Video: King County Metro’s electric bus charging facility tour

October 25, 2022

Estimated reading time: 2 minutes

The 2022 APTA TRANSform Conference featured a new, must-do experience for attendees – an in-person site tour of King County Metro’s South Base Test Charging Facility & Power Distribution center.



Led by King County Metro, the tour gave more than 100 visitors the opportunity to see firsthand the pilot project which enables live testing of charging equipment. The facility tests the capabilities of plug-in and overhead pantograph chargers from three manufacturers – ABB, Siemens and Heliox – as well as each charger’s compatibility with The Mobility House’s charging and energy management solution, ChargePilot. 


ChargePilot is also being evaluated for its cost-saving load management and smart charging capability, which is expected to reduce the total cost of ownership for King County Metro’s electric bus charging pilot by over $1 million dollars.

The charging facility powers King County Metro’s current working fleet of electric buses and will help inform the transit’s ambitious plans to achieve 100 percent zero emissions by 2035.


See inside the King County Metro South Base Test Facility for yourself.

Learn more about The Mobility House’s work with transit agencies like Metro Transit St. LouisKnoxville Area Transit and Antelope Valley Transit Agency.