China's largest set of onshore wind turbines has started operation in a demonstration area for renewable energy in north China's Zhangjiakou City, Hebei Province.

The unit is capable of generating up to 120,000 kilowatt hours of electricity daily, enough for 10s of thousands of households.

The capacity of the new generator unit is 3.3 times greater than that of the previous units deployed across China.
The generator unit is also equipped with an intelligent electricity admission control system to deal with the instability brought about by the larger capability.

All venues in Zhangjiakou to be used during the 2020 Winter Olympic Games will completely rely on renewable energy.