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OS building end use demand meter

asked 2020-04-02 10:12:59 -0600

updated 2020-04-02 11:15:43 -0600

I need to gather hourly data of building (not by thermal zone or space) energy (kWh and terms) and demand (kW) by end-use (i.e. lighting, heating, cooling, fans, etc). I see that the .mdd file (as well as an Add Hourly Meters measure on the BCL) allows us to gather hourly data in J (which is find I can post-process) for energy use (kWH and therm) by demand for building end uses, but I don't see an option to add end-use demand meters. Does anyone know of another way/trick to produce meters or variables that report whole building demand by end-use, preferably within OpenStudio and not running the IDF in energyplus?

I know I can add output variables for end-use demand (kW) but the hourly data is output per thermal zone and I have some large models with many thermal zones and would prefer not to post-process to this extent or be required to run energyplus.

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answered 2020-04-02 11:09:16 -0600

updated 2020-04-02 11:11:44 -0600

You could generate the output meter for end-use energy, then post-process the meter data to divide by the reporting frequency to get the end-use demand. For example, if your output meter was 1,000 kWh and it was reported every 15 minutes (0.25 hours) to match your simulation timestep, then the demand would be

$$ \frac{1,000 kWh}{0.25 h} = 4,000 kW $$

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Asked: 2020-04-02 10:12:59 -0600

Seen: 106 times

Last updated: Apr 02 '20