Research On Regional Power Market And Large Consumers Direct Purchasing

In the development of power market, setting up regional power market and implementing large consumers direct purchasing are two issues which deserve attention and research. They are of great importance in construction and development of power markets in China.First of all, based on the development of power markets in the world and the characteristics of regional power market, the feasibility of setting up regional power market in China is analyzed. As the provincial electric power system performs very well in running regional networks in the wide regional power system in China, through research, it is put forward that a two scaled power market, which consists of wide regional power market and provincial power market, should be implemented in China.Then the present development, the characteristics and the existing problems of large consumers direct purchasing in the world are discussed. The feasibility of large consumers direct purchasing in China is analyzed. Quantitative research is performed on some issues, such as electricity transmission price. Based on the researches on electricity transmission price in other countries, some ideas and methods are put forward, such as the composition of electricity transmission price, quantitative calculation of network connection price, quantitative calculation of transmission price, quantitative calculation of auxiliary service and calculation of management and service price.In the end, some numerical examples of different types of large consumers direct purchasing are provided. The comparison between two ways of extended electricity supply, which are self-owned power plants and large consumers direct purchasing, is made through numerical examples. The numerical examples and their results are good guidance and reference in the implementation of large consumers direct purchasing in power market.