Target decomposition model for renewable energy generation based on dynamic cost curves

To resolve the problem how to combine the national target with the provincial target of renewable energy generation, a target decomposition model for renewable energy based on dynamic cost curve was proposed based on China's reality. The static cost curves in renewable energy sector were created. And then, the dynamic cost curves of renewable energy were generated based on the technologies progress and externalities of renewable energy. Based on the target's assumptions of renewable energy, it can be decomposed in various regions and various technologies by the target decomposition model. Morever, the priority development regions and the priority development technologies can be given. To verify the correctness and validity of the target decomposition model, as a case, the renewable energy targets of various regions and technologies in Fujian province were calculated by the target decomposition model. In 2025, Total power capacity would be up to 23.58 GW, the carbon reduction would be to 87.2×10⁶ t/a. In Fuzhou, Zhangzhou, Quanzhou and Ningde city, the economic capacity of renewable energy generation were 4350, 310, 3500 and 3 660 MW, respectively.