New Castle County, DE interconnection queue
1 interconnection applications are pending in New Castle County, DE, requesting 134 MW of new generating capacity, as of 15 August 2026. 25 projects have been built here and 32 have been withdrawn since 1998.
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 New Castle County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Solar | 1 | 134 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 25 | 4.8 GW | 40.3% |
| Still pending | 1 | 134 MW | 1.6% |
| Withdrawn | 32 | 6.8 GW | 51.6% |
| Suspended | 4 | — | 6.5% |
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 |
|---|---|---|---|---|---|
| Hay Road 230kV | Gas | 856 MW | withdrawn | 2011-04 | PJM |
| Cartanza 230kV | Gas | 760 MW | withdrawn | 2015-02 | PJM |
| Red Lion 500kV | Gas | 711 MW | withdrawn | 2000-07 | PJM |
| Edgemoor | Gas | 565 MW | withdrawn | 2001-12 | PJM |
| Edgemoor | Gas | 565 MW | withdrawn | 2002-09 | PJM |
| Hay Road | Gas | 565 MW | completed | 2007-09 | PJM |
| Red Lion 500kV | Gas | 565 MW | completed | 2007-09 | PJM |
| Red Lion 500kV | Gas | 550 MW | withdrawn | 2000-07 | PJM |
| Red Lion 500kV | Gas | 545 MW | completed | 1999-11 | PJM |
| Edgemoor | Gas | 521 MW | completed | 2000-04 | PJM |
| Hawkins Gate / Oak Grove 230kV | Gas | 450 MW | withdrawn | 1999-03 | PJM |
| Edgemoor 230kV | Gas | 450 MW | completed | 2007-02 | PJM |
| Hay Road 230kV 1 | Gas | 402 MW | withdrawn | 2010-10 | PJM |
| Hay Road 230kV | Gas | 371 MW | withdrawn | 2014-07 | PJM |
| Cartanza 230kV | Gas | 309 MW | completed | 2010-08 | PJM |
How this county ranks
New Castle County ranks #1045 of 1,607 US counties by capacity currently queued, and #1 of 3 in Delaware.
Other Delaware counties in the queue
| County | Pending | Capacity queued |
|---|---|---|
| Kent County | 3 | 90 MW |
| Sussex County | 1 | 75 MW |
Go deeper on New Castle 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 New Castle County on the map County reports All of Delaware