[Pfhreak]

You'd think so, but in practice my electric car is less efficient going over the mountains than driving a flat stretch.

So yes, they will be able to recover some energy on the way down and reduce wear on brakes, but they'll have to make sure their batteries are up to the task.

[galangalalgol]

Regen isn't 100% efficient, but its a lot better than dumping the momentum as heat. The problem is that the horizontal distance alone from denver to many destinations like lake city is enough to drain a battery.