Hybrid electric tram fuels green efforts

A hybrid electric tram powered by hydrogen and supercapacitor technology was put into operation on Thursday in Tangshan, North China's Hebei province, marking a big step in the application of green and new energy in public transport.

It is the world's first hybrid electric tram with hydrogen as the main power source, according to China Railway Rolling Corp Tangshan Co, which created the tram.

"Only water will be emitted from the tram, thus it is totally environmentally friendly," said Li Ming, manager of the company's technology department.