Library filed under Noise from UK
Unlike other forms of variable noise, however, such as railways and aircraft, it [turbine noise] can continue for very long periods at a time. The nature of the noise - a rhythmic beating or swooshing of the blades - is also disturbing. UK noise limits permit turbines to be built so close to houses that sleep impacts and associated health effects are almost inevitable.
"This is a giant experiment and without an enforceable noise condition Methil residents are being sacrificed as guinea pigs." Korean giant Samsung Heavy Industries will build the three-bladed 7MW test turbine 48 metres into the Firth of Forth, at 196 metres high.
Britain's biggest onshore wind farm, in North Devon, could be operating well above permitted noise levels in every location where readings were taken, a new report claims.
Guy Glencross hates the sight and sound of his new ‘neighbour' - a 20-metre wind turbine, 90 metres from the front door of his rural Co Tyrone home. Night and day, he claims, the two-blade "monstrosity" assails his ears and eyes - and those of his partner Julie - so much so that they moved from their former front bedroom to the smaller one at the back when the turbine was erected in September.
The plant's operator has released data from a monitoring exercise which showed five of the 12 measured locations were noisier than Government maximums. But in a study to verify the data, acoustic specialists say the firm has not factored in an extra audible "hum" which would push all the readings above the maximum.
Dick Bowdler, a member of the IOU who is not involved in the study, said noise level limits and health effects should have been taken into account as part of the new guidance. The acoustics consultant pointed out that this is not only essential for planning a wind farm, but for compensation if it is built.
In his latest report Dr Hanning said: "Industrial wind turbines emit a unique impulsive noise pattern, described as thumping, swooshing and rumbling. It contains a large element of low frequency noise which travels further and penetrates buildings more easily than high frequency sound.
The developer carried out its own noise risk assessment but the council has appointed an independent noise expert to assess the risk of noise pollution at the site. NoPilrow spokesman David Maund said: "It is good Sedgemoor is taking the issue of noise seriously.
Although the full results from a measurement exercise are not expected until Friday, preliminary findings indicate that noise levels from some turbines are slightly above the limits set within the planning consent, in certain wind conditions.
A provocative investigation claims thousands of people are falling sick because they live near them. The symptoms they claim to have suffered may vary – including dizziness; increased blood pressure and depression – but the theme remains the same.
The school had been warned when it was granted planning permission in 2009 that if noise were to become an issue the turbine may have to be decommissioned. Specialist engineers had worked with the school over a period of about eight months to try to reduce noise, but modifying the blade tips and even shortening the blades themselves had little effect.
This useful analysis examines many of the key issues raised before the Courts in the United Kingdom regarding wind turbine noise nuisance cases. An excerpt of the paper is provided below. The full report can be accessed by clicking on the link at the bottom of this page.
This important document critiques the ETSU-R-97 environmental assessment of noise from wind turbines in the United Kingdom. The ETSU-R-97 was written by a Noise Working Group (NWG) set up in 1995 by the Department of Trade and Industry through ETSU (the Energy Technology Support Unit). The noise policy is still in effect today and followed by wind developers outside of the United Kingdom.
This brief filed by sleep expert, Dr. Christopher Hanning, reviews the potential consequences of wind turbine noise and, in particular, its effect on sleep and health and to make recommendations with regard to minimum setback distances. Dr. Hanning considers whether, in the absence of new national guidance should there be minimum or recommended separation distances between commercial scale wind developments and residential properties and other sensitive developments?”
The study released Tuesday by the Massachusetts Department of Environmental Protection shows that the Wind One industrial turbine in the Cape Cod town of Falmouth produces noise louder than the state allows. The report marks the first time the state has recommended a shut-off of a wind turbine.
Residents in Palgrave say work to decrease the noise from the village community centre's controversial wind turbine has not worked. The turbine was switched off for two months while the community centre worked to reduce the noise emitted by the 24-metre high turbine.
North Devon Council has received more than 20 complaints from residents living around Fullabrook wind farm, between Barnstaple and Ilfracombe. It is operational, but noise monitoring cannot be carried out until the wind farm is officially commissioned. That was supposed to happen in October, but has been repeatedly delayed.
He said the noise from the 66-megawatt farm, which is yet to operate at capacity after extensive testing since it was opened last October, has left him a mental wreck, unable to sleep because of the "thudding" noise and liable to burst into tears for no reason. Noise testing at the site is not due to start until next month.
Nick Williams said he and other residents were suffering increased stress levels because of delays in officially commissioning the site. The delay meant that complaints about the noise could not be officially investigated. Until the wind farm is officially commissioned, the environmental health team at North Devon Council said it was not legally allowed to carry out noise checks.
"This has been worse than fighting cancer," said Jane. "With cancer, all of the professionals are on your side and in the first year of this, in 2006/07, we felt we were up against a brick wall. In 2007 a noise report came out and it said the problems we were having did exist.