Slow Flow Train
I was reading about the infinity train recently. This is a battery powered electric train that never needs recharging, at least not in normal operation. This sounds impossible, but in this case it works because the train is used in mining operations. The minerals are mined in the middle of Australia and then shipped to the coast; the point being that energy regenerated from the braking on the way to the coast, when the train is fully loaded, is used to charge the batteries to return the train to the mine when it is empty. It’s like a virtual counter-weight system.