Design and simulation of an optimum PV-based mini-grid at RP-Gishari college

Abstract

This thesis presents the design and simulation of a photovoltaic (PV)-based mini-grid for Gishari College, located in the Eastern Province of Rwanda. The primary goal of the study is to provide a sustainable and reliable power solution for the college by harnessing solar energy through a decentralized system. A comprehensive assessment of the solar radiations, load demand, and load profile was conducted. During the design of a mini-grid based on PV-system, the PV system’s capacity was optimized using HOMER (Hybrid Optimization of Multiple Energy Resources) software, which helped simulate various configurations, including energy generation and backup power options, to ensure continuous power supply throughout the year. The study also explores the economic feasibility of the proposed system, analyzing cost implications, potential savings of the proposed PV-based solution. The results demonstrate that the PV-based mini-grid can generate 159,869kWh to meet the college's energy needs efficiently and reduce reliance on the national grid by savins 11175$ annually. This work provides a replicable model for other educational institutions in similar contexts aiming to transition towards renewable energy systems