Effect of Temperature on Solar cell performance in a Sri Lankan context.

The effect of photovoltaic panel temperature upon this efficient solar energy conversion power was investigated in actual conditions related to the Sri Lankan context. Results collected indicate that there is a direct relationship among solar insolation, output current, output voltage, panel temperature and efficiency of the photovoltaic panel. Relative humidity and solar irradiance is considered to be in steady-state condition to guarantee the variations of the panel temperature is simply due to constant same irradiance alone. It is designed to have a minimal impact on the resulting voltage of the solar module. In a steady-state controlled setting, the experimental findings indicate that perhaps the voltage level, current and its power decrease with time as the temperatures of such solar panel rises. As a consequence, the efficiency of the solar module will decline gradually. Therefore, to preserve the efficiency of a solar panel, cooling methods should be used to guarantee the panel operates within the optimum temperature. Therefore, the necessity to develop viable methods to reduce the functioning temperature of the PV cells is essential. According to the manufacture standards, the peak efficiency of a PV cell indicates at 250C temperature. However, these solar cells are rated to perform their peak efficiency between 15 0C and 35 0C. In this paper we have assessed the importance , effectivity and suitability of using Solar Panels as a renewable alternative.