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Less noise and more solar energy: photovoltaic panels speakers

Noise pollution is a real problem that directly affects the quality of life of people, although it does not accumulate or have the same effects as other types of pollution, it does have consequences harmful physiological and psychological.


In recent years the issue of noise pollution has gained importance in recent years throughout Europe, so that the member countries of the European Union are committed to making noise maps and action plans to solve the excess noise in large cities, highways, roads, railways and airports. In Spain, Directive 2002/49/EC
requires Strategic Noise Maps undertaken must lead to the development of Action Plans by the government.


Innovative designs against noise

These initiatives result in a significant increase in investment in soundproofing. Thus, the current landscape is filled progressively from concrete screens, aluminum,
wood and transparent. However, there are alternative solutions developed with social and environmental awareness, but especially with creativity, because the
speakers are to be seen as an active component of environmental protection. They have great potential and can offer much more than just protection against noise.
A German company specialized in the field of noise protection, R. Kohlhauer GmbH, has been in charge of distributing the photovoltaic panels to create innovative
designs using different materials, which has established a new concept of multifunctional noise protection elements such as the Volta system, nominated in 2009 for the Prix Umwelttechnikpreis Technology and Environment convened by the Ministry of Environment of Baden- Württemberg. This system integrates photovoltaic cells, combining clean energy generation along with protection against noise. They have even built the photovoltaic panels baffle the world’s largest integrated in Freising, near Munich, with an area of over 6,000 m2.


The standard element of this line, Volta Opak, and represents a more sound insulation of 25dB, ASI has built-in module 103 manufactured by Schott Solar AG with a
nominal power of 103Wp, providing more efficient use in regions with + / - 50 ° south. That is, that can generate power by way of micro-network to meet local energy needs and specific (eg, lighting and road signs that are installed) and connect to the electrical network operators to provide the population of clean energy. Thus, according to the pay of Germany, the additional cost compared with a conventional baffle is amortized over a period of fifteen years.

Also, have gradually developed other products that are more flexible in terms of architectural design and composition, as Volta Thru, for applications for aesthetic require greater transparency and Volta bifaces, that having two faces can be oriented to the north and south, allowing more solar energy. All these elements, by having a standardized format of 3,960 x 1,000 mm can increase their effectiveness when combined with other systems developed Kohlhauer also: Plant, which consists of vertical structures of vegetation, and Scorsa with transparent screens. These solutions have a better acoustic performance, comply with the sustainability
agenda and the standards EN-1793 EN-1794 and set new trends, enable market growth and development of new technologies noise protection. Its effectiveness and popularity is such that individual projects have sprouted in Europe, especially Germany, Austria and Switzerland, which have represented an opportunity to integrate photovoltaic noise barriers with the environment and to reflect current architectural trends. 


Even as residents associations affected Freising Sonnenkraft EV promoted the construction of the big screen of Freising, which has led to other groups, such as AG-Jetzt Lärmschutz to work hard to build more solar speakers. The speakers are becoming modern high-tech walls and this evolution is possible only with a committed attitude to society and the environment, ie through the combination of harmonization of markets, the acceptance of standards, safety, environmental
legislation and new tecnologías. The speakers are not just a solution for sound insulation, but the beginning of a new generation of multifunctional and sustainable elements.


BY: Pamela Díaz Durán. Kohlhauer.

2012/09/28 by Gloria Llopis