TMB is the operator of the Barcelona Metro line 9. Siemens press picture. Rolling stock for the new metro line will consist of 50 steel-wheeled trains of the Alstom 9000 series. Siemens press picture.

Regenerative brakes allow metro trains to produce energy rather than heat, which is now being used to supply EV charging points at street level. The Barcelona subway grinds to a halt, the doors ...

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 ...