250 MW battery storage project located in Grant County, South Dakota. The project is in the Midcontinent Independent System Operator (MISO) interconnection queue, having entered the queue on October 7, 2025. Otter Tail Power Company is the utility associated with the project, which seeks Network Resource Interconnection Service (NRIS) and proposes to interconnect at the Big Stone South 345 kV substation.
The project is currently listed as active in the MISO queue. No information is available regarding a proposed commercial operation date or interconnection agreement status. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
State
SD
County
Grant
Grid Region
MISO (Midcontinent)
Market
ISO/RTO Member
Developer
—
Utility
OTTER TAIL POWER COMPANY
Entity
MISO
Service Type
NRIS
Point of Interconnection
Big Stone South 345 kV substation
Data Source
Live · MISO
- ISO / RTO
- MISO
- Trading Hub
- MINN.HUB
- Hub Confidence
- HIGH
- Nearest Node (Estimated)
- OTP.MDU.BSTON1
- POI Substation
- Big Stone South 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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