'Fortescue [mining entrepreneur] ... announces world’s first infinity train.'
“The Infinity Train has the capacity to be the world’s most efficient battery electric locomotive. The regeneration of electricity on the downhill loaded sections will remove the need for the installation of renewable energy generation and recharging infrastructure, making it a capital efficient solution for eliminating diesel and emissions from our rail operations.”
(Williams Advanced Engineering, Oxfordshire UK) >

https://wae.com/news/fortescue-buys-williams-advanced-engineering-and-announces-worlds-first-infinity-train/