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Behavior of Four Solar PV Modules with Temperature Variation

This paper presents a behavior and performance comparison of four different photovoltaic PV modules: mono-crystalline Silicon, poly-crystalline Silicon, amorphous Silicon and Cupper Indium Gallium diselenide (CIGS) under Iraqi climate conditions of Baghdad city. Temperature influence on the solar modules electric output parameters was investigated experimentally. the temperature coefficients of open circuit voltage, short circuit current and maximum power output for the four modules was calculated. These temperature coefficients are important for all systems design and sizing. Two mathematical models were implemented to extract the governing parameters of the PV modules. A detailed explanation for the temperature influence on the PV module parameters is presented. The results showed that the amorphous silicon and CIGS modules perform better than the crystalline modules in high operating temperature.