"Die riesigen Luftvolumen des Gebäudes werden grösstenteils durch aktivierte Bauteile mit Hilfe von 50 Erdsonden in 100m Tiefe im Sommer gekühlt und im Winter beheizt."
Erdsonden are ground heat exchangers. Aktivierte Bauteile has nothing to do with radioactivity.
Erklärung: Thermally activated building elements for cooling
i.e. concrete ceilings with heating/cooling pipes layed in the concrete, which use the concrete as an area that gives the heat or cold to the room
Erklärung: Thermally activated building elements for cooling
i.e. concrete ceilings with heating/cooling pipes layed in the concrete, which use the concrete as an area that gives the heat or cold to the room