Preliminary exploration on low-carbon technology roadmap of China's power sector

► We identify key low-carbon technology options for China's power sector. ► We conduct comprehensive assessments on cost and reduction performances on low-carbon technologies. ► We establish a typical scenario set which reveals contributions of CO2 reduction among the key options. ► We implement a multi-scenario analysis to China's power sector based on a comprehensive power mix planning model. ► We elaborate relevant low-carbon technology roadmaps under specific scenarios, which imply corresponding optimal evolution of power mix and inform the possible emission trajectories towards 2030.