Substation Scout

Three Mile Island 230 kV

PJM queue ID AH1-695

Queue IDAH1-695
Project nameThree Mile Island 230 kV
Status (as published)Active
SubstationThree Mile Island
Point of interconnectionThree Mile Island 230 kV
CountyDauphin
StatePA
Voltage230 kV
Capacity803 MW
Resource (as published)Nuclear
Resource categoryNuclear (normalised for filtering)
Target commercial operationNot reported
Source datasetcycle

Additional filed fields

DeveloperConstellation Energy Generation, LLC
Transmission OwnerME
Project TypeGeneration Interconnection
CycleTC2
StagePHASE 2
Mw Energy859.0
Mw Capacity803.0
Mfo859.0
Submitted Date4/3/2025
Last Updated5/14/2026

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.