Decomposition on Energy Consumption per GDP Based on Factors Substitution

By applying factors substitution analysis, energy consumption per GDP is decomposed into the influential portion of three-industrial energy consumption per added value, the influential portion of industrial structure and the influential portion of energy consumption for living per GDP. Taking Guangdong as an example, the paper analyzes the data from 1990 to 2006, the research shows that it is the increase of the secondary industrial energy efficiency that motivate the decrease of energy intensity in Guangdong. However, the change of industrial structure influences the energy intensity, and the energy consumption for living influences a little. Thus, it is critical to keep on optimizing the industrial structure, to support key industries for the improvement of energy-saving technology so that the decrease of energy consumption could be realized in the future.