SIA Energy Efficiency Path (SIA 2040)

Do you want to realise your real estate project in conformity with the goals of the 2000 Watt Society? Or are you looking for an accounting methodology that covers all of a building's energy needs over the course of its entire life cycle?

The SIA Energy Efficiency Path guideline (SIA 2040) derives target values from the energy reduction path proposed by the 2000 Watt Society for a building's non-renewable energy needs and greenhouse gas emissions. The guideline also distinguishes itself in terms of the fact that grey energy and local mobility options are included in the evaluations along with operational energy.


We would be delighted to accompany you from the first preliminary study to project planning in order to ensure that your real estate project is compatible with the 2000 Watt Society's objectives for 2050. Using the SIA guideline as a basis, this is an option in various building categories (e.g. homes, offices and schools) both for new buildings and renovations.

At your request, we would also be happy to accompany you after project realisation to monitor compliance with the projected values.


Thomas Blindenbacher


Phone +41 44 305 91 11


Gilles Desthieux (Genève)


Phone +41 22 749 83 24


Perla Colamesta (Lausanne)


Phone +41 21 557 23 78