International Scientific Journal

Thermal Science - Online First

online first only

Impact of air temperature and wind speed on the efficiency of a photovoltaic power plant: An experimental analysis

For each photovoltaic power plant, it is extremely important to perform an analysis of its efficiency, as well as an analysis of all parameters that may affect efficiency. The electric energy of the photovoltaic system, which is delivered to the electric power system on a daily basis, is determined through the average daily insolation, the surface of the panel and the average efficiency value. One of the parameters that affect the conversion efficiency of a photovoltaic power plant is a decrease in the conversion efficiency due to an increase in panel temperature. In this paper an example is a real photovoltaic power plant with a nominal power of 50 kW, which is installed on the rooftop of the building of the Institute "Mihajlo Pupin", located in Zvezdara forest in Belgrade in Serbia. The correlation analysis of the estimated temperature of the photovoltaic panel was performed using two models and the measured temperature of the photovoltaic panel. The temperature of the photovoltaic panel was estimated using models, one of which does not take into account, and the other takes into account the influence of wind speed on the temperature of the panel.
PAPER REVISED: 2022-10-17
PAPER ACCEPTED: 2022-10-22
  1. G. Master, Renewable and Efficient Electric Power Systems, Stanford University, John Wiley & Sons, New Jersey, 2004 ISBN 0-471-28060-7
  2. T. Ma, H. Yang, L. Lu, Solar photovoltaic system modeling and performance prediction, , Renewable and Sustainable Energy Reviews, 36 (2014), pp. 304-315
  3. G.N. Tiwari, R.K. Mishra, S.C. Solanki, Photovoltaic modules and their applications: A review on thermal modelling, Applied Energy, Vol. 88 (2011), pp. 2287-2304
  4. M. Koehl, M. Heck, S.Wiesmeier, J. Wirth, Modeling of the nominal operating cell temperature based on outdoor weathering, Solar Energy Materials and Solar Cells, 95 (7), 1638-1646, 2011
  5. R. Bharti, J. Kuitche, M.G. TamizhMani, Nominal Operating Cell Temperature (NOCT): Effects of module size, loading and solar spectrum, Photovoltaic Specialists Conference (PVSC), 2009 34th IEEE, 1657-1662, 2009S. Jenner, F. Groba, J. Indvik, Assessing the strength and effectiveness of renewable electricity feed-in tariffs in European Union countries, Energy Policy 52 (2013), pp. 385-401
  6. M. C. Alonso Garcia, J.L. Balenzategui, Estimation of photovoltaic module yearly temperature and performacne based on Nominal Operation Cell Temperature calculations, Renewable Energy, 29 (12), 2004, pp. 1997-2010
  7. J. Mikulović, Ž. Đurišić, Solarna energetika, Akademska misao ISBN 978-86-7466-773-6
  8. M. A. Mitiu, M. V. Olteanu, N. S. Raischi, C. M. Balaceanu, D. Cociorva, Efficiency of Polycrystalline Photovoltaic Parks in Romania, Thermal Science, 2018 (22), pp. 665-671
  9. A. L. C. M. J. Zervos, C. Lins, J. A. Muth, 100% Renewble Energy Vision for the Europien Union-Re-thinking 2050, 2010
  10. J. K. Kaldellis, M. Kapsali, K. A. Kavadias, Temperature and wind speed impact on the efficiency of PV installations. Experience obtained from outdoor measurements in Greece, Renewable Energy 2014 (66), pp. 612-624
  11. T. Bhattacharya, A. K. Chakraborty, K. Pal, Effects of Ambient Temperature and Wind Speed on Performance of Monocrystalline Solar Photovoltaic Module in Tripura, India, Journal of Solar Energy 2014, Article ID 817078