(260527) -- HUZHOU, May 27, 2026 (Xinhua) -- A drone photo taken on May 27, 2026 shows the power lines at Heping Town of Changxing County, Huzhou City of east China's Zhejiang Province. In recent years, State Grid Huzhou power supply company has been constantly promoting the upgrading of the county-level power grids, advancing the integration of renewable energy sources into power grids, and endeavoring to construct a safer, greener and smarter power grid. (Xinhua/Xu Yu)