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Importing WRDC Data

You can access the WRDC data, using this NASA site, and easily import them in PVsyst:

  • Go to the NASA site http://eosweb.larc.nasa.gov/sse
  • Click "Ground Sites", and then "Monthly Plots".
  • You will be prompted for registration with your e-mail address and a password (free).
  • Here you have 2 possibilities:
    • Either you choose geographic coordinates, and the nearest site will be selected,
    • Or you select a country, and then a site in the country.
  • Select the Monthly Averages item (other ones are daily values).

The required data will appear, along with the geographic coordinates.

  • Select the data from the Country name to the bottom of the table, and copy (Ctrl+C) into the clipboard.

Come back to PVsyst, Tools / Import Weather Data / WRDC, press Import and follow the instructions in red.

As they are not included in the WRDC data, you will be prompted to define the monthly temperatures from another source.