Analyzing the Calibration History of Radiometers for Determining Optimal Calibration Day(s)

Research output: NRELPoster

Abstract

This study investigates the effects of calibrating radiometers using one day or multiple cloudless days as recommended by ASTM and ISO standards. The results demonstrate good responsivity agreement with estimated uncertainty error bars over the years for various radiometers under various Broadband Outdoor Radiometer Calibration (BORCAL) events at both the National Renewable Energy Laboratory and the Southern Great Plains facility. The BORCAL method appears to justify the use of a single calibration day with enough data points to attain repeatable calibration results.
Original languageAmerican English
StatePublished - 2023

Publication series

NamePresented at the PV Performance Modeling and Monitoring Workshop, 9-10 May 2023, Salt Lake City, Utah

NREL Publication Number

  • NREL/PO-5D00-86152

Keywords

  • BORCAL
  • Broadband Outdoor Radiometer Calibration
  • calibration
  • radiometer
  • responsivity

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