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Use 1-minute interval weather data in EnergyPlus

asked 2015-10-18 10:33:12 -0500

updated 2015-10-18 16:08:49 -0500

The EPW file is hourly data. Is there a way to use 1-minuge interval weather data in EnergyPlus?

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answered 2015-10-19 12:43:39 -0500

Archmage gravatar image

Yes. Most epw files are hourly, but the format can be used with shorter intervals. If you have a one-minute epw file EneryPlus can use it. You need to use the same interval for the simulation timesteps.

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answered 2015-10-20 13:07:28 -0500

updated 2015-10-20 13:19:25 -0500

I have one month 1-minute interval weather data. I tried to insert those data into the existing EPW file. And the simulation failed.

I checked the EPW format documentation. To do the 1-minute interval weather data, we need to change the row 8 (DATA PERIODS, N2 to 60.)

image description

That means we need to have the same interval across the EPW file.

And it also required the weather data interval to be the same as the time step.

        if ( NumIntervalsPerHour != 1 ) {
            if ( NumIntervalsPerHour != NumOfTimeStepInHour ) {
                ShowSevereError( RoutineName + "Number of intervals per hour on Weather file does not match specified number of Time Steps Per Hour" );
                ErrorsFound = true;
            }
        }
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Asked: 2015-10-18 10:33:12 -0500

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Last updated: Oct 20 '15