Practical Evaluation of Solar Irradiance Effect on PV Performance

Majid Shahatha Salim, Jassim Mohammed Najim, Salih Mohammed Salih


The sun radiation has very important effect on the performance of photovoltaic (PV) solar modules due to its variation from time to time. In this paper, the performance of Solara®-130 PV module will be evaluated practically by using the solar model tester (SMT). The existing SMT can generate variable solar irradiance from 100 w/m2 up to 1050w/m2. The I-V and P-V curves are plotted automatically via software controlling program on the SMT. Different parameters are obtained from the SMT like: VOC, ISC,Vpm, Ipm, Rs, Rsh and fill factor. The results can be used for plotting the relation between the solar irradiances (G) and the corresponding short circuit currents (ISC), then the relation between G-I can be used for measuring the solar irradiance based on the short circuit current in that curve, which means instead of using the PV module for generating electricity, it can be used for measuring the sun radiation instead of using the Pyranometer device.


Solar model tester; Solara®-130; Pyranometer; Solar irradiance; RERC

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Adams, W. G., & Day, R. E. (1876). The action of light on selenium. Proc. Roy. Soc. London Ser. A , p.113.

Arjyadhara, P., Ali, S. M., & Chitralekha, J. (2013). Analysis of solar PV cell performance with changing irradiance and temperature. International Journal Of Engineering and Computer Science, 2(1), 214-220.

Carlson, D. E., & Wronski, C. R. (1976). Amorphous silicon solar cell. Applied Physics, 28, 671.

Chapin, D. M., Fuller, C. S., & Pearson, G. L. (1954). A new silicon p-n junction photocell for converting solar radiation into electrical power. Journal of Applied Physics, 25, 676-677.

Gwinyai, D. (2008). Modeling of photovoltaic systems (Unpublished master’s thesis). The Ohio State University.

Patel, H. (2008). Maximum power point tracking scheme for PV systems operating under partially shaded conditions. IEEE Transactions on Industrial Electronics, 55(4), pp.1689-1698.

Renewable Energy Policy Network for the 21st Century (REN21). (2010). Renewable 2010 global status report. Deutsche Gesellschaftfür Technische Zusammenarbeit (GTZ) GmbH, 19.

Review and comparison of different solar energy technologies. (2011, August). Global Energy Network Institute. Retrieved from http:// /globalenergy.

Salih, S. M., Salih, F. F., Hasan, M. L., & Bedaiawi, M. Y. (2012). Performance evaluation of photovoltaic models based on a solar model tester. I. J. Information Technology and Computer Science, (7), 1-10.

Tina, G. M., Arcidiacono, F., & Gagliano, A. (2013). Intelligent sun-tracking system based on multiple photodiode sensors for maximization of photovoltaic energy production. Mathematics and Computers in Simulation, 91, 16-28.

Xiao, W., Ozog, N., & Dunford, W. G. (2007). Topology study of photovoltaic interface for maximum power point tracking. IEEE Transactions on Industrial Electronics, 54(3), pp.1696-1704.



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