Day County, SD interconnection queue
1 interconnection applications are pending in Day County, SD, requesting 300 MW of new generating capacity, as of 15 August 2026. 0 projects have been built here and 9 have been withdrawn since 2003.
Source: interconnection queues published by MISO. Parsed and normalised by Watt Street. Data as of 15 August 2026. A queued project is a request, not a commitment.
What is waiting in Day County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Hybrid | 1 | 300 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 0 | 0 MW | 0.0% |
| Still pending | 1 | 300 MW | 10.0% |
| Withdrawn | 9 | 1.1 GW | 90.0% |
| Suspended | 0 | — | 0.0% |
Withdrawal is the ordinary outcome of an interconnection application nationally, not a sign of a problem in this county. Most withdrawals are a developer testing a site and moving on.
The largest projects on file
| Project | Fuel | Capacity | Status | Filed | Queue |
|---|---|---|---|---|---|
| Ellendale - Twin Brooks 345.0kV | Hybrid | 300 MW | active | 2024-04 | MISO |
| Ellendale 345 - Twin Brooks 345.0kV | Wind | 300 MW | withdrawn | 2024-04 | MISO |
| Ellendale - Big Stone South 345kV Line | Wind | 200 MW | withdrawn | 2017-06 | MISO |
| Big Stone to Ellendale (BS3ELR) 345kV (J933) | Wind | 200 MW | withdrawn | 2020-06 | MISO |
| GEN-2019-060 | Wind | 150 MW | withdrawn | 2019-05 | SPP |
| GEN-2015-097 | Wind | 100 MW | withdrawn | 2015-10 | SPP |
| GEN-2019-032 | Battery | 63 MW | withdrawn | 2019-04 | SPP |
| GEN-2019-057 | Solar | 63 MW | withdrawn | 2019-04 | SPP |
| GI-0302 | Wind | 49 MW | withdrawn | 2003-03 | WAPA-IS |
| GEN-2016-164 | Wind | 8 MW | withdrawn | 2016-11 | SPP |
How this county ranks
Day County ranks #797 of 1,607 US counties by capacity currently queued, and #7 of 19 in South Dakota.
Other South Dakota counties in the queue
| County | Pending | Capacity queued |
|---|---|---|
| Campbell County | 10 | 2.1 GW |
| Deuel County | 2 | 1.3 GW |
| Brookings County | 2 | 980 MW |
| Grant County | 2 | 500 MW |
| McPherson County | 2 | 400 MW |
| Brown County | 3 | 374 MW |
| Bon Homme County | 1 | 200 MW |
| Clark County | 1 | 200 MW |
Go deeper on Day County
The interactive map plots every one of these applications, and a generated county report puts them in a sourced PDF with the date each figure was true on every page.
Open Day County on the map County reports All of South Dakota