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Error: "Could not check hub height..." with WRDB file

  • Mariane
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31 Oct 2026 10:16 #14633 by Mariane
Hi everyone!
I'm working on a wind energy project here in Brazil, and when trying to use the local weather data, I'm getting the following error: 'Could not check hub height compare to resource height. This may indicate a problem with your weather file.' I downloaded the file directly from the WRDB (Wind Resource Database) and have already checked the format. Does anyone know what might be causing this?

Many thanks! 

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  • Paul Gilman
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04 Nov 2026 10:43 #14634 by Paul Gilman
Hi Mariane,

Weather files from the WRDB for different parts of the world are in different formats, and some do not work with SAM. For details, see this post:https://sam.nlr.gov/forum/forum-general/4171-how-to-download-edit-a-nrel-wind-toolkit.html#13791.

For a description of SAM's CSV format for wind, see  natlabrockies.github.io/SAM/doc/weather-file-formats/weather_format_csv_wind.html .

Your file is missing the Header Row 2 column for atmospheric pressure for at least one height above the ground.

As a workaround, you could modify the column heading "surface air pressure (Pa)" in your file to "air pressure at 120 m (Pa)". You could also calculate the air pressure at 120 m to be more accurate.

Best regards,
Paul.


 

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