Scalable Method for Extracting Soiling Rates from PV Production Data: Preprint

Research output: Contribution to conferencePaper


We present a method for analyzing time series production data from photovoltaic systems to extract the rate at which energy yield is affected by the accumulation of dust, dirt, and other forms of soiling. We describe an approach that is based on prevailing methods which consider the change in energy production during dry periods. The method described here builds upon these methods by considering a statistical sample of soiling intervals from each site under consideration. The method enables straightforward application to a large number of sites with minimal parameterization of data-filtering requirements. Furthermore, it enables statistical confidence intervals and comparisons between sites.
Original languageAmerican English
Number of pages7
StatePublished - 2016
Event43rd IEEE Photovoltaic Specialists Conference - Portland, Oregon
Duration: 5 Jun 201610 Jun 2016


Conference43rd IEEE Photovoltaic Specialists Conference
CityPortland, Oregon

NREL Publication Number

  • NREL/CP-5J00-65763


  • photovoltaics
  • soiling


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