Substation Scout

Firefly Fields Storage

ERCOT queue ID 29INR0123

Queue ID29INR0123
Project nameFirefly Fields Storage
Status (as published)SS Completed, FIS Started, No IA
SubstationTap Rock Island to Glidden
Point of interconnectionTap 138 kV 57640 Rock Island to 7258 Glidden
CountyColorado
StateTX
Voltage138 kV
Capacity156.5 MW
Resource (as published)OTH/BA
Resource categoryBattery (normalised for filtering)
Target commercial operation2028-09-30
Source datasetlarge

Additional filed fields

Interconnecting EntityFirefly Fields Energy Center LLC
Cdr ZoneSOUTH
Fuel CodeOTH
Technology CodeBA
Screening Study Complete45827

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.