Barcelona is turning subway trains into power stations

Grist
By Natalie DonbackSep 24, 2024, 4:45 am229 pts
Most of the passengers emerging from the station in Bellvitge, a working-class neighborhood outside Barcelona, have no idea just how innovative the city’s subway system is. Using technology not unlike the regenerative braking found in hybrids and electric vehicles, the trains they rode generated some of the…

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