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DST

Sirena DePue
Topic Author

04 Dec 2025 09:38 #14403 by Sirena DePue

DST was created by Sirena DePue

Hello,

Does the weather data & TMY data gathered from nsrdb.nrel.gov/data-viewer account for daylight savings time when selecting 'Convert UTC to Local Time'?

Thanks!

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Paul Gilman

05 Dec 2025 10:56 #14405 by Paul Gilman

Replied by Paul Gilman on topic DST

Hi Sirena,

No. The NSRDB data does not account for daylight savings time or for leap years.

For SAM simulations, be sure to download the data in local time.

Best regards,
Paul.

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