Monocrystalline silicon, polycrystalline silicon, microcrystalline
silicon, copper indium diselenide and cadmium telluride are commonly used as semiconductors in photovoltaic systems.
Selection of these materials is influenced by number of factors [18].
PV system consists of many components like cells, module and arrays for generating power. In addition, various means of regulating and controlling structures, electronic devices, electrical connections and mechanical devices are used for better operational efficiency.
PV systems are rated in peak Kilowatts (kWp) which is an amount of electrical power delivered by a PV system when the sun is directly overhead in a clear day [19].
Number of researches have been carried out in the PV devices to increase their efficiency since long ages ago and it is important to note that it is now said to be a fast growing industry which doubles its production every two years with an average increase of 48% since 2002.