philnewmerc
MB Enthusiast
Going uphill in a round trip actually extends your range.
The car's battery gets charged on the way back due to regeneration.
Obviously there's a net energy loss, but overall the range is longer than when driving on a plane. This is mainly because there's little regeneration when driving at a constant speed on the motorway.
That's my experience with the IONIQ 5, anyway.
Just from a physics pov this makes no sense. As you say the regen energy gained going down a hill will be less than the extra expended energy going up it. Hence it cannot extend the range over (as a comparison) a flat road with the same average speed. I think people think this because they're not comparing like with like (slow hill road vs fast motorway). However, if there's no alternative but to go over a hill then regen is clearly desirable compared to a ice with none. Regen in town where you have no alternative but to brake is obviously more efficient than losing kinetic energy as heat energy in the brakes. EVs make complete sense in town vs ice, but not as much as buses, taxis, trams, tube, cycling and walking.