Most of the models applied for the energy systems design work for different objectives such as satisfying minimum system costs and minimum level of harmful gas emissions, and a set of technological, economic, environmental and social constraints. Multi dimensionality of the sustainability goal and complexity of energy systems make multicriteria and multiobjective deci- sion making (MODM) methods increasingly popular for sus- tainable energy systems. Although goal programming (GP) is one of the most powerful MODM approaches in practical deci- sion making it is rarely used in biomass to energy conversion systems design.