| Passive house is a science and technology energy-saving building that combines high living comfort and ultra-low energy consumption.Promoting passive house is one of the important ways to reduce building energy consumption and achieve energy conservation and emission reduction in China.Passive houses started late in China's development.The development of various regions is not uniform,and areas with lagging development do not have corresponding incentives.This article takes Changsha as an example,from the perspective of the local government,through the research on the regional promotion of passive houses,analyzes the dynamic factors and barrier factors of passive houses in Changsha,and proposes regional incentive measures.Firstly,identify the main incentive methods through the inventory of passive house incentives in each region;take the passive house project of Zhuzhou,Hunan Province as a typical case analysis;understand the status and characteristics of the real estate market in Changsha through in-depth expert interviews,and conclude that the passive house in Changsha Obstacles to development,dynamic factor,and incentives based on the characteristics of Changsha's regional markets.The research shows that the passive resistance of the passive house in the Changsha market coexists with the potential.The promotion of the passive house should follow the Changsha market characteristics and property attributes.Secondly,the main interests of the passive house promotion are analyzed and their stages of development are divided.From the perspective of local government,the model of evolutionary game under the regional promotion of passive house is constructed to analyze the game relationship between local government and developers,local government and home buyers.Using Matlab to simulate the results of evolutionary game,according to the simulation results to develop incentives for developers and home buyers.Research shows that the government's cost investment is not as good as possible,and solving the incremental cost issue is still the most effective way to motivate developers and buyers.Finally,using the principal-agent theory,the incentive model of the initial stage of passive house promotion was established and the corresponding incentive measures were designed.The passive house development model in Changsha was established through system dynamics method,and the simulation of the three major incentive policies of economy,priority conditions and technology were carried out using Vensim software.The research shows that the “principal-agent”incentive model under the supervision of the government at the initial stage is efficient,and at the same time,it should focus on incentives and economic incentives for priority conditions.The rapid development stage focuses on economic incentives,and the whole process should pay attention to technology incentives.From the perspective of local government,this paper comprehensively analyzes the development of passive house in Changsha from the three dimensions of regional market characteristics,interest subjects,and development stage,and draws regional incentive measures for passive house in Changsha,and it has some practical and reference significance for the studies in regional incentives of passive house. |
