The Comparative Research Of Regional Energy Efficiency Based On Dea Mode

With the development of economics, the society demanding for energy is growing, because of people's uncontrolled exploitation,the non-renewable resources are depleted day by day.So,how to use energy scientifically and efficiently and ensure the national economy's sustainable development have become a very important research topic all over the world . With oil prices soaring and climate and environment's deterioration, improving the efficiency of energy use has evolved into an important strategic initiative of protecting the national energy security, sustaining the economic development and reducing environmental pollution.China's energy reserves are not only limited but also the regional distribution of energy is uneven, the per capita conventional energy resources are inadequate. With the grave situation of China's current energy-saving, The 17th National Congress of the CPC has also proposed to strengthen the conservation of energy resources,help to promote the policy of saving energy resources,and accelerate the formation of an institutional mechanism for sustainable development.The report on the work of the government of NPC and CPPCC sessions in 2009 also makes it clear in the energy-saving proposal.In order to save energy, promote the sustainable economic development and deepen theoretical research,it is necessary to pay more attention on the study of energy statistics measurement methods.Firstly, this paper cards and screens the energy efficiency of the related theories,introduces the significance and performance evaluation of energy efficiency at home and abroad in the field research.Secondly, elaborates on the concept of energy efficiency and its influencing factors,on the current performance evaluation in the area of several common methods of comparison,further points out that DEA model in the comprehensive evaluation of the plication advantages.And finally, constructs a model which is based on energy - economy - environment DEA analysis and a super-efficiency DEA model,then gives a comparative research of China's various regions and various provinces'energy efficiency,in-depth analyses the factors of China's energy efficiency,then further discusses the improvement measures of China's energy efficiency and makes some recommendations for reference.The innovation of this paper performs on that it breaks the previous and traditional single-factor methods of calculating energy efficiency, selects some representative energy efficiency indexes which can comprehensively considerate the relationship among energy,economy and environment ,builds a super-efficiency DEA model for the first time,and gives China's energy efficiency a comprehensive evaluation with multi-inputs and multi-outputs.Not only on the evaluation of each province but also on the evaluation of various regions,and this paper further analyzes the factors of China's energy efficiency,for the DEA invalid provinces,it points out the ways and policies to improve their energy efficiency.