[Radiance-general] epw2wea

[Leyla Sanati]

Thank you Rob.
I am excited to hear that epw2wea will be in the Radiance package.
I couldn't install it on my mac, so I have to switch computers every time I
need to use the program.

Best,
Leyla



On Fri, Aug 2, 2013 at 10:02 PM, Rob Guglielmetti <
rob.guglielmetti at gmail.com> wrote:

> Hi Leyla,
>
> Actually it's slightly different, according to the gendaymtx man page:
>
> "Gendaymtx  takes a weather tape as input and produces a matrix of sky
> patch values using the Perez all-weather
>        model.  The weather tape is assumed to be in the simple ASCII
> format understood by DAYSIM,  which  contains  a
>        short  header  with  the  site parameters followed by the month,
> day, standard time, direct normal and diffuse
>        horizontal irradiance values, one time step per line."
>
> BTW, we are working on getting a version of epw2wea into the Radiance
> source tree so that future Radiance installers will include this utility in
> a regular Radiance install. I kinda thought that with gendaymtx being part
> of Radiance now, a utility to convert standard EnergyPlus weather files
> into the Daysim format was pretty much a dependency now, and luckily
> Christoph Reinhart agrees. NREL has a version of epw2wea that is compiling
> on all platforms and we hope to get it integrated into the Radiance source
> soon.
>
> Also, we are currently testing our integration of gendaymtx into
> OpenStudio; we are now seeing annual climate based daylight simulation
> execution times in a matter of minutes (single phase)! We hope to have this
> capability integrated into the release in time for the Radiance Workshop.
> Stay tuned...
>
> - Rob
>
>
>
> On Aug 2, 2013, at 1:45 PM, Leyla Sanati <leylasanati at gmail.com> wrote:
>
> > Hi all,
> >
> > I have a question about the epw2wea program, which converts an Energy
> Plus Weather file (EPW) into a WEA format.
> > When you use epw2wea command, the resulting WEA file usually has 5
> columns. Are they in the following order?
> >
> >
> > Month  |  Day  |  Hour  |  Global horizontal irradiance  |  Direct
> normal irradiance
> >
> >
> > Best,
> > Leyla
> > _______________________________________________
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> > Radiance-general at radiance-online.org
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>
>
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