The BuildingSystems library supports a detailed modelling
of real building energy systems. The structure, the physical behavior
and the functionality of a real system can be reflected by a so called "Digital Twin"
(The used method is described in
Good understanding of complex building energy systems by using sub models on multiple hierarchy levels.
Use of virtual sensors for comparisons with the real technical system.
Image source: Team Rooftop
Real technical system
Rooftop building from the Solar Decathlon Europe 2014.