The results of the preliminary methodology used in this work are presented in Table 1 and further discussed. The calculated total annual energy yield for the three conversion processes considered was 63.648 kWh/year of thermal energy, 50.971 Nm3/year of syngas and 7.843,773 Nm3/year of biogas. Direct combustion and gasification of pig manure would account for about 13% of thermal energy needs of the farm, with the added benefit of electricity production for the case of gasification (6% of total demand). Anaerobic digestion has the highest potential and constitutes the best option for on farm energy production. The calculated potentials clearly demonstrate that energy production from pig manure can have a significant impact on the energy budget at a farm level in Portugal.