Cook County, IL interconnection queue
3 interconnection applications are pending in Cook County, IL, requesting 305 MW of new generating capacity, as of 15 August 2026. 2 projects have been built here and 35 have been withdrawn since 2006.
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 Cook County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Battery | 3 | 305 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 2 | 336 MW | 5.0% |
| Still pending | 3 | 305 MW | 7.5% |
| Withdrawn | 35 | 4.0 GW | 87.5% |
| 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 |
|---|---|---|---|---|---|
| Davis Creek-Burnham | Gas | 1.3 GW | withdrawn | 2016-09 | PJM |
| Zion-Stateline | Unknown | 1.0 GW | withdrawn | 2016-05 | PJM |
| Calumet-Burnham 345 kV | Battery | 500 MW | withdrawn | 2020-09 | PJM |
| Calumet | Gas | 327 MW | completed | 2008-03 | PJM |
| Calumet 138 kV | Gas | 296 MW | withdrawn | 2020-09 | PJM |
| Sheffield - Burnham 345 (Tie line between CE and NIPS, NIPS owns 1.87 miles) | Solar | 270 MW | withdrawn | 2022-08 | MISO |
| Burnham 138kV | Battery | 200 MW | active | 2020-03 | PJM |
| Chicago Heights 138 kV | Battery | 150 MW | withdrawn | 2021-09 | PJM |
| Chicago Heights 138kV | Battery | 110 MW | withdrawn | 2022-09 | PJM |
| State Line - River Energy Center 138 kV | Battery | 85 MW | active | 2020-09 | PJM |
| Des Plaines 138 kV | Battery | 80 MW | withdrawn | 2022-09 | PJM |
| River EC 138 kV | Battery | 58 MW | withdrawn | 2021-07 | PJM |
| River EC 138 kV | Battery | 58 MW | withdrawn | 2021-09 | PJM |
| Robbins 138kV | Biomass | 50 MW | withdrawn | 2006-11 | PJM |
| Matteson - East Frankfort 138 kV | Solar | 44 MW | withdrawn | 2022-03 | PJM |
How this county ranks
Cook County ranks #771 of 1,607 US counties by capacity currently queued, and #51 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 Cook 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.