Sustainable Energy Utilization Assessed Through a Multi-criteria Approach from Biogas Produced with Filter Cake

This study examines the technical, economic, social, and environmental feasibility of generating electricity from biogas derived from filter cake, an organic byproduct of industrial processes. Assuming a daily substrate availability of 20,000 kg, the estimated biogas production was 187 m³/h, yielding an electrical output of 874 kWe. Multicriteria decision analysis methods, including AHP, TOPSIS, and ELECTRE, were applied to evaluate the project. The results demonstrate strong performance in the environmental, social, and technical dimensions but reveal significant economic constraints. Situated in the Bolivian context, this research highlights the potential for energy recovery from organic waste in emerging economies while underscoring the need for policy incentives and operational scaling to ensure financial viability.