Insulation or Irradiance: Exploring Why Bifacial Photovoltaics Run Hot

Bryan M. Cote, Ian M. Slauch, Timothy J. Silverman, Michael G. Deceglie, Vivian E. Ferry

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

2 Scopus citations


Bifacial photovoltaics are predicted to become the dominant device architecture over the next couple of years, but their thermal performance is not yet well understood. In this study, we model the thermal effects of different backside lamination materials on the performance of bifacial PERC cells. Glass-glass laminated cells were found to operate hotter than equivalent glass-polymer backsheet packed cells. This was solely due to the increased absorption of rear side incident light.

Original languageEnglish (US)
Title of host publication2021 IEEE 48th Photovoltaic Specialists Conference, PVSC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)9781665419222
StatePublished - Jun 20 2021
Event48th IEEE Photovoltaic Specialists Conference, PVSC 2021 - Fort Lauderdale, United States
Duration: Jun 20 2021Jun 25 2021

Publication series

Name2021 IEEE 48th Photovoltaic Specialists Conference (PVSC)


Conference48th IEEE Photovoltaic Specialists Conference, PVSC 2021
Country/TerritoryUnited States
CityFort Lauderdale

Bibliographical note

Funding Information:
ACKNOWLEDGMENT The authors thank Dr. Silvana Ayala for helpful discussions. This material is based upon work supported by the U.S. Department of Energy Office of Energy Efficiency (EERE) under the Solar Energy Technologies Office Award DEEE0008542. Part of this work was performed with equipment supported by funding from the National Science Foundation through the UMN MRSEC under Award DMR-2011401. The authors acknowledge the Minnesota Supercomputing Institute (MSI) at the University of Minnesota for providing resources that contributed to the research results reported within this paper. This work was authored in part by Alliance for Sustainable Energy, LLC, the manager and operator of the National Renewable Energy Laboratory for the U.S. Department of Energy (DOE) under Contract DE-AC36-08GO28308. Funding was provided also provided by the Engineering Research Center Program of the National Science Foundation and under NSF Cooperative Agreement EEC-1041895. The views expressed herein do not necessarily represent the views of the U.S. Department of Energy or the United States government. The U.S. Government retains and the publisher, by accepting the article for publication, acknowledges that the U.S. Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for U.S. Government purposes.

Publisher Copyright:
© 2021 IEEE.


  • bifacial photovoltaics
  • computer simulation
  • optics
  • thermal conductivity
  • thermal management

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