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Instantaneous Power Generation of Monofacial and Bifacial Photovoltaic Modules Under Tracker-Induced Albedo Variations.

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Title: Instantaneous Power Generation of Monofacial and Bifacial Photovoltaic Modules Under Tracker-Induced Albedo Variations.
Authors: Kampik, Marian1 (AUTHOR), Bodzek, Krzysztof2 (AUTHOR), Domoracki, Arkadiusz1,2 (AUTHOR), Jarek, Grzegorz2 (AUTHOR) grzegorz.jarek@polsl.pl
Source: Energies (19961073). Jun2026, Vol. 19 Issue 11, p2641. 28p.
Subject Terms: *Albedo, *Photovoltaic power generation, *Solar panels, *Electric power engineering, *Solar energy, *Electric power production, *Maximum power point trackers
Abstract: This paper presents an experimental comparison of the instantaneous power generation of standard and bifacial photovoltaic modules under real operating conditions. The study focuses on short-term effects caused by spatially variable albedo and tracker-induced changes in module orientation. Both modules were installed on the same mobile single-axis tracking platform and had identical rated front-side power, which ensured nearly identical operating conditions and independent MPPT operation. The experimental campaign included five ground surfaces: grass, river sand, grey paver, light aggregate, and dark aggregate. For each surface, electrical parameters and albedo were recorded over the full investigated geometrical range, covering relative solar azimuth from −60° to +60° and module tilt from 0° to 90°. The measured increase in power generation of the bifacial module relative to the standard module depended strongly on the ground surface. Over the full investigated range, the gain was 6.4% for grass, 11.3% for river sand, 5.9% for grey paver, 13.6% for light aggregate, and 4.5% for dark aggregate. These results confirm that, in bifacial photovoltaic systems with tracking, the ground surface and its reflective properties significantly affect the rear-side contribution and instantaneous power output. Consequently, albedo should not be treated as a constant or spatially homogeneous parameter when assessing short-term bifacial PV performance. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 194588029
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Instantaneous Power Generation of Monofacial and Bifacial Photovoltaic Modules Under Tracker-Induced Albedo Variations.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Kampik%2C+Marian%22">Kampik, Marian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bodzek%2C+Krzysztof%22">Bodzek, Krzysztof</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Domoracki%2C+Arkadiusz%22">Domoracki, Arkadiusz</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jarek%2C+Grzegorz%22">Jarek, Grzegorz</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> grzegorz.jarek@polsl.pl</i>
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  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Jun2026, Vol. 19 Issue 11, p2641. 28p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Albedo%22">Albedo</searchLink><br />*<searchLink fieldCode="DE" term="%22Photovoltaic+power+generation%22">Photovoltaic power generation</searchLink><br />*<searchLink fieldCode="DE" term="%22Solar+panels%22">Solar panels</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+power+engineering%22">Electric power engineering</searchLink><br />*<searchLink fieldCode="DE" term="%22Solar+energy%22">Solar energy</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+power+production%22">Electric power production</searchLink><br />*<searchLink fieldCode="DE" term="%22Maximum+power+point+trackers%22">Maximum power point trackers</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper presents an experimental comparison of the instantaneous power generation of standard and bifacial photovoltaic modules under real operating conditions. The study focuses on short-term effects caused by spatially variable albedo and tracker-induced changes in module orientation. Both modules were installed on the same mobile single-axis tracking platform and had identical rated front-side power, which ensured nearly identical operating conditions and independent MPPT operation. The experimental campaign included five ground surfaces: grass, river sand, grey paver, light aggregate, and dark aggregate. For each surface, electrical parameters and albedo were recorded over the full investigated geometrical range, covering relative solar azimuth from −60° to +60° and module tilt from 0° to 90°. The measured increase in power generation of the bifacial module relative to the standard module depended strongly on the ground surface. Over the full investigated range, the gain was 6.4% for grass, 11.3% for river sand, 5.9% for grey paver, 13.6% for light aggregate, and 4.5% for dark aggregate. These results confirm that, in bifacial photovoltaic systems with tracking, the ground surface and its reflective properties significantly affect the rear-side contribution and instantaneous power output. Consequently, albedo should not be treated as a constant or spatially homogeneous parameter when assessing short-term bifacial PV performance. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=194588029
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3390/en19112641
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 28
        StartPage: 2641
    Subjects:
      – SubjectFull: Albedo
        Type: general
      – SubjectFull: Photovoltaic power generation
        Type: general
      – SubjectFull: Solar panels
        Type: general
      – SubjectFull: Electric power engineering
        Type: general
      – SubjectFull: Solar energy
        Type: general
      – SubjectFull: Electric power production
        Type: general
      – SubjectFull: Maximum power point trackers
        Type: general
    Titles:
      – TitleFull: Instantaneous Power Generation of Monofacial and Bifacial Photovoltaic Modules Under Tracker-Induced Albedo Variations.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Kampik, Marian
      – PersonEntity:
          Name:
            NameFull: Bodzek, Krzysztof
      – PersonEntity:
          Name:
            NameFull: Domoracki, Arkadiusz
      – PersonEntity:
          Name:
            NameFull: Jarek, Grzegorz
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          Dates:
            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 19961073
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              Value: 19
            – Type: issue
              Value: 11
          Titles:
            – TitleFull: Energies (19961073)
              Type: main
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