Substation Scout

Poseidon Storage

PJM queue ID AH1-249

Queue IDAH1-249
Project namePoseidon Storage
Status (as published)Active
SubstationLardin - Lake Lynn
Point of interconnectionLardin - Lake Lynn 138kV
CountyFayette
StatePA
Voltage138 kV
Capacity80 MW
Resource (as published)Storage
Resource categoryBattery (normalised for filtering)
Target commercial operation2028-12-31
Source datasetcycle

Tracked changes

No changes to this filing observed since PJM tracking began on August 27, 2026. Full change log →

Additional filed fields

DeveloperPoseidon Energy, LLC
Transmission OwnerAPS
Project TypeGeneration Interconnection
CycleTC2
StagePhase 3
Mw Energy80.0
Mw Capacity80.0
Mfo145.0
Submitted Date9/9/2021
Last Updated9/8/2026

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.