Aerial photo taken on Aug. 23, 2018 shows the Bianshan wind farm in Changxing County, east China's Zhejiang Province. The Bianshan wind farm, the first wind farm in low wind speed zone in Zhejiang, joined the power grid in August 2015. So far it has generated 150 million kilowatt-hours (kwh) of electricity. (Xinhua/Xu Yu)