Good morning to all of you. For my diploma thesis I have to compare the combined production of electricity and heat from a biomass gasification unit and from a biomass combustion unit. So I would like to ask you if you know data or refer me to papers so that I can compare these 2 technologies with multi-criteria analysis. For example, which is the installation cost of each technology, which is the operating cost of each technology, what surface needs each technology, which percentage of atmospheric pollutants emits each technology and everything else you believe that it must be in the multi-criteria analysis. I have chosen a gasification unit which produces 180 KW electrical energy and 270 kw thermal energy. Thank you very much!