This invention describes a new form and structure of silo for storage, that allow a softer handling of the same, reducing this way losses for damaged grain and 4 allowing humidity and temperature control at a low cost; consisting of a solar hexagonal silo of type consisting of an hexagonal prism in a horizontal position that has vertical hexagonal bases and six lateral faces, stipported by its vertical lateral faces perpendicular to the bases, containing in its interior two plates at an angle, characterized in that in comprises