Entries in wind siting rules legislation and policy (92)
10/28/11 Taking the problem seriously: Senator Lasee speaks out on behalf of those who will be most affected AND Fire in the belly VS Fire in the hole: Standoff on Lowell Mountain continues. Protesters stand firm
The video above shows wind turbine shadow flicker affecting homes in Fond du Lac County. Filmed by Invenergy wind project resident, Gerry Meyer
GET THE FACTS BEFORE MAKING SITING DECISIONS
By State Sen. Frank Lasee,
SOURCE Journal Sentinel, www.jsonline.com
October 27 2011
How would you feel if you or your kids started feeling sick? What if you or your kids suddenly started having headaches, ear aches, nausea, dizziness or couldn’t sleep well anymore in your own home and you knew it wouldn’t ever go away?
This is happening right now in Wisconsin. Families who had happy, healthy lives found themselves suffering illnesses that started after wind turbines were built near their homes. Scientific evidence indicates that there are health impacts that are associated with large wind turbines, many as tall as 500 feet. A bill that I introduced requires new safety setback rules based on health studies.
We aren’t sure why wind turbines seem to cause illnesses. Is it electrical pollution, radio waves, sound waves that are too low to hear, vibrations, shadow-flicker or noise?
We know some adults and children who live near turbines feel nausea, headaches, dizziness, insomnia, ear aches, agitation, and other symptoms – and their illnesses clear up when they are away from home.
Two families whom I represent have moved out of their homes because of illnesses they felt after eight wind turbines were built nearby; others want to move but can’t afford to. A Fond du Lac family abandoned their $300,000 remodeled farm house because their 16-year-old daughter developed intestinal lesions and was hospitalized for them. After they moved away, she recovered. Others have said that deer and birds they feed in their backyards disappear when the turbines turn, and they return when the turbines stop.
This problem isn’t confined to Wisconsin. There are studies coming from other countries and states that report health issues for those who are too near large wind turbines. These new wind turbines are nearly 500 feet tall, taller than 40-story buildings, and nearly twice as tall as the state Capitol.
To be fair to people who live in rural areas where turbines are being built, we need to find out what is “too close” and what distance is acceptable for the health of adults, children and animals. Right now, we don’t know. Right now, it depends on whether you are pushing for or against wind turbines or have to live near them.
The purpose of my bill is to get the facts before others are harmed. It requires that a “peer reviewed” health study address these health effects and be used by the state Public Service Commission to establish a safe distance for wind turbine setback rules.
People should be secure in their homes; they shouldn’t be forced to move because they are being made ill by something built near them. In Wisconsin, we owe our citizens more than someone’s opinion on whether their home is safe -whether their children are safe.
Wind turbines are causing real hardship for real people. Some can’t afford to move to preserve their or their kids’ health. Could you? Our government has a duty to know the facts and protect our citizens regardless of whether we are “for” wind energy or “against” wind energy.
State Sen. Frank Lasee, of De Pere, represents Wisconsin’s 1st Senate District.
The video above was recorded by Larry Wunsch, a resident of the Invenergy wind project in Fond du Lac County. Wunsch is also a firefighter and a member of the Public Service Commission's wind siting council. His recommendations for setbacks and noise limits were shot down by other members of the council who had a direct or indirect financial interest in creating less restrictive siting guidelines.
NEXT STORY: FROM VERMONT
PROTESTERS AND BLASTERS CONTINUE LOWELL STANDOFF
by Chris Braithwaite, The Chronicle, 26 October 2011 ~~
If a tree falls in the forest and nobody hears it, the old question goes, does it make a sound?
Here’s a more timely variation on the question: If you hold a demonstration in one of the most inaccessible places in the Northeast Kingdom, have you demonstrated anything?
There was a certain brilliance in the idea, dreamed up by opponents of the industrial wind project on Lowell Mountain, of planting a campsite on the western edge of Doug and Shirley Nelson’s farm, too close to the wind project to permit safe blasting.
But there was also a weakness inherent in the plan. It’s so hard to get to the campsite that almost nobody knows what goes on up there.
There’s great drama in the idea of determined demonstrators standing up to the high explosives that, as this is being written, are reducing four miles of remote ridgeline to a nice, level, 34-foot-wide gravel road.
