North China Power Grid Corporation: Beijing Electric Power Company, Tianjin Electric Power Company, Hebei Electric Power Company, Shanxi Electric Power Company and Shandong Electric Power Company.
Central China Power Grid Company: Hubei Electric Power Company, Hunan Electric Power Company, Jiangxi Electric Power Company, Henan Electric Power Company, Sichuan Electric Power Company and Chongqing Electric Power Company.
East China Power Grid Corporation: Shanghai Electric Power Company, Jiangsu Electric Power Company, Zhejiang Electric Power Company, Anhui Electric Power Company and Fujian Electric Power Company.
Northwest Power Grid Company: Shaanxi Electric Power Company, Gansu Electric Power Company, Ningxia Electric Power Company, Qinghai Electric Power Company and Xinjiang Electric Power Company.
Northeast Power Grid Company: Liaoning Electric Power Company, Jilin Electric Power Company and Heilongjiang Electric Power Company.
Manage 5 scientific research units, several directly affiliated units and holding companies;
China Electric Power Research Institute, State Grid Nanjing Institute of Automation, State Grid Wuhan Institute of High Voltage, State Grid Beijing Institute of Economics and Technology.
ZTE Power Industry Development Co., Ltd., State Grid Beijing Electric Power Construction Research Institute, China Anneng Construction Corporation, State Grid Corporation Advanced Training Center, State Grid Xinyuan Holdings Co., Ltd., State Grid Construction Co., Ltd., State Grid Operation Co., Ltd., State Grid Information Center, State Grid Communication Center and State Grid News.
China Electric Power Finance Co., Ltd., China Electric Power Technology Import and Export Corporation, State Grid Shenzhen Energy Development Group Co., Ltd., Yingda International Trust and Investment Co., Ltd., Ying Da Securities Co., Ltd., China Electric Power Press Co., Ltd., State Grid Corporation Social Insurance Management Center.