Effect of Light intensity and Temperature on Crystalline Silicon Solar Modules Parameters

It is significant to understand the effect of the light intensity and temperature on output performance of the crystalline solar modules. Therefore, it is possible to evaluate the J-V curves of solar module under various environmental conditions. This paper discuses the effect of light intensity and temperature on performance parameters of mono-crystalline and poly-crystalline silicon solar module. The experiments have been carried out under a solar simulator for various intensity levels in the range 0.21.0 Sun and 10–50C, respectively. The results of the two modules indicated that light intensity has a dominant effect on current parameters. It is found that photocurrent; short circuit current and maximum current have been increased linearly with increasing light intensity. So, concentrating system may be regarded as a best choice to enhance the power output of solar system. The power density of the mono-crystalline and poly-crystalline silicon solar module increased from 8.96 and 7.72 mW/cm to 46.72 and 40.4 mW/cm for light intensity 0.2 and 1 Sun respectively. On the other hand, it has been observed that module temperature has a dramatic effect on voltage parameters. Open circuit voltage and maximum voltage are decrease with increasing module temperature. So, the maximum power density of the mono-crystalline and poly-crystalline silicon solar module decreased from 43.4 and 48.76/cm to 36.32 and 41.88mW/cm for temperature 10C and 50C respectively. Keywords— Crystalline Silicon Solar Modules, Light Intensity, Module temperature, J-V characteristics