1.Introduction
China has announced that it will adopt forceful policies and measures and strive to achieve peak carbon dioxide(CO2)emis-sions before 2030 and carbon neutrality before 2060-aims that are largely consistent with the goal to limit warming to 1.5℃[1].Achieving this target requires the deep decarbonization of China's entire economy,with a particular focus on coal-fired power plants(CFPPs).China's installed capacity of coal-fired power was estimated to be 1040 GW in 2019[2],with the CO2 emissions from CFPPs reaching 3.5 Gt,accounting for approximately 35.6%of China's total CO2 emissions[3].However,the overwhelming mag-nitude of the existing coal infrastructure makes it impossible to entirely phase out CFPPs that have operated for less than 15 years and have more than 30 years remaining in their lifetime[4].