Current tools for Co-simulation

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For the coupling of these three tools I suggest you use the BCVTB.

You can do runtime callback with EnergyPlus and Radiance using frads in Python.

A simple example goes something like this, here is a more detailed example.

import frads as fr

emodel = fr.load_energyplus_model("model.idf")
with fr.EnergyPlusSetup(emodel, weather_file="weather.epw", enable_radiance=True) as ep:
    ep.set_callback(controller)
    ep.run()