WOS 8 is a heat transfer station (in Dutch: warmte overdracht station) for Leidsche Rijn, an extended borough of the city of Utrecht. The water cooling the turbine fans of the large UNA power plant, about a kilometer away, contains enough energy to supply all 11.000 dwellings in Leidsche Rijn with heat and warm water. Before, this energy was dumped as waist heat in the Amsterdam-Rhine canal. Now, it will be recycled and put to use. The size of WOS 8 is determined by the minimal functional dimensions of the system of pipes in the interior to keep it as small as possible. Due to the internal organization, the south side didn't require the full height. Here, some manipulations of the volume were imaginable, including the insertion of a series of climbing grips, spelling the text 'The Blind Façade' in braille. It even accommodates nesting boxes for several species of birds.