Research On The Relationship Between Energy Efficiency And Carbon Intensity Of China

Energy is an essential material basis for human survival and development.Throughoutthe history of human society development,each significant progress in human civilizationis always coupled with improvement and replacement of energy resources.Thedevelopment and utilization of energy promote the world economy and the development ofhuman society greatly.However,the current energy situation is very grim,China has becamethe world’s second-biggest energy consumer after America,and has overtaken the US as theworld’s biggest carbon emitter in2008.Therefore,improving Energy efficiency has a vitalrole in achieving a low carbon economy and sustainable development and establishingresource conservation and environment friendly society.This paper first introduces the present condition of energy efficiency at home andabroad from two aspects like index and research content,and then reviews the DEA model,compares the pros and cons of the various efficiency evaluation method.For energy itselfdoes not create any output,only when a combination of energy and other production factorsthere will be no output.Then this paper takes labor,capital,coal,oil and natural gas as inputfactors;takes GDP,carbon dioxide emissions as output,and adopts the total factor energyefficiency index and the super-efficiency DEA model to calculate and compare the energyefficiency of various provinces in China.On this basis,we analyze the variance in energyefficiency in-depth by using Malmquist index.In order to fulfill the carbon intensity indexin the provinces,this paper examines the provinces’ energy saving and emission reductionpotential by the energy-saving model which based on the input perspective and by theejection-decreasing model which based on the output perspective.Finally,in order to findways to reduce carbon intensity fundamentally,we study the carbon intensity of energyefficiency effect by constructing the fixed effects model,and at the same time we alsoexamine the mechanism of economic growth,industrial structure,the energy structure,urba-nization level and dependence on foreign trade to the carbon intensity.Factors such aseconomic growth,industrial structure,energy structure,urbanization level and dependenceon foreign trade impede the reduction of carbon intensity obviously,but energy efficiencyhas significant acceleration effect on reducing carbon intensity.Therefore,China shouldvigorously develop energy technologies to improve energy efficiency,speed up theadjustment and optimization of industrial structure and energy structure,deepen thestructural reform of energy prices,and strive to build energy savings,less pollution emissionmodel of economic development.