Experimental Evaluation of a Spectral Index to Characterize Temporal Variations in the Direct Normal Irradiance Spectrum

Experimental Evaluation of a Spectral Index to Characterize Temporal Variations in the Direct Normal Irradiance Spectrum

A simple index is desirable to assess the effects on both flat-plate and concentrating photovoltaics of natural changes in the solar spectrum. Some studies have suggested that the relationship between the Average Photon Energy (APE) and the shape of individual global tilted irradiance, global horizo...

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Bibliographic Details
Main Authors: Gustavo Nofuentes, Christian A. Gueymard, José A. Caballero, Guilherme Marques-Neves, Jorge Aguilera
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Applied Sciences
Subjects:
spectral irradiance
direct solar spectrum
spectroradiometer
average photon energy
effective wavelength
Online Access:https://www.mdpi.com/2076-3417/11/3/897

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