| Denuncian el “ruido” provocado por el parque eólico. |
(2489) |
| ASOCIACIÓN DE VECINOS EN PRADALES. SEGOVIA. ESPAÑA. |
| Existe una preocupación por la “contaminación acústica” que producen los aerogeneradores, la seria alteración del paisaje que afecta al hábitat de la población del buitre y otras aves de la zona. Y el deterioro de los montes, sobre todo al pino y al roble, producido por las obras de infraestructura para la instalación de los propios aerogeneradores en las lomas cercanas”. |
Preocupación por una posible “contaminación acústica”
J. H. - Pradales - 02/08/2005.
* Publicado en el periódico El Adelantado... (Enlace...)
Pradales esta ubicado a 85 Km. al NE de Segovia, cerca de la carretera N-I, entre Carabias y Aldeanueva de la Serrezuela.
* Imagen extraída de... (Enlace...)
* Mapa de la región... (Enlace...)
La asociación de vecinos de Pradales ha dirigido sendos escritos al Ayuntamiento y a la Junta de Castilla y León, exponiéndoles sus quejas, y exigiendo una solución a los problemas que le causa el parque eólico. Los problemas no son sólo por la mala recepción de la señal de televisión, sino que denuncian que el ruido que producen los aerogeneradores “es muy elevado, por lo que se está produciendo una contaminación acústica importante”.
El procurador del PSOE, Ángel García Cantalejo, y el senador, Arturo González, visitaron Pradales y los anejos de Ciruelos y Carabias, donde se reunieron con los vecinos y escucharon sus quejas. Para estos vecinos es evidente la alteración del paisaje, “ya que los aerogenadores están ubicados en una loma”, y también consideran que puede afectar al hábitat de la población del buitre y otras aves de la zona. Los vecinos observan asimismo “el deterioro de los montes, sobre todo pino y roble, producido por las obras de infraestructura y por la instalación de los propios aerogeneradores”.
El PSOE explica que los vecinos están esperando una respuesta de la Junta a su escrito remitido el 13 de mayo.
“Los representantes vecinales han dejado claro que no se oponen a la obtención de energías alternativas, pero consideran que hay que hacerlo con instalaciones que no perjudiquen a los habitantes de la zonas donde se ubican”, afirman.
Ángel García Cantalejo considera que los vecinos de Pradades tienen derecho a estar perfectamente informados, y a que se les solucionen los problemas que denuncian. “Es perfectamente compatible el desarrollo de nuevas energías con el mantenimiento de una vida tranquila en un paraje precioso como es el de Pradales, sólo hay que preocuparse un poco, y la Junta no lo ha hecho en este caso”, añade.
Información relacionada y alojada en Ibérica 2000:
* First International Conference on Wind Turbine Noise (Enlace...)
* Energía eólica - enlaces a los artículos de Mark Duchamp
* Energía Eólica. ¡No es lo que nos Venden!
| Insertado
por: pamelaamaya (02/08/2005) |
| Fuente/Autor:
El Adelantado. Segovia. |
Valoración
Comentarios
* Esta carta fue publicada en el Sheffield Telegraph. La Señora que escribe ha abandonado su casa porque no puede aguantar el ruido de los molinos. Su casa no encuentra comprador. Estima que ha perdido 250.000 libras ( unos 300.000 €), de momento.
Tengo otra carta escaneada de un agente inmobiliario de Reino Unido que dice a un cliente que no puede vender su casa, porque hay un proyecto de parque eólico que la afectará. Y esto no se puede esconder a los compradores. (Pedirmela si la quieren...)
* Abandoned home because of wind farm
My attention has been drawn to a letter from one Jeff Rice, printed on April 18 in the Sheffield Telegraph.
As I am Jane Davis, I hope you will allow me the time honoured right to reply to this gentleman's statements.
Noise pollution from the Wind Farm 930 metres from our home has indeed caused us to abandon our home and rent a house 5 miles away.
Not an easy decision to make when your home is on your farm. Noise monitoring equipment had been installed at our home and found breaches of the planning condition on 50% of the time. A second more recent set of monitoring carried out by the Local Council in October 2007 found three breaches of the planning condition (in a 27 hour
period) but no statutory noise nuisance was proven at the time.
Subsequently (and AFTER the BWEA had sent a statement out saying we had no noise issues) it transpired that October 2007 recorded the lowest wind speed across the whole of the UK thus "our" wind farm was only operating at 11% across the whole month of its installed capacity. (These facts would have been known by the Wind Farm Developers but they chose not to inform the Council at the time……………………..)
