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4-terminal CPV module capable of converting global normal irradiance into electricity

: Martínez, Juan F.; Steiner, Marc; Wiesenfarth, Maike; Dimroth, Frank

Volltext urn:nbn:de:0011-n-5128067 (644 KByte PDF)
MD5 Fingerprint: 79c6b5571eab42a00a79b0ac6a6347ad
Erstellt am: 9.10.2018

Steiner, M.:
14th International Conference on Concentrator Photovoltaic Systems, CPV 2018 : 16-18 April 2018, Puertollano, Spain
Melville/NY: AIP Publishing, 2018 (AIP Conference Proceedings 2012)
ISBN: 978-0-7354-1728-1
Art. 090005, 7 S.
International Conference on Concentrator Photovoltaic Systems <14, 2018, Puertollano>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ISE ()
CPV; III-V on Silicon; GNI conversion; hybrid module; Photovoltaik; III-V und Konzentrator-Photovoltaik; Konzentrator-Bauelemente; Hochkonzentrierende Systeme (HCPV)

This paper investigates the outdoor performance of a new kind of hybrid concentrator photovoltaic module. The concept which we name, EyeCon, uses an array of Fresnel lenses to concentrate direct irradiance onto III-V four-junction solar cells while a large-area silicon cell absorbs diffuse sunlight and also acts as a heat distributing substrate. The preliminary results show that under a high ratio of direct to global irradiance (> 0.9) the concept is capable to convert up to 36.8 % of the global solar resource rather than just the direct beam. Moreover at a low ratio of direct to global irradiance (0.57) the hybrid module generates 30 % additional power with respect to the array of concentrator four-junction solar cells alone. The Eyecon module is applicable to all regions of the world and allows reaching the highest energy yield per module area of any PV technology.