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Energies 2015, 8(11), 12505-12529; doi:10.3390/en81112316

Photovoltaic Systems with and without Radiation Concentrators for Temperate and Tropical Regions

Agricultural Engineering Department of the Federal University of Vicosa, Vicosa 36570-900, Brazil
Instituto de Energia Solar, Universidad Politécnica de Madrid, Avenida Complutense s/n, Madrid 28040, Spain
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editor: Chi-Hwan Han
Received: 13 May 2015 / Revised: 22 September 2015 / Accepted: 14 October 2015 / Published: 4 November 2015
(This article belongs to the Special Issue Perovskite-Based Solar Cells)
View Full-Text   |   Download PDF [4475 KB, uploaded 4 November 2015]   |  


The industrial development of solar photovoltaic technology has attracted investors and influenced governments to establish public policies for the sector. The present research consisted of studying, building and testing low concentration solar radiation systems for photovoltaic energy conversion. The study used optical nonimaging parameters for the V-trough type radiation concentrator constructed of anodized aluminum, to reflect and to cool. Designed to concentrate radiation by about two times and consisting of a set of photovoltaic modules connected in parallel, they were modeled in the Laboratory of Energy Area in the Department of Agricultural Engineering of the Federal University of Vicosa, Brazil, at the coordinates 20°45′14′′ S latitude, 42°52′53′′ W longitude and altitude 648.74 m. They were installed to the geographic North, with the same slope as the local latitude. For comparative analysis, it was determined the electrical characteristics for evaluation of the prototype’s performance with and without radiation concentration, the final productivity for cities in tropical and temperate regions and economic analysis for the system. It was concluded that the prototypes allowed for a gain of energy with concentration, about 31.3% more, and therefore a productivity gain for the analyzed cities in, kWh·kWp−1. View Full-Text
Keywords: photovoltaic solar energy; concentrator; optical device; energy use; energy efficiency photovoltaic solar energy; concentrator; optical device; energy use; energy efficiency

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Sant’Anna, V.R.S.; Filho, D.O.; Egido, M.A.; Ribeiro, A.; Filho, A.F.L.; Ferreira, A.C.F. Photovoltaic Systems with and without Radiation Concentrators for Temperate and Tropical Regions. Energies 2015, 8, 12505-12529.

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