The main objective of this study is to evaluate the seasonal performance of 20 MW solar power plants in Senegal. The analysis revealed notable seasonal variations in the performance of all stations. The most significant yields are recorded in spring, autumn and winter, with values ranging from 5 to 7.51 kWh/kWp/day for the reference yield and 4.02 to 7.58 kWh/kWp/day for the final yield. These fluctuations are associated with intense solar activity during the dry season and clear skies, indicating peak production. Conversely, minimum values are recorded during the rainy season from June to September, with a final yield of 3.86 kWh/kW/day due to dust, clouds and high temperatures. The performance ratio analysis shows seasonal dynamics throughout the year with rates ranging from 77.40% to 95.79%, reinforcing reliability and optimal utilization of installed capacity. The results of the capacity factor vary significantly, with March, April, May, and sometimes October standing out as periods of optimal performance, with 16% for Kahone, 16% for Bokhol, 18% for Malicounda and 23% for Sakal. Total losses from solar power plants show similar seasonal trends standing out for high loss levels from June to July, reaching up to 3.35 kWh/kWp/day in June. However, using solar trackers at Sakal has increased production by up to 25%, demonstrating the operational stability of this innovative technology compared with the plants fixed panel. Finally, comparing these results with international studies confirms the outstanding efficiency of Senegalese solar power plants, other installations around the world.
KeywordsPerformance StudyPhotovoltaic Power PlantSeason VariationsSenegal
Hansen, K., Breyer, C. and Lund, H. (2019) Status and Perspectives on 100% Renewable Energy Systems. Energy , 175, 471-480. https://doi.org/10.1016/j.energy.2019.03.092
Choudhary, P. and Srivastava, R.K. (2019) Sustainability Perspectives—A Review for Solar Photovoltaic Trends and Growth Opportunities. Journal of Cleaner Pr o duction , 227, 589-612. https://doi.org/10.1016/j.jclepro.2019.04.107
REN21 (2017) Global Overview. https://www.ren21.net/gsr-2017/chapters/chapter_01/chapter_01/
REN21 (2020) Renewables 2020 Global Status Report. https://www.ren21.net/gsr-2020
IRENA (2020) The International Renewable Energy Agency, Solar PV in Africa: Costs and Markets, 2016. https://www.irena.org
Lu, H., Cai, R., Zhang, L.Z., Lu, L. and Zhang, L. (2020) Experimental Investigation on Deposition Reduction of Different Types of Dust on Solar PV Cells by Selfcleaning Coatings. Solar Energy , 206, 365-373. https://doi.org/10.1016/j.solener.2020.06.012
Renewable Energy Policy Network for the 21st Century (REN21) (2016) Renewables 2017 Global Status Report. Paris.
Bajpai, P. and Dash, V. (2012) Hybrid Renewable Energy Systems for Power Generation in Stand-Alone Applications: A Review. Renewable and Sustainable Energy Reviews , 16, 2926-2939. https://doi.org/10.1016/j.rser.2012.02.009
Kumar, M. and Kumar, A. (2017) Performance Assessment and Degradation Analysis of Solar Photovoltaic Technologies: A Review. Renewable and Sustainable Energy Reviews , 78, 554-587. https://doi.org/10.1016/j.rser.2017.04.083
Attari, K., Elyaakoubi, A. and Asselman, A. (2016) Performance Analysis and Investigation of a Grid-Connected Photovoltaic Installation in Morocco. Energy Reports , 2, 261-266. https://doi.org/10.1016/j.egyr.2016.10.004
De Azevedo Dias, C.L., Branco, D.A.C., Arouca, M.C. and Legey, L.F.L. (2017) Performance Estimation of Photovoltaic Technologies in Brazil. Renewable Energy , 114, 367-375. https://doi.org/10.1016/j.renene.2017.07.033
