why does the option to find a route from talos directly to the dam even exist if it is literally impossible?
the fastest it can get is 3m20s without having the task completed before. which is 200s. with the 2power/s consumption it would need the entire 400 power your rover has at the start. but you already lose some power from leaving talos with the rover. so you never have the energy necessary to finish the travel to the dam from talos.