The Institute for Advanced Architecture of Catalonia designed the Endesa Pavilion, as part of the Smart City Expo in Barcelona, Spain. According to the architects: The project is an exercise in which a building, under the guidance of the block type of Barcelona, is adapted by adding a series of modules on its facade. These modules, which are seen as triangular pieces section, make possible for the building to optimize energy and spatial intelligence. Its size and components vary depending on the orientation and inclination of the sun, the relationship with the environment and other technical needs.