IaaC was represented by Rodrigo Rubio tonight at the Roca Gallery Barcelona that hosted a conference regarding Self Sufficient Energy, and in particular the Case of the Solar Decathlon in Catalonia. The evening was kicked off by Georg W. Reinberg who gave an introduction entitled “Towards an efficient and productive Architecture”. A series of projects and prototypes were then presented among which the Fab Lab House developed in IaaC for the Solar decathlon 2010 held in Madrid. Other projects presented included: Torsten Masseck (Low3); Jordi Mitjans, Adrià Vilajoana, Bernat Colomé, Martí Obiols, Guillem Ramon Pernau, Sara Ferran, (ETSAV). This was the first session of a Series of conferences that will be held at the Roca Gallery Barcelona all regarding the theme of Efficiency in Architecture.