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National Solar Radiation Database



The National Solar Radiation Database offers solar radiation data and limited meteorological data for 237 sites in the US over the period 1961-1990, and expanded data for 1454 sites from 1991-2005:

nsrdb_map_w61-90

Data includes:

  • Hourly Solar Data
  • Statistical Summaries
    • Daily Statistics Files
    • Hourly Statistics
    • Threshold Files
  • Solar Radiation Data Manual for Buildings
  • Solar Radiation Data Manual for Flat-Plate and Concentrating Collectors
  • Typical Meteorological Year (TMY2) Files
  • User manuals in PDF format can be downloaded. Data is in text format, but can be converted to spreadsheet format with a bit of work.

    Via Treehugger.


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