GENEVA, Sept. 1 -- DONGGUAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO., LTD (No. 239, Dongcheng Section, Dongcheng Road, Dongcheng StreetDongguan, Guangdong 523128), 广东电网有限责任公司东莞供电局 (中国广东省东莞市东城街道东城路东城段239号), ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID (No. 11 Kexiang Road, Science Park, Huangpu DistrictGuangzhou, Guangdong 510663), 南方电网科学研究院有限责任公司 (中国广东&#...