Spectral network based on component cells under the SOPHIA European project

Abstract

Abstract. In the frame of the European project SOPHIA, a spectral network based on component (also called isotypes) cells has been created. Among the members of this project, several spectral sensors based on component cells and collimating tubes, so-called spectroheliometers, were installed in the last years, allowing the collection of minuteresolution spectral data useful for CPV systems characterization across Europe. The use of spectroheliometers has been proved useful to establish the necessary spectral conditions to perform power rating of CPV modules and systems. If enough data in a given period of time is collected, ideally a year, it is possible to characterize spectrally the place where measurements are taken, in the same way that hours of annual irradiation can be estimated using a pyrheliometer.

Spectral study and classification of worldwide locations considering several multijunction solar cell technologies

“…A graphical representation of the distribution of the annual DNI as a function of and has been proposed for the spectral characterization of a particular site for CPV applications, whose coordinates and reveal how well matched is a particular MJ technology to that site and the current balance correction needed to optimize that technology to the site. While that work was based on long time spectral characterization of the site based on component cells, data that are available only in very few sites over the world, here we propose the use of the extended AERONET database to determine the potential solar resource for CPV applications.…”

“…A graphical representation of the distribution of the annual DNI as a function of SMR top mid and SMR mid bot has been proposed [35] for the spectral characterization of a particular site for CPV applications, whose coordinates SMR top mid Figure 2. Schema of an example of sampling blocks from AERONET data series.…”

Spectral Impact on Multijunction Solar Cells Obtained by Means of Component Cells of a Different Technology

“…As mentioned in the introduction, when characterizing CPV cells, modules, and systems based on MJ solar cells, component cells of the same technology (with the same spectral response) are commonly used to evaluate the spectral distribution of the light impinging the cell or the concentrator aperture [17], [24]. However, MJ solar are constantly evolving and usually the components cells for the latest solar cell architecture are not available.…”