Output Enhancement of Bifacial Solar Modules under Diffuse and Specular Albedo

Shweta Pal, Rebecca Saive

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)
43 Downloads (Pure)


We present an albedo-centric reverse-ray tracing software to model the influence of albedo surfaces with complex spectro-angular reflectance (i.e. diffuse, glossy, specular, and metamaterials) on the short-circuit current density of a bifacial module. We find that for a silicon heterojunction module, a diffuse albedo leads to higher output and is more robust to self-shading and changes in orientation than a specular reflector. Our approach enables detailed and accurate albedo-dependent output calculation for various known and even exotic reflectors. Such a methodology can be used to design optimal reflectors and determine optimal configurations.

Original languageEnglish
Title of host publication2021 IEEE 48th Photovoltaic Specialists Conference, PVSC 2021
Place of PublicationPiscataway, NJ
Number of pages4
ISBN (Electronic)978-1-6654-1922-2
ISBN (Print)978-1-6654-3018-0
Publication statusPublished - 26 Aug 2021
Event48th IEEE Photovoltaic Specialists Conference, PVSC 2021 - Fort Lauderdale, United States
Duration: 20 Jun 202125 Jun 2021
Conference number: 48

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371


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


  • Bifacial modules
  • Diffuse albedo
  • Glossy albedo
  • Reverse ray-tracing
  • Short-circuit current density
  • Spectro-angular albedo
  • Specular albedo


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