Abstract:

This paper defines energy output and input provinces in China, and adopts DEA method to measure economic and environmental performance of energy consumption and energy saving potential for the energy output and input provinces from 2000 to 2010. The causes and characteristics of energy consumption performance are analyzed. The energy consumption performance of energy output provinces is compared with that of energy input provinces. Then, this paper uses the Malmquist index model to examine the changing trend of economic and environmental performance of energy consumption for the energy output and input provinces from 2000 to 2010. Finally, we discuss the strategies for promoting energy consumption performance of energy output and input provinces. The results show that, energy output provinces failing to reach optimal energy consumption performance are mainly restricted by scale efficiency, while energy input provinces are restricted by scale efficiency and pure technological efficiency. Energy consumption economic performance improvement of energy output provinces lags behind that of energy input provinces, but energy consumption environmental performance improvement of energy output provinces is better than that of energy input provinces. Technological progress is key to a changing trend of energy consumption performance. Half of the energy output provinces and most of the energy input provinces have input redundancy, and the input redundancy based on environmental output is much higher than that based on economic output, especially for the energy input provinces.

Key words: DEA and Malmquist index methods, major energy output and input provinces, economic and environmental performance of energy consumption, changing trend, energy saving potential, China