Sidi, C.E.B.E., Ndiaye, M.L., El Bah, M., Mbodji, A., Ndiaye, A. and Ndiaye, P.A. (2016) Performance Analysis of the First Large-Scale (15MW p ) Grid-Connected Photovoltaic Plant in Mauritania. Energy Conversion and Management , 119, 411-421. https://doi.org/10.1016/j.enconman.2016.04.070
Wang, H., Muñoz-GarcíA, M.A., Moreda, G.P. and Alonso-GarcíA, M.C. (2017) Seasonal Performance Comparison of Three Grid Connected Photovoltaic Systems Based on Different Technologies Operating under the Same Conditions. Solar Energy , 144, 798-807. https://doi.org/10.1016/j.solener.2017.02.006
De Lima, L.C., De Araujo Ferreira, L. and De Lima Morais, F.H.B. (2017) Performance Analysis of a Grid Connected Photovoltaic System in Northeastern Brazil. Energy for Sustainable Development , 37, 79-85. https://app.dimensions.ai/details/publication/pub.1083906325
Nouar, A. (2020) Performance Analysis of a 20 MW Grid-Connected Photovoltaic Installation in Adrar, South of Algeria. In: Harrou, F. and Sun, Y., Eds., Advanced Statistical Modeling , Forecasting , and Fault Detection in Renewable Energy Systems , IntechOpen, London, 85. https://doi:10.5772/intechopen.89511
Mpholo, M., Nchaba, T. and Monese, M. (2015) Yield and Performance Analysis of the First Grid-Connected Solar Farm at Moshoeshoe I International Airport, Lesotho. Renewable Energy , 81, 845-852. https://doi.org/10.1016/j.renene.2015.04.001 https://linkinghub.elsevier.com/retrieve/pii/s0960148115002815
Congedo, P.M., Malvoni, M., Mele, M. and Degiorgy, M.G. (2013) Performance Measurements of Monocrystalline Silicon PV Modules in Southeastern Italy. Energy Conversion and Management , 68, 1-10. https://doi.org/10.1016/j.enconman.2012.12.017 https://linkinghub.elsevier.com/r trieve/pii/s0196890413000022
Satpathy, P.R., Aljafari, B., Thanikanti, S.B. and Madeti, S.R.K. (2023) Electrical Fault Tolerance of Photovoltaic Array Configurations: Experimental Investigation, Performance Analysis, Monitoring and Detection. Renewable Energy , 206, 960-981. https://doi.org/10.1016/j.renene.2023.02.103
Raj, R.D.A. and Naik, K.A. (2023) Novel Shade Dispersion Techniques for Reconfiguration of Partially Shaded Photovoltaic Arrays. Smart Grids and Sustainable Energy , 8, Article No. 5. https://doi.org/10.1007/s40866-023-00163-4
Alkan, S. and Ates, Y. (2023) Pilot Scheme Conceptual Analysis of Rooftop East-West-Oriented Solar Energy System with Optimizer. Energies , 16, Article 2396. https://doi.org/10.3390/en16052396
Anang, N., Azman, S.S.N., Muda, W.M.W., Dagang, A.N. and Daud, M.Z. (2021) Performance Analysis of a Grid-Connected Rooftop Solar PV System in Kuala Terengganu, Malaysia. Energy and Buildings , 248, Article 111182. https://doi.org/10.1016/j.enbuild.2021.111182
Hüttl, B., Gottschalk, L., Schneider, S., Pflaum, D. and Schulze, A. (2019) Accurate Performance Rating of Photovoltaic Modules under Outdoor Test Conditions. Solar Energy , 177, 737-745. https://doi.org/10.1016/j.solener.2018.12.002
Okello, D., Van Dyk, E.E. and Vorster, F.J. (2015) Analysis of Measured and Simulated Performance Data of a 3.2kWp Grid-Connected PV System in Port Elizabeth, South Africa. Energy Conversion and Managemen t, 100, 10-15. https://doi.org/10.1016/j.enconman.2015.04.064
Hajjaj, C., Merrouni, A.A., Bouaichi, A., Benhmida, M., Sahnoun, S., Ghennioui, A. and Zitouni, H. (2018) Evaluation, Comparison and Experimental Validation of Different PV Power Prediction Models under Semi-Arid Climate. Energy Conversion and Managemen t, 173, 476-488. https://doi.org/10.1016/j.enconman.2018.07.094
Li, C. (2018) Comparative Performance Analysis of Grid-Connected PV Power Systems with Different PV Technologies in the Hot Summer and Cold Winter Zone. International Journal of Photoenergy , 2018, Article ID: 8307563. https://doi.org/10.1155/2018/8307563
