HAS THE UNBUNDLING REFORM IMPROVED SERVICE EFFICIENCY OF CHINA’S POWER GRID COMPANIES?

摘要

China’s electric power transmission and distribution network are collectively referred to the grid,which is an inalienable part of the power system.It connects power plants with customers.With the rapid development of China's economy and industrialization,the development of the power grid sector has achieved remarkable success.Coupling with the changing power supply and demand situation in recent years,improving the service quality and distribution efficiency of the power grid has become the most critical issue of grid companies.Since 2002,China has introduced a market competition mechanism in the power system.With the implementation of the unbundling reform of generation sector and power grid,the power assets managed by the state power company are divided into two types of business: power generation and power grid.Ongoing reforms aim to separate power plants from power-supply networks,privatize a significant amount of state-owned property,encourage competition,and revamp pricing mechanisms.Separation of the main electricity business from auxiliary businesses was also completed later.At the end of 2017,China's installed capacity has reached 1.777 billion kilowatts,and the power generation has amounted to 6.417 TWh,which are about 4.98 and 3.83 times those of 2002.