But drama demands an audience. Without one, even the most daring and determined resistance risks becoming an exercise in futility.
Some of the demonstrators who climbed the mile-long trail to their campsite on Wednesday morning, October 19, were prepared to go down the mountain in police custody.
The stage, it seemed, was finally set for the confrontation with authority they were braced for.
It had been set up the Friday before by the wind project’s developer, Green Mountain Power (GMP). The big utility had gone to court and quickly obtained a temporary restraining order against the Nelsons and their guests. It ordered them to be 1,000 feet from the property line for an hour before, and an hour after, high explosives were detonated near the farm.
Blasting had proceeded on Monday and Tuesday, but at a safe distance that didn’t provoke any confrontation between GMP and the handful of demonstrators on hand.
But the mood was different Wednesday. GMP had called the Nelsons to say there would be blasting from 2 to 4 p.m.
On top of the mountain, the demonstrators got their first clear view of two big drill rigs, poking holes in the rock about 800 feet from the campsite.
With binoculars, they could watch workmen carry boxes of high explosive from a cubical white body mounted on tracks to the drill holes. Then they could watch as a large backhoe dragged massive mats of steel and rubber over the blast site, while other massive machines made a ponderous retreat.
All that clatter aside, the place was remarkably quiet. The demonstrators exchanged a bit of small talk, did a bit of planning, but didn’t talk much about their concern for Lowell Mountain, or their despair at what GMP was doing to it. Their presence in that high, steeply sloped forest said those things for them.
Nor did the demonstrators have anything to say to two GMP workers who passed within a few feet of them, putting yet more yellow warning signs on trees along the disputed line that separates the Nelson property from the project.
They numbered each sign with a marker, photographed it, and moved on out of sight to the north.
The four demonstrators who were prepared to be arrested gathered up their gear and tossed it into one of the tents. If necessary, it would be carried down the trail by the people who were there to support them.
Two more GMP workers approached the protesters as they moved as close as they could get to the blast site, just after 3 o’clock.
The one who wore a blue hard hat, Dave Coriell, is community outreach manager for Kingdom Community Wind, which is the name GMP gave to its project.
The one in the unpainted tin hat, John Stamatov, manages the construction project for GMP.
Mr. Coriell, who used to do public relations work for Governor Jim Douglas, looked a little out of his element. That wasn’t true of Mr. Stamatov, though he looked like he’d be more comfortable running a bulldozer than a video camera.
Mr. Coriell stopped within easy earshot of the protesters. Behind him, Mr. Stamatov started recording the proceedings on his camera.
“I’m going to have to ask people to please move back,” Mr. Coriell said. Nobody moved.
If the demonstrators didn’t move 1,000 feet down the mountain, Mr. Coriell continued, they would be in violation of the temporary restraining order.
Copies of the order were nailed to a scattering of nearby trees.
“I ask you to please move back,” Mr. Coriell said. “I’m not going to force you physically to move.” Nobody moved.
“If you’re not going to move, I’d ask you for your name or some identification,” Mr. Coriell said.
Nobody said anything.
“That’s a cute dog,” Mr. Coriell said of Koyo. A handsome yellow lab who’d carried a backpack up the mountain for his owners, Koyo was the only demonstrator who used his real name. If he was flattered, Koyo didn’t say so.
I identified myself to the GMP twosome, and said I planned to stick around and see what happened next.
“By standing there you’re risking serious injury or death,” Mr. Stamatov said.
Knowing that, I asked, was GMP still going to touch off the explosives?
“We’re hoping people move,” said Mr. Coriell.
They withdrew across the wide orange ribbon that divides the construction site from the forest.
But they came back a few minutes later. Stepping up to a tree, Mr. Coriell read the entire text of the restraining order aloud to the silent demonstrators, while Mr. Stamatov recorded the event.
The two withdrew again, but remained in the clearcut that GMP’s logging crew had created where the crane path will run along the top of the ridgeline. They were not significantly further from the blast site than the demonstrators.
Everybody waited. It became quiet, an ominous silence that settled as the last machines withdrew.
The demonstrators were there, of course, in the belief that their presence would stop the blasting.
They had been warned that they were standing in harm’s way, and they had every reason to believe it.
