New electric bus puts Volvo in the zone

It was not so long ago that Volvo started production of the B5LH, a hybrid bus that has a battery installed in the roof, feeding power to an electric motor that runs alongside a diesel engine. The electric motor merely complemented the engine, without bearing the brunt of the work. Volvo is now developing a number of technologies that will be incorporated into another hybrid, the 7900 Electric Hybrid, as well as used in the future pure electric bus that will begin operation in June 2015.