The feedstock energy analysis layer reported in Fig.10 shows that only 6.9% of chemical energy entering with municipal solid waste is waste while 70.1% is available for power and heat generation and the remaining 23% is stored in the recycled in Table 4, confirm this positive aspect. It is also evident that the amount of feedstock energy converted to electric and thermal energy decreases(from 78.1% to 62.1%) when source separation level increases from 35% to 65%, due to the reduce flow rates of unsorted recycling waste; correspondingly, the feedstock of the larger amounts of sorting and recycling residues.