It can be stated that there are many WTE plants which havebeen constructed in the world since 1990's. In 1990, 394 trillionBtu of energy which was produced from MSW was consumed in USA. On the other hand, some of energy demand in Japan wasprovided from 102 waste incineration plants in the end of 1991.Also there were many WTE plants in Germany in the 90's. InUnited Kingdom, the 70th report by the Royal Commissions on Environmental Pollution emphasized the importance of moderntechnology in MSW plants [2,26].Agricultural biomass is used to generate electricity in Poland. Atthe end of 2012, there are 29 agricultural biogas plants in Polandwith an average installed capacity of 1 MW [2,27].