An aerial view of the 100MW molten salt solar thermal power plant in Dunhuang City, Northwest China's Gansu Province, May 17, 2018. Installation of equipment for phase two of the power plant has started, and it\'s expected to send electricity to the grid. The plant has more than 12,078 sunlight-reflecting heliostats. Molten salt solar thermal plants can harness solar energy by using molten salt as a heat transfer medium. (Photo: China News Service/Yang Yanmin)
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