What Mr. Coriell hadn’t told them was that the contractor, Maine Drilling and Blasting, had carefully laid a much smaller charge than it hopes to use in the near future, and covered it with particular care with particularly large blasting mats.
At 3:26 the silence was broken by three loud horn blasts. According to the yellow signs on so many nearby trees, that signified five minutes until the explosion.
Two horns sounded four minutes later, the one-minute warning. Still nobody moved, nobody talked. One demonstrator, a young woman sitting legs crossed in a lotus position, closed her eyes.
The words “fire in the hole” carried through the silent forest from somebody’s radio and the explosives went off, sending a cloud of gray dust into the sky. There were no casualties.
The demonstrators had stood their ground, a they had pledged to do. And GMP had blown up another piece of Lowell Mountain, as it was so determined to do.
If there’s a moral victory to be claimed, it clearly goes to the protestors. But that may only serve as consolation, a year or so from now, as they contemplate the wind towers on Lowell Mountain.

10/11/11 Show me the study: Wisconsin senator's bill requires health effects of wind turbines to be studied.
SENATOR CALLS FOR MORATORIM AND HEALTH STUDY ON WIND TURBINES
By Kristin Byrne
SOURCE: www.wbay.com
October 10, 2011
A state senator is on a mission to make sure wind turbines don’t hurt peoples’ health.
“We owe it to ourselves as legislators, and as a state and country, to not harm people when new things come down the pike,” Senator Frank Lasee (R-De Pere) said.
Senator Lasee is introducing a bill calling for a health study on wind turbines.
The bill would impose a moratorium on future wind turbine construction until the Public Service Commission receives a study from the Department of Health Services on turbines’ health impact on people and animals in three ways:
The impacts of low-frequency sound
How turbines affect people and animals in different proximity to the systems
Any differences associated with various wind speeds and directions
Senator Lasee was in the Town of Glenmore on Monday promoting the piece of legislation.
“There’s information coming in from around the world where they’ve had windmills longer that there are health effects,” Lasee said.
Lasee says he’s done his research on wind turbines and he’s heard from his constituents.
“I’ve seen enough now in my own district and elsewhere of people actually moving out of their homes it’s gotten so bad,” he said.
Before more turbines are raised, he thinks a study should be done on how they can impact your health.
“I don’t know that it’s going to help us, because we already have the windmills here, but hopefully it will help other families from having to go through,” Darrel Cappelle, who lives in Glenmore, said.
Cappelle and his wife Sarah say ever since eight turbines started running right by their home about a year ago, the constant hum has given them headaches, a good night’s sleep sometimes isn’t an option, and they think that’s why they’re getting sick more often.
“If you get a cold, it’ll last three weeks instead of three days,” Cappelle said.
Cappelle doesn’t know for sure if his family’s health problems are directly related to the turbines, but a study might answer that question.
“We need to have a real scientific study or use data from around the world. There are plenty of other studies out there to prove that this is causing harm to people,” Senator Lasee said.
[video available]

10/10/11 Wisconsin gets serious about getting wind siting right
Fond du Lac County home in Invenergy wind projectPROPOSED BILL WOULD PLACE A MORATORIUM ON WIND FARM DEVELOPMENT
SOURCE: The Fond du Lac Reporter
Expert witnesses have acknowledged that Industrial Wind Turbines (IWTs) can cause health problems including sleep disturbance, headache, ear pressure, dizziness, vertigo, nausea, visual blurring, irritability, panic episodes, depression and a variety of other ailments, according to a press release from Lasee's office.
Madison, WI –Senator Frank Lasee (R-De Pere) has introduced “Health Study for Wind Turbines” legislation in the State Senate. The proposed bill creates a moratorium on future wind turbines until the Public Service Commission (PSC) receives a report from the Department of Health Services (DHS) regarding the health impacts on people and animals.
[Click here to download the wind turbine health study bill]
Expert witnesses have acknowledged that Industrial Wind Turbines (IWTs) can cause health problems including sleep disturbance, headache, ear pressure, dizziness, vertigo, nausea, visual blurring, irritability, panic episodes, depression and a variety of other ailments, according to a press release from Lasee's office.
