Summary Information and Data Sets for the HBCU Solar Measurements Network

William Marion

Research output: NRELTechnical Report


This report provides summary information and describes hourly data sets for solar radiation elements, such as global horizontal and diffuse horizontal radiation, measured from 1 985 to 1 993 in the southeastern United States. The measurements were made by the Historically Black Colleges and Universities (HBCU) Solar Measurements Network, which is maintained and operated by faculty and studentsfrom the six participating colleges and universities and managed by the National Renewable Energy Laboratory for the U .S. Department of Energy. The report describes the HBCU stations, the measurement equipment, and the data collection, processing, and quality assessment procedures. It also explains the positions of the solar radiation elements within the hourly data sets. Long-term averages andmonthly variability for the solar radiation elements are presented in tables. The appendix contains information about when instruments and calibration factors were changed and also provides quality assessment summaries for daylight hours for each month of record.
Original languageAmerican English
Number of pages66
StatePublished - 1994

NREL Publication Number

  • NREL/TP-463-7090


  • diffuse horizontal radiation
  • global horizontal radiation
  • historically black colleges and universities (HBCUS)
  • solar measurements
  • solar radiation
  • solar resource assessment


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