This research project analyses the correlation between different types of tele-working and the overall energy efficiency of the society. New types of working have increased the energy consumption in the past few years. However, rigorous structural changes of the physical and virtual infrastructure of the society (buildings, transport and IT systems) have the potential by using these new parameter to increase the energy efficiency of the society. The conducted studies in this research project analyzed the energetic structures of typical service companies consisting of residential and office buildings, transport and IT systems and evaluated the potentials to increase the efficiency. External experts in the area of sociology, transportation and IT were involved.