Dubuque County, IA interconnection queue
2 interconnection applications are pending in Dubuque County, IA, requesting 260 MW of new generating capacity, as of 15 August 2026. 0 projects have been built here and 3 have been withdrawn since 2018.
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 Dubuque County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Gas | 1 | 160 MW |
| Solar | 1 | 100 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 0 | 0 MW | 0.0% |
| Still pending | 2 | 260 MW | 40.0% |
| Withdrawn | 3 | 350 MW | 60.0% |
| 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 |
|---|---|---|---|---|---|
| Salem - Hickory Creek 345 kV line | Gas | 160 MW | active | 2022-09 | MISO |
| Salem 345kV Substation | Solar | 150 MW | withdrawn | 2018-03 | MISO |
| Center Grove 161kV Substation | Solar | 100 MW | withdrawn | 2019-04 | MISO |
| Gardner 69 kV substation | Solar | 100 MW | active | 2022-09 | MISO |
| Salem 161kv | Solar | 100 MW | withdrawn | 2024-04 | MISO |
How this county ranks
Dubuque County ranks #829 of 1,607 US counties by capacity currently queued, and #10 of 21 in Iowa.
Other Iowa counties in the queue
| County | Pending | Capacity queued |
|---|---|---|
| Linn County | 10 | 2.3 GW |
| Cerro Gordo County | 5 | 1.4 GW |
| Washington County | 3 | 1.1 GW |
| Marshall County | 4 | 717 MW |
| Clinton County | 3 | 610 MW |
| Franklin County | 3 | 560 MW |
| Webster County | 2 | 470 MW |
| Story County | 2 | 400 MW |
Go deeper on Dubuque 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.