La Poste, through its subsidiary La Poste Immobilier, has just won eleven awards, including 3 for sites in Auvergne-Rhône-Alpes – Caluire-et-Cuire (69), Clermont-Ferrand (63) and Argonay (74) – during the 2021-2022 edition of the Cube energy saving challenge. Among the winners of AURA is the postal site of Caluire-et-Cuire (Rhône), which won a Golden Cube for its energy efficiency works, which allowed it to save almost 60% compared to the average consumption of the previous 3 years. The 1,304 m2 building houses a post office, mail center, highway code examination centre, Pick-Up locker and 15 VAE sockets. The Clermont-Ferrand Saint-Éloi site (Puy-de-Dôme) obtained a Silver Cube, with energy savings of almost 20%. Organized by the French Institute for Building Performance (IFPEB), Cube is a competition for energy savings and the reduction of greenhouse gases in tertiary, public and private buildings.