After the electricity "Plant-Grid Separation" reform in early 2002, the assets of State Electric Power Corporation (国家电力公司) were divided into the five "power generation groups" that retained the power plants and five regional subsidiaries belonging to the State Grid Corporation of China in Beijing.
Efter "elværks-elnets-adskillelsesreformen" i 2002 blev aktiverne i State Electric Power Corporation (国家电力公司) delt i fem elproduktions-koncerner som fortsatte driften af kraftværkerne og fem regionale datterselskaber med tilhørsforhold til State Grid Corporation of China.