Energy Yield in Hot & Sunny Climates: Impact of Silicon Solar Cell Architecture and Cell Interconnection

Jan Haschke, Johannes P. Seif, Yannick Riesen, Andrea Tomasi, Jean Cattin, Loïc Tous, Patrick Choulat, Monica Aleman, Emanuele Comagliotti, Angel Uruena, Richard Russell, Filip Duerinckx, Jonathan Champliaud, Jacques Levrat, Amir A. Abdallah, Brahim Aïssa, Nouar Tabet, Nicolas Wyrsch, Matthieu Despeisse, Jozef SzlufcikStefaan De Wolf, Christophe Ballif

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work, we investigate the temperature and irradiance dependencies of the power output of silicon solar cell architectures (BSF, PERC, PERT, SHJ). When we compare our data with commercial module datasheets, we find that the temperature coefficient under maximum power point conditions is systematically worse in the modules. Following our analysis we attribute this to ohmic losses (RCTM) due to cell interconnection. Using energy yield calculations we show the impact of RCTM on the energy production in moderate and hot and sunny climates for all investigated architectures. We conclude that maximizing energy production in hot and sunny environments requires not only a high open-circuit voltage, but also a minimal series-to-load-resistance ratio.
Original languageEnglish (US)
Title of host publication2017 IEEE 44th Photovoltaic Specialist Conference (PVSC)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-4
Number of pages4
ISBN (Print)9781509056057
DOIs
StatePublished - Jun 2017

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