Modeling Reference Cell Performance Using Measured and Modeled Spectral Data

Josh Peterson, Frank Vignola, Afshin Andreas, Aron Habte, Manajit Sengupta

Research output: Contribution to conferencePaper


The performance of several silicon-based reference cells is examined under clear skies on a horizontal and two-axis tracking surface during the winter of 2022. The ratio of the calculated reference cell output to the measured reference cell output is examined. For each reference cell, when using the measured spectral data, the ratio of the estimated to measured output varies by less than +/-0.6% at the P95 level. The analysis was also done using modeled spectral values obtained from the Bird spectrl2 model. The ratio between the estimated reference cell output using the modeled spectral values to the measured reference cell output varies by +/-1.1% at the P95 level.
Original languageAmerican English
Number of pages6
StatePublished - 2023
Event2023 IEEE Photovoltaic Specialists Conference (PVSC) - San Juan, Puerto Rico
Duration: 11 Jun 202316 Jun 2023


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

NREL Publication Number

  • NREL/CP-5D00-86456


  • angle of incidence
  • reference cell model
  • reference cell performance
  • spectral data


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