Research On The Symbiosis Evolvement Of Suppliers’ Market Behavior And Renewable Portfolios Standards

To overcome the three obstacles in power generation, accessing to grid, power consumption, and to promote the construction of RPS transaction system in renewable electricity industry, China put forward launching the Renewable Portfolio Standards(RPS). The effectiveness of RPS and strategies of power generation companies are inseparable. RPS implementation will influence the behavior of generation companies, and power suppliers’market behavior will in turn affect the smooth implementation of the RPS. Therefore, the research on mutual influence of generation companies’market behaviors and RPS is significant.Based on the background above, this paper studies the symbiotic evolution mechanism of generation companies’behavior and RPS. Firstly, it defines the main policy parameters of RPS, and establishes a behavior tree of thermal power firms and green power firms, therefore builds revenue functions under different situations. Secondly, the evolutionary game model of the thermal and the green is built, and strategy stabilities are discussed under different parameter settings. Then, the paper analyzes parameters sensibility by use of Simulink. Finally, the symbiotic evolutionary framework of generation companies’market behavior and RPS is built based on from the Hayek’s social dualism orders and the results from the 3rd chapter.The results show that:Firstly, Changes in policy parameters will affect the behavior of generation companies. Only reasonable quota proportion, higher unit fines, lower transaction costs and production cost of green power will promote the generation companies to trade green certificates. Secondly, government should set scientific policy parameters to stimulate green certificate trading. Take full account of benefits-cost status of generation companies, and ensure the rationality of the quota proportion. For the thermal which did not finished quota task, hard punishment is necessary, and the fine should be higher than TGC-clearing price. Release transactions information timely, simplify approval procedures and standardize trading market to reduce transaction costs. Encourage technology advances in renewable energy generation, and related incentives policies should be introduced to reduce production costs of green power. Thirdly, generation companies should optimize their strategy constantly. RPS keeps self-improvement in process of symbiotic evolution with generation companies’behavior, therefore generation companies have to adjust strategies to make the "outside rules" and "internal rules" to achieve consistency.