Predicting Photovoltaic Soiling From Air Quality Measurements

Sarah Toth, Michael Hannigan, Marina Vance, Michael Deceglie

Research output: Contribution to journalArticlepeer-review

21 Scopus Citations


Ambient particulate matter in urban environments is dynamic and heterogeneous; therefore, understanding photovoltaic energy loss due to soiling is challenging. Silicon reference cells were deployed in an urban-industrial area in Colorado colocated with measurements of ambient particulate matter concentrations. Regressing measured soiling ratios against cumulative sums of ambient coarse particulate matter since the last precipitation event and ambient fine particulate matter since the first day of deployment produces a root-mean-square error of approximately 0.013. This model partially addresses the challenge of quantifying the relationships between ambient air quality and photovoltaic soiling.

Original languageAmerican English
Article number9090155
Pages (from-to)1142-1147
Number of pages6
JournalIEEE Journal of Photovoltaics
Issue number4
StatePublished - Jul 2020

Bibliographical note

Publisher Copyright:
© 2011-2012 IEEE.

NREL Publication Number

  • NREL/JA-5K00-75315


  • Air
  • ambient
  • particulate matter (PM)
  • photovoltaic (PV)
  • soiling
  • urban


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