Apparent Potential Of Energy Saving And Emission Reduction Analysis Based On Dea Model

Energy saving and emission reduction is a compulsory and unavoidable task for the governments at all levels. But how to fulfill the target at the phase of frequently environmental pollution incident along with continuously rapid economic growth and where to start with are always confusing the government officials.Apparent potential of energy saving and emission reduction (AP-ESER) is defined as the gap between the reality and the advanced level, which reflects the potential improvement space of energy saving and emission reduction in a region and provides instructions for policy-making. It is of great significance for us to expand in-depth study of analysis system construction.But to make sure the system is feasible when designing the analytical method for China, the following terms must be taken in consideration based on the real situation:first, the regional differences among provinces; second, the feature of basic data. Constructing a localized AP-ESER analysis system to meet the needs of decision-making tools for the government is crucial.The study chooses the provincial AP-ESER as the proposition. An AP-ESER analysis system is established based on non-parametric DEA. The constructive issues of our work are as follow.(1) Introducing DEA model into the system, to avoid the influences of inaccurate and regional disparities of basic data.(2) In consideration of the unavailability of the output data of pollution, we take pollution control fee index as an input index in apparent potential of emission reduction analysis system. And we also designed a pollutant emission index in order to coordinate the contradiction of pollution output and GDP.(3) We seek the key factors of energy saving and emission reduction of every province in the light of the idea of decision making unit optimization and express them in a visual pattern.This study investigates30provinces in China as samples for empirical research. Combining with K-means clustering method, GIS special labeling method and radar graphic method, the main results and conclusion of the analysis system are stated as below:(1) The AP-ESER analysis system can measure the AP-ESER of every province under the situation that the basic data is not integrated in China.(2) Taking pollution control fee index as an input index into apparent potential of emission reduction analysis and constructing an independent apparent potential of emission reduction analysis system can effectively avoid the contradiction of adjusting emission and GDP output.(3) The resoult of the analysis system can provide guidance for decision-making of every province successfully proved by the followings:a. There are obviously regional differences of provincial AP-RSER in China. Eastern and southeastern provinces are economically developed; meanwhile the status of energy saving and emission reduction looks satisfied. The energy consumptions in most western provinces are lower, which means that their energy saving and emission reduction tasks are not heavy. The provinces faced with most challenging duty of energy saving and emission reduction are located in the southwestern.b. The energy saving and emission reduction policies musttargeted because the AP-ESER and key factors of energy saving and emission reduction in each province are different.c. Provinces like Hebei, Neimenggu, Shanxi, Xinjiang should draw their attentions mainly on energy utilization efficiency promotion while provinces like Fujian, Hubei should focus on industry restructuring. Provinces that under large pressure of energy consumption increase are Anhui, Hebei, Hunan, Sichuan, Guizhou. Tianjin, shanghai, jiangsu, zhejiang should prioritize on SO2emission reduction.