Design of reliable and sustainable hybrid solar PVbiogas micro-grid for off-grid rural communities in Uganda

Abstract

This project aimed to design a reliable and sustainable hybrid solar PV-biogas micro-grid for off grid rural communities in Uganda. The study used a mixed-methods approach, including a survey of energy demand in the target communities, a review of existing literature on solar PV and biogas systems, and a mathematical design analysis of the proposed microgrid. Technical analysis was then performed to design the hybrid micro-grid system, considering the integration of solar PV and biogas generator. Study results showed that the energy demand in the target communities was primarily for lighting, maize milling, and small electrical appliances like TV screens, hoofers, shaving machines and charging mobile phones. The proposed microgrid consisted of a solar PV system with a capacity of 5 KWp and a biogas generator of Kw. The solar PV system was designed to meet the energy demand of the community during the day, while the biogas system provided backup energy during periods of low sunlight and night. The study also found that the study results showed that the target communities' energy demand microgrid had significant environmental benefits, including reduced greenhouse gas emissions and improved air quality. To facilitate the deployment of hybrid solar PV-biogas micro-grids in off-grid rural communities in Uganda, the study proposes several recommendations. Firstly, partnerships should be established between government agencies, non-governmental organizations, and private sector entities to provide technical and financial support. Secondly, awareness campaigns and training programs should be conducted to educate the local community on the benefits and maintenance of the microgrid system. Furthermore, policy framework should be developed to incentive the adoption of renewable energy technologies and promote sustainable rural electrification. The study concluded that a hybrid solar PV biogas microgrid has a reliable and sustainable solution for off-grid rural communities in Uganda. The study recommended further research to be conducted to optimize the design of the microgrid and explore the potential for scaling up the technology to other communities in Uganda and beyond.