Entries in wind turbines (3)

2/16/12 Wind Industry: Let us Keep our Cash Cow AND Let us Kill Golden Eagles AND We Don't Know Why that Turbine Caught Fire ANDTaking heat on U.S. Senate Floor

PTC EXTENSION ABSENT FROM PAYROLL TAX DEAL

Source: Sustainable Business Oregon

Lawmakers in Washington appear to have hammered out a deal on a major payroll tax cut. But contrary to the hopes of renewable energy advocates, an extension of the expiring wind energy Production Tax Credit wasn't part of the package.

The payroll tax bill was viewed as a potential landing place for the Production Tax Credit, or PTC, which is seen as vital to the U.S. wind energy industry.

But late in the day Wednesday, it became clear that the PTC didn't make it into the final stages of negotiation.

Wind energy advocates, led by the American Wind Energy Association, have said that passing a PTC extension in the first quarter of the year is vital to ensuring that the industry — from wind farm project development to manufacturing by companies such as Vestas — is able to maintain its current level of activity and look toward growth.

The PTC, which provides 2.2 cent per kilowatt hour credit for power produced by qualifying renewable energy sources, is set to expire at the end of the year.

Last November, U.S. Representative Earl Blumenauer (D-Ore.) joined with Rep. Dave Reichert (R-Wash.) to propose legislation to renew the credit and Oregon's delegation has been supportive of the PTC cause.

While it's unclear what the next window of opportunity will be to get the extension approved by lawmakers, AWEA officials said Wednesday that new efforts are underway.

"A bipartisan group of members of Congress are continuing to provide leadership in extending the wind PTC. They're looking at every opportunity to get this done in the first quarter, because they realize the urgency of keeping the tens of thousands of U.S. manufacturing jobs that are on the line, in particular," AWEA officials said in a statement, citing several examples of efforts in the works.

In addition, Nike, Hewlett-Packard, Staples and Starbucks among others have added their support to a PTC extension.

Next Feature

U.S. PROBES GOLDEN EAGLES' DEATH AT DWP WIND FARM

 

Two more golden eagles have been found dead at the Los Angeles Department of Water and Power wind farm in the Tehachapi Mountains, for a total of eight carcasses of the federally protected raptors found at the site.

The U.S. Fish and Wildlife Service is trying to determine the cause of death of the two golden eagles found Sunday at the Pine Tree wind farm, about 100 miles north of Los Angeles and 15 miles northeast of Mojave, said Lois Grunwald, a spokeswoman for the agency.

The agency has determined that the six golden eagles found dead earlier at the 2-year-old wind farm in Kern County were struck by blades from some of the 90 turbines spread across 8,000 acres at the site.

Those deaths give Pine Tree one of the highest avian mortality rates in California's wind farm industry. The death rate per turbine at the $425-million facility is three times higher than at California's Altamont Pass Wind Resource Area, where about 67 golden eagles die each year. However, the Altamont Pass facility has 5,000 wind turbines — 55 times as many as Pine Tree.

The flight behavior and size of golden eagles make it difficult for them to maneuver through forests of wind turbine blades spinning as fast as 200 mph — especially when the birds are distracted by the sight of squirrels and other prey. Golden Eagles are about 40 inches tall and weigh about 14 pounds,

The DWP is developing a avian and bat protection plan that "will include measures for mitigating risks to golden eagles," utility spokesman Brooks Baker said.

Critics say the problem is fundamental. "The increasing golden eagle mortality at Pine Tree clearly points to wind turbines built in the wrong location," said Ileene Anderson, a biologist with the Center for Biological Diversity. The utility needs to redesign its 250-megawatt Pine Tree network and Kern County needs to put a moratorium on construction of nearby wind farms to prevent deaths, Anderson said.

Garry George, renewable energy project director for Audubon California, said the best solution is to devote years of research into golden eagles' behavior in an area before deciding where to erect turbines. "If you don't ... you wind up with a Pine Tree," George said.

Killing golden eagles is illegal under federal law, but so far, federal authorities have not prosecuted any wind farm operators for violations.

A prosecution in the Pine Tree case could force the booming alternative energy industry to revise its approach at a time when Kern County is drafting boundary maps for wind resource areas for dozens of proposed wind projects designed to generate electricity for Los Angeles County.

