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ResStock occupants' behaviour

asked 2025-11-20 14:56:14 -0600

Gio_GG's avatar

Hi !

When I generate a model with "openstudio path/to/openstudio.exe /path/to/run_analysis.rb -y -u upgrade_name -m" (from the ResStock library) and then run energyplus simulation I got a surprising evolution of the parameter "Zone People Occupant Count" in the conditionned space (for 2 people). Here is the evolution for the first 16 timesteps (15min) :

[2.0, 2.0, 2.0, 2.0, 2.0, 2.0, 1.466, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 0.466, 0.0, 0.534]

I have some doubts on the in.schedules.csv file (generated with run_analysis.rb) because the first 16 timesteps (15min) :

[1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 0.733, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.233, 0.0, 0.267]

Should I expect this result of in.schedules.csv ?

Thanks for your help !

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answered 2025-11-20 15:39:29 -0600

rajeee's avatar

This is expected behavior. While the occupancy schedule is natively generated at a 15-minute resolution, OS-HPXML applies a random shift of +-30 minutes to create diversity and avoid spikiness. This shift causes schedule changes to occur mid-timestep rather than aligning with the 15-minute simulation edges. As a result, the value reported for those transition intervals is a time-weighted average, which appears as a fractional number.

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Perfect ! Thank you for the answer.

Gio_GG's avatar Gio_GG  ( 2025-11-21 11:44:02 -0600 )edit

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Asked: 2025-11-20 14:56:14 -0600

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