Press release content from PR Newswire. The AP news staff was not involved in its creation. Thomas Built Buses Delivers 50th Proterra Powered Electric School Bus May 5, 2021 GMT Proterra Logo (PRNewsFoto/Proterra) (PRNewsfoto/Proterra) HIGH POINT, N.C. and BURLINGAME, Calif., May 5, 2021 /PRNewswire/ -- Thomas Built Buses (TBB), a leading manufacturer of school buses in North America, its exclusive Virginia dealer, Sonny Merryman Inc., and Proterra Inc (“Proterra”), a leading innovator in commercial vehicle electrification technology, this week celebrated the delivery of the 50th Saf-T-Liner C2 Jouley battery-electric school bus. The milestone delivery went to Loudon County Public Schools in Virginia as part of phase one of Dominion Energy’s Electric School Bus Initiative.