Beijing, May 29 (Youth.cn) - Staffs were doing maintenance work for world’s first joint AC-DC converter station in Taizhou, Jiangsu Province to assure stable operation of power grid equipment in summer season. Taizhou joint AC-DC converter station is world’s first high tension AC-DC converter station and it is also the receiving terminal converter station of ±800 kV transmission project from Ximeng to Taizhou. Being part of energy passage that connect coal and electricity base in western China and load center in eastern China, this converter station annually receives 12 billion kilowatt-hours’ electricity out of region, supports stable development of Yangtze River Delta regional economy. Photo/VCG