Seasonal Trends of Soiling on Photovoltaic Systems

Leonardo Micheli, Matthew Muller

Research output: Contribution to conferencePaper

2 Scopus Citations


This work investigates the seasonal variability of photovoltaic soiling losses over a 12-month period for 15 soiling stations deployed in the USA. We present a new parameter able to rank the sites according to the cumulative losses occurring over 3- and 6- month periods. The relations between soiling losses and particulate matter are briefly discussed, as well. Moving from long-term to shorter-term data increases the complexity of the analysis: monthly correlations are found to have lower accuracy than the longer-term ones presented in the literature.
Original languageAmerican English
Number of pages6
StatePublished - 2018
Event2017 IEEE 44th Photovoltaic Specialist Conference (PVSC) - Washington, D.C.
Duration: 25 Jun 201730 Jun 2017


Conference2017 IEEE 44th Photovoltaic Specialist Conference (PVSC)
CityWashington, D.C.

Bibliographical note

See NREL/CP-5J00-68673 for preprint

NREL Publication Number

  • NREL/CP-5K00-73966


  • amorphous silicon
  • CdTe
  • CIGS
  • crystalline silicon
  • performance defects
  • safety failures
  • visual inspection


Dive into the research topics of 'Seasonal Trends of Soiling on Photovoltaic Systems'. Together they form a unique fingerprint.

Cite this