Electro-optical study of a ×1024 concentrator photovoltaic system
Article first published online: 27 AUG 2012
Copyright © 2012 John Wiley & Sons, Ltd.
Progress in Photovoltaics: Research and Applications
How to Cite
Pereira, A., Dargent, L., Lorin, G., Schwartz, W., Baffie, T., Mangeant, C., Mariotto, M., de Salins, J.-E. and Vives, G. (2012), Electro-optical study of a ×1024 concentrator photovoltaic system. Prog. Photovolt: Res. Appl.. doi: 10.1002/pip.2271
- Article first published online: 27 AUG 2012
- Manuscript Accepted: 26 JUN 2012
- Manuscript Revised: 10 MAY 2012
- Manuscript Received: 28 MAR 2012
- concentrator photovoltaic system;
Concentrator photovoltaic (CPV) systems are one of the most promising technologies for future energy supply. Several studies reported the interest of using a Fresnel lens coupled with a secondary optical element in such a system. For high concentration factor, the optimization of the optical configuration plays a key role regarding electrical performances. On the other hand, the thermal management of the solar cell is also critical to ensure a better module efficiency. This paper presents a study of a ×1024 CPV system performances and a methodology for estimating the optical chain efficiency, the cell temperature impact and the alignment requirements. Module efficiencies were then measured as a function of the cell temperature and correlated to optical performances through current-tension characterizations under real solar illumination conditions and the estimation of the power density received by the solar cell. The system yield was up to 27% for a cell temperature around 30 °C, confirming that high concentration ratio should be of great interest in the near future. A 1D model was also developed in order to quantify the possible improvements of this CPV system. Using a solar cell with an efficiency of 36.7% at ×600, we then demonstrated that the ×1024 CPV system could reach up to 30% in standard test conditions. Copyright © 2012 John Wiley & Sons, Ltd.