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Estudio preliminar del impacto óptico del soiling en testigos de vidrio, en un área semiurbana de Madrid, para aplicación en sistemas fotovoltaicos
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Advisor(s)
Abstract(s)
RESUMEN: El ensuciamiento (soiling) de los paneles solares disminuye la producción energética de las instalaciones fotovoltaicas. Dentro del proyecto PVCastSOIL, que investiga el soiling desde varias perspectivas, este trabajo presenta los resultados preliminares del estudio del impacto óptico del soiling en un sistema fotovoltaico experimental, no conectado a red, situado en la periferia de Madrid (España). Con el objeto de estimar cuánta luz solar incidente no alcanza las células solares de losmódulos fotovoltaicos debido al soiling, se instaló un mini-soporte que ha permitido exponer, con una inclinación de 35º, una serie de testigos de vidrio durante casi once meses. Midiendo sus espectros de transmitancia, se ha determinado que durante ese periodo el grado de soiling fue bajo (1-3% de pérdida de transmitancia). Por último, se comentan las mejoras aplicadas para continuar este estudio durante 2020, destacándose que el nuevo banco de pruebas de soiling permitirá exponer testigos de vidrio de mayor tamaño y comparar el grado de ensuciamiento para dos inclinaciones diferentes (8º y 35º).
ABSTRACT: Soiling on solar panels hinders the energy production of photovoltaic facilities. Within the PVCastSOIL project, which researches soiling from several perspectives, this work presents the early results of the study of the optical impairment due to soiling on an off-grid experimental photovoltaic system located in the urban fringe of Madrid (Spain). In order to estimate how much incoming sunlight does not reach the solar cells of the photovoltaic modules due to soiling, a 35º-tilted mini-mount was installed for the outdoor exposure of a series of glass coupons during almost eleven months. From their transmission spectra measurements, it was concluded that during such period the degree of soiling was low (1-3% of transmission loss). Finally, some improvements adopted for the continuation of this study during 2020 are commented, highlighting among them a new soiling test bench which will allow using larger glass coupons as well as comparing the degree of soiling for two different tilt angles (i.e. 8º and 35º).
ABSTRACT: Soiling on solar panels hinders the energy production of photovoltaic facilities. Within the PVCastSOIL project, which researches soiling from several perspectives, this work presents the early results of the study of the optical impairment due to soiling on an off-grid experimental photovoltaic system located in the urban fringe of Madrid (Spain). In order to estimate how much incoming sunlight does not reach the solar cells of the photovoltaic modules due to soiling, a 35º-tilted mini-mount was installed for the outdoor exposure of a series of glass coupons during almost eleven months. From their transmission spectra measurements, it was concluded that during such period the degree of soiling was low (1-3% of transmission loss). Finally, some improvements adopted for the continuation of this study during 2020 are commented, highlighting among them a new soiling test bench which will allow using larger glass coupons as well as comparing the degree of soiling for two different tilt angles (i.e. 8º and 35º).
Description
CIES2020 - XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar
Keywords
Solar energy Photovoltaic systems
Citation
Sanz Saiz, C... [et.al.] - Estudio preliminar del impacto óptico del soiling en testigos de vidrio, en un área semiurbana de Madrid, para aplicación en sistemas fotovoltaicos. In: CIES2020: As Energias Renováveis na Transição Energética: Livro de Comunicações do XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar. Helder Gonçalves, Manuel Romero (Ed.). Lisboa, Portugal: LNEG, 3-5 Novembro, 2020, p. 452-457
Publisher
LNEG - Laboratório Nacional de Energia e Geologia