OpenStudio to BEopt
I have a preexisting model in OpenStudio but would like to give BEopt a shot. Is it possible to import the files across interfaces?
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It is not possible to bring a model from the OpenStudio app into BEopt. The OpenStudio app is a general-purpose application that closely mirrors the EnergyPlus inputs and helps you create a single model in great detail. BEopt, on the other hand, is very tailored towards modeling residential buildings using higher-level geometry and other inputs, and helps compare many different design alternatives.
The only connection that exists is that you could technically import any of the BEopt design alternatives into the OpenStudio application, because BEopt creates OpenStudio models behind the scenes as part of running EnergyPlus simulations.
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BEopt does not by default create the *.osm file but you could change args['debug'] = debug to args['debug'] = true on line 66 of C:\Program Files (x86)\NREL\BEopt_3.0.1\Workflow\run_simulation.rb to get it. If there is interest from users, we could consider a BEopt setting in the future to allow the OSM to be generated.
Is this a methodology that would allow the OSM to be generated and calibrated to be compliant with BPI-2400?
That's correct, 3D geometry from BEopt v3 is not currently preserved in the OpenStudio model. BEopt uses OpenStudio-HPXML to produce the model, and the OpenStudio-HPXML project has some documentation regarding geometry here.
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