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Solar radiation has a very important effect on the performance of the PV solar cell due to its variation from time to time. This paper gives a concept about how changes the solar cell performance on different parameters (Short Circuit Current ISC, Open Circuit Voltage Voc, Maximum Power Pmax, Series Resistance RS, Shunt Resistance RSh, Efficiency η, Ideality Factor N, and Saturation Current IS) with the change in irradiance intensity level in reality and the result is shown by conducting a number of experiments was used the solar panel educational bench in school laboratory in National Airspace University «KhAI», the Department of space technology and alternative energy sources with silicon PV cell manufactured by Siemens Corp. Read less