The Catalan Institute of Energy (ICAEN) has achieved the million energy certifications of processed buildings, a figure that accounts for almost 25% of the park of buildings in Catalonia and that allows to begin to develop a significant profile of the energy performance of buildings of the country. Thus, 82% of the buildings have the least efficient E, F or G energy rating, and the main conclusion is that the need to bet on energy rehabilitation is demonstrated in order to reduce energy consumption and improve habitability in real estate. Buildings account for 26.4% of final energy in Catalonia, and account for 10.6% of CO2 emissions.
Of this one million certificates issued, 992,381 correspond to existing buildings. 51.9% of the buildings have obtained an energy rating of CO2 emissions E, 13.1% F and 16.9% G, the least efficient ones. This is due to the aging of the housing stock of Catalonia: more than 40% of the homes built in Catalonia are before 1980, when the first regulation on thermal insulation in buildings came into effect in the State, and which had a direct impact on your energy needs.
Regarding the 7,619 newly-built buildings that have been certified, 36.1% have achieved the energy rating of CO2 emissions A and 41.4% of the B. This is because they have been built with Most demanding regulations in terms of energy efficiency. In this sense, the application of increasingly efficient technologies and the fact that the environmental criteria and the reduction of the cost of energy consumption have acquired a greater weight in the building in recent years have facilitated the improvement of the energy behavior of buildings .
According to data from ICAEN, a building with the energy rating A has a saving in the average energy consumption of up to 89% compared to the same with the G rating, and 78% The same as the E rating, which is the most numerous. In addition to the reduction of energy consumption, with the reduction of the impact on the environment and the saving on the receipts it entails, the energy rehabilitation of the buildings also implies advantages such as the revaluation of the building or the building, Elimination of health problems, and contributes to generating jobs.
The data extracted from the first millions of energy certifications processed by ICAEN have been known during the Rehabilitation (Rehabilitation Week), the technical and citizen workshops on the rehabilitation and maintenance of buildings, It was held in Catalonia from October 7 to 11, which also addressed the need to extend real estate reforms to the realm of energy. In fact, the analysis of energy certifications reveals that 48.8% of the certifications have been processed in order to rent the property and that 47% have done so to sell it, while only one 4% have done so for a voluntary improvement of the energy efficiency of the building.
