How do I model Electrochromic Glazing in EnergyPlus?

You can use the WindowProperty:ShadingControl object to do this.

This tutorial discusses how to do this in OpenStudio.

answered 2015-02-11 20:13:51 -0500, updated 2015-04-06 11:24:41 -0500

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There are a ton of fields that aren't exposed, even in the API (as far as I can tell). Particularly, Setpoint isn't exposed, and your script does not set a value. EnergyPlus does not have a default for this field. out.idf ends up having 100 W/m², I guess OpenStudio has a default for that.

Did I just miss how to assign a different setpoint in the API? doc here

Julien Marrec (2015-09-08 11:46:42 -0500) edit

The OpenStudio ShadingControl is intentionally limited to what we can support in both EnergyPlus and Radiance. If you want to fiddle with the options that are available in EnergyPlus (but not yet OpenStudio's Radiance measure) you can create an EnergyPlus measure to run after translation.

macumber (2015-09-08 12:04:43 -0500) edit

I found another way of fiddling but maybe it's not a good idea? here

Julien Marrec (2015-09-08 12:10:54 -0500) edit

@macumber or @Julien Marrec Can you provide guidance on how to adjust the Shading Control settings (in particular the Setpoint) using an EnergyPlus measure in OpenStudio?