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A comment on Scientists begin building highly accurate digital twin of our planet. Parent comment

Re:Scientists begin building highly accurate digital twin of... by saeranv on Thursday February 25, 2021 @01:28PM (#26266257)
Interesting, I have a couple of questions:

- How do model random variables with high variance like occupancy or equipment use? Are you using sensor/monitoring equipment or just trying to model it as best as you can?

- Did you guys use the initial energy model (built by by the design/consultant team) or do you guys build your model from scratch?

- What energy simulation engine do you guys use? I'm just curious if there's any big advantage between the engines for digital twin applications.

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Re:Scientists begin building highly accurate digital twin of... by thisisbrians on Friday February 26, 2021 @11:24AM (#26276440)
- We use a ton of empirical time series data from the building to calibrate the model.

- There's almost never a model. We build it from scratch in every case.

- We have a highly customized fork of EnergyPlus. They are all difficult to use in our experience, but EnergyPlus allows us to get the detail required for our needs.

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