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Is there a way (in the OpenStudio interface) to get the reported results to exclude district heating/cooling energy from the EUI and Annual Energy Usage summaries?

asked 2018-11-02 15:27:55 -0500

jbatt gravatar image

updated 2018-11-05 07:39:27 -0500

I'm hoping to avoid having to post-process this (which is easy enough to do).

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answered 2018-11-03 22:41:51 -0500

For reference the primary results reporting in the OpenStudio application is just a reporting measure that happens to download from BCL when you first launch the application. Can can copy and modify that measure to change its behavior. But just to clarify what is currently there, energy normalized by area across all fuels is listed as EUI in the Building Summary of the Model Summary section. The Annual Overview table gives total consumption broken down by end use, or by fuel, but not normalized by area. Additionally it also has end use break down for each fuel type.

You could make minor modifications to a sightly altered copy of this measure to for example report the annual tables normalized by area vs. fuel type specific consumption units like (kWh) for electricity and (therms) for gas. Or you could modify or add a new EUI below the existing EUI that excludes district heating and cooling.

You can also look in the standard EnergyPlus eplustbl.html file that comes with the simulation. "The EAp2-17a Energy Use Intensity" tables give an EUI by fuel type already, but it is (MJ/m^2).

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Thanks! To clarify, the values that I am interested in are the ones in the above table. The hope is that these values are actually changed to reflect the absence of any energy usage associated with district heating and cooling (as these are the values that that a Python script - used later in the workflow - is searching for). I'm hoping to avoid searching for outputs with different names.

I am aware that EUI is area-normalized energy usage. I'm assuming these would be updated depending on the value associated with the Total Energy column.

jbatt gravatar image jbatt  ( 2018-11-05 07:43:54 -0500 )edit

Do you have any natural gas or is electricity your only fuel other than district heating and cooling? There is a similar table in EnergyPlus that lists EUI by fuel. You could update the Python script just update script to point to that if you only have electricity, or add fuels together if you also use natural gas. I don't think you can alter that tab in the EnergyPlus HTML file to exclude district heating and cooling.

David Goldwasser gravatar image David Goldwasser  ( 2018-11-05 12:20:13 -0500 )edit

Electricity is my only other fuel type, so that may work. Thanks!

jbatt gravatar image jbatt  ( 2018-11-06 07:49:55 -0500 )edit

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Asked: 2018-11-02 15:27:55 -0500

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Last updated: Nov 05 '18