Untersuchung des Gesamtenergiedurchlassgrades an gebäudeintegrierbaren, teiltransparenten Photovoltaik-Modulen bei elektrischer Leistungsentnahme

Investigation of the total solar energy transmittance on building-integrated, semitransparent photovoltaic modules with and without extraction of electrical power.

The total solar energy transmittance (g-value) of different building-integrated PV-elements has been measured with and without extracting electrical power from the module. When extracting energy, a reduction in the g-value has been measured. Moreover, a reduction in temperature up to 4 K on the inner surface is observed. The experimental results are in very good agreement with a physical model based on energy conservation.