Linear Programming Approach of Biogas Production and Cost as an Independent Energy Source

Abstract

This study aims to optimize energy allocation for West Waru Village, a village with significant electricity demands and a biogas production system, to minimize energy costs. Two simulations were conducted to evaluate different scenarios and their outcomes. Simulation 1 focused on maximizing the utilization of biogas while adhering to production constraints, monthly energy needs, and annual production limits. The results indicated that during high-demand months (July to December), energy distribution approached the maximum production capacity, optimizing biogas usage while fulfilling energy requirements. Simulation 2 targeted the minimization of total energy costs by balancing energy sourced from biogas and PLN. The optimal solution achieved a total cost of 420,000. The simulation showed that during the first two hours of the day, energy demands were partially met by biogas, with PLN contributing the rest to fulfill the demand. Throughout the remaining hours, biogas production was zero, leading to a complete reliance on PLN. The results highlighted the feasibility and effectiveness of combining biogas and PLN energy to achieve cost savings, while suggesting potential improvements to enhance biogas production or utilization efficiency to reduce PLN dependence further. Overall, the study demonstrates that effective energy management in West Waru Village can be achieved by optimizing biogas and PLN use, maintaining cost efficiency, and ensuring the fulfillment of energy demands. Future work should focus on boosting biogas production capacity and enhancing distribution strategies to further reduce operational costs.