Not sure what their KWH/T/KM is but if we say 10 like a small truck, then you'd need around 100,000KWH to do 30KM which would get you down and up a pit once on a large site, twice on a smaller site. Assuming these trucks would have a battery swap type system. What I don't get is a lot of large mines are powered by huge diesel generator farms, so it seems like a backward step to do away with the diesel engine on the truck and charge the battery off essentially the same engine somewhere else with extra losses in the system.

