How are the energy balance items calculated?

thank you very much, @SamueldeVries and @chris, for the detailed clarification.

Yes, the mechanical ventilation energy is calculated as the following as you explained:

( Zone Ideal Loads Zone Total Heating Energy
- Zone Ideal Loads Supply Air Total Heating Energy)
-
( Zone Ideal Loads Zone Total Cooling Energy
- Zone Ideal Loads Supply Air Total Cooling Energy)

The updated excel sheet is attached for everybody’s reference.

May I also ask:

  1. Is the item opaque conduction in the energy balance chart calculated from Surface Average Face Conduction Heat Transfer Energy?
    This is the only item that I’m unable to get the same value as that produced by the Construct Energy Balance component for some reason …

  2. The solar item on the energy balance chart seems to be solar gains through glazing surfaces. What about the solar gains through opaque surfaces, and what is the output variable from which it is calculated?

Appreciate your advice.

EnergyPlus output variables _v010.xlsx (14.3 KB)

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