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King County is taking action to confront climate change, and Metro is playing a major role by reducing transportation-related greenhouse gas emissions. Metro was a national leader in adopting diesel-electric hybrid buses, and recently deployed a new fleet of zero-emission electric trolley buses.

Now we’re taking the next step: transitioning to a zero-emission vehicle fleet powered by renewable energy.

This commitment is based on a successful test of three battery-electric buses and an in-depth feasibility analysis.

Assuming that battery bus technology evolves to meet our transit system’s needs, Metro will purchase only zero-emission buses starting in 2020. The transition to a zero-emission fleet could be completed as early as 2034, or by 2040 at the latest.

Zero-emission fleet media/news releases:

Date Topic
October 2017 Have you seen me? New extended range Proterra electric battery bus in test mode in King County—Metro Matters blog post
October 2017 Seattle Times op-ed: With some all-electric buses, Metro Transit rides into the future—shared by KC social media
March 2017 Zero-emission fleet feasibility report
January 2017 Commitment to purchase 120 battery buses
February 2016 Launch of battery bus test
August 2015 Launch of new electric trolleys, battery bus preview
August 2014 Federal grant to test battery buses

Metro’s Zero-emission Battery Bus Showcase

Metro hosted this educational event on Sept, 26, 2017 for transit agencies considering use of battery buses. Below are links to Showcase resources:

  • Photos
  • Presentation videos:
    • Showcase overview0:59
    • Dow Constantine, King County Executive – 4:02
    • Harold Taniguchi, Director, King County Dept. of Transportation – 2:20
    • Pete Melin, Director of Zero-Emissions Fleet, King County Metro – 14:46
    • Danny Ilioiu, R&D Director, New York City Metropolitan Transportation Authority – 13:40
    • Expert panel (battery bus technology, infrastructure, planning, procurement, and power) – 37:56
    • Rob Gannon, Metro Transit General Manager – 6:13

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