BIQ is the first building in the world to have a bioreactor façade. Microalgae are cultivated in the glass elements that make up its “bio skin”. These are used to produce energy, and can also control light and provide shade. Inside, an innovative living concept is aimed at ensuring maximum design versatility for everyday life, and gives us a glimpse into urban life in the future. The sides of the building that face the sun have a second outer shell that is set into the façade itself. Microalgae – tiny plants, most no larger than bacteria – are produced within this shell. They enable the house to supply its own energy. The only thing that the algae have to do is simply to grow. They are continuously supplied with liquid nutrients and carbon dioxide via a separate water circuit running through the façade. With the aid of sunlight, the algae can photosynthesise and grow. The algae flourish and multiply in a regular cycle until they can be harvested. They are then separated from the rest of the algae and transferred as a thick pulp to the technical room of the BIQ. Afterwards they can be fermented in an external biogas plant and thus re-used for the generation of biogas.