Snow1964
Established Member
Yes, but they were probably specified with bigger batteries to allow use during colder winter days. European Operators also tend to leave them plugged in to heat the buses before service, and fit double glazing to better insulate buses.Not a surprise, though you'd assume that battery buses elsewhere in Europe would face much lower winter temperatures?
From what I understand, some London Operators (particularly Abellio) have tried to save money on chargers, so they have to unplug buses in middle of the night, as each charger is doing two buses each night. Not then so easy to pre-heat a bus before it leaves depot, which means extra load on batteries.
TfL sets lots of specs for its buses, but I don't think fuel tank size or electric range is one of them. I suspect some Operators chose buses with batteries that they thought were sufficient for normal duty cycles, but didn't allow sufficient margin for cold days when lots of electric heating of the bus is needed.
However it does explain why some routes were seeing diesel or hybrid buses in the evening instead of their booked electric buses.