GENEVA, Sept. 28 -- 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 (中国广东省广州市黄埔区科学城科翔路11号), CHINA SOUTHERN POWER GRID RESEARCH TECHNOLOGY CO., LTD. (Third Floor, Building 3, No.11 Kexiang Road, Science Park, Huangpu DistrictGuangzhou, Guangdong 510663), 广州南网科研技术有限责任公司 (中国广东省...