beopt, How do you upload TMY3 data to the software downloaded from the NSRDB data viewer

asked 2021-10-02 17:25:56 -0500

updated 2022-02-08 09:09:01 -0500

I have requested the TMY3 data and saved the data to the weather file in BEopt once I reload the program and try and select the data set I still get an error saying that the data is in the wrong format.

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Can you attach the weather file or provide screenshots? You can use Google Drive or Dropbox to share files, for example.

shorowit's avatar shorowit  ( 2021-10-04 09:30:21 -0500 )edit

I have a similar question. BEopt isn't letting me download TMY3 files through its software. I assume I have to use NSRDB and place it in the weather folder? What data points do I have to select and how do I convert, or is there a resource you can point to that can show me this? Thanks!

bhains's avatar bhains  ( 2021-11-09 09:00:27 -0500 )edit

BEopt uses EPW (EnergyPlus Weather) files, which you can download from

shorowit's avatar shorowit  ( 2021-11-09 11:47:49 -0500 )edit

Thank you for the help!

bhains's avatar bhains  ( 2021-11-09 11:54:39 -0500 )edit

I would caution against using temperature data from NSRDB for building simulations. The temperature data comes from MERRA reanalysis of satellite data, which can be off by 5 deg F on average vs. ground-station-measured temperature data.

Eric Wilson's avatar Eric Wilson  ( 2021-11-09 14:46:00 -0500 )edit