Solar panels line mountains in Jiaocheng county, Lyuliang city, Shanxi province. By contracting out the right to use barren mountains to generate electricity, Jiaocheng county has introduced a photovoltaic project and established 58 photovoltaic areas covering more than 166 hectares. The annual power generation of the photovoltaic areas now exceeds 70 million kWh, with significant economic and environmental benefits. [Photo/sxrb.com]