author = "Victoria Pérez, Marta"

Encontrado 20 documentos, página mostrada 1 de 2

New concepts and techniques for the development of high-efficiency concentrating photovoltaic modules

Description: El interés por los sistemas fotovoltaicos de concentración (CPV) ha resurgido en los últimos años amparado por el desarrollo de células multiunión de muy alta eficiencia basadas en semiconductores de los grupos III-V. Estas células han permitido obtener módulos de concentración con eficiencias que p...
Language(s): Inglés

Cost-free feed-in tariffs for renewable energy deployment in Spain

Description: Feed-in-tariff (FIT) schemes have been widely employed to promote renewable energy deployment. While FITs may be perceived by consumers as an extra cost, renewable energies cause a noticeable price reduction in wholesale electricity markets. We analyse both effects for the case of the Spanish electr...
Language(s): Inglés

Siete gráficos para ponerse al día en fotovoltaica

Description: La energía solar fotovoltaica es probablemente la tecnología de generación eléctrica que mayor desarrollo ha experimentado en los últimos años. Sobre ella se ha escrito y se seguirá escribiendo mucho en el futuro y no pretende este artículo analizar todos los aspectos técnicos, económicos, legislati...
Language(s): Español

On the analytical approach for modeling photovoltaic systems behavior

Description: The 1-diode/2-resistors electric circuit equivalent to a photovoltaic system is analyzed. The equations at particular points of the I–V curve are studied considering the maximum number of terms. The maximum power point as a boundary condition is given special attention. A new analytical method is de...
Language(s): Inglés

Renewable energies Driven by Feed-on Tariffs. Photovoltaic vs Wind Energy Development in Spain

Description: Although others regulations regarding feed-in tariffs for photovoltaics (PV) existed in Spain previously, the one that meant a paradigm change was the introduction in 2007 of law R.D.661/2007 which established a feed-in tariff of 41,75 cents/kWh if the installed capacity was greater than 100KWp and ...
Language(s): Inglés

A novel achromatic Fresnel lens for high concentrating photovoltaic systems

Description: In this paper we present a novel manufacturing method to produce achromatic Fresnel lenses for photovoltaic application. These achromatic lenses are capable of reaching a concentration factor three times higher than that attained by a conventional Silicone-on-Glass (SOG) Fresnel lens. The manufactur...
Language(s): Inglés

Assessment of the optical efficiency of a primary lens to be used in a CPV system

Description: This article summarizes experimental methods to evaluate the performance and to assess the efficiency of a lens that will be used as primary optics in a concentrating photovoltaic system comprising multijunction solar cells. The methods are classified into two groups: those intended to quantify the ...
Language(s): Inglés

Durability of dielectric fluids for concentrating photovoltaic systems

Description: Several dielectric fluids that might be used for immersing optics are analyzed in this paper. Their transmittances, both before and after an accelerated exposure to ultraviolet (UV) radiation equivalent to several years under real sun, are presented. In addition, the photocurrent losses caused by th...
Language(s): Inglés

Experimental analysis of a photovoltaic concentrator based on a single reflective stage immersed in an optical fluid

Description: This article reviews all the experimental tests carried out to analyze the performance of a FluidReflex photovoltaic concentrator. This novel concentrator concept consists of a single reflective stage immersed in an optical fluid. The presence of the fluid entails significant advantages. It not only...
Language(s): Inglés

Understanding causes and effects of non-uniform light distributions on multi-junction solar cells: Procedures for estimating efficiency losses

Description: This paper presents the mechanisms of efficiency losses that have to do with the non-uniformity of the irradiance over the multi-junction solar cells and different measurement techniques used to investigate them. To show the capabilities of the presented techniques, three different concentrators (th...
Language(s): Inglés

Encontrado 20 documentos, página mostrada 1 de 2

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