Science Journal of Energy Engineering

Submit a Manuscript

Publishing with us to make your research visible to the widest possible audience.

Propose a Special Issue

Building a community of authors and readers to discuss the latest research and develop new ideas.

Degradation Assessment of a Photovoltaic Plant After Several Years of Operation

This present study is an evaluation of the degradation of the electric characteristics of the photovoltaic modules of a solar power plant settled in the CERER after 3.3 years of operation. The Center of Studies and Researches on Renewable energy is an institute of Cheikh Anta Diop University of Dakar. It is situated in the district of Hann Bel Air. Since a few years; the CERER contributed a lot research of solutions to the problems of development bound to the energy and to the environment it is all the interest of this evaluation which aims at the improvement and at the planning of the photovoltaic systems. It is what explains the study of this evaluation which was proposed. Moreover the evaluation of the degradation of the solar power plant is centered on the global system, constituted by 18 polycristallins, all identical modules of type STP175P-1, connected in series. So we calculated the rates of degradation of the electric characteristics of modules after a few years of operation such as the characteristics I-V and P-V, the maximal power (Pmax), the maximal tension (Vmax), the maximal current (Imax), the tension in opened circuit (Voc), the current of short circuit (Icc) and the fill factor (FF) in the standard conditions of test (STC). The study of this global system allowed to take up respectively the rates of annual degradation of 2.01% / year, 1.69% / year, 0.34% / year, 1.1% / year and 0.9% / year for the power, the maximal tension, the maximal current, the current of short circuit, the tension in open circuit and the factor (mailman) of shape. We observed that the most degraded performances are: the maximal power, the maximal current, the current of short circuit and the fill factor; while the tension with open circuit shows no significant degradation during these 3.3 years of operation.

Characteristics, Degradation, Photovoltaic, Rates of Degradation, Standard Conditions

APA Style

Hawa Diatara Ndiath, Pierre Williams Tavarez, Serigne Thiao, Awa Mar, Amadou Tidiane Niang, et al. (2018). Degradation Assessment of a Photovoltaic Plant After Several Years of Operation. Science Journal of Energy Engineering, 6(1), 1-7.

ACS Style

Hawa Diatara Ndiath; Pierre Williams Tavarez; Serigne Thiao; Awa Mar; Amadou Tidiane Niang, et al. Degradation Assessment of a Photovoltaic Plant After Several Years of Operation. Sci. J. Energy Eng. 2018, 6(1), 1-7. doi: 10.11648/j.sjee.20180601.11

AMA Style

Hawa Diatara Ndiath, Pierre Williams Tavarez, Serigne Thiao, Awa Mar, Amadou Tidiane Niang, et al. Degradation Assessment of a Photovoltaic Plant After Several Years of Operation. Sci J Energy Eng. 2018;6(1):1-7. doi: 10.11648/j.sjee.20180601.11

Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

1. M. A. Quintana and D. L. King, T. J. McMahon and C. R. Osterwald, Commonly Observed Degradation In Field-Aged Photovoltaic Modules
2. Monto Mani, Robot Pillai, Impact of dust on solar photovoltaic (PV) performance: Research status, challenges and recommendations, Renewable and Sustainable Energy Reviews; 14(2010):3124-3131
3. E. Kaplani, Detection of Degradation Effects in Field-Aged C-Si Solar Cells through IR Thermography and Digital Image Processing, International Journal of Photo energy volume 2012, Article ID 396792, 11 pages
4. Ababacar Nd., Abderafi Ch., Abdessamad K., Cheikh M. F. K., Pape A. Nd., Vincent S.; Degradation of silicon photovoltaic modules: A literature review, Solar Energy 96 (2013):140-151
5. Farid. A. T, Mohammed. A. Al. H and Hamdy. J. B, Study of the Effects of Dust, Relative and Temperature on solar PV Performance in Doha: Comparison Between Monocrystalline and Amourphous PV, International Journal of Green Energy, 10: 7, 680-689
6. Nicoleta. S-H, Kris. D, Albert. L. V, Sarah. K, Dirk. J, Comparative Study of the Performance Of Field-Aged photovoltaic Modules Located In a hot and Humid Environment National Renewable Energy 2376-2381; 2011
7. Dirk C. J and Sarah. R. K, Photovoltaic Degradation Rate – An Analytical Review, National Renewable Energy Laboratory, 2012
8. B. H. King, J. EGranata and A. J. Luketa-Hanlin, System Long Term Exposure Program: Analysis of the First Year of Data, Sandia National Laboratories, Albuquerque, NM 87185
9. Macben. M, Nelson. T, Mutua. B, Ismael. A, Degradation Prevalence Study of Field-Aged Photovoltaic Modules Operating Under Kenyan Climatic Conditions; Science Journal of Energy Engineering 2015; 3(1):1-5
10. E. Lorenzo, Solar Electricity: Engineering of Photovoltaic System, Progensa, Sevilla, 1994
11. V. Badescu, Single Optimization Procedure for Silicon-Based Solar Cell Interconnection in a Series-Parallel PV Module, Energy Conversion and Management, Vol47, N° 9-10, pp1146-1158, 2006
12. W. De. Soto, S. A. Klein and A. Beckman, Improvement and Validation of a Model for Photovoltaic Array Performance, Solar Energy, vol 80, 78-88, 2006
13. Tao. Ma, Hongxing. Y, Lin Lu, Development of a model to simulate the performance characteristics of crystalline silicon photovoltaic modules/strings/arrays, Renewable Energy Research Group, Solar Energy 100(2014), 31-41
14. php/potentiel-solaire
15. umentation/Manual-ESL-Solar-5000-R5-eng.pdf?dl=0
16. Twu-Kei Wen, Ching-Chung Yin, Crack detection in photovoltaic Cells by interferometric analysis of electronic speckle patterns, Solar Energy Material and Solar Cells 98 (2012) 216-223
17. Gordon R. Mon+, R. J. Rose, Jr Electrochemical degradation of amorphous-silicon Proceedings of the 18th IEEE Photovoltaic Specialists Conference Las Vegas, Nevada, October 21-25, 1985
18. C. Peike, S. Hoffman, K-A. Weib, N. Bogdanski, M. Kohl, PV module degradation in the field and in the lab-how does it fit together?, Presented at the 29th European PV Solar Energy Conference and exhibition, 22-26 September 2014, Amsterdam, The Netherlands
19. B. Mitchell, J. W. Weber, M. Juhl, D. Macdonald, T. Trupke, Photoluminescence Imagin of silicon Bricks, Solid State Phenomena Vols.205-206 (2014), pp 118-127
20. Gordon R. Mon+ et al, Predincting Electrochemical Breakdown in Terrestrial photovoltaic module, Proceeding of the 17th IEEE Photovoltaic Specialists Conference Orlando, Florida, May 1-4, 1984
21. Radesk. S, Jiri. V, Martin. M, Progression of silicon Solar Cells Luminescence Diagnostic Methods Universal Journal of Electronic Engineering 2(1): 18-22, 2014
22. Sadok. M, A. Mehdaoui, Outdoor testing of photovoltaic array in the Saharan region, Renewable Energy 2008; 33:2516-24
23. Ahmad. B, Messaoud. H, Abdelkader. Ch, Mohammad. M, Salal. L, Mohammed. S, Nadir. B, Mourad. O. Ahoui. I, Analysis and evaluation of the impact of climatic conditions on the photovoltaic modules performance in the desert environment, Energy Conversion and Management 106(2015), 1345-1355
24. M. Sadok, B. Benyoucef et A. Mehdaoui, Performance et dégradation des modules en milieu saharien, Revue des Energies Renouvelables SIENR 12 Ghardaïa 2013-2012
25. Emad. A. S, E. T. El Shenawy, Abd. El-Shafy. A. Nafeh, Effect of Different Dust Accumulation on the Performance of PV Module in Egypt, International Journal of Advanced Information Science and Technology vol.44 N°.44, December 2015
26. Ababacar Nd, Cheikh M. F. Kebe, Abderafi. Ch., Papa. A. Nd, Vincent. S, Abdessamad. K, Degradation evaluation of crystalline-silicon photovoltaic modules after a few operation years in a tropical environment Solar Energy 103(2014) 70-77
27. Quintana MA, King DL, Hosking FM, Kratochvil JA, Johnson RW, Hansen BR, Dhere NG, Pandit MB. Diagnostic analysis of silicon photovoltaic modules after 20-year field exposure. Proceedings of the 28th PV Specialists Conference, Anchorage, AK, USA, 2000; 1420–1423. DOI: 10.1109/PVSC.2000.916159
28. Berman D, Faiman D. EVA browning and the time dependence of I-V curve parameters on PV modules with and without mirror-enhancement in a desert environment. Sol Energy Mat Sol Cells 1997;45:401-12
29. Osterwald CR, Anderberg A, Rummel S, Ottoson L. Degradation analysis of weathered crystalline-silicon PV modules. Proceedings of the 29th PV Specialists Conference, New Orleans, LA, USA, 2002; 1392–1395. DOI: 10.1109/PVSC.2002.1190869
30. Dirk C. Jordan and Sarah Kurtz Photovoltaic degradation rates – An analytical review, Progress in Photovoltaics: Research and application NREL/JA-5200-51664 June 2012