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Abstract. In future, with the promulgation of the energy Internet development plan and the gradual liberalization of the power sales side, the user side will appear a large variety of user service requirements and intelligent terminal access requirements. In order to realize the dynamic balance of energy supply and demand, and meet the increasingly diversified and intelligent low-carbon power demand, it is necessary to further promote the energy Internet project practice. From the current point of the view, the economic development zone, like the Tianfu new area of Sichuan province and Qianhai area of Shenzhen, is the best starting point of the energy Internet. Therefore, the paper mainly discusses the construction of energy Internet and the profitability of system operators in the area mentioned above. Basic framework of THE energy InternetThe traditional energy planning, which is served as a basic starting point for meeting energy supply and demand, has been unable to adapt to the current economic development mode and energy structure adjustment needs. Therefore, it is a general trend to formulate the new regional energy interconnection planning based on scientific ideas. In order to save resources, realize the resources complementarity and obtain the best economic and social benefits, the paper designs the basic framework of regional energy internet.It can be seen from the figure that the basic framework of the regional energy Internet is mainly divided into four modules, including the distributed energy supply module, system network module, demand side management module and network information processing module. Each module is connected and fused by energy flow and information flow.In terms of the energy flow, in addition to the main existing centralized energy supply, regional energy interconnection also includes the distributed energy supply, such as distributed photovoltaic, heat pump and so on, which is connected with the main power grid by the micro grid. Both of them support the energy demand of the users in the region, and jointly drive the heating network. Both of them support the energy demand of the users in the region and drive the heating network.In terms of the information flow, the efficient operation of the entire regional energy Internet needs to be backed by intelligent information service platform. On the one hand, through the analysis of information processing, intelligent control functions of Internet, the scheduling problem of distributed generation; on the other hand, can realize the analysis of characteristics of demand side management and users can optimize the use of electrical properties, the use of key technologies for network users. Finally, the interaction between supply and demand is achieved. On the one hand, through the information analysis and processing and the intelligent regulation and control function, the access and scheduling problem of distributed generation is solved. On the other hand, by using the key technologies of network system, the user's power consumption char...

Abstract. The opening of the sale side of electricity market is an important goal of the new round of power system reform in China, and it is necessary to speed up the establishment and development of the electricity selling companies to achieve this goal. First of all, this paper defines the key problems, which are needed to be solved in the establishment of the sale side market, such as demand side response, optimization of users' power consumption mode, profit mode of electricity selling companies and fair competition in the market. On this basis, this paper analyzes the business of electricity selling company, from the aspects of the transition of business ideas, improving the energy efficiency level, providing integrated energy solutions and innovating business management mode; and then, the service strategies of electricity selling companies are put forward.

Abstract. This paper analyzes the concept and basic properties of urban energy Internet. In combination with the characteristics of energy trading mechanisms in urban energy Internet, the practical business models for power grid enterprises are proposed, which including development and investment of distributed energy, construction and operation of micro-grid, demand-side management services and construction of information service system. On the basis of analyzing the impact of urban energy internet development on power grid enterprises, the measures and suggestions are proposed with a view to providing reference for power grid enterprises. New business models in the Context of urban energy internetWith the intensification of global climate change and gradual depletion of traditional energy sources, shifts including low carbonization, high efficiency and intellectualization has occurred in global energy systems and especially in urban energy system. As electric power is the important secondary energy resource in energy system and power systems are key hubs to promotes harmonious utilization of fossil energy and renewable energy, an urban energy Internet based on power system has the following function: drive the revolution of energy resource, achieve energy resource allocation in a wider range and promote transformation and upgrading of urban energy to be clean, electrification, intellectualization and networked. The urban energy Internet is an electric-centered platform where interconnection, comprehensive use, optimization and share of various energy sources can be achieved. The platform has the basic properties which are multi-energy complement each other horizontally, generation-grid-load-storage coordinate vertically. The urban energy Internet also embodies the Internet characteristics including openness, interconnection, reciprocity and sharing. In urban energy Internet, the characteristics of energy trading mechanisms can be summarized from the following seven aspects: diversification of transaction subjects, diversification of trading commodities, diversification of trading decisions, transparency of transaction information, instant of transaction time, marketization of transaction management and hierarchy of transaction constraint. In the future, with the constant development of urban energy internet, the relations among transaction subjects will be more and more complex, and the change of information will accelerate. The business model of urban energy Internet will also develop from centralized comprehensive balance to partial micro-balance which based on decentralized decision and Pareto optimum.New operating models and profit margins will emerge in power supply, transmission network, clients, Internet system and other modules in urban energy Internet. The implementable business models including development and investment of distributed energy, construction and operation of micro-grid, demand-side management services and construction of information service system. Development and investment of distrib...