Proof-of-concept of a building-integrated hybrid CPV lightingsystem

Nuñez Júdez, Rubén and Anton Hernandez, Ignacio and Sala Pano, Gabriel (2017). Proof-of-concept of a building-integrated hybrid CPV lightingsystem. "Lighting Research and Technology", v. n/a (n. n/a); pp. 1-9. ISSN 1477-1535.


Title: Proof-of-concept of a building-integrated hybrid CPV lightingsystem
  • Nuñez Júdez, Rubén
  • Anton Hernandez, Ignacio
  • Sala Pano, Gabriel
Item Type: Article
Título de Revista/Publicación: Lighting Research and Technology
Date: 11 July 2017
ISSN: 1477-1535
Volume: n/a
Freetext Keywords: Energy Use in Building; Renewable Energy Systems; Solar Cell; Concentrator Photovoltaics;Building Lighting; Fiber Optics
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Electrónica Física
UPM's Research Group: Integración de Sistemas e Instrumentos ISI
Creative Commons Licenses: None

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A hybrid concentrator photovoltaics (CPV) module that combines the production of electricity and transports sunlight is proposed as a means to reduce the energy needs of buildings by two complementary solar energy approaches. Both concepts share the need for a solar tracker and an infrastructure to concentrate the sunlight which allows a reduction in costs of the proposed system. The CPV part is a well-known technology to produce electricity that serves as a host for the light subpart that transports sunlight through optical fibres. Measurements of a proof-of-concept show that in nominal conditions the lighting subpart is more efficient in the task of transporting sunlight than converting sunlight to electricity and then to light again. The efficiency threshold is a direct function of the fibre material and distance transported and the generated light is very similar to the solar light in terms of spectral content. Based on PMMA optical fibres and conventional CPV technology, the hybrid module converts 28.7% of the sunlight into electricity. Regarding the light transported by the optical fibres they slightly shift sunlight to bluish white but the quality of light is still comparable to a typical fluorescent lamp used in offices. (C)

Funding Projects

Government of SpainENE2010-18878LUZ-CPVIgnacio Antón HernándezConcentrador Híbrido para Generación Eléctrica Fotovoltaica e Iluminación de Edificios

More information

Item ID: 48538
DC Identifier:
OAI Identifier:
DOI: 10.1177/1477153517719119
Official URL:
Deposited by: Prof. Gabriel Sala
Deposited on: 21 Nov 2017 09:52
Last Modified: 14 Mar 2019 14:24
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