NEWS FROM WORLD: Global Warming News: great wind farm noise article

#renewable #green #windfarm #windturbine

Vinalhaven sits 15 miles off the coast and just over an hour's ferry ride from Rockland, but it has an old-fashioned sense of community rare on the mainland these days. Every driver waves as they pass and it's common for an islander to leave the keys in the truck in case anyone needs to borrow it.

It was with that sense of community that the islanders welcomed the three wind turbines to Vinalhaven last year. Not only did the turbines promise reliable electrical service, which was something long-term residents did not take for granted, but wind power would lower electric rates for everyone. Islanders turned out in strength last November to see the turbines started up, watch the 123-foot-long blades sweep the air and watch grade-school children do a windmill dance to the tune of "I'm a Little Tea-Pot."

Most of the 1,200 or so residents on Vinalhaven approve of the turbines. But within days of start-up a handful of Vinalhaven residents who lived within a mile of the wind turbines on the North Haven Road reported noise problems.

Nine months later, people have taken sides. Fingers are being pointed. Frustration levels are rising. There are rumblings about complainers and how they should move off the island if they don't like it. There are accusations of misinformation and biased noise data collection.

In Maine, the Mars Hill wind farm in Aroostook County and the turbines in Freedom in Waldo County have elicited similar complaints by nearby residents who say the repetitive whump, whump, whump sound of the blades turning causes sleeplessness and anxiety. Some research suggests those symptoms could be related to low-frequency sound waves that impact people as a pressure wave.

Sound seems simple enough: you hear it or you don't; it's audible or it isn't. It turns out that sound is far from simple: not only can a noise that is alarmingly loud to one person be a minor note to another, but some people appear to be affected by low-frequency sound-the bass notes-while others aren't. And the really low frequency sounds (below 20 hertz), the inaudible sound waves, which elephants and whales use to communicate over long distances, can travel hundreds of miles without fading. It's this silent sound that may make birds and beasts aware of earthquakes and tsunamis ahead of any apparent danger, and it may be the cause of a laundry list of human complaints that include sleeplessness, anxiety, exhaustion and depression.

Or it may not be. The jury is out.
Source: Free Press

Article comment by: suzanne sayer

Finally a well written article about wind turbine noises. It shows both sides and talks to some engineers/scientists investigation the issue.
My compliments to the author of the article!

If wind farm noise is an interest to you, read the entire article.