Bifaciality: One small step for technology, one giant leap for kWh cost reduction

Published: January 7, 2015

By Radovan Kopecek, Head of the Advanced Solar Cells Department, ISC Konstanz; Yannick Veschetti, CEA-INES; Eric Gerritsen, Project Leader in PV Modules, CEA-INES; Andreas Schneider, ISC Konstanz,; Corrado Comparotto, Advanced Solar Cell Concepts Department, ISC Konstanz; Valentin D. Mihailetchi, Senior Scientist Advanced Solar Cell Concepts Department, ISC Konstanz; Jan Lossen, Project Manager, Industrial Solar Cells Department, ISC Konstanz; Joris Libal, Research Engineer, ISC Konstanz

The aim of this paper is to dispel the common belief that bifaciality is nonsense as it is not a mature technology, it is expensive and, because in large systems there is limited albedo from the rear side, it only serves the niche market. A complete picture of bifacial cell technologies and module concepts is presented, as well as levelized cost of electricity (LCOE) results for present and future bifacial systems.

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