Closer Approximation to Optimize Solar Panels Performance with Cleaning Cycle: A Follow-Up
- 1 Department of Physics, University of California Merced, Merced, USA
- 2 Department of Physics, University of Houston-Main, Houston, USA
Abstract
The performance of solar panels significantly degrades due to dust accumulation but cleaning too frequently will severely impact the financial benefits of the installation of solar panels. This paper assumes a realistic linear model for accumulation of dust on the solar panels and the resulting hourly average of absolute loss of efficiency in solar panels. This model accurately depicts the fact that energy production by solar panels occurs during sunshine hours only and also accounts for the degradation in the efficiency of solar panels due to dust accumulation throughout the entire day. Based on this, the optimal number of days for maximum financial profit and the critical number of days (above which there is no profit in installing solar panels) have been estimated. Furthermore, we have suggested a formalism to help estimate the finances for self-cleaning technology for PV system and also for calculating the minimum payback period for installing solar panels with the financial cost of the cleaning cycles properly considered. This research could be motivation for companies in developing self-cleaning mechanism for PV system.
- Darwish, Z.A., Kazem, H.A., Sopian, K., Al-Goul, M. and Alawadhi, H. (2015) Effect of Dust Pollutant Type on Photovoltaic Performance. Renewable and Sustainable Energy Reviews, 41, 735-744. https://doi.org/10.1016/j.rser.2014.08.068
- Hottel, H. and Woertz, B. (1942) Performance of Flat-Plate Solar-Heat Collectors.
- Nimmo, B. and Seid, A.M.S. (1979) Effect of Dust on the Performance of Thermal and Photovoltaic Fiat Plate Collectors in Saudi Arabia: Preliminary Results. Proceedings of the 2nd Miami International Conference on Alternative Energy Sources, Miami Beach, FL.
- El-Shobokshy, M.S. and Hussein, F.M. (1993) Degradation of Photovoltaic Cell Performance Due to Dust Deposition on to Its Surface. Renewable Energy, 3, 585-590. https://doi.org/10.1016/0960-1481(93)90064-N
- Kaldellis, J.K. and Kapsali, M. (2011) Simulating the Dust Effect on the Energy Performance of Photovoltaic Generators Based on Experimental Measurements. Energy, 36, 5154-5161. https://doi.org/10.1016/j.energy.2011.06.018
- Mani, M. and Pillai, R. (2010) Impact of Dust on Solar Photovoltaic (PV) Performance: Research Status, Challenges and Recommendations. Renewable and Sustainable Energy Reviews, 14, 3124-3131. https://doi.org/10.1016/j.rser.2010.07.065
- Mohammad, R.M., Hashim, H., Chandima, G., Mohd, A.R., Mohammad, I.R. and Shahrooz, H. (2016) Power Loss due to Soiling on Solar Panel: A Review. Renewable and Sustainable Energy Reviews, 59, 1307-1316. https://doi.org/10.1016/j.rser.2016.01.044
- Kimber, A., Mitchell, L., Nogradi, S. and Wenger, H. (2006) The Effect of Soiling on Large Grid-Connected Photovoltaic Systems in California and the Southwest Region of the United States. 4th IEEE World Conference on Photovoltaic Energy Conversion, Waikoloa, HI, 7-12 May 2006, 2391-2395. https://doi.org/10.1109/WCPEC.2006.279690
- Deutsche Gesellshaft Für Sonnenenergie (2008) Planning and Installing Photovoltaic Systems: A Guide for Installers, Architects and Engineers. Earthscan.
- Ghazi, S., Sayigh, A. and Ip, K. (2014) Dust Effect on Flat Surfaces—A Review Paper. Renew Sustain Energy Reviews, 33, 742-751. https://doi.org/10.1016/j.rser.2014.02.016
- Mejia, F.A. and Kleissl, J. (2013) Soiling Losses for Solar Photovoltaic Systems in California. Solar Energy, 95, 357-363. https://doi.org/10.1016/j.solener.2013.06.028
- Urrejola, E., Antonanzas, J., Ayala, P., Salgado, M., Ramrez-Sagner, G., Corts, C., Pino, A. and Escobar, R. (2016) Effect of Soiling and Sunlight Exposure on the Performance Ratio of Photovoltaic Technologies in Santiago, Chile. Energy Conversion and Management, 114, 338-347. https://doi.org/10.1016/j.enconman.2016.02.016