Is there a standard report to output a breakdown of all electricity end use items?

asked 2015-02-18 07:42:21 -0600

Jamie Bull

flag of United Kingdom of Great Britain and Northern Ireland

5072 ●6 ●27 http://oco-carbon.com/

updated 2015-11-10 14:47:31 -0600

__AmirRoth__

4436 ●5 ●17 http://bleedinggreenna...

This seems like it would be a really useful output when trying to track down which pump, fan, zone equipment item, heating coil, etc. is causing unexpectedly high energy use. Is there anything available to do this?

I've already looked through the OutputTable:SummaryReports documentation but nothing in there is broken down by item, just by end use category.

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answered 2015-02-18 10:06:26 -0600

JasonGlazer

6835 ●26 ●12 http://www.gard.com/

You might want to try the tabular report called "Energy Meters". It does not break the values down to each individual component but rather each individual meter which is often enough to understand where to start looking using individual Output:Variable objects.

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answered 2015-02-18 08:04:00 -0600

David Goldwasser

20395 ●94 ●14 http://www.openstudio.net/

You should be able to see sizing in the summary report which could indicate a problem. For individual items you should be able to request time series output variables.

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Yes, I know I can request individual outputs, but going through every every electricity using object type and adding all the "... Electric Energy" output variables that apply to it seemed like it would be a useful report that someone may have already created an automated script for.

Jamie Bull ( 2015-02-18 08:49:44 -0600 )edit

I think you can be more specific with a variable like this. Look at the eplusout.rdd file after you run a simulation for all options.

Output:Variable,*,Air System Fan Electric Energy,hourly; !- HVAC Sum [J]

There are also these ones, but not sure if they are listed individually.

Output:Variable,*,Fan Electric Power,hourly; !- HVAC Average [W]
Output:Variable,*,Fan Rise in Air Temperature,hourly; !- HVAC Average [deltaC]
Output:Variable,*,Fan Electric Energy,hourly; !- HVAC Sum [J]

David Goldwasser ( 2015-02-18 09:46:21 -0600 )edit

Yes, the Electric Energy ones are the ones I mean. Given that what I'm looking for doesn't exist I think the answer is to run the simulation once to get the eplusout.rdd, pull out the items that match on (Output:Variable.*Electric Energy.*;) and add them to the IDF or to an IMF to be included on the next run.

Jamie Bull ( 2015-02-18 10:49:16 -0600 )edit

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