Design and Economic Analysis of a Rooftop Photovoltaic Power Generation System for an Educational Institution in Bangladesh

Abstract

The increasing energy demand driven by population growth and urbanization in Bangladesh is primarily met through imported fossil fuels, which raises economic and environmental concerns. Rooftop Photovoltaic (PV) systems provide a sustainable solution to ensure a reliable power supply and reduce disruptions to academic activities caused by frequent power outages. This study offers the design and cost analysis of a rooftop PV power system for Bangladesh's Dhaka High School, with the goal of addressing the school's energy difficulties caused by frequent power outages. The system, which consists of a 4.8 kWp monocrystalline silicon PV array, is intended to meet the school's annual electricity demand of 17,547 kWh. The economic study shows that the installation cost is $ 14,550, which may be reduced to $ 11,640 with a 20% subsidy, lowering energy production costs from $ 0.829/kWh to $ 0.66/kWh. The system has a payback period of 8.5 years and an Return on Investment (ROI) of 86%. The study indicates the viability of incorporating renewable energy solutions into schools, resulting in long-term cost savings and environmental benefits. The findings emphasize the system's potential to reduce reliance on fossil fuels and promote sustainability, serving as a model for other educational institutions in Bangladesh and similar countries.