Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

Revision history [back]

click to hide/show revision 1
initial version

Electricity:HVAC accounts for all HVAC electric consumption? How to obtain Chiller's consumption?

Hello! I'm trying to perform a model calibration. For that I have to try that Measured Electricity Consumption data that was given to me matches the Simulated energy consumption of EnergyPlus. Specifically for this case, I'm trying to approximate measured and simulated HVAC electric energy consumption, since I have data of HVAC measured consumption too. I have 2 questions regarding this issue.

1) The first one is that I'm not sure of what electricity is assigned to Electricity:HVAC in EnergyPlus meter. I made a research in MTD file and saw that, for example, chiller, cooling tower, or exhaust and intake ventilation do not make part of Electricity:HVAC in meter. That way, the simulated HVAC electric consumption is much smaller than the measured. What is the reason for these components (chiller, cooling tower, intake and exhaust ventilation consumptions) do not make part of Electricity:HVAC meter?

2) The second question is: in that case I tried to sum the energy consumption of Electricity:HVAC to the components that were not included. However, I noticed I couldn't obtain the isolated consumption of chillers for example. In meter, chillers' electric consumption is together with other consumptions, in Cooling:Electricity I think. But I only want chillers' consumption separated from the rest. How can I obtain it?

Thanks