Solar power units installed for 300-MW photovoltaic electricity project in Qinghai

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Workers install a solar power unit at the construction site of a 300-MW photovoltaic electricity project of the China Datang Corporation Ltd. in Gonghe County, Tibetan Autonomous Prefecture of Hainan in northwest China's Qinghai Province, Dec. 15, 2020. (Xinhua/Zhang Hongxiang)