Substation Scout

Mt Airy 230 kV

PJM queue ID C01-1929

Queue IDC01-1929
Project nameMt Airy 230 kV
Status (as published)Active
SubstationMt Airy
Point of interconnectionMt Airy 230 kV
CountyFrederick
StateMD
Voltage230 kV
Capacity300 MW
Resource (as published)Storage
Resource categoryBattery (normalised for filtering)
Target commercial operation2030-12-31
Source datasetcycle

Additional filed fields

DeveloperOld Main Storage LLC
Transmission OwnerAPS
Project TypeGeneration Interconnection
CycleC01
StagePhase 1
Mw Energy300.0
Mw Capacity300.0
Mfo300.0
Submitted Date4/27/2026
Last Updated6/8/2026

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.