Building energy efficiency, as one of the ten major energy efficiency project, is included in"the eleventh five"program outline of national economy and social development. Whether it being realized or not has to do with the success or failure of China energy strategy, and with the sustainable development of national economy and society. For quite a long time, China government has laid particular stress on industry energy efficiency, yet not put enough emphasis on building energy efficiency, as such, building energy efficiency has fallen behind over a long period of time and has become the weakest link among the work of energy efficiency in China.On the basis of resource management theory, industry economy theory, sustainable development theory and micro-economy theory, and also based on the analysis of China building energy consumption situation and development trend, this paper probes into problems and countermeasures of building energy efficiency in China, which is of important theory value and realistic significance to promoting building energy efficiency in China. Firstly, this paper analyses both the problems in the work of China building energy efficiency and the features of building energy efficiency market, thus analyses major causes of building energy efficiency lagging behind. Secondly, this paper constructs theoretical model of building energy efficiency under market mechanism, and expounds its defining mechanism under market mechanism, and function mechanism of mandatory policy, encouraging policy and technology advance theoretically. Thirdly, by combining the above theoretical study and particular practice of China, and using the experience of other countries for reference, this paper puts forward both the overall train of thought and implementation tactics of China building energy efficiency, and also puts forwards some policy suggestions on its implementation.This paper indicates that the stagnation and backward of China building energy efficiency work is due to imperfect market mechanism in building energy efficiency field, including both market ineffectiveness caused by external economy and information asymmetry and market power deficiency as the result of irrational price mechanism. The function of market mechanism is further restricted because of China government relying more on administrative means to promote building energy efficiency than taking measures to solve the above problems. As such, considering the specific situation of our country, we should aim at making 50% energy efficiency standard universal, put emphasis on stimulating market demand of building energy efficiency, and cultivate and improve building energy efficiency market by means of accelerating heating system reform, setting up building energy efficiency sign system and implementing effective encouraging policy and etc in the near term(3-5years); while in the long term(2020), we should aim at making 65% energy efficiency standard universal, put emphasis on strengthening the ability of building energy efficiency and carry upgrading and development of building energy efficiency industry forward by means of improving standard and norm system, constructing technological guarantee system, developing energy-saving product system and supporting the construction of large group with energy-saving construction as its end product, and forming socialized cooperation system beneficial to building energy efficiency and etc.The major originality of the paper is that firstly, it constructs the theoretical model and analytical frame of building energy efficiency based on market mechanism, and expounds relationships among the three energy-saving channels of improving market mechanism, compensating external economy, and promoting industralization level, which systematizes the theory of building energy better. Secondly, it puts forward the target and implementation tactics of building energy efficiency both in the short term and in the long term, and it makes steel-structure building as the media of industry upgrading and development, which makes building energy efficiency industry development and housing industralization link up, being more directive and operative. |