Surplus; J442
120 MW hybrid in Codington, SD · In queue since October 2023 · Proposed COD November 2026
120 MW
Capacity
1
Components
Other
2y 9m
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
Entered MISO queue as S1047 with 120 MW battery storage project
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
Realization risk before commercial operation — cluster-study clearance, IA timing, counterparty mix, and withdrawal probability vs cohort. The diligence view that determines whether this project is worth pursuing. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
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
Composite operating-phase risk view — what this asset's risk profile would look like once it reaches commercial operation. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.
See the full risk decomposition + scenarios for this project.
Forward generation outlook — what this project would produce assuming it reaches commercial operation. Probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios, conditioned on the proposed COD. Powered by InfraSure's generation modeling stack.
See the full forecast + scenario decomposition for this project.
Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. The bankability view that determines whether the deal clears its covenants once online. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this project.
- 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.
No Ask reports yet for this entity.
Ask about Surplus; J442Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
