Based on the relevant planning objectives,life-cycle emission reduction capacities and costs of eight categories of emission reduction technology of China's power sector are analyzed.The results indicate that the total emission reduction capacity amounts to 2099.0–2070.3 MtCO2e.The emission reductions generated by hydropower and nuclear power are the biggest,accounting for 62.90% to 63.34% together.The total cost is projected to be 330.76 billion RMB.The lowest cost,by hydropower,is 783.0 billion RMB,while ...