Surplus; J442
120 MW hybrid in Codington, SD · In queue since October 2023 · Proposed COD November 2026
120 MW
Capacity
1
Components
Other
2y 7m
In Queue
—
IA Status
COD target: 2026
Total Duration
3y 1m
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: 2026-11-01
The Surplus; J442 development project is a proposed 120 MW hybrid energy project located in Codington County, South Dakota. The project, consisting of a 120 MW battery energy storage system, is interconnected to the Midcontinent Independent System Operator (MISO) queue as project S1047. Otter Tail Power Company is the interconnecting utility.
The project entered the MISO queue on October 13, 2023, with a proposed commercial operation date of November 1, 2026. The point of interconnection is the Big Stone South 230kV substation. The project is currently listed as active in the interconnection queue.
Generated from interconnection queue and public data sources
State
SD
County
Codington
Grid Region
MISO (Midcontinent)
Market
ISO/RTO Member
Developer
—
Utility
OTTER TAIL POWER COMPANY
Entity
MISO
Service Type
—
Point of Interconnection
Big Stone South 230kV
Data Source
LBNL + Live
- 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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