Aerial photo taken on Dec. 15, 2020 shows a view of a photovoltaic industrial park in Gonghe County, Tibetan Autonomous Prefecture of Hainan in northwest China's Qinghai Province. Qinghai authorities have been promoting clean energy in recent years. By early December this year, the province's power generation from clean energy reached 79 billion kWh, according to State Grid Qinghai Electric Power Company. (Xinhua/Zhang Hongxiang)