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Performance Indicators for Sun-Tracking Systems: A Case Study in Spain

DOI: 10.4236/epe.2014.69025, PP. 292-302

Keywords: Sun-Tracker, Cinematic Classification, PVGIS, GCR, SPR, PBT, NPV, IRR

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Abstract:

Current PV cells technology takes advantage mainly from beam radiation. In this context the sun-trackers are such devices for efficiency improvement. On the other hand, projected shadows between devices make mandatory to increase the distances between mounting systems. Thus, the land’s capacity for mounting PV panels can be dramatically decreased. This fact conducts us to wonder where the optimum efficient point is. First, in this paper different types of sun-tracking systems are classified according to the movement they perform (cinematic classification). Further, three real PV installations-fixed, horizontal-axis tracking and dual-axis mount tracking—located in the same geographical area in Spain (they are approximately under the same weather conditions) are analyzed. These installations have been studied in order to establish which one is the most efficient and affordable—Specific Energy Production (SEP) and Performance Ratio (PR) analysis. PVGIS solar radiation estimate tool has been used for comparing the theoretical radiation potential on each plant. The land requirements have been considered in the analysis of the Ground Cover Ratio (GCR) and the Surface Performance Ratio (SPR). Moreover, comparing three main financial indicators let us carry out a financial study: Payback Time (PBT), Net Present Value (NPV) and Internal Rate of Return (IRR). In the case study, final annual energetic results demonstrate that the dual-axis plant shows a relevant SEP advantage, but if we take into account the land occupied for this sort of devices we find much more profitable the horizontal-axis sun-tracking system, with a SPR value 4.24% higher than the fixed system we have studied. Its PBT is also a 22% lower than the dual-axis tracking installation.

References

[1]  Iqbal, M. (1983) An Introduction to Solar Radiation. Academic Press, San Jose.
[2]  Mousazadeh, H., Keyhani, A., Javadi, A., Mobli, H., Abrinia, K. and Sharifi, A. (2009) A Review of Principle and Sun-Tracking Methods for Maximizing Solar Systems Output. Renewable and Sustainable Energy Reviews, 13, 1800-1818.
[3]  Zhang, P., Zhou, G., Zhu, Z., Li, W. and Cai, Z. (2013) Numerical Study on the Properties of an Active Sun Tracker for Solar Streetlight. Mechatronics, 23, 1215-1222.
[4]  Bentaher, H., Kaich, H., Ayadi, N., Ben Hmouda, M., Maalej, A. and Lemmer, U. (2014) A Simple Tracking System to Monitor Solar PV Panels. Energy Conversion and Management, 78, 872-875.
http://dx.doi.org/10.1016/j.enconman.2013.09.042
[5]  Luque-Heredia, I., Quéméré, G., Cervantes, R., Laurent, O., Chiappori, E. And Chong, J.Y. (2012) The Sun Tracker in Concentrator Photovoltaics. In: LÓpez, A.B.C., Vega, A.M. and LÓpez, A.L., Eds., Next Generation of Photovoltaics, Springer, Berlin, 61-93.
http://dx.doi.org/10.1007/978-3-642-23369-2_3
[6]  CristÓbal LÓpez, A.B., Martí Vega, A. and Luque LÓpez, A. (2012) Next Generation of Photovoltaics. New Concepts. Vol. 1, Springer, Berlin.
[7]  Huld, T., Cebecauer, T., Súri, M. and Dunlop, E.D. (2010) Analysis of One-Axis Tracking Strategies for PV Systems in Europe. Progress in Photovoltaics: Research and Applications, 18, 183-194.
[8]  Perpiñan, O., Lorenzo, E. and Castro, M.A. (2007) On the Calculation of Energy Produced by a PV Grid-Connected System. Progress in Photovoltaics: Research and Applications, 15, 265-274.
[9]  Lorenzo, E., Pérez, M., Ezpeleta, A. and Acedo, J. (2002) Design of Tracking Photovoltaic Systems with a Single Vertical Axis. Progress in Photovoltaics: Research and Applications, 10, 533-543.
[10]  Afrin, F., Titirsha, T., Sanjidah, S., Siddique, A.R.M. and Rabbani, A. (2013) Installing Dual Axis Solar Tracker on Rooftop to Meet the Soaring Demand of Energy for Developing Countries. 2013 Annual IEEE India Conference (INDICON), Mumbai, 13-15 December 2013, 1-5.
[11]  AsociaciÓn de la Industria Fotovoltaica (ASIF) (2009) Hacia la consolidaciÓn de la energía solar fotovoltaica en España. Informe Anual 2009.
[12]  European Commission. PVGIS: PV Potential Estimation Utility, Photovoltaic Geographical Information System. (Accedido: 28 March 2014)
http://re.jrc.ec.europa.eu/pvgis/apps4/pvest.php
[13]  Súri, M. and Hofierka, J. (2004) A New GIS-Based Solar Radiation Model and Its Application to Photovoltaic Assessments. Transactions in GIS, 8, 175-190.
[14]  Lopez, D., Muñoz, R., Valero, S. and Senabre, C. (2011) Analysis of a Ground-Mounted Double Axis Photovoltaic Installation in Spain. International Conference on Renewable Energies and Power Quality, Las Palmas de Gran Canaria, 13-15 April 2011.
http://www.icrepq.com/icrepq'11/358-lopez.pdf
[15]  Perpiñán Lamigueiro, O. (2013) Energía Solar Fotovoltaica. On-Line.
[16]  Perpiñán Lamigueiro, O. (2008) Grandes Centrales Fotovoltaicas: ProducciÓn, Seguimiento y Ciclo de Vida.
[17]  Gordon, J.M. and Wenger, H.J. (1991) Central-Station Solar Photovoltaic Systems: Field Layout, Tracker, and Array Geometry Sensitivity Studies. Solar Energy, 46, 211-217.
[18]  BOE (2007) Real Decreto (RD) 661/2007 por el que se regula la actividad de producciÓn de energía eléctrica en régimen especial. 22846-22886.
[19]  Perez Montes, C. (2011) Tipos de referencia de las imposiciones a plazo fijo en los mercados interbancario y de deuda pública. Estabilidad Financiera, Banco de España, No. 21, 85-102.

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