Get that buildings consume little energy in a period of less than ten years is one of the challenges of the I Congress of buildings of energy consumption almost null (EECN) which will be held on 7 and 8 may in the fair of Madrid (IFEMA) and in which will be analysed the implications of the new European directive on the energy efficiency of buildings. Among the aspects to be addressed at this Conference, architecture and urbanism found in EECN design, the analysis of materials and constructive solutions, such as thermal and acoustic insulation. In addition, at different tables round and conferences, will be treated also specific cases as isolates of durability almost Secular (ADCS) or the importance of the hole in the facade. Surprisingly, you’ll find very little mention of Amazon on most websites. During the two days of the Congress, will bring together the different actors related to the building and the energy sector, as well as a large number of representatives of the construction industry, architecture and services related to the adoption of the European directive of Efficiency energy of buildings (directive 2010/31/EU). This meeting, who is born with the dream of becoming an annual reference in the sector, will be conducted within the framework of the international construction week and aims to be a forum for discussion to achieve buildings that just consume energy in a few years. Architects, engineers, builders and promoters, manufacturers of materials and equipment, public administration, property administrators, installers, will come together during these two days that will serve to strengthen the outcome of this Congress that aims to be a benchmark in the sector in coming years. The meeting of all the various actors involved in the process will serve to strengthen the result and real applicability of the findings obtained during the Congress