CHAPTER-4. POWER GRID SYSTEM (NATIONAL GRID) IN CHINA
China’s electric power industry is the world’s largest electricity producer. In china, most of the electricity produced from coal. According to 2014, 73% of domestic electricity production registered from coal energy. Since 2013, Coal-fired electricity production of renewable energy was decreased.
China has the world’s third biggest coal stockpile and massive hydroelectric resources available. However, a geographical mismatch between the location of the coal fields in the north-east (Heilongjiang, Jilin, and Liaoning) and north (Shanxi, Shaanxi, and Henan), hydropower in the south-west (Sichuan, Yunnan, and Tibet), and the fast-growing industrial Burden centre of the east (Shanghai-Zhejiang) and south (Guangdong, Fujian).
4.1 TYPES OF POWER GRID SYSTEM (NATIONAL GRID) IN CHINA
1. State Grid corporation
2. China Southern power grid
State grid and china southern power grid are linked by HVDC back to back connections.
4.1.1. STATE GRID CORPORATION
State Grid Corporation of china, most commonly known as STATE GRID. State Grid Corporation was founded on December 29, 2002. It is the state-owned electric utility monopoly of china and super-large utility company in the world. According to 2016, State grid has a stable ranking of the second largest enterprise on Fortune Global 500. State grid operates as a group of RMB (Ren Min Bi) 536.3 billion registered capital and 1.72 million employees, State grid provide power to over 1.1 billion customers in 26 provinces, municipalities, covering 88% of national territory. State Grid has been rated as an A- class company by State-owned Assets Supervision and Administration Commission evaluated on operation performance for 11 consecutive years. The State Grid company also own and operates overseas assets in the Philippines, Brazil, Portugal, Australia and Italy, etc., with good performance.
4.1.2. CHINA SOUTHERN POWER GRID
China Southern Power Grid company limited is one of the two state-owned power grid company and it was founded on December 29, 2002, as a result of one of the power system promulgated reform in china. China southern power grid, takes responsibilities of participating in the investment, construction and operates the transmission and distribution cover’s five southern provinces, Guangdong, Guangxi, Yunnan, Guizhou and Hainan. While, power generation, the power supplied by other five power generation groups.