McHenry County, IL interconnection queue
4 interconnection applications are pending in McHenry County, IL, requesting 1.1 GW of new generating capacity, as of 15 August 2026. 2 projects have been built here and 20 have been withdrawn since 2010.
Source: interconnection queues published by PJM. 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 McHenry County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Battery | 2 | 600 MW |
| Solar | 2 | 450 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 2 | 40 MW | 7.7% |
| Still pending | 4 | 1.1 GW | 15.4% |
| Withdrawn | 20 | 3.4 GW | 76.9% |
| 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 |
|---|---|---|---|---|---|
| Garden Prairie 345 kV | Battery | 500 MW | withdrawn | 2022-02 | PJM |
| Silver Lake | Gas | 455 MW | withdrawn | 2014-02 | PJM |
| Silver Lake 345 kV | Battery | 400 MW | active | 2021-03 | PJM |
| Garden Prairie 345 kV | Battery | 400 MW | withdrawn | 2022-02 | PJM |
| Silver Lake 345 | Battery | 400 MW | withdrawn | 2023-03 | PJM |
| Crete 345 kV | Solar | 357 MW | withdrawn | 2018-09 | PJM |
| SILVER LAKE- CHERRY VALLEY 345 KV | Solar | 300 MW | active | 2020-03 | PJM |
| Pleasant Valley 345 kV | Battery | 250 MW | withdrawn | 2022-09 | PJM |
| Silver Lake 345 kV | Battery | 200 MW | active | 2021-03 | PJM |
| Silver Lake 138 | Battery | 200 MW | withdrawn | 2023-03 | PJM |
| Marengo-Pleasant Valley | Unknown | 164 MW | withdrawn | 2010-11 | PJM |
| Belvidere-Marengo | Battery | 152 MW | withdrawn | 2019-06 | PJM |
| Silver Lake - Cherry Valley 345 kV | Solar | 150 MW | active | 2021-09 | PJM |
| Marengo 138kV | Solar | 100 MW | withdrawn | 2018-03 | PJM |
| Belvidere-Marengo 138 kV | Solar | 100 MW | withdrawn | 2019-03 | PJM |
How this county ranks
McHenry County ranks #358 of 1,607 US counties by capacity currently queued, and #17 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 McHenry 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 McHenry County on the map County reports All of Illinois