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It's not an issue of space, but one of mass. Tesla's newest batteries are supposedly around 270-300 Wh/kg. 5 tons of these batteries would give you 1500 kWh of
by Aerroon 3y ago
It's not an issue of space, but one of mass. Tesla's newest batteries are supposedly around 270-300 Wh/kg. 5 tons of these batteries would give you 1500 kWh of energy.
Compare this to diesel that has an energy density of 12,640 Wh/kg. Diesel engines are less efficient, but you would still save multiple extra tons in weight for the same distance traveled, which would increase your distance traveled further.
Electric buses do work, but the more batteries you cram in there the more extra weight you have to pull around at all times.
- Kirby64 3y agoI fail to see the issue here. School buses have ample space underneath them to store the batteries. Sure you have to account for the extra weight, but just like electric cars the efficiency of the electric motor in a bus is plenty to overcome the difference in power density of the 'fuel' source. Also, given school buses tend to do a lot of stop-and-go, and travel at lower speeds, this is essentially the ideal conditions for an EV.