Fatima, L.H., Ndiaye, M.L., Usbeck, A.K. and Aidara, M.C. (2021) Performance Analysis of the 23 MWp Grid Connected Photovoltaic Plant in Diass Senegal. I n ternational Journal of Physical Sciences , 16, 115-122. https://doi.org/10.5897/ijps2021.4953
The ECOWAS Centre for Renewable Energy and Energy Efficiency (2018) National Action Plan for Renewable Energies, Senegal Period [2015-2020/2030] as Part of the Implementation of the ECOWAS Renewable Energy Policy (PERC). http://www.ecreee.org
Niang, S.A.A., Drame, M.S., Gueye, A., Sarr, A., Toure, M.D., Diop, D., Ndiaye, S.O. and Talla, K. (2023) Temporal Dynamics of Energy Production at the Taïba Ndiaye Wind Farm in Senegal. Discover Energy , 3, Article No. 6. https://doi.org/10.1007/s43937-023-00018-0
Drame, M.S., Ceamanos, X., Roujean, J.L., Boone, A., Lafore, J.P., Carrer, D. and Geoffroy, O. (2015) On the Importance of Aerosol Composition for Estimating Incoming Solar Radiation: Focus on the Western African Stations of Dakar and Niamey during the Dry Season. Atmosphere , 6, 1608-1632. https://doi.org/10.3390/atmos6111608
Drame, M.S., Bilal, B.O., Camara, M., Sambou, V. and Gaye, A. (2012) Impacts of Aerosols on Available Solar Energy at Mbour, Senegal. Journal of Renewable and Sustainable Energy , 4, Article 013105. https://doi.org/10.1063/1.3682078
Vasisht, M.S., Srinivasan, J. and Ramasesha, S.K. (2016) Performance of Solar Photovoltaic Installations: Effect of Seasonal Variations. Solar Energy , 131, 39-46. https://doi.org/10.1016/j.solener.2016.02.013
Aidara, M.C., Ndiaye, M.L., Mbaye, A., Sylla, M., Ndiaye, P.A. and Ndiaye, A. (2018) Study of the Performance of a System for Dry Cleaning Dust Deposited on the Surface of Solar Photovoltaic Panels. International Journal of Physical Sciences , 13, 16-23. https://doi.org/10.5897/ijps2017.4701
Niang, S.A.A., Drame, M.S., Gueye, A., Sarr, A., Toure, M.D., Nebon, B., Talla, K., et al . (2023) Analysis and Simulation of Six Solar Power Plants Seasonal Production in Senegal, West Africa. Modeling Earth Systems and Environment , 10, 1543-1554. https://doi.org/10.1007/s40808-023-01908-x
Innovent (2023) Sakal Solar Power Plant. https://www.lendosphere.com/les-projets/financez-les-panneaux-solaires-de-sakal-centrale-d
International Electrotechnical Commission (IEC) (2016) IEC TS 61724-3 Edition 1.0 2016-07. Photovoltaic System Performance E Part 3: Energy Evaluation Method Color.
IEA-PVPS (2018) Photovoltaic Module Energy Yield Measurements: Existing Approaches and Best Practice.
Ferrada, P., Araya, F., Marzo, A. and Fuentealba, E. (2015) Performance Analysis of Photovoltaic Systems of Two Different Technologies in a Coastal Desert Climate Zone of Chile. Solar Energy , 114, 356-363. https://doi.org/10.1016/j.solener.2015.02.009
Al-Otaibi, A., Al-Qattan, A., Fairouz, F. and Al-Mulla, A. (2015) Performance Evaluation of Photovoltaic Systems on Kuwaiti Schools’ Rooftop. Energy Conve r sion and Managemen t, 95, 110-119. https://doi.org/10.1016/j.enconman.2015.02.039
Shiva Kumar, B. and Sudhakar, K. (2015) Performance Evaluation of 10 MW Grid Connected Solar Photovoltaic Power Plant in India. Energy Reports , 1, 184-192. https://doi.org/10.1016/j.egyr.2015.10.001
Marion, B., et al ., (2005) Performance Parameters for Grid-Connected PV Systems. Conference Record of the Thirty - First IEEE Photovoltaic Specialists Conference , 2005, Lake Buena Vista, 3-7 January 2005, 1601-1606. https//doi.org/10.1109/pvsc.2005.1488451
