We save in the nett energy needed to travel from point A to point B by half or more. This is because the internal combustion energy (often call ICE) waste 70% of the energy to heat, friction and braking. Whenever we generate the momentum to forward the vehicles., just as we can never drive a car without brakes, we have convert that energy into heating our brake pad. Thus much of this are wasted and in EV we can recover those energy by way