There are actually two buses in operation at my university which run on fuel cells: http://www.kit.edu/downloads/Flyer_Wasserstoffbus_EN.pdf
They have been in operation since 2013, so they seem to work pretty well.
They have been in operation since 2013, so they seem to work pretty well.
http://www.hydrogenlondon.org/projects/london-hydrogen-bus-p...
http://www.volvogroup.com/group/global/en-gb/newsmedia/_layo...