St. Mary's County, MD interconnection queue
0 interconnection applications are pending in St. Mary's County, MD, requesting 0 MW of new generating capacity, as of 15 August 2026. 0 projects have been built here and 9 have been withdrawn since 2001.
Source: interconnection queues published by the transmission providers serving this county. 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 St. Mary's County, by fuel
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 0 | 0 MW | 0.0% |
| Still pending | 0 | 0 MW | 0.0% |
| Withdrawn | 9 | 558 MW | 100.0% |
| 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 |
|---|---|---|---|---|---|
| Chalk Point | Gas | 340 MW | withdrawn | 2001-07 | PJM |
| Hewitt Road - Oakville 69kV | Solar | 80 MW | withdrawn | 2021-09 | PJM |
| Oakville-St. Andrews 69kV | Solar | 52 MW | withdrawn | 2018-03 | PJM |
| Lexington Park 69 kV | Solar | 20 MW | withdrawn | 2018-11 | PJM |
| Lexington Park 69 kV | Solar | 20 MW | withdrawn | 2020-03 | PJM |
| Lexington Park 69 kV | Solar | 20 MW | withdrawn | 2020-09 | PJM |
| Park Hall | Solar | 10 MW | withdrawn | 2011-02 | PJM |
| Leonardtowne | Solar | 10 MW | withdrawn | 2011-02 | PJM |
| Mechanicsville | Solar | 6 MW | withdrawn | 2011-02 | PJM |
How this county ranks
St. Mary's County ranks #1376 of 1,607 US counties by capacity currently queued, and #19 of 22 in Maryland.
Other Maryland counties in the queue
| County | Pending | Capacity queued |
|---|---|---|
| Prince George's County | 2 | 1.5 GW |
| Garrett County | 3 | 675 MW |
| Harford County | 1 | 500 MW |
| Montgomery County | 1 | 500 MW |
| Caroline County | 1 | 145 MW |
| Baltimore city | 1 | 135 MW |
| Charles County | 1 | 110 MW |
| Allegany County | 1 | 80 MW |
Go deeper on St. Mary's 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 St. Mary's County on the map County reports All of Maryland