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The application of a gas-fired CCHP can effectively solve seasonal shortages of electricity and gas. To realize providing investment decision for gas-fired CCHP in Beijing, first, the paper analyses the status of gas-fired CCHP systems in Beijing; second, the technology structure and economic benefits of gas-fired CCHP systems are analyzed; third, a technical economic evaluation framework of a gas-fired CCHP is built, which analyses the cascade utilization and energy saving effects of a heat and power energy system in a gas-fired CCHP system. Analysis of the gas-fired CCHP system economy and the factors that influence the economic performance is also performed, as well as a sensitivity analysis. In addition, the paper also analyses an energy efficiency sharing model of a cooling, heating and power system that considers the grid enterprises’ economic efficiency. Finally, an empirical analysis of a trigeneration project control center in the Beijing Gas Group is carried out. Research results show that gas-fired CCHP system is good to both customers and beneficial, fuel price and electricity price will influence revenue of Gas-fired CCHP system greatly, a reasonable energy efficiency sharing ratio will help to the recovery of investment in Gas-fired CCHP. [ABSTRACT FROM AUTHOR]

As wind power resources are abundant, China’s wind power industry has entered a period of rapid growth since 2005, and constantly facing new challenges at the same time. In this paper, the general situation of China’s wind power resource and wind power industry development are introduced. On this basis, future development potential and target of wind power industry are analyzed combining with the recent introduction of the policy and the “Twelfth Five-Year Plan”. The main obstacles prevailing in the development such as grid integration, price mechanism, industry standard system, and supporting policies are discussed. In addition, strategy advice for promoting the further development of China’s wind power is proposed. In general, the development prospect of China’s wind power industry will be even brighter. [ABSTRACT FROM AUTHOR]

As the development of economy and the improvement of living standards, both power demand and power grid capacity are increasing in China. Meanwhile, power consumption structure has undergone great changes which makes the peak–valley difference of power grid is growing, and the contradiction between peaking regulation capacity with peak-load dispatching demand is more outstanding. Recently, with construction of power stations, national regulation for macro-economy and limitations to high energy-consuming enterprises, power consumption declines in low-load hours, causes thermal power units idle which is low efficiency and not environmentally friendly and these problems could be solved if there are sufficient peaking power like pumped storage station. Therefore, based on the development status of peak-load dispatching power source in China, developing pumped storage and gas-fired generation peaking units are of great realistic significance. [ABSTRACT FROM AUTHOR]

With the global environmental pollution and fossil energy shortage problems getting increasingly serious, renewable energy sources (RES) are drawing more and more attention. In China, RES are experiencing rapid development. However, because of the randomness of RES and the volatility of power output, energy storage technology is needed to chip peak off and fill valley up, promoting RES utilization and economic performance. So to speak, energy storage is the precondition of large-scale integration and consumption of RES. However, China's energy storage industry is at the exploration stage and far from commercialization. This restricts the development of RES to certain extent. For this reason, this paper will concentrate on China's energy storage industry. First, it summarizes the developing status of energy storage industry in China. Then, this paper analyzes the existing problems of China's energy storage industry from the aspects of technical costs, standard system, benefit evaluation and related policies. Finally, solutions are proposed based on the above problems to promote the sound development of China's energy storage industry. [ABSTRACT FROM AUTHOR]

With the increasingly severe global environmental problems and the decrease of the storage of the fossil energy, renewable energy sources (RES) are drawing more and more attention. In China, renewable energy generation (REG) is experiencing a rapid development; however, its investment, transmission and management remain immature and deficient compared with those of the developed countries. First, this paper summarises the developing situation of REG in China through taking the booming wind power and photovoltaic power as examples, indicating that the grid connection rate of REG has yet to be improved. Then, this paper focuses on the grid connection management mode of REG in China which includes the following aspects: operation management, organisation management and grid connection incentive policy. Third, based on the above research, this paper analyses the existing problems of the grid connection management mode of REG. Finally, a coordinated management mechanism is proposed to solve the problems impeding large-scale grid connection of REG in China, including the coordinated management mechanism of integrated planning and transmission. [ABSTRACT FROM AUTHOR]