The use of agricultural and food processing waste is an important source of biomass fuel for energy generation in rural and remote locations. In particular, gasification of cashew nut shell has a high potential for clean electricity generation due to its relative high energy content. In this study, the techno-economic assessment of a solar photovoltaic-biomass gasification hybrid system is carried out for a case study in Nampula, Mozambique. Model results and sensitivity analysis show that this system is able to achieve competitive levelised cost of electricity when compared with diesel generators.