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This photo taken on June 7, 2017 shows the world's largest floating solar power plant in a lake in Huainan, in China's central Anhui province. The floating solar farm, which can generate 40 megawatts of electricity, was connected to the city's power grid in May 2017. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)

This photo taken on June 7, 2017 shows the world's largest floating solar power plant in a lake in Huainan, in China's central Anhui province.
The floating solar farm, which can generate 40 megawatts of electricity, was connected to the city's power grid in May 2017. / AFP PHOTO / STR / China OUT        (Photo credit should read STR/AFP/Getty Images)