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Hourly reports in EnergyPlus output file

asked 2022-09-24 20:34:24 -0500

updated 2023-08-25 15:39:19 -0500

To whom it may concern,

I exported a file from OpenStudio to EnergyPlus in order to run a simulation directly in EnergyPlus. I already ran some simulations in EnergyPlus and got a couple of warnings. Nevertheless, I finally got the output file. I would like to extract the hourly reports for different parameters by the end of the process. A couple of years ago, I remember that I selected some parameters on a checklist in eQuest and the hourly reports were displayed in the output file after the run. I was thinking about adding a couple of command lines in the input file in EnergyPlus and then run the simulation. Or which other paths can I take? Any comments will be highly appreciated!

Kind regards,

José Luis Bermúdez Alcocer, Ph.D.

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answered 2022-09-25 11:49:29 -0500

mattkoch's avatar

You should be able to locate files "eplusout.rdd" and "eplusout.mdd" somewhere in the run folder for your IDF file.

In "eplusput.rdd", you will find output variables, the following being just one of hundreds of examples:

Output:Variable,*,Pump Electricity Rate,hourly; !- HVAC Average [W]

This generates outputs for each Pump in the model. Note that you could also replace the asterisk * with the name of a specific plant loop pump name - say you have a chilled water plant loop "CHW" and in it a chilled water pump "CHWP-1", then you could do the following.

Output:Variable,CHWP-1,Pump Electricity Rate,hourly; !- HVAC Average [W]

In "eplusout.mdd", you will find output meters, the following being just one of hundreds of examples:

Output:Meter,Electricity:Facility,hourly; !- [J]

Note that output meters are just a collection of output variables, as detailed in the "eplusout.mtd" file.

All you have to to do is pick one or several entries from "eplusout.rdd" and/or "eplusout mdd" and copy and past these lines to the end of the "in.idf" file, or whatever your main IDF file is called. Once you rerun the model in EnergyPlus, you can open the resulting "eplusout.sql" file in DView and pick what you want to look at.

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answered 2022-09-28 13:11:31 -0500

Dear Mr. Koch,

Thank you for your answer! I looked for information regarding Data Viewer (DView) and found it in the section "Using Data Viewer" in the OpenStudio Coalition´s website: This section redirected me to the following website This page gave me useful information about different graphs obtained through DView. Also, I found this in the UnMet Hours´website with the title "How do I install or find DView with OSApp 1.0 and OSApp 3.0?" It seems that there is Wex, which is another available platform similar to DView. How can I find or download DView? Or should I try with Wex? Any comments will be highly appreciated!

Kind regards,

José Luis Bermúdez Alcocer, Ph.D.

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You can download a Windows executable for DView here.

ericmartinpe's avatar ericmartinpe  ( 2022-10-03 17:11:24 -0500 )edit

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Asked: 2022-09-24 20:34:24 -0500

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Last updated: Sep 28 '22