How Barcelona’s Metro trains generate electricity
1 min read
Image credit: (left) Getty Images. (right) Screenshot: How Barcelona’s Metro is recharging itself. Article by Teodosia Dobriyanova. Mashable –
The Catalan city of Barcelona, home to Sagrada Família, is now partially powered by its own Metro underground trains, thanks to a system called regenerative braking. When an electric vehicle is slowed, the excess kinetic energy released when pressing the brake is harvested, transformed into electricity via a generator, and then stored for future use. […]
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