Effect of temperature variations over photovoltaic modules efficiency of different technologies at NOCT

Temperature is an important factor for efficiency of Photovoltaic (PV) - modules. Variation in temperature over different technologies of same wattages gives the different efficiency. At particular instant temperature is considered for the variation of efficiency in respect to ambient temperature over the technologies. This whole work is performed on Nominal Operating Cell Temperature (NOCT) test bed at National Institute of Solar Energy (NISE), (Gurgaon). Output at NOCT test bed data logger is considered for the determination of suitable technologies for different regions in considering the effect of the temperature. NOCT is the specified test provided in IEC-61215. The output is in terms of efficiency with respect to temperature in suitable form of the graphs. This study considering, two modules of same wattages different technologies multicrystalline (mc-Si) and monocrystalline (M-SI). The whole study finally concludes out the effect over different technologies of temperature that multi is having more temperature at particular ambient temperature hence the efficiency of the monocrystalline is more as that of multi at particular location of test. So multicrystalline is more suitable technologies for high altitude regions like Himalaya's, Andes, etc., and for a particular location at Delhi monocrystalline is more efficient. This whole study provides out most usefully information for plant installation in megawatts, according to technologies as mention for a specific region to provide maximum output.