Sol House / Alexander Brenner Architekten | ArchDaily

"...The generous projecting southeastern roof as well as the continuous loggias located in front on the upper and ground level provide protection against the heat in summer, but allow passive solar gains when the sun is low in winter. The whole house is heated by means of a geothermal system, whilst solar heat is used for the production of hot water and the heating of the pool. Photovoltaic installations provide the required electricity...."