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EVALUATING THE IMPACT OF TEMPERATURE ON PHOTOVOLTAIC EFFICIENCY USING PVCASE SOFTWARE
Abstract
This paper focuses on analyzing the behavior of a photovoltaic system installed on a selected building, using the PVcase software to evaluate the influence of temperature on energy performance. The study simulates a typical summer day, comparing the operation of photovoltaic panels during two distinct periods: in the morning, when the ambient temperature is lower, and at midday, when the temperature reaches its peak. Through these simulations, variations in voltage, current, and generated power are determined, as these parameters are directly dependent on temperature conditions and solar irradiance levels. The analysis shows that at lower temperatures, the output voltage of the photovoltaic cells is higher, while the current is slightly reduced. Conversely, at higher temperatures, the current increases but the voltage decreases, which ultimately affects the overall system efficiency. Using PVcase enables a realistic representation of panel placement on the roof, optimal orientation, and potential shading losses. The results emphasize the importance of considering temperature variations during the design and sizing stages of photovoltaic installations in order to optimize energy performance and improve the efficiency of solar systems integrated into urban environments.
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