Dong Qiang, who applied to sell independently generated electricity in Tianjin, inspects the solar and wind panel grids on his roof in Tianjin on April 6, 2013. The Tianjin Binhai Electricity Company, a branch of the State Grid, recently received from Dong the first individual application to sell electricity. Dong said the electricity generated by his panels can be used for his home while remaining electricity can be sold. [Photo/Xinhua]

Dong Qiang stands beside an electricity generator panel on his roof in Tianjin on April 6, 2013. The Tianjin Binhai Electricity Company, a branch of the State Grid, recently received from Dong the first individual application to sell electricity. Dong said the electricity generated by his panels can be used for his home while remaining electricity can be sold. [Photo/Xinhua]