Located in Munich, Germany, Ener[gie]nger, Germany, was designed by peterlorenzateliers,The spiral begins at entrance of the Gienger showroom at the east of the building by means of a wide open projecting roof. Opposite, at the west side, a similar opening is put to use for the cash and carry wholesale store. The slanting external surfaces are fitted with both solar-thermal and photovoltaic panels. The latter of these could, in the course of new developments, be fitted with products which at the moment are still being devised. The outer shell is made up of solar panels, photovoltaic panels and metal and glass elements.
The architect has named the project Ener(gie)nger – a coinage of the words ‘energie’ (energy) and the name Gienger, the well established domestic engineering wholesale business. At the core of the exhibition hall are the various bathrooms on display, as well as the ‘educational energy trail’ – an exhibition of current installations and equipment belonging to the energy-saving sector. Since its introduction, this ‘trail’ has been accepted very quickly and intensively; it plays an important role in the understanding of technology, which in turn means that such technologies can actually be put to use.