Design and install PV stand alone system using 10.3 Wp thin film solar module for small appliance / Asrul Nizam Abdul Latif

A stand-alone photovoltaic system can be used to generate the needed electric energy. Since the solar modules only produce electric energy during daytime, it is necessary to store energy for the night or for cloudy days. Such storage systems mostly use rechargeable lead batteries. Three design methods have been compare and design method by Sulaiman Shaari et al., (2010) has been used to design a PV stand alone system with battery to light up the 40W of bulb for two hours. Microsoft Excel software has been used as simulation tool. Two cycles of charging and discharging process has been done. Time taken for the battery to fully charge is 13 hours. Within this period, the data collection of the charging process has been done to determine the performance of the thin film solar module with 10.3 Wp. Solar irradiance and the module temperature totally influenced the output power of the thin film solar module. The output power of the solar module is increased steadily with the solar irradiance but the output power is decreased while the module temperature got higher. The efficiency of the thin film solar module also has been calculated to determine the performance of the thin film solar module due to the solar irradiance and temperature. The efficiency of the thin film solar module at the field is 0.028 for the first and second cycle.