Big Stone South 230KV Substation (J3183)
Big Stone South 230KV Substation is a 125.0 MW solar interconnection project in Grant, South Dakota with a current status of withdrawn. It is proposed to connect at Big Stone South 230KV Substation.
125.0 MWCapacity
WithdrawnStatus
—Market
SolarTechnology
Project facts
| Canonical name | Big Stone South 230KV Substation |
|---|---|
| Queue ID | J3183 |
| Status | withdrawn |
| Source status | Withdrawn |
| Market | — |
| Technology | Solar |
| Capacity | 125.0 MW |
| State | South Dakota |
| County | Grant |
| Point of interconnection | Big Stone South 230KV Substation |
| Requested (queue) date | 2022-09-15 |
| Proposed in-service date | 2027-06-01 |
| Operational date | 2027-06-01 |
| Withdrawn date | 2025-10-27 |
| Developer | — |
| Utility / transmission owner | Otter 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
| Observed | Field | Old value | New value | Materiality |
|---|---|---|---|---|
| 2026-07-29 | new_project | — | withdrawn | high |
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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