The possibility of combining Chinese certified emission reduction (CCER) method and balance method was proposed in order to improve the accuracy of carbon emission calculation for municipal solid waste (MSW) incineration. The two methods were used to calculate carbon emissions of five MSW incineration power generation projects in different regions during the crediting period,and the factors affecting carbon emissions were analyzed. Results showed that baseline emissions,project emissions and project emission reductions per ton waste were 0.26～0.40 t,0.34～0.79 t and −0.44～−0.05 t respectively in CCER method calculation. Only project emissions were calculated in balance method,ranging from 0.24 t to 0.50 t per ton waste (excluding biogenic source carbon emissions). The emission range of CCER method and balance method were 0.32～0.76 t and 0.22～0.49 t per ton waste respectively by comparing project emissions of CO2 (fossil source carbon emissions) from combustion of the two methods. The result of balance method was relatively close to the literature values. Results showed that a quite great error would happen in CCER method calculation due to the spatial and temporal fluctuations of MSW samples. Balance method was a convenient,fast and accurate method for real-time carbon emissions calculation,while MSW sampling was unnecessary during calculation. Balance method could replace the calculation of project emissions of CO2 (fossil source carbon emissions) from combustion in CCER method.
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