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Re: [EnergyPlus_Support] Re: Standard vs. Daylight Saving Time
Yes. That is correct. Weather data files are in standard time so that every
day in the weather file is 24 hrs. Otherwise there would be a 25 hr day in the
fall and a 23 hr day in the spring.
Mike
On 18 Jul 2006 at 22:53, somsgr wrote:
> Thank you Mike.
> That means new weather file (based on actual weather record for
> particular place) must be created for standard time NOT for daylight
> saving time. Please let me know if it is not so.
>
> Som
>
>
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte"
> <mjwitte@...> wrote:
> >
> > The reported times in the csv output files are always in standard
> time.
> > Daylight savings shifts schedule values by 1 hour when daylight
> savings is
> > active. Add REPORT VARIABLE "Daylight Saving Time Indicator" to
> your output to
> > confirm operation of daylight savings. If it is always zero, then
> check that
> > the daylight savings option in the RunPeriod object is set and
> that the
> > specifications in the weather file are correct. When the daylight
> saving time
> > indicator is 1, you should see a shift in scheduled values such as
> internal
> > loads profiles and thermostat settings.
> >
> > Mike
> >
> >
> >
> >
> > On 13 Jul 2006 at 20:32, somsgr wrote:
> >
> > > Standard vs. Daylight Saving Time
> > >
> > > I created a weather file with daylight saving time. However,
> Energy
> > > Plus output calculates solar altitude angle for standard time.
> That
> > > mismatches the weather parameters with solar altitude and
> irradiation.
> > > Can somebody guide me hot to make E+ to calculate everything in
> > > daylight saving time?
> > >
> > > Thank you!
> > >
> > > Som Shrestha
> > >
> > >
> > >
> > >
> > >
> > >
> > > The primary EnergyPlus web site is found at:
> > > http://www.energyplus.gov
> > >
> > > The group web site is:
> > > http://groups.yahoo.com/group/EnergyPlus_Support/
> > >
> > > Attachments are not allowed -- please post any files to the
> appropriate folder
> > > in the Files area of the Support Web Site.
> > >
> > > EnergyPlus Documentation is searchable. Open EPlusMainMenu.idf
> and press the
> > > "search" button.
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
> >
> > ========================================================
> > Michael J. Witte, GARD Analytics, Inc.
> > EnergyPlus Testing and Support
> > EnergyPlus-Support@...
> >
>
>
>
>
>
>
>
>
> The primary EnergyPlus web site is found at:
> http://www.energyplus.gov
>
> The group web site is:
> http://groups.yahoo.com/group/EnergyPlus_Support/
>
> Attachments are not allowed -- please post any files to the appropriate folder
> in the Files area of the Support Web Site.
>
> EnergyPlus Documentation is searchable. Open EPlusMainMenu.idf and press the
> "search" button.
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support
EnergyPlus-Support@xxxxxxxx
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