Seattle City Light Utility
Seattle, WA


  • No existing electrical distribution system in one analytical program in order to utilize advanced power system monitoring and analysis 
  • No validation of the power flow study of the entire network 

Solution: "Power Flow Study for the Entire Seattle City Light, Substations & Feeders up to Sub-Transmission Level"

  • Large data migration of the entire Seattle City Light from ArcGIS Legacy Platform to ETAP Geographical Information System (GIS)
  • Smart auto data validation and correction such as voltage and phase
  • Detection of the invalid looped connection in the primary and secondary networks
  • Power flow study on individual and multiple feeders from substations and identify the overloaded areas / equipment