Solar design

thumb|right|A sunroom in Hatoyama Hall, [[Tokyo, Japan]]

glass with electrically switchable opacity

municipal library in Helsinki, Finland

architectural element that transmits light for the purpose of illumination

achieved with greatly differing technologies that collectively accommodate a wide range of needs; allows excess thermal energy to be collected for later use

passive solar building

daily and seasonal arc-like path that the Sun appears to follow across the sky as the Earth rotates and orbits the Sun

any cooling method that facilitates heat dissipation without additional energy input

building in Freiburg im Breisgau, Germany

passive solar building technology

housing community in Freiburg am Breisgau, Baden-Württemberg

villa near Verona, Italy