There is a train in Australia that carries ore from a mine to a port, fully electric, which never needs external charging - the mine is higher than the port, so

There is a train in Australia that carries ore from a mine to a port, fully electric, which never needs external charging - the mine is higher than the port, so the train just charges its internal batteries going down, which is enough to drive it back up to the mine, it's very cool: https://www.popularmechanics.com/science/energy/a39372219/self-charging-infinity-train/ https://www.popularmechanics.com/science/energy/a39372219/se...