An Investigation on the Pollen-Induced Soiling Losses in Utility-Scale PV Plants

Joao Gabriel Bessa, Michael Valerino, Matthew Muller, Mike Bergin, Leonardo Micheli, Florencia Almonacid, Eduardo Fernandez

Research output: Contribution to conferencePaper


Soiling, the accumulation of dust and other contaminants on the surface of photovoltaic (PV) modules, is a common factor that can negatively impact the performance of PV systems. In this study, the authors aim to analyze the impact of pollen on soiling losses in PV systems located in North Carolina, USA, particularly during the spring season. The performance data of two utility-scale PV plants was collected and analyzed using the two soiling extraction methods. Environmental data, including croplands and vegetation was also collected and analyzed to identify correlations with soiling losses. The results of the study may help improve understanding of necessary operation and maintenance activities for PV plants and provide new insights into the phenomenon of pollen deposition on PV systems.
Original languageAmerican English
Number of pages4
StatePublished - 2023
Event2023 IEEE 50th Photovoltaic Specialists Conference (PVSC) - San Juan, Puerto Rico
Duration: 11 Jun 202316 Jun 2023


Conference2023 IEEE 50th Photovoltaic Specialists Conference (PVSC)
CitySan Juan, Puerto Rico

Bibliographical note

See NREL/JA-5K00-87319 for related journal article

NREL Publication Number

  • NREL/CP-5K00-88827


  • correlation
  • data mining
  • maintenance engineering
  • photovoltaic systems
  • springs
  • surface contamination
  • vegetation


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