V-Trough Concentrator with Back Surface Cooling for Rooftop Photovoltaic System

The ever increasing demand for energy and rapid raise in global pollution levels has driven the energy generating sectors towards the search for more sustainable and eco-friendly methods to generate it. Solar energy is the best potential candidate to drive the global energy demand as well as to curb the pollution levels in earth. The photo voltaic and solar thermal systems are the widely developed present technologies to extract the solar energy for the use of mankind. The photo voltaic systems are widely employed around the world due to its capability of converting the available solar energy into the electrical energy which is the most flexible energy available currently on earth. But the commercial adoption of photo voltaic systems on a wide scale is still dented by the limitation of their lower efficiencies. Hence the methods for improvement in efficiency is on focus to improve the economics of these systems. Apart from the power enhancement (for improving the efficiency), other parameters like open circuit voltage, short circuit current, fill factor are also important to consider in the technical point of view viz., for inverter & inter connection with grid systems, performance assessment. In this present work the variation in the above mentioned parameters with the provision of V-trough concentrator arrangement for a module under consideration along with back surface cooling provision is analyzed through the day. Fill factor and efficiency variations were simulated and presented along with practical results.