Minimum pool years for TMY3 data?

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nino
Topic Author

24 Apr 2015 18:50 #3252 by nino

Minimum pool years for TMY3 data? was created by nino

I checked the "Users Manual for TMY3 Data Sets" and it says that TMY3 files were derived mostly from a 1976-2005 period where available, and a 1991-2005 period of record for all other locations.
So the minimum pool years is 14 years (2005-1991).
Still in the section "1.5 TMY3 Site Selection" it is mentioned that:

"No stations with less than a ten-year data pool were included in the TMY3 data set."

So basically the minimum pool years is 10 not 14?

Did I get this right?

Thank you for the reply.

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Paul Gilman

27 Apr 2015 17:55 #3253 by Paul Gilman

Replied by Paul Gilman on topic Minimum pool years for TMY3 data?

Hello,
According to the "Best Practices Handbook for the Collection and Use of Solar Resource Data for Solar Energy Applications" ( PDF 8.9 MB ), the period of record should be at least 30 years in order for a long term dataset to be representative of the climate at a given location. It is possible to create typical year data for a shorter period of record, but then that data represents the weather over that period rather than the longer term climate. See Chapter 5 of the handbook for a more detailed discussion of the topic.
Best regards,

Paul.

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