Allegheny County, PA interconnection queue
1 interconnection applications are pending in Allegheny County, PA, requesting 5 MW of new generating capacity, as of 15 August 2026. 6 projects have been built here and 51 have been withdrawn since 1999.
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 Allegheny County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Solar | 1 | 5 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 6 | 1.9 GW | 10.3% |
| Still pending | 1 | 5 MW | 1.7% |
| Withdrawn | 51 | 4.4 GW | 87.9% |
| 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 |
|---|---|---|---|---|---|
| Springdale CC II 138kV | Gas | 610 MW | completed | 2018-03 | PJM |
| Springdale 3, 4, 5 | Gas | 590 MW | completed | 2013-05 | PJM |
| Springdale 138kV | Coal | 580 MW | withdrawn | 2009-02 | PJM |
| Yukon-Robbins 138kV | Gas | 541 MW | withdrawn | 2015-05 | PJM |
| Springdale 138 kV | Gas | 525 MW | completed | 1999-01 | PJM |
| Black Oak 500 kV | Gas | 500 MW | withdrawn | 2001-02 | PJM |
| Springdale 138kV | Battery | 356 MW | withdrawn | 2021-09 | PJM |
| Cheswick 138 kV | Battery | 300 MW | withdrawn | 2022-09 | PJM |
| Brunot Island 138 kV | Gas | 295 MW | withdrawn | 2019-09 | PJM |
| Brunot Island 138 kV | Gas | 284 MW | withdrawn | 2020-03 | PJM |
| Mitchell - Shepler Hill 138kV | Unknown | 242 MW | withdrawn | 2007-01 | PJM |
| Imperial-Joffre 138 kV | Solar | 215 MW | withdrawn | 2020-09 | PJM |
| Dans Mountain | Wind | 125 MW | withdrawn | 2004-09 | PJM |
| Springdale CT III 138 kV | Battery | 106 MW | withdrawn | 2020-09 | PJM |
| USAP-Woodville 138kV | Unknown | 100 MW | withdrawn | 2014-10 | PJM |
How this county ranks
Allegheny County ranks #1248 of 1,607 US counties by capacity currently queued, and #38 of 62 in Pennsylvania.
Other Pennsylvania counties in the queue
| County | Pending | Capacity queued |
|---|---|---|
| York County | 6 | 2.9 GW |
| Clearfield County | 11 | 1.5 GW |
| Indiana County | 3 | 1.2 GW |
| Dauphin County | 3 | 896 MW |
| McKean County | 4 | 870 MW |
| Centre County | 5 | 591 MW |
| Fayette County | 4 | 310 MW |
| Crawford County | 6 | 248 MW |
Go deeper on Allegheny 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 Allegheny County on the map County reports All of Pennsylvania