Big Stone South to Ellendale 345kV (J1621)

Big Stone South to Ellendale 345kV is a 400.0 MW wind interconnection project in McPherson, South Dakota with a current status of withdrawn. It is proposed to connect at Big Stone South to Ellendale 345kV.

400.0 MWCapacity
WithdrawnStatus
Market
WindTechnology

Project facts

Canonical nameBig Stone South to Ellendale 345kV
Queue IDJ1621
Statuswithdrawn
Source statusWithdrawn
Market
TechnologyWind
Capacity400.0 MW
StateSouth Dakota
CountyMcPherson
Point of interconnectionBig Stone South to Ellendale 345kV
Requested (queue) date2020-06-25
Proposed in-service date2023-09-01
Operational date2023-09-01
Withdrawn date2021-11-17
Developer
Utility / transmission ownerOtter Tail Power Company

Cross-source records

This project is also observed in: Lawrence Berkeley National Laboratory — Queued Up interconnection dataset. interXdata links these source records without double-counting the project.

What changed

ObservedFieldOld valueNew valueMateriality
2026-07-29new_projectwithdrawnhigh

Explore related data

Source last checked2026-08-27
Data last materially changed2026-08-27
Page data generated2026-08-27

Provenance: MISO — generator interconnection queue. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.

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