非水可再生能源电力消纳责任权重划分下的全国绿证中长期跨省交易测算分析

Due to the serious global ecological and energy problems caused by the overuse of fossil fuels, the world is thus actively exploiting and utilizing renewable energy for electrical power generation. In order to promote the integration of new energy resources and relieve the pressure of financial subsidies, the Chinese government has introduced renewable portfolio standard (RPS) and green certificate policies. This paper establishes a long-term secondary trading model of RPS considering the stochastic renewable energy nature. For the curse of dimensionality from the large number of possible scenarios, the Lagrange dual relaxation method is employed to decouple the model in the sense of scenarios that can be handled in parallel. Finally, the provincial responsibility is considered in this paper and the volumes of inter-provincial green certificate transactions are calculated, where the responsibility weight for non-water renewable energy integration in China is derived from the practical data. The results show the trading of non-water renewable energy flow under the RPS, and indicate that the liberalization of the second trade will play a great role in promoting the accommodation of non-water renewable energy, which is conducive to the implementation of the quota system and the green certificate system.