# How Barcelona’s Metro trains generate electricity

- Link: https://www.widthness.com/how-barcelonas-metro-trains-generate-electricity/
- Published: 2025-01-25T09:00:04-06:00
- Author: Curated by Theresa Wysocki

Image credit: (left) Getty Images. (right) Screenshot: How Barcelona’s Metro is recharging itself. Article by Teodosia Dobriyanova. Mashable – January 23, 2025. 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. […] Click here to view original web page at mashable.com Curated by Theresa Wysocki See Full Bio