Methods and Systems for Determining Soiling on Photovoltaic Devices

Eduardo Fernandez (Inventor), Matthew Muller (Inventor), Leonardo Micheli (Inventor), Florencia Cruz (Inventor)

Research output: Patent


An aspect of the present disclosure relates to radiating light on to a front surface of a glass pane comprising a first surface and a second surface defining a thickness between the first surface and the second surface, wherein the first surface is substantially parallel to the second surface; detecting a transmittance of the light through the glass pane; comparing the transmittance through the glass pane to a reference transmittance value corresponding to a clean reference glass pane; and determining, using the transmittance and the reference transmittance, a soiling metric of a photovoltaic module.
Original languageAmerican English
Patent number10,734,946 B2
Filing date4/08/20
StatePublished - 2020

NREL Publication Number

  • NREL/PT-5K00-77570


  • photovoltaic module
  • photovoltaics
  • PV
  • soiling metric


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