Study On The Technology Selection And Government Policy Concerning Energy Efficiency In Buildings

In accordance with the report to the seventeenth CPC National Congress, energy efficiency in building has been included in the eleventh Five-year Plan and listed as one of the ten energy-conserving projects. Thus, energy efficiency in building has been raised to a high level in national strategy. It is obvious that the government attaches great importance to energy efficiency in building and realizes the urgency of it. China has made certain achievements in energy-saving in building. However, the progress is slow because of the lack of technical support. This thesis mainly focuses on how to choose the proper technology in consideration of energy efficiency in building.The author of this thesis studies technology selection by choosing the entry point-subjects related to energy efficiency in building. The subjects of technology selection concerning energy-efficiency in building consist of the government, the project investors and the users. As for the concrete evaluation and selection of energy-saving technology in building, the author will make a comprehensive analysis of the application, reasonableness as well as the social benefit significance of the energy efficiency technology in building.First, the author analyzes the government's selecting of energy-efficiency technology from a macro viewpoint. Theories including Life Cycle Assessment theories, Environment Economy Theory have been used to analyze the energy-efficiency influence on the environment during different steps of the technical life circle, to build streamlined life-cycle assessments and to make the government's technology evaluation index system.Second, the investor mainly selects energy-efficiency technology from the micro perspective. The key of the energy-efficiency technology lies on the investor's selection. Investors are more concerned about whether the technology can help realize the energy-efficiency target in building, whether the increase of energy-efficiency technology cost is acceptable, whether there are existing successful energy-efficiency technology application cases, whether the adoption of the energy-efficiency technology can be guaranteed by reliable human resource and material resource. In addition, the special requirements concerning the security of the construction site and environment protection are considered by the investors. They also set up energy-efficiency technology evaluation index system.Third, the author makes a qualitative analysis concerning the project investor's and the building users' choosing of energy-efficiency technology. The author points out the need to making an energy consumption determination system for the benefit of main parts (relevant government departments, the property managing departments and the building's user). The energy determination system is made on the basis of the resource consumption data gained in the process of building usage. By analyzing the relevant data, the author makes an evaluation on the effect of the energy efficiency technology in building, find out the existing problems and get the feedback in order to better carry out the energy efficiency work in building.In addition, by studying the practical cases (energy-efficiency technology transformation project) and using the technical economic evaluation methods, the author makes an empirical analysis of the energy-saving technology avalibity brought by the adoption of the present energy-efficiency technology in building. It is proved that the adoption of energy efficiency technology has great comprehensive benefit for the energy efficiency.Finally, the author discusses the development of China's energy technologies, analyzes the existing problems. The author also gives suggestions on the effectiveness of China's energy efficiency policy in building. That is, the government should promote the development of the energy efficiency work by combining both the mandatory and the encouraging policies...