LFP batteries don't handle below-freezing temperatures very well, but that could be mitigated by using insulation and water cooling/heating depending on the tim

LFP batteries don't handle below-freezing temperatures very well, but that could be mitigated by using insulation and water cooling/heating depending on the time of year. Also maybe hooking them up to a pre-heater system that gets the batteries up to temperature before their route begins. (Sort of like those oil pan heaters they use in really cold climates.) Cabin heating could be done with a heat pump for more efficiency, I suppose. Heating could consume quite a bit of power, but I suppose compared to the energy required to move a school bus around it's probably fairly minor.