Integrated modeling and feasibility analysis of a rooftop photovoltaic systems for an academic building in Bangladesh

This paper presents integrated modeling and feasibility analysis of a rooftop photovoltaic system (RPS) for an academic building in Bangladesh. The average daily load is 353.63 kWh/day, and the peak load demand for the studied region is 90.85 kW. Four different configurations of 46 kW, 64 kW, 91 kW and 238 kW photovoltaic (PV) systems are designed and compared based on the financial, sensitivity and environmental benefit analysis to find out the most optimized one. The total net present cost, cost of energy, internal rate of return and payback period for the 91 kW (most optimized) system are found to be $146 317, $0.0385, 120.3% and 8.3 years, respectively. Seven sensitivity variables are utilized to investigate the system’s performance due to the variation of input variables, ensuring that the optimized system is less vulnerable than others. Besides, the proposed RPS (91 kW) for the selected region reduces the CO₂ emanation by 90 010 kg/year and has a negligible shading effect compared to the amount of electricity generation from it.