Shenzhen's silent revolution: world's first fully electric bus fleet quietens Chinese megacity | Cities | The Guardian
https://www.theguardian.com/cities/2018/dec/12/silence-shenzhen-world-first-electric-bus-fleet
Shenzhen now has 16,000 electric buses in total and is noticeably quieter for it.
Shenzhen Bus Group estimates it has been able to conserve 160,000 tonnes of coal per year and reduce annual CO2 emissions by 440,000 tonnes. Its fuel bill has halved
To keep Shenzhen’s electric vehicle fleet running, the city has built around 40,000 charging piles. Shenzhen Bus Company has 180 depots with their own charging facilities installed. One of its major depots in Futian can accommodate around 20 buses at the same time. “Most of the buses we charge overnight for two hours and then they can run their entire service, as the range of the bus is 200km per charge."
Shenzhen Bus Company has switched its entire fleet of 4,600 taxis to electric ahead of schedule.