An electrician installs ammeters for new electric heating appliances in Chiqiao village, Taiyuan, Oct 11. Taiyuan in Shanxi province, one of the regions dependent on coal mining, will bid farewell to burning coal this winter as the city has been making a gradual switch from coal to gas since 2012. More local residents now use electricity and clean sources of energy for their heating. [Photo/Xinhua]

Workers install electric heating facilities in Chiqiao village, Taiyuan, Oct 11. [Photo/Xinhua]