Grey relational analysis on the main energy consumption of China in the 21st century

This paper analyses the energy consumption by grey relevance theory.It analyses the sectors consumption data since 2000.It also analyses the character of energy consumption structure and searches the status of every sector.The three kind of main high-carbon energy-coal,oil, natural gas are also analysed in the paper.After the association relation of sectors and energy consumption is found,this paper gives relevant advice on the foundation of effect level to energy consumption.