Dierauf, T., Growitz, A., Kurtz, S., Cruz, J.L.B., Riley, E. and Hansen, C. (2017) Weather-Corrected Performance Ratio. National Renewable Energy Laboratory (NREL), Denver. https://www.nrel.gov/docs/fy13osti/57991.pdf
Ayompe, L.M., Duffy, A., McCormack, S.J. and Conlon, M. (2011) Measured Performance of a 1.72kw Rooftop Grid Connected Photovoltaic System in Ireland. Energy Conversion and Managemen t, 52, 816-825. https://doi.org/10.1016/j.enconman.2010.08.007
Allouhi, A., Saadani, R., Kousksou, T., Saidur, R., Jamil, A. and Rahmoune, M. (2016) Grid-Connected PV Systems Installed on Institutional Buildings: Technology Comparison, Energy Analysis and Economic Performance. Energy and Buil d ings , 130, 188-201. https://doi.org/10.1016/j.enbuild.2016.08.054
Neher, I., Buchmann, T., Crewell, S., Evers-Dietze, B., Pfeilsticker, K., Pospichal, B., Schirrmeister, C. and Meilinger, S. (2017) Impact of Atmospheric Aerosols on Photovoltaic Energy Production Scenario for the Sahel Zone. Energy Procedia , 125, 170-179. https://doi.org/10.1016/j.egypro.2017.08.168
Dubovik, O., Holben, B., Eck, T.F., Smirnov, A., Kaufman, Y.J., King, M.D., Tanré, D. and Slutsker, I. (2002) Variability of Absorption and Optical Properties of Key Aerosol Types Observed in Worldwide Locations. Journal of the Atmospheric Sciences , 59, 590-608. https://doi.org/10.1175/1520-0469(2002)059 2.0.CO;2
Drame, M.S., Diop, D., Talla, K., Diallo, M., Ngom, B.D. and Nebon, B. (2021) Structural and Physicochemical Properties of Dust Collected on PV Panels Surfaces and Their Potential Influence on These Solar Module’s Efficiency in Dakar, Senegal, West Africa. Scientific African , 12, Article e00810. https://doi.org/10.1016/j.sciaf.2021.e00810
Diop, D., Drame, M., Diallo, M., Malec, D., Mary, D. and Guillot, P. (2020) Modelling of Photovoltaic Modules Opical Losses Due to Saharan Dust Deposition in Dakar, Senegal, West Africa. Smart Grid and Renewable Energy , 11, 89-102. https://doi.org/10.4236/sgre.2020.117007
Romero-Fiances, I., Muñoz-Ceron, E., Espinoza-Paredes, R., Nofuentes, G. and De La Casa, J. (2019) Analysis of the Performance of Various PV Module Technologies in Peru. Energies , 12, Article 186. https://doi.org/10.3390/en12010186
Bouniol, D., Couvreux, F., Kamsu-Tamo, P.H., Leplay, L., Guichard, F., Favot, F. and O’Connor, E.J. (2012) Diurnal and Seasonal Cycles of Cloud Occurrences, Types, and Radiative Impact over West Africa. Journal of Applied Meteorology and Climatology , 51, 534-553. https://doi.org/10.1175/JAMC-D-11-051.1
Lee, J.B., Park, J.W., Yoon, J.H., Baek, N.C. and Shin, U.C. (2014) An Empirical Study of Performance Characteristics of BIPV (Building Integrated Photovoltaic) System for the Realization of Zero Energy Building. Energy , 66, 25-34. https://doi.org/10.1016/j.energy.2013.08.012
Sidrach-De-Cardona, M. and López, L.M. (1999) Performance Analysis of a Grid-Connected Photovoltaic System. Energy , 24, 93-102. https://doi.org/10.1016/S0360-5442(98)00084-X
Yadav, S.K. and Bajpai, U. (2018) Performance Evaluation of a Rooftop Solar Photovoltaic Power Plant in Northern India. Energy for Sustainable Development , 43, 130-138. https://doi.org/10.1016/j.esd.2018.01.006
Padmavathi, K. and Daniel, S.A. (2013) Performance Analysis of a 3MW p Grid Connected Solar Photovoltaic Power Plant in India. Energy for Sustainable Deve l opment , 17, 615-625. https://doi.org/10.1016/j.esd.2013.09.002
Daher, D.H., Gaillard, L., Amara, M., Lips, B. and Ménézo, C. (2014) Suiviexpérimental des performances d’une centrale solairephotovoltaïque à Djibouti. 3 ième Colloque International Francophone d ’ Energétique et Mécanique Les Énergiesrenouvelables et la Mécaniqueappliquée à l ’ Industrie , Moroni, 5-7 May 2014, 17-67.