“There are three families that I am aware of who have moved out of their homes to get relief because they are getting so ill. One family’s teenage daughter was hospitalized, and when they moved, she fully recovered. We can’t let this kind of a thing go on,” said Senator Lasee. “It’s plain un-American to have wind turbines twice as tall as the State Capitol right next to someone’s house that they are forced to look at, which makes them dizzy, nauseous and sick.”
“This has been a nightmare, we’ve had to leave our beautiful home in order to get relief from the health issues we believe were caused by the nearby wind turbines,” said Sue Ashley an impacted property owner. Darrel Cappelle, another impacted property owner added, “my wife has been suffering from migraine headaches since the wind turbines were constructed. This has been a horrible impact on my family.”
“This bill will require the PSC to protect people and their property from being harmed by the effects of Industrial Wind Turbines,” said Lasee.
SECOND STORY
WIND SITING RULES STILL STUCK IN LIMBO
By CLAY BARBOUR,
SOURCE madison.com
October 9, 2011
Hundreds of jobs and millions of dollars in potential economic development are stuck in limbo as officials continue to argue over new wind siting rules.
The new rules, more than a year in the making, were suspended earlier this year just before they were to go into effect. A legislative committee sent them back to the Public Service Commission, which was tasked with finding a compromise between both sides.
Now, some seven months later, PSC officials say they are no closer to a deal than when they started. Meanwhile, wind farm developers such as Midwest Wind Energy and Redwind Consulting are sitting on their hands, and their money.
“Right now, we just don’t have a path forward in Wisconsin,” said Tim Polz, vice president of Midwest Wind Energy, a company that suspended work earlier this year on a large wind farm in Calumet County. “The uncertainty is just too much now.”
Polz said Chicago-based Midwest already spent three years and about $1 million on the Calumet County project. In full, the company expected to spend upward of $200 million on the project, employ 150 to 200 construction workers for up to 18 months and five to eight people full time after that.
The project is one of five major utility wind farms suspended or canceled as a result of the ongoing stalemate, costing the state a relatively quick infusion of about $1.6 billion in economic development and almost 1,000 temporary, full-time jobs.
“In this economy, where jobs are at a premium and people are struggling, this kind of inaction is inexcusable,” said Minority Leader Peter Barca, D-Kenosha.
Set back by setbacks
The sticking point, according to PSC spokeswoman Kristin Ruesch, is what it has always been: setbacks, noise levels and the effects turbines have on neighboring property owners.
The PSC spent more than a year working out the original rules, which bore the fingerprints of Democrats and Republicans, the wind industry and its critics.
Those rules were scheduled to go into effect in March. But after taking office in January, Republican Gov. Scott Walker introduced a bill to dramatically increase setbacks.
The original rules required wind turbines have a setback from the nearest property line of 1.1 times the height of the turbine, or roughly 450 feet. The rules also required turbines be no closer than 1,250 feet from the nearest residence. Walker’s provision pushed the setback from the property line — not just a house — to 1,800 feet, about six football fields.
That proposal appealed to wind industry critics and the real estate industry, a heavy contributor to Walker’s campaign. Realtors donated more than $400,000 to Walker by October 2010, according to the Wisconsin Democracy Campaign, an election watchdog group.
But officials in the wind industry said the governor’s proposal would ruin their business in Wisconsin. Barca said the original rules were the result of a bipartisan agreement and he thinks the governor just doesn’t like the industry.
“It has been a deliberate decision by Gov. Walker,” he said. “They are going to kill wind energy in this state.”
Time pressure
In the end, the legislative committee that reviews agency rules chose not to act on the governor’s bill and instead voted to send the original rules back to the PSC to see if an agreement could be ironed out.
If no changes are made by March, the original rules go into effect. However, two bills sit in Legislative committees designed to kill the original rules and force the state to start from scratch.
“But I don’t think they want to do that,” said Michael Vickerman, executive director of RENEW Wisconsin, a Madison nonprofit that promotes clean energy. “They would be immediately vulnerable on the ‘jobs’ issue.”
Walker said he is aware of the stress caused by the delay but feels it is important any rules be fair to both sides, respecting property rights and the future of the wind industry.
Meanwhile, state Sen. Frank Lasee, R-De Pere, plans to introduce a bill Monday to call for a moratorium on wind turbines until the PSC receives a report from the Department of Health Services on possible health effects of wind farms.
