I mean, hybrid buses are common. Dublin Bus’s fleet is about 900 conventional diesel, 300 plug-in hybrid, a trivial number of light hybrid (they never committed

I mean, hybrid buses are common. Dublin Bus’s fleet is about 900 conventional diesel, 300 plug-in hybrid, a trivial number of light hybrid (they never committed to these), and 150 electric. But hybrid buses also don’t seem to have a future (at least as urban buses); at least here the plan is to buy no more diesel or hybrid buses; the current fleet will age out.