The Local Government Ombudsman has only yesterday decided that our situation needs proper investigation, with all facts available to all parties and this is to happen in the near future. She is however concerned that the planning condition for noise "put in place to protect local residents" and based on the industry standard ETSU-R-97, is "Vague, open to interpretation, immeasurable and thus unenforceable". Her judgement obviously has significant ramifications for every wind farm application (and operating wind farm) in the country, and her comments will be taken very seriously by DEFRA, BERR, CLG and the
Parliamentary Ombudsman. After all there isn't a lot of point in having a planning condition in place if you cant measure it and cant enforce it is there? We already know that the Noise Working Group at the then DTI announced last year that "Aerodynamic Modulation (AM) from wind turbines is very limited in terms of the number of people
affected. BUT it also concluded that the causes of AM are not fully understood and that AM cannot be predicted using current state of the art.".
Therefore no developer can guarantee that no noise will emanate from their turbines, and as we have already seen, no planning condition can be put in place, using the current preferred standard, that can be enforced.
Yes I do tour the country, and indeed tonight (April 19th) we are in Cumbria, and yes I do tell (and let people hear) what has happened to us. The recording we use is of the noise from the turbines heard at our house (which we are often accused by such as Mr Rice as manufacturing). But this is freely available on CD to anyone who wishes to do a Freedom of Environment Information Request to South
Holland District Council. We know we are not the only family to suffer in this way, and we certainly don't want others too!
I can categorically state that we are only paid for our travel. Sometimes people give us a donation, but this is and has never ever been requested. We declare our expenses received against mileage and train tickets etc.
No one pays us. We do not belong to any groups. Currently our estimated financial loss to date (given that our home is deemed unmarketable by local agents) is around £250,000 and climbing.
Finally we are not funded by any mysterious "backer". And we are prepared to swear this on oath.
I hope that this clarifies the situation for your readers and maybe they would like to question why Mr Rice has found the need to invent such scurrilous accusations about people he has never met.
Jane Davis, Spalding, Lincs |
| Nombre: Mark Duchamp (05/07/2008) |
E-mail: markduchamp2@hotmail.com |
| |
* Los aerogeneradores son tan silenciosos que se investiga dispositivos que reduzcan el ruido que emiten.
Aquí tenéis la noticia, en inglés:
* [This from a web site called Young Germany that appears to be aimed at students studying or aiming to study in Germany.]
" Negative vibrations: Fraunhofer develop "anti-noise" to silence wind turbines
If wind turbines clatter and whistle too loudly, they are only permitted to operate under partial load to protect the local residents – but this also means a lower electricity output. An active damping system cancels out the noise by producing counter-vibrations.
If wind energy converters are located anywhere near a residential area, they must never become too noisy even in high winds. Most such power units try to go easy on their neighbors' ears, but even the most careful design cannot prevent noise from arising at times: One source
of noise is the motion of the rotor blades, another is the cogwheels that produce vibrations in the gearbox. These are relayed to the tower of the wind turbine, where they are emitted across a wide area – and what the residents hear is a humming noise.
"People find these monotone sounds particularly unpleasant, rather like the whining of a mosquito," says André Illgen, a research associate at the Fraunhofer Institute for Machine Tools and Forming Technology IWU in Dresden. If the wind energy converters hum too loudly, they are only permitted to operate under partial load: They
rotate at a slower speed and generate less electricity. In some cases the operators have to install additional damping systems or even replace the gearbox – an expensive business. However, the effectiveness of the passive damping systems used until now is somewhat limited: They only absorb noise at a certain frequency.
Since modern wind energy converters adapt their rotational speed to the wind velocity in order to generate as much electricity as possible, however, the frequency of the humming sound also varies.
Despite noise attenuation measures, humming noises penetrate the surrounding area.
In a joint project with colleagues from Schirmer GmbH, ESM Energie- and Schwingungstechnik Mitsch GmbH and the Dr. Ziegler engineering office, IWU researchers have developed an active damping system for wind turbines. The project is being funded by the "Deutsche Bundesstiftung Umwelt". "These systems react autonomously to any
change in frequency and damp the noise – regardless of how fast the wind generator is turning," says Illgen. The key components of this system are piezo actuators. These devices convert electric current into mechanical motion and generate "negative vibrations", or a kind
of anti-noise that precisely counteracts the vibrations of the wind turbine and cancels them out.
The piezo actuators are mounted on the gearbox bearings that connect the gearbox to the pylon. But how do these piezo actuators adjust themselves to the respective noise frequencies? "We have integrated sensors into the system. They constantly measure the vibrations arising in the gearbox, and pass on the results to the actuator
control system," says Illgen. The researchers have already developed a working model of the active vibration dampers, and their next step will be to perform field trials."
Source: www.fraunhofer.de |
| Nombre: Mark Duchamp (17/08/2008) |
E-mail: markduchamp2@hotmail.com |
| |
|
