Since 2018, Proterra electric buses have been powering through the frigid temperatures of Duluth, Minnesota, operating in conditions as cold as –27°F in one of the coldest cities in the United States. We sat down with Mark Ness, Director of Maintenance at the Duluth Transit Authority, to talk through how the agency’s seven Proterra buses have performed through recent cold weather and snowy conditions. Q: How have your Proterra buses performed in the cold weather that you experience in Duluth, Minnesota? Mark: Our Proterra electric buses are excellent in the snow, usually putting the diesel buses to shame. Q: What is the terrain in Duluth and how are your Proterra buses equipped for handling this terrain?