Optimization and life cycle costing of a Hybrid power system for Waste management.

Abstract

The rising population and economic activities in Kampala have led to a surge in municipal waste production, presenting a pressing waste management challenge for the Bwaise market community. This study proposed a waste-to-energy hybrid system as a potential solution to address both the waste disposal problem and the high energy demands in the area. The system design involves integrating gasification, solar photovoltaic (PV), and national electricity grid, and it aims to meet the electrical needs of the market and surrounding households, considering their load requirements and variability. Data collection for this research involved a baseline survey, user load assessment, and the design of the gasifier-PV hybrid system. Simulation software, including HOMER PRO, PVSYST, and MATLAB, facilitated system optimization and analysis. The techno-economic analysis, based on net present cost, levelized cost of electricity, operating cost, initial cost, and renewable energy fraction, sheds light on the economic feasibility of the proposed system. The load profiles, estimated based on the number of stalls in the market and neighboring households, revealed higher peak load and average consumption for the market compared to households, reflecting its significance as a commercial hub. These findings demonstrate the potential of the waste-to-energy hybrid system to effectively address the energy needs of the bustling market community. The environmental analysis focuses on reducing greenhouse gas emissions and promoting sustainability. The research took a comprehensive approach, integrating technical, economic, and environmental aspects to optimize the waste management hybrid power system in the Bwaise market community. The study's valuable insights should benefit policymakers, practitioners, and researchers interested in sustainable waste management and renewable energy systems in developing countries. It showcases a holistic approach to address waste management and energy sustainability challenges, highlighting the potential of waste-to-energy hybrid systems as viable and environmentally responsible solutions for urban markets in developing regions.