OpenStudio Results Report - "Energy Use" values significantly higher than "End Use"

asked 2023-11-23 10:19:34 -0500

jassociate's avatar

updated 2023-12-12 11:41:07 -0500

I'm running OpenStudio on one of the prototype models for Large Office. Using the Open Studio Result measure. Does anybody know how "Energy Use" is calculated, it is significantly higher than any of the other loads.

Total Electricity End Use is 1,612,522 kWh, total Gas End-Use is 1,612,522 kWh. These values align with all the other tables.

However, the Energy use table reports total Electricity at 15,722,021 and total gas at 5,502,154 kWh. Even multiplying the end-use by the site factors do not achieve these high values. The efficiency of my cooling and heating would need to be 0.94 and 0.32.

Ruining Open Studio Version 3.6.1 - Using Ideal Air Loads Measure

Link to download model (

Added the Measure "EnableIdealAirLoadsforAllZones"

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@jassociate can you add an image to your post to show the tables that you're reviewing?

Aaron Boranian's avatar Aaron Boranian  ( 2023-11-27 09:38:37 -0500 )edit

added the images, as you can see, the District totals are far greater than the Heating and Cooling Requirements.

jassociate's avatar jassociate  ( 2023-12-11 15:17:56 -0500 )edit

can you post a link to the OpenStudio model and give the OpenStudio version? I'm curious why the totals don't line up.

mdahlhausen's avatar mdahlhausen  ( 2023-12-12 09:07:55 -0500 )edit

Do you mean version OS 3.6 instead of 1.6? There have been several changes to end use and fuel type names since 1.6 that could be causing issues with the results measure. Also, ideal loads reports out the total load as district heating and cooling; it's not a formal HVAC system.

mdahlhausen's avatar mdahlhausen  ( 2023-12-12 09:20:51 -0500 )edit

Sorry not too familiar, used the wrong version, the SDK version I'm on is 3.6.1 - also forgot to note that I added the EnableIdealAirLoads for all Zones as I wan to understand the energy loss agnostic of the HVAC system.

jassociate's avatar jassociate  ( 2023-12-12 09:24:40 -0500 )edit