Washington County, IL interconnection queue
3 interconnection applications are pending in Washington County, IL, requesting 835 MW of new generating capacity, as of 15 August 2026. 2 projects have been built here and 8 have been withdrawn since 2017.
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 Washington County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Hybrid | 1 | 500 MW |
| Solar | 2 | 335 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 2 | 400 MW | 15.4% |
| Still pending | 3 | 835 MW | 23.1% |
| Withdrawn | 8 | 1.1 GW | 61.5% |
| 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 |
|---|---|---|---|---|---|
| Other_ | Hybrid | 500 MW | active | 2022-09 | MISO |
| Ashley 138 kV Substation | Solar | 250 MW | completed | 2019-04 | MISO |
| Baldwin | Solar | 200 MW | withdrawn | 2022-09 | MISO |
| Baldwin | Solar | 200 MW | withdrawn | 2022-09 | MISO |
| 4JORD - 4ASHLEY 138.0kV | Solar | 185 MW | active | 2025-11 | MISO |
| Ashley-Turkey Hill Line 1482, between the Okawville and North Nashville substati | Solar | 160 MW | withdrawn | 2019-04 | MISO |
| Prest 138kV Switching Station | Solar | 150 MW | completed | 2018-03 | MISO |
| Prest 138kV Switching Station | Solar | 150 MW | withdrawn | 2019-04 | MISO |
| Okawville 138 kV | Solar | 150 MW | active | 2024-05 | MISO |
| 7PR STATE - 7MTVERNW 345.0kV | Solar | 120 MW | withdrawn | 2024-04 | MISO |
| Ashley | Solar | 100 MW | withdrawn | 2022-09 | MISO |
| Fayetteville - Marigold 138 kV Line Tap | Solar | 75 MW | withdrawn | 2018-03 | MISO |
| Ashley 138 kV Substation | Solar | 70 MW | withdrawn | 2017-06 | MISO |
How this county ranks
Washington County ranks #452 of 1,607 US counties by capacity currently queued, and #25 of 64 in Illinois.
Other Illinois counties in the queue
| County | Pending | Capacity queued |
|---|---|---|
| Lee County | 12 | 6.4 GW |
| Will County | 5 | 4.3 GW |
| McLean County | 11 | 2.9 GW |
| Ogle County | 5 | 2.9 GW |
| LaSalle County | 7 | 2.8 GW |
| Christian County | 8 | 2.3 GW |
| Peoria County | 7 | 2.1 GW |
| Tazewell County | 10 | 1.9 GW |
Go deeper on Washington 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 Washington County on the map County reports All of Illinois