A Simple Model for Estimating the Influence of Spectrum Variations on PV Performance
We present a simple empirical model for the influence of the solar spectrum on the performance of photovoltaic modules. The model is based on the assumption that changes in the spectrum will affect the short-circuit current of the module and thereby the power output. The model has been applied to data sets from two modules measured outdoors in Ispra, Italy during several months. Model results show that under the measured conditions the overall effect of spectral variations is an increase in energy output of 0.4% for crystalline silicon and 1.5% for
cadmium telluride, relative to what would be expected from module measurements at standard test conditions.
Results also indicate that the model as presented should be modified to take into account the influence of module inclination.
HULD Thomas;
SAMPLE Tony;
DUNLOP Ewan;
2010-01-28
WIP Renewable Energies
JRC50084
https://publications.jrc.ec.europa.eu/repository/handle/JRC50084,
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