Comparison of Simulation Results for 25 kW Power Output Rooftop PV System

Year 2022, , 176 - 181, 30.12.2022

Taner Dindar , Vedat Esen , Ali Samet Sarkın

https://doi.org/10.36222/ejt.1175023

Cited By: 2

Abstract

The use of electrical energy from renewable energy sources has increased considerably in recent years. Photovoltaic (PV) solar energy, which is one of the renewable energy sources, takes its source from the sun, which is considered an unlimited source. With the widespread use of photovoltaic systems, some legal regulations by governments have been made for their installation. Simulation programs are used for the design, layout, technical and economic analysis of PV systems.
In this study, the design was made using the PVsyst, PV*SOL, Solarius programs, and the PVGIS website used in PV systems. The projects are designed to have an output power of 25 kW. According to the simulation results, the PVGIS website provides approximate data, since technical details cannot be entered. In the results of PVGIS and all simulation programs, it has been calculated that the system can produce 42-48 MWh of electrical energy annually. Power Ratio (PR) results of the system were in the range of 78-85%. Annual electrical energy production per installed kW has been calculated to be 1436-1635 kWh/year. It is stated that the annual saved CO2 will be 18.66-22.226 tons /year. When the simulation results are analyzed monthly, the differences between the months are remarkable. The reason for these deviations can be explained by the annual solar radiation (kWh/m2) data and databases used by the programs. It has been observed that the simulation programs consider the monthly average temperatures and sunshine durations of the region.
It is thought that there is a need to compare real-time data with simulation results in future studies. It is considered that this study will be helpful for future studies.

Keywords

Photovoltaic, Solar energy, PV simulation, Solarius, PVsyst, PVGIS, PV*SOL

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