Dubai Route 2020 metro extension inaugurated
https://www.railwaygazette.com/projects-and-planning/dubai-route-2020-metro-extension-inaugurated/56924.article
I wonder how they can convert energy from train's braking energy to electric power for lighting, ventilation, lifts, and escalators at each station.
If the energy is used for something on train, we can understand it. But, it seems impossible to convey that energy from train to station.
