Surplus; G736
120 MW hybrid in Codington, SD · In queue since October 2023 · Proposed COD November 2026
120 MW
Capacity
1
Components
Other
3 years
In Queue
—
IA Status
COD target: 2026
One connected view of the asset's ownership, operating or development evidence, grid context, commercial relationships, history, and forward outlook.
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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
Surplus; G736 (queue ID MISO-S1046) is a proposed hybrid energy development project in Codington County, South Dakota, with a total capacity of 120 MW. The project's technology is listed as battery storage, with its technology details including both "Other" and "Battery" designations. The only component specified in the queue data is an "Other" component rated at 120 MW, and no separate battery capacity is given. The project would connect to the grid at the Big Stone South 230kV point of interconnection, within the service territory of Otter Tail Power Company.
The project is in the Midcontinent Independent System Operator (MISO) interconnection queue, which it entered on October 13, 2023, and its status is active. The proposed commercial operation date is November 1, 2026. No developer is identified and no interconnection agreement status is reported in the available data.
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.
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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.
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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.
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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.
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