3 ms·
Note that most of the energy in gasoline gets wasted as heat in a car, only a part gets used in winter to heat the cabin. So there's a factor of ~3 that you get
by pedrocr 6y ago
Note that most of the energy in gasoline gets wasted as heat in a car, only a part gets used in winter to heat the cabin. So there's a factor of ~3 that you get back in that comparison. So the more comparable number is more like 3-4%. Still very low of course. The electric motors are also lighter than what creates equivalent power for gasoline so there's another small amount you recover there. ~5% is probably reasonable.
- 0xffff2 6y agoThere are additional factors that are application dependent. I'm not sure how much if affects road vehicles, but for aircraft that fact that fuel burns off, making the aircraft lighter as the tanks empty is a huge contributor to total range, so you would need to subtract some factor to account for the fact that batteries have a constant mass.