“It is more important to fully vet, understand and communicate to the public the potential changes than the specific timing of when they are adopted and enacted.” Walker said. “It is important to note that whatever proposed changes are made, there are effects on a number of different areas of the economy.”

9/10/11 Why your town needs a moratorium on Big Wind AND More about the noise the wind industry says is all in you head
A Letter from a Wisconsin Farmer
PLACE MORATORIUM ON LARGE WIND TURBINES
SOURCE: htrnews.com
September 10, 2011
By Jerome Hlinak, Tisch Mills
Some of you may be aware that the Public Service Commission of Wisconsin appointed a committee of experts to create statewide wind siting rules, but may not know the majority of that committee benefits financially from the wind industry.[Click here to see who is on the Wind Siting Council]
One committee member living in the Fond du Lac County wind turbine nightmare had his health concerns completely ignored by those looking to fill their pockets with government green energy subsidies.
Statewide, legislators have been receiving complaints from wind farm victims who live much farther away than the committee's recommended 1,250-foot setback.
Committee member Bill Rakocy of Emerging Energies was granted a permit by Manitowoc County in 2006 to build eight turbines near Mishicot. A court denied those permits, agreeing with residents that the county should have used its new wind ordinance, not the 2004 ordinance, which was written with assistance from wind developers.
Emerging Energies, aka Shirley Wind LLC, moved on to build the Shirley Wind Farm in Brown County.
Families residing up to a mile away from the Shirley turbines have been driven out of their homes due to health issues. Emerging Energies received $13.2 million in grants for this project, benefits from tax credits and double depreciation at your tax dollar expense, and these families get no compensation without legal action.
Please ask your county supervisor to support a moratorium on large wind turbines. The current county ordinance requires only a 1,000-foot setback from a lot line.
Element Power is proposing turbines in northern Manitowoc County that would fall between the county's outdated rules and new state standards that might be as much as 2,640 feet from a lot line.
Several town boards have passed resolutions to support a moratorium. Ask your supervisor to place more value on your health and safety ratherthan financial gain or jobs with Tower Tech.
Jerome Hlinak
Tisch Mills
Next Story
CURE FOR WIND FARM NOISE POLICY GRIDLOCK: BACK OFF BUT ALLOW EASEMENTS
Source: Renewable Energy News
September 10, 2011
By Jim Cummings, Acoustic Ecology Institute
Most wind advocates, including both industry players and regional renewable energy organizations, continue to be in a state of disbelief that the noise of turbines could possibly be a significant issue for nearby neighbors.
While it’s increasingly acknowledged that turbines will be audible much of the time, complaints about noise are too often painted as being unworthy of serious consideration, either because turbines are not all that loud, or because of an insistence that noise complaints are bogus surrogates for a broader opposition to wind energy that is “really” based on visual impacts or economic arguments (driven in some cases by climate change denial).
Perhaps most crucially, wind advocates rarely acknowledge that turbine noise is often 10 dB louder than background sound levels (sometimes even 20 dB or more); acousticians have long known that any increase over 5 dB begins to trigger complaints, with 10dB the threshold for widespread problems.
Meanwhile, many community groups are over-reaching in their approach to reducing noise impacts, by focusing too much of their argument on possible health impacts of wind turbine noise exposure. While there are many reliable anecdotal examples of people having physical reactions to nearby turbines, even the accumulating number of reports of health reactions to new turbines represents a small minority of people who live within a mile or even half-mile of turbines.
The health claims are hard – and perhaps impossible – to prove, though some insist that any health impact is unacceptable. Much more telling are community response rates that affirm – in some types of rural communities – that 25-50 percent of people hearing turbines near the regulatory sound limits feel that their quality of life is severely impacted.
AEI’s new report, Wind Farm Noise 2011, aims to frame the current state of research and policy in a way that can help those trying to find a constructive middle ground that protects rural residents from an intrusive new 24/7 noise source while also encouraging wind development as part of our renewable energy future.
A series of court and environmental tribunal rulings in recent months shed an especially illuminating light on the ambiguous state of our current understanding of wind farm noise impacts. In each case, the ruling rejected some elements of the challenge while affirming the validity of other claimed impacts or stressing the need for continued investigation.