A year ago, the Kern County Board of Supervisors adopted a renewable energy goal of having 10,000 megawatts of renewable energy production by 2015. Los Angeles has a renewable energy goal of 35% by 2020.

A coalition of environmental groups including the Sierra Club, the Center for Biological Diversity and the Defenders of Wildlife recently sued Kern County to block construction of the proposed North Sky River and Jawbone wind energy projects, which would operate on 13,535 acres of mountainous terrain adjacent to Pine Tree.

According to the lawsuit, the projects would have an unacceptable effect on protected bat and avian species, including the golden eagle and the rare and protected California condor, and on an important avian migratory corridor.

Next Feature:

CLOSE INSPECTION YIELDS LITTLE ABOUT WIND TURBINE FIRE

Source Press-Republican, pressrepublican.com 

By MIRANDA ORSO,

February 16, 2012

ALTONA — Noble Environmental Power brought in a basket crane recently to get a closer look at the damage caused to a wind turbine in Altona Wind Park on Jan. 29.

“What they were able to see when they were up there was limited,” said John Bahouth, Noble’s vice president of human resources and communications.

Noble officials were holding a series of meetings this week to discuss possible reasons for the flames.

There was “nothing conclusive yet,” Bahouth said.

Determining the cause of the fire requires gathering large amounts of data, he said, and it can be lengthy process.

“It is important because all disciplines have to weigh in,” he added.

Mechanical, chemical and electrical testing must be completed and analyzed to rule out possible roles in the blaze.

Behouth said they are also considering meteorological factors, as some residents in the area reported lightning flashes before the turbine caught fire.

No final plans had been made for the damaged turbine.

“We are looking at what the next steps are and working with the insurance company. It’s in their hands now,” Bahouth said. “As of now, everything is still speculation.”

This was the second major incident involving wind turbines in the Altona Park. In March 2009, a power outage triggered a fire in a turbine, which collapsed. A second turbine was damaged, as well.

The Public Service Commission found Noble was not at fault in that incident.

ALEXANDER OPPOSES PRODUCTION TAX CREDIT, WIND INDUSTRY SUBSIDY

www.chattanoogan.com 15 February 2012 ~~

In a speech Wednesday on the floor of the United States Senate, Senator Lamar Alexander called on Congress to reject any efforts to “put in the payroll tax agreement a four-year extension of the so-called production tax credit,” calling it “a big loophole for the rich and for the investment bankers.”

Senator Alexander said: “Let’s not even think about putting this tax break for the rich in the middle of an extension of a tax deduction for working Americans this week. Let’s focus on reducing the debt, increasing expenditure for research, and getting rid of the subsidies.
Twenty years is long enough for a wind production tax credit for what our distinguished Nobel prize-winning Secretary of Energy says is a ‘mature technology.’”

The full transcript follows: “Madam President, there are reports in some of the newspapers this morning that there is an effort to try to slip into the negotiation about extending the payroll tax break for the next year a big loophole for the rich and for the investment bankers and for most of the people President Obama keeps talking about as people whose taxes he would like to raise.

What I mean by this is I have heard there may be an effort to put into the payroll tax agreement a four-year extension of the so-called production tax credit, which is a big tax break for wind developers. I cannot think of anything that would derail more rapidly the consensus that is developing about extending the payroll tax deduction than to do such a thing.

We are supposed to be talking about reducing taxes for working people. This would maintain a big loophole for investment bankers, for the very wealthy, and for big corporations. “We hear a lot of talk about federal subsidies for Big Oil. I would like to take a moment to talk about federal subsidies for Big Wind — $27 billion over 10 years.

That is the amount of Federal taxpayer dollars between 2007 and 2016, according to the Joint Tax Committee, that taxpayers will have given to wind developers across our country. This subsidy comes in the form of a production tax credit, renewable energy bonds, investment tax credits, federal grants, and accelerated appreciation. These are huge subsidies. The production tax credit itself has been there for 20 years. It was a temporary tax break put in the law in 1992.

“And what do we get in return for these billions of dollars of subsidies? We get a puny amount of unreliable electricity that arrives disproportionately at night when we don’t need it. “Residents in community after community across America are finding out that these are not your grandma’s windmills. These gigantic turbines, which look so pleasant on the television ads — paid for by the people who are getting all the tax breaks — look like an elephant when they are in your backyard.

In fact, they are much bigger than an elