Analysis on the coordinated development between China's power industry and national economy based on optimal model GM (1, 1)

Power industry plays an important role in the development of national economy. Researching into the relationship between China's power industry and national economy can provide references for policymakers of power industry and national economy. Firstly select the index system and prediction method. Secondly according to the sample data from 2003 to 2008, the prediction precision is tested and all the indicators are predicted from 2010 to 2015 based on optimal model GM (1, 1). Thirdly, the correlation coefficient and coupling between power industry and national economy are calculated and the trend of coordinated development is analyzed. The result shows the coupling will be maintained at about 0.6, and the stability of coordinated development between national economy and power industry will be further enhanced in the coming years.