Substation Scout

Stonewall 138 kV

PJM queue ID C01-1910

Queue IDC01-1910
Project nameStonewall 138 kV
Status (as published)Active
SubstationStonewall
Point of interconnectionStonewall 138 kV
CountyFrederick
StateMD
Voltage138 kV
Capacity150 MW
Resource (as published)Storage
Resource categoryBattery (normalised for filtering)
Target commercial operation2029-03-01
Source datasetcycle

Additional filed fields

DeveloperVA-202 LLC
Transmission OwnerAPS
Project TypeGeneration Interconnection
CycleC01
StagePhase 1
Mw Energy150.0
Mw Capacity150.0
Mfo150.0
Submitted Date4/24/2026
Last Updated6/5/2026

Fields shown are those promoted into this dataset. The original ISO filing may contain further columns (study reports, agreement dates, milestone flags) that are retained in the pipeline but not all surfaced here. Always confirm against the ISO's published queue before relying on any value.