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Research project

OpEEr – Benefits of room temperature controllers

Studies on individual room control and the so-called self-regulating effect (ErrEnEff project) were extended from single-family houses to multi-family houses. Three different room temperature control variants were evaluated and compared in terms of final energy demand, living comfort and economic efficiency. For this purpose, a reference building that corresponds to an average Swiss apartment building, was designed in IDA ICE. Parallel to the room control, the differing heat demand of apartments at the top and on the ground floor compared to apartments in the middle was also investigated for the case that they have identical or differing room temperature set points.


OpEEr is supported by the Swiss Federal Office of Energy (SFOE).

Final report (PDF, German)

Clima 2019

Contact:  Daniel Philippen

Duration: 01.05.2017 - 31.08.2018