[Bldg-sim] TMY3 Released with 1020 US Locations

Tim Johnson timj at ctagroup.com
Wed May 14 12:29:25 PDT 2008


I am attempting to follow these steps, but I can't seem to figure out how to use the DOE2 unilities.  It looks like it is only DOS based and I am not familiar with DOS.  Could you walk me through the steps to convert from .TM2 to .bin using the DOE2 utility?
Thanks,
Tim

>>> Randy Wilkinson <randy at hvacware.net> 05/14/08 11:21 AM >>>
Be aware that what NREL calls TMY2 weather data is true text based TMY2 
weather data per their original definition.  DOE2 (eQuest) uses a binary 
version of the TMY2 weather files.  The binary version is about 1/10th 
the file size of the original text based TMY2 file.  You need to use 
another weather processor to convert the true TMY2 into a binary version 
(xxxxxx.BIN) for use with eQuest.  You can't just rename the file as it 
sounds like you did.

step 1 - Get the TMY3 weather file for your location
step 2 - Use NREL's TMY3toTMY2 converter to convert it to TMY2
step 3 - Use DOE2 or EnergyPlus weather utilities to convert the text 
based TMY2 weather file to a binary version for use with DOE2 (eQuest)

I think you skipped step 3.

Randy Wilkinson

James Hess wrote:
> Great news on the TMY3 weather data.  We want to start using it in eQuest.
>
> However, FYI... in order to test the new TMY3 files out, we downloaded a TMY3
> weather file for Little Rock, AR.  Then we converted the TMY3 file to TMY2
> (using same name as TMY2 --> LITTLEAR.BIN ), placed it in a new folder under
> eQuest weather (Weather\TMY3) then tried to use in eQuest and got an error,
> and the simulation would not run.
>
> Is there any additional information that we need to know in order to make
> this work?
>
>   
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