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Renaissance Concerto Technical and meet in Valdespartera. Debate on sustainable urban

Tuesday, 11 May, 2010 - 10:17

Zaragoza, Wednesday, May 5, 2010 .- A project nearing completion of the European Renaissance, which participates Zaragoza, near the French city of Lyon, and the Italian region of Lombardy, bioclimatic criteria to apply to the construction and housing rehabilitation, the capital of Aragon held on Thursday 6 May, an international meeting aimed at developers and technical Zaragoza and Lyons to discuss the criteria for sustainable building.

The seminar, which took place in Valdespartera, wants to facilitate knowledge and the relationship between the parties concerned and, above all, intended that companies and technicians can share their experiences and enrich their projects and findings. "We want that the entities that have materialized the project are related, because it will be how to ensure that they continue along that route, specializing and providing similar solutions in other parts of Europe," said Councillor for Environment and Sustainability, Lola Campos .

Practical solutions

Renaissance was defined from the outset as an appropriate way to find practical solutions to local energy needs. So innovative solutions have been implemented in the three areas that have participated (Zaragoza, Lyon and Lombardia), sharing experiences in the implementation of two new districts, created on the basis of bioclimatic building, renewable energy use to address public needs for energy and the rehabilitation of buildings with these same criteria, as well as encourage research, training and dissemination of these criteria.

This program, embedded in the Concerto initiative, and provides results that are to be extrapolated to other parts of the EU, and also has advanced to the forms of action that will generalize the EU in the coming years. In fact, the Renaissance project work based on energy savings, the use of renewable and bioclimatic criteria when building or restoring a home, has been a forerunner of the spirit of the Technical Building Code designed to save 40 % in the homes of new plant and 30% for rehabilitation.

Renaissance has also been the embryo of new rules that generalize the EU in 2020, and which will require all buildings to be self-sufficient from the point of view of energy. "In this way, Renaissance has also managed to bring to fruition all the efforts we put on paper, outlining new rules and procedures that should lead to greater sustainability in our cities" Campos stressed.


In Zaragoza, the Renaissance project has allowed to build 616 homes in Valdespartera with bioclimatic criteria and a monitoring center, for the results and behavior of these buildings. In addition, rehabilitated 360 housing Picarral integrated into a residential complex created between 1945 and 1960. This action, which has functioned as a distinguishing element of Zaragoza, has played a major role in this experience, linking energy innovation in the field of restoration of buildings. Finally, it was decided to bring these new guidelines in building a public building, such as Candide Sunday school, also in the Picarral, generating savings and welfare gains to the education community working in this center.

In the realization of this project, the University of Zaragoza has also had an important role through the support given by the Energy and Construction Group

Rehabilitated in Picarral

In the 360 Picarral housing, jobs, housing has led Zaragoza, have been based on improving the insulation of roofs and facades of buildings, replacing gutters and carpentry and introducing renewable energy through the placement solar panels on roofs, to ensure the production of hot water and photovoltaic panels to produce electricity. It also has been used to remove architectural barriers of these buildings, installing elevators. In the same way it has centralized water system and heating and gas meters, water and electricity.

Residents in these homes have also received information and training to use the new devices from their homes, so that you can record a savings of 46% heat and 23% power savings. This result will fail to deliver 927 tons of CO2 into the atmosphere.

New Homes in Valdespartera

Housing Zaragoza also been fully involved in this project, creating 616 new housing bill in a neighborhood that already distinguished by their bioclimatic purposes. In this area, and get a 54% savings and 41% thermal power savings. This dramatic reduction of dependence on conventional energy is achieved by the orientation of buildings, placement of screens against the prevailing winds, water saving irrigation, the realization of flat to facilitate the placement of solar thermal panels, and the use of insulation, among others.

Moreover, correct usage of the elements that characterize these houses is an accentuation of the savings. For example, the correct use of glass galleries in the south facade can save 27% of energy during the winter. The placement of curtains in these galleries in the summer leads to energy savings of 25%, although not suitable for winter use.

When combining all the actions planned to make efficient use of the building and property compared with the same characteristics that meets the Technical Building Code, you can achieve savings of up to 60%.

Also in Valdespartera rose a monitoring center that aims to raise awareness and educate citizens about bioclimatic buildings, allowing to compare the results of these with the traditional. The results are known the data provided by studying the temperature and humidity sensors that send records also allow ventilation and to know the behavior of the floors. The center itself is an example of bioclimatic building, providing a saving of 37 tonnes of CO2.

Adequacy of school

In the same way it wanted to include a primary school in Zaragoza experience to bring the benefits of alternative energy to a public building. Like the houses have been rehabilitated, the school is located in the neighborhood of Picarral. The facility was built in 1970 and expanded in 1989. The intervention has been developed has been to improve the isolation of the school, acting both in the outer wall, as in the replacement of windows and placement of the ceiling on the porch. We have also installed solar panels on the roof with a power of 18 kw.

In the same way it has developed a program of awareness and environmental education aimed at the education community and families through the environmental education program Stop CO2.

With this rehabilitation is estimated to have achieved a saving of 51.4% saving in energy demand and savings of 171 MWh, representing prevent discharge into the atmosphere 49 tons of CO2 per year.

The sum of the effects of the three projects that have been developed in Zaragoza will prevent 5,000 tons of CO2 will be discharged into the atmosphere each year.