In an attempt to enhance and increase the employment of PV systems, research activities are being piloted in an endeavor to gain further improvement in terms of cost, efficiency and reliability. The easiest way to overcome such challenging goals is to get benefit from photovoltaics as well as from other renewable sources capable of producing these huge amounts in a timely manner. The world would have need of utilizing around 20 TW of non-CO 2 energy to reduce the amount of CO 2 in the atmosphere by 2050. In a short time, the world energy consumption would be 10 terawatts (TW) per year, and in less than 35 years, it is expected to reach 30 TW. Such potential will offer electricity to 4.5 billion people mostly in the developed countries. The European Photovoltaic Industry Association (EPIA) reported that the production of solar energy is estimated to attain 1845 GW by 2030. By the end of 2016, cumulative global installed photovoltaic (PV) installations will outshine 310 gigawatts (GW), compared to just 40 GW at the end of 2010, and more than 69 GW in 2011 according to HIS.
