Van Hool, Ballard and Transit Authority in Aberdeen sign an agreement for 10 buses March 15, 2013 | Europe Company News Ballard, bus manufacturer Van Hool NV and the Transit Authority in Aberdeen, Scotland, have signed an agreement for the delivery of 10 buses that will be powered by Ballard fuel cells. The project wil... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password