Abstract:  ABSTRACT： Through the implementation of the real-time price projects for demand side, power company and power-retailing company can improve the safety factor for grid and reduce the risk of electricity transactions. Since the public buildings are the main participants of the real-time price project, the study on their electricity characteristics under real-time price can provide the reference for the power company and power-retailing company. This paper establishes the comfort degree utility function of building customers, the anxiety utility function and the value function of user's electricity expenditure. On this basis, this paper establishes the analysis framework of the building's real-time price response with the optimal user's comprehensive utility function. Finally, an example is given to simulate the response of a public building under real-time price. The results show that the proposed method can be used to evaluate the characteristics of public buildings response to the real-time price. 

Key words:  KEYWORDS：  real-time price, public building, response characteristic, prospect theory