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Energy Express

  • Editor: Bernard Kippelen
  • Vol. 18, Iss. S1 — Apr. 26, 2010
  • pp: A25–A40

High performance Fresnel-based photovoltaic concentrator

Pablo Benítez, Juan C. Miñano, Pablo Zamora, Rubén Mohedano, Aleksandra Cvetkovic, Marina Buljan, Julio Chaves, and Maikel Hernández  »View Author Affiliations

Optics Express, Vol. 18, Issue S1, pp. A25-A40 (2010)

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In order to achieve competitive system costs in mass-production, it is essential that CPV concentrators incorporate sufficient manufacturing tolerances. This paper presents an advanced concentrator optic comprising a Fresnel lens and a refractive secondary element, both with broken rotational symmetry, an optic producing both the desired light concentration with high tolerance (high acceptance angle) as well as an excellent light homogenization by Köhler integration. This concentrator compares well with conventional Fresnel-based CPV concentrators.

© 2010 OSA

OCIS Codes
(080.2740) Geometric optics : Geometric optical design
(220.1770) Optical design and fabrication : Concentrators
(350.6050) Other areas of optics : Solar energy
(220.4298) Optical design and fabrication : Nonimaging optics

ToC Category:
Solar Concentrators

Original Manuscript: January 19, 2010
Revised Manuscript: February 26, 2010
Manuscript Accepted: February 26, 2010
Published: April 26, 2010

Virtual Issues
Focus Issue: Solar Concentrators (2010) Optics Express

Pablo Benítez, Juan C. Miñano, Pablo Zamora, Rubén Mohedano, Aleksandra Cvetkovic, Marina Buljan, Julio Chaves, and Maikel Hernández, "High performance Fresnel-based photovoltaic concentrator," Opt. Express 18, A25-A40 (2010)

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  14. The same BK7 glass has been considered for all the SOE’s under comparison. Though BK7 can be molded (see for instance, http://www.rpoptics.com/index.php?page=rpo-moldable-glass-data ) is more common the use of, for instance, B270. The light absorption in B270 is slightly higher than in BK7, which causes that if the comparison is done using B270, the efficient of the RTP (whose optical path is longer) is penalized the most.
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