In Australia, a planned wind farm was derailed by an environmental tribunal responding to an appeal from a local farmer who had focused on the possible noise impacts on his family and his livestock. The tribunal rejected evidence related to health effects from noise, but held that the planned layout would impact the “visual amenity” of the area to an unacceptable degree (in Australia and New Zealand, “rural amenity” is a commonly-accepted planning and regulatory consideration). In this case, the tribunal ruled that siting turbines 1km (0.6 miles) from homes, with some homes surrounded by several turbines within 2km (a mile and a quarter), was too close.
In Minnesota, the Public Utilities Commission rejected a half-mile county setback, but required the developer to offer financial compensation to 200 residents within a half-mile, though outside the regulatory limit of 1630 feet.
In Ontario, a major challenge to the Province’s new Green Energy Act was denied, and the 223-page ruling offers a great primer on current research from all sides. The challenge was based on the health impacts argument, and failed on that count, but the tribunal stressed that “risks and uncertainties” remain. While the evidence to date was determined to be “exploratory” rather than “confirmatory,” continued study was urged. The report noted: “The Tribunal accepts that indirect effects are a complex matter and that there is no reason to ignore serious effects that have a psychological component.”
Finally, and perhaps most strikingly, in the UK an appeal of a planned wind farm (based on the claim that the regulations were insufficient) was denied, but the High Court affirmed the validity of an amplitude modulation (AM) condition in the regulations, which is very stringent: whenever sound levels are over 28 dB, AM cannot exceed 3 dB. After years of denying that AM is an issue in UK wind farms, the industry there faces a starkly restrictive standard that would, in effect, preclude wind farm operations when any blade swish is audible, even in distant, barely audible turbines. Renewable UK (formerly BWEA) is scrambling to fund research that can be used to better quantify AM so that new rules providing a reliable dB penalty for AM can be devised.
My experiences around wind farms in Texas, Wisconsin, Nebraska, Kansas, and Wyoming has been very consistent: I have always been able to clearly hear any turbines that were within a half mile (faintly, but clearly there); at a quarter to third of a mile, the sound stood out, and as I approached three-quarters of a mile, the sound faded into the background sounds of distant roads or ground breeze. These have been brief experiences, always in daytime with moderate wind.
Adding to these personal observations, the widespread reports of neighbors affected by unexpectedly intrusive levels of noise from turbines up to a half mile or so away as well as ranch-country experience that suggests noise levels of 45-50 dB are often easily accepted, lead to my current perspective that the most constructive and widely beneficial path forward would be a shift toward larger setback requirements (in effect, lowering the maximum noise levels at homes nearly to quiet night time ambient noise levels), combined with easily crafted easement provisions that allow turbines to be built closer to landowners who agree to allow it.
This approach, currently used in Oregon, would protect communities and individuals who have invested their life savings in a quiet rural lifestyle, while acknowledging that there are many people in rural areas who are ready and willing to support wind energy development, even near their homes.
Yes, some locations – in fact many locations with relatively small lot sizes – may be hard or impossible to build in, but these are exactly the locations where the social tradeoffs, and the resulting balancing of costs and benefits, are least clearly favorable to wind development anyway. If the industry can accept that it doesn’t have the right to build anywhere the noise can be kept to 50 dB, and that its future development will be taking place within the fabric of a diverse society, then there is a clear business opportunity emerging for those companies that take the lead by crafting truly responsive community relations programs.
These companies will commit to working with the standards set by local tolerance for new noise sources, rather than pushing local or state authorities to adopt siting standards used elsewhere. These leading edge wind companies may also put their money where their mouth is on property values by establishing programs that compensate landowners for moderate changes in property value (which are likely to be less common than feared), and helping create programs that buy and sell homes, so residents who wish move can do so quickly at fair market value.
These companies will develop reputations as developers that are ready to be good local citizens, and will find that the increases in some costs and a willingness to forsake some locations altogether leads to dramatic benefits in terms of long-term stability and acceptance in the communities where they work – and especially in communities where they propose new projects.
Noise concerns are not obstacles to wind development, if the industry and local and state regulators can move beyond simplistic denial of the problem. Indeed, the continued growth of the wind industry in the U.S. and Canada may depend upon a fundamental shift of attitude, centered on respecting communities that choose lower noise limits, and providing assurances that negative impacts will be addressed if they occur.

6/3/11 More noise about Noise AND Wind Industry Wedgie AND Wind turbines and property values
NOISE RESEARCH TO COMBAT WIND TURBINE SYNDROME
SOURCE: adelaide.edu.au
June 1, 2011
“Wind turbine noise is very directional. Someone living at the base might not have a problem but two kilometres away, it might be keeping them awake at night,”
“Wind turbine noise is controversial but there’s no doubt that there is noise and that it seems to be more annoying than other types of noise at the same level.
University of Adelaide acoustics researchers are investigating the causes of wind turbine noise with the aim of making them quieter and solving ‘wind turbine syndrome’.
They are also developing a computer model to predict the noise output from wind farms so they can accurately and quickly assess the effectiveness of potential noise-reducing designs and control methods.
Research leader Dr Con Doolan, of the University’s School of Mechanical Engineering, said the noise generated from wind turbines is ‘trailing edge or airfoil noise’, the same sort of noise generated at the edge of aircraft wings.
“We know generally what causes that noise – as the turbulent air flows over the sharp edge of the blade it radiates sound much more efficiently, so the noise can be heard at some distance,” said Dr Doolan.
“What we don’t yet understand, however, is exactly how that turbulence and blade edge, or boundary layer, interact and how that makes the noise louder.
“If we can understand this fundamental science, we can then look at ways of controlling the noise, through changing the shape of the rotor blades or using active control devices at the blade edges to disrupt the pattern of turbulence and so reduce the noise.”
Dr Doolan said further complicating factors came from the effects of multiple wind turbines together and the way the noise increases and decreases as the blades rotate – the blade ‘swish’. The model they are developing will look at the noise from the whole wind turbine and how multiple numbers of wind turbines together, as in a wind farm, generate noise.
“Wind turbine noise is very directional. Someone living at the base might not have a problem but two kilometres away, it might be keeping them awake at night,” he said.
“Likewise this broadband ‘hissing’ noise modulates up and down as the blades rotate and we think that’s what makes it so annoying,” he said.
“Wind turbine noise is controversial but there’s no doubt that there is noise and that it seems to be more annoying than other types of noise at the same level. Finding ways of controlling and reducing this noise will help us make the most of this very effective means of generating large amounts of electricity with next to zero carbon emissions.”
Something from the Wind Developer's point of view
IS WIND ENERGY THE NEW WEDGE ISSUE?
SOURCE: North American Windpower
By Jeff Siegel,
Almost as soon as the situation at Japan’s Fukushima Daiichi nuclear plant became critical in March, Fox News reported that wind power had killed more Americans than nuclear energy. Meanwhile, the Texas Public Policy Foundation, a conservative think tank, issued a study that said the state’s taxpayers would be $28 billion better off if Texas abandoned its pro-wind policies.
Wind, after being the darling of the media, business and state governments for much of its history, has suddenly found itself on the receiving end of negative publicity, questions about its value as an energy source and even calls for an end to wind development. The feel-good “green” story, according to the New York Times, “is now nearing extinction.”
Texas, Wisconsin and Minnesota, all considered wind-friendly states, have recently pursued policies that can be seen as anti-wind.
Some of this shift is due to the industry’s natural maturation process, according to David Lowman, an attorney who is co-chair of Hunton & Williams’ global renewable energy practice group in Washington, D.C.
Some of the backlash against wind also stems from the recession, which has not only hampered wind development but has made even previously wind-friendly regulators and legislators question its cost at a time when state and federal budgets are being slashed.
The pushback, says attorney Jim Tynion, who chairs Foley & Lardner’s energy industry team, is genuine and something that the industry needs to address.
The acrimony is being powered by a combination of small-government conservatives who see wind and other renewables as a waste of money and by others who consider wind a technology that will never be as effective as oil, coal or natural gas.
During a Texas ground-breaking ceremony for an oil and gas processing company, Sen. John Cornyn, R-Texas, told KSAT in San Antonio, “I understand that some people want to see green jobs; I think that’s great. We need all of the above when it comes to energy: wind, solar, biofuels and the like. But the fact of the matter is 85 percent of our fuel consumption comes from fossil fuels.”
Cornyn’s comments underscore the political realities that wind energy faces.
“The political landscape has changed,” Tynion says. “It’s easy to take potshots at something that isn’t part of the status quo, like wind. It has become an easy target.”
Certainly, not all has gone badly for wind. The American Wind Energy Association (AWEA) estimates that the U.S. wind power industry grew by 15% in 2010 and provided more than one-quarter of all new electric-generating capacity. Also, California, despite its fiscal problems, will require one-third of the state’s electricity to come from renewable sources by 2020.
But those are the bright spots. Some dark ones include the following:
• The Wisconsin State Legislature is considering a bill that would restrict the development of approximately $500 million worth of projects over the next two years. According to the Milwaukee Journal Sentinel, Republican Gov. Scott Walker says wind costs too much and impedes on rural property rights. The legislature voted in March to suspend wind farm siting rules. The five-to-two vote tracked along party lines, with all five votes to suspend coming from Republican members;
• Texas comptroller, Republican Susan Combs, has decried wind as an expensive boondoggle that does not produce jobs. The state’s GOP-controlled legislature may limit the ability of local school districts to give tax abatements, which wind advocates in the state say will limit development in rural areas; and
• The 2012 extension of the production tax credit could be in jeopardy, given the budgetary concerns on Capitol Hill. Jon Chase, vice president of government relations for Vestas-American Wind Technology, told an AWEA finance and budget workshop in April, “All the credits out there are going to be looked at very closely. Everything is going to be on the table.”
“There are politicians who can make political hay by playing to that constituency,” says Tom Konrad, who manages several green energy stock portfolios and is editor of AltEnergyStocks.com.
As part of this political footwork, Konrad says rhetoric debunking climate change has increased markedly over the past several years, more or less in relation to how many Americans believe that climate change actually exists. If fewer Americans believe in climate change, fewer Americans will support wind and other renewables, he says.
This goes a long way toward explaining the difference in the current political and media attitude toward wind compared to just a couple of years ago. Also important, say wind industry analysts, has been the length and depth of the recession, both in how it has slowed development and made consumers more wary of higher energy prIces.
Whether or not some of these concerns may be warranted, says Tynion, the wind business should not discount the change in the political climate.
“Politicians and state regulators are withdrawing their support for wind across the board,” he says, citing the Wisconsin controversy as a prime example.
Walker’s proposed legislation would overturn a siting compromise three years in the making, says Tynion, adding that the compromise seemed to satisfy everyone involved: developers, rural landowners and regulators.
For its part, AWEA does not support the claim that wind energy is a wedge issue for either political party. “The fact is nine out of 10 voters Republicans, Democrats and Independents – want more wind power, as we found in a recent poll,” says Elizabeth Salerno, AWEXs director of data and analysis. “Specific to Republicans, AWEA found that 84 percent of Republicans believe increasing the amount of energy the nation gets from wind is a good idea.”
Has the backlash irreparably damaged wind? Has the momentum and goodwill built up over the past 20 years been lost? The answer is complicated and depends not only on what happens during the 2012 presidential and congressional elections, but on what the wind industry does over the next several years to regain lost momentum.
“There is still a great deal of support for wind and other renewables, both among Democrats and Republicans,” says Lowman. “And there are plenty of initiatives going on, especially on the East Coast. For example, Virginia Governor Robert F. McDonnell, a Republican, wants to build offshore wind.”
Education also remains key, say several analysts. Focusing on the longterm benefits of wind is important. If the green argument fails to work, there is always the economic one.
Lowman says there is reason to expect that renewable prices will continue to become more competitive with fossil fuels over the next decade.
Anne Mudge, an attorney at San Francisco-based Cox Castle & Nicholson, recommends that wind energy advocates should not let opponents dominate the discussion by focusing on the short term.
“Continue to demonstrate what is the truth – that there are economic benefits to wind, that it brings jobs, that it increases the property tax base and that it doesn’t take much in the way of government services,” she says.
In other words, do what wind has always done – but do it in an even more urgent way. Because, says Konrad, if the argument focuses on the short term, and if wind’s opponents can direct the discussion, “wind will remain a whipping horse.”
Click on the image above to hear a realtor talk about property values and wind turbines.
