Staff members patrol in a photovoltaic power station in Tujing Village, Yunzhou District of Datong City, north China's Shanxi Province, Aug. 3, 2021. The photovoltaic power station, built upon 1,851 mu (123.4 hectares) of saline-alkaline land, generates over 80 million KWH of power per year. (Xinhua/Cao Yang)
