the price of the electricity [2]. Smart meters can also help electricity users to monitor their consumption and their expense, and consequently, make the decision on which supplier they should choose, and when and how much electricity they would like to consume.Pricing mechanism is the key issue of the electricity market. Fair and reasonable electricity price can maximize social benefits through the optimal allocation of power resources. It should also allow users to choose different energy suppliers or reasonable power consumption time, which smooth out peak load to fit the intermittent characteristics of distributed generation [3-9]. At present, electricity market pricing strategies mainly include fixed price, time-of-use price [10], ladder-type price, peak-valley price, adaptive price and real-time pricing (RTP). Compared with other pricing methods, RTP is more flexible due to exploiting real-time two-way interactive information between electricity users and suppliers. Real-time communication network and smart meters in SG are preconditions to implement RTP. Through the deployment of smart meters, electricity suppliers use the real-time communication network to obtain electricity consumption data from users and analyze their consumption characteristics and pattern. Based on electricity users' consumption information, RTP mechanism is designed to guide users to comply with electricity market regulation and shift to more reasonable consumption patterns. In other words, RTP can facilitate the