Abstract

The literature and research papers all show that PV (Photovoltaic) module have maximum efficiency at 25°C. However on analysing the real time data of a 5 MW (Mega Watt) PV (Photovoltaic) power plant located at Ramgarh, district Jaisalmer, India, it was found that the DC output voltage of a multicrystalline module is not maximum at 25°C, instead much higher DC voltage is obtained at 40°C ambient temperature and stable voltage is obtained only if ambient temperature is greater than about 37°C and panel temperature is greater than 50°C. DC output voltage decreases slightly with increase in panel temperature only after panel temperature crosses 52°C but the output obtained even at 68°C is much higher than that obtained at 30-35°C panel temperature roughly corresponding to 25-28°C ambient temperature. Since the power output is directly proportional to the voltage, Western Rajasthan has a great potential to become a leader in solar photovoltaic.

References

• Climate of Rajasthan, Volunteering India. www.volunteeringinindia.org/climate-of-rajasthan.htm
• Kozak, T., Maranda, W., Napieralski, A., Mey, G. D. and Vos, A. D. 2009. Influence of Ambient Temperature on the Amount of Electric Energy Produced by Solar Modules. 16th International Conference on Mixed Design of Integrated Circuits and Systems, Poland.
• Polycrystalline silicon, From Wikipedia https://en.wikipedia.org/wiki/Polycrystalline_silicon
• Didier, T. and Richmond, B. C. 2005. Review and recommendations for improving the modelling of building integrated photovoltaic systems. Ninth International IBPSA Conference Montréal, Canada.
• Mayfield, R. 2010. Photovoltaic design and installation for dummies. Wiley Publishing Inc.
• Javaid, M. A., Hassan, M., Khan, M. S. and Shaukat, S. F. 2011. Estimation of Solar Power Efficiency in Day Time at Different Temperatures. International Journal of Electrical & Computer Sciences, Vol. 11, No. 02, 48-52.
• Schwingshackla, C., Petittaa, M., Wagnera, J. E., Belluardoc, G., Moserc, D., Castellia, M., Zebischa, M. and Tetzlaff, A. 2013. Wind effect on PV module temperature: Analysis of different techniques for an accurate estimation, Energy Procedia, Vol. 40, 77–86.
• Based on data from the National Renewable Energy Laboratory (NREL) published Solar Radiation Data Manual for Flat-Plate and Concentrating Collectors for a South facing, approximately 15o tilted system, located in Los Angeles, CA.
• Chaturvedi, D. K. and Sharma, S. 2015. An experimental study and verification of the facts related to factors affecting the performance of solar PV systems. Fifth International Conference on Communication Systems and Network Technologies.
• Young, C., Thelen, J. and Nehrir, H. 2014. Design and Implementation of a Low-cost Solar Photovoltaic Experimental Station for Education Enhancement. 46th IEEE North American Power Symposium.
• Gaur, A. and Tiwari, G. N. 2013. Performance of Photovoltaic Modules of Different Solar Cells. Journal of Solar Energy. Hindawi Publishing Corporation.
• Touati, F., Massoud, A., Hamad, J. A. and Saeed, S. A. 2013. Effects of Environmental and Climatic Conditions on PV Efficiency in Qatar. International Conference on Renewable Energies and Power Quality, Bilbao (Spain), 20th to 22th March, Renewable Energy and Power Quality Journal, Vol. 11.
• Green, M. A. 2006. Third Generation Photovoltaics. Advanced Solar Energy Conversion, Springer.
• Mitavachan, H., Gokhale, A. and Srinivasan, J. 2011. A case study of 3-MW scale grid-connected solar photovoltaic power plant at Kolar, Karnataka, Performance assessment & recommendations, REPORT IISC-DCCC.
• Yaacob, M. E., Hizam, H., Khatib, T., Radzi, M. A. M., Gomes, C., Adam, M. B., Marhaban, M. H. and Elmenreich, W. 2014. Modelling of photovoltaic array temperature in a tropical site using generalized extreme value distribution, Journal of Renewable and sustainable Energy, Vol. 6, No 3.
• Dinçer, F. and Meral, M. E. 2010. Critical Factors that Affecting Efficiency of Solar Cells. Smart Grid and Renewable Energy. Vol. 1, 47-50.
• Dubey, S., Sarvaiya, J. N. and Seshadri, B. 2013. Temperature Dependent Photovoltaic (PV) Efficiency and Its Effect on PV Production in the World A Review. PV Asia Pacific Conference 2012, Energy Procedia, Vol. 33, 311–321.
• Katkar A. A., Shinde, N. N. and Patil, P. S. 2011. Performance & Evaluation of Industrial Solar Cell w.r.t. Temperature and Humidity. IJRMET, Vol. 1, No. 1.
• Skoplaki, E. and Palyvos, J. A. 2009. On the temperature dependence of photovoltaic module electrical performance: A review of efficiency/power correlations. Solar Energy, Vol. 83, 614–624.
• Pradhan, A., Ali, S. M. and Jena, C. 2013. Analysis of Solar PV cell Performance with Changing Irradiance and Temperature. International Journal of Engineering and Computer Science, Vol. 2, No. 1, 214-220.
• California Energy Commission. A Guide to Photovoltaic (PV) System Design and Installation. report, page 8, section 2.3.1 Factors Affecting Output, Standard Test Conditions. www.energy.ca.gov/reports/2001-09-04_500 -01- 020.PDF