The globally compatible cooling system Cella integrates the storage of foodstuff into the living space. As a distributor of available energy, trays supply the cooling elements with water, electricity, (bio-) gas or a combination of these power sources. The cooling occurs in several ways: On one hand, it draws gas or electricity through an absorption principle. On the other hand, cooling is obtained through the evaporation of water. The system assures a natural handling of foodstuff and deals with subjects of sustainable usage of energy.