Research On Clean Energy Power In Grid Economic Externalities And Power Price Formation Mechanism

In recent years, clean energy power in our country is developing rapidly and getting significant achievements, but it is facing with series problems,such as hard to get in grid and high electric price level. In order to promote China clean energy power sustainable development, this paper discussed the relations between power grid economic externality and price formation mechanism from the externality quantification and mechanism design. Considering the externality of China clean energy power, it put forward the corresponding suggestion about mechanism design, which could reduce obstacles for clean energy power development.First, combinated clean energy generation and network characteristics, it clarified economic externality of general power companies, power grid companies, economy society and the power users by external theory, series of externalities quantitative indicators were extracted, a clean energy power generation and network externalities system was built.Based on the China wind power development during2006-2010,this system was vertified. Then, it reviewed the course of clean energy price formation mechanism, focusing on wind power, nuclear power and the price formation mechanism and the development status. The basic features and shortcomings of clean energy price formation mechanism was summarized.Second, by the price transmission, comprehensive evaluation and structural models theories, the structural model was constructed to measure the effectiveness of mechanisms to achieve the desired objectives, is stable, if the implementation of the validation model. And the effectiveness of price subsidies for renewable energy policy was analysis by the model.Finally, this paper proposed the general and specificity principles of mechanism,it analyzed and clean energy for the formation of the different stages of development near power, long-term price formation mechanism.The results show that the development of clean energy in China has brought significant economic and social benefits, such as the economic benefits of wind power generation reached263.19billion yuan during2006-2010. But it will also directly affect the economic interests of the principal, resulting in economic costs about102.84billion yuan. Meanwhile, the current renewable energy price subsidy policy is effective, but it also needs to continue to improve and reduce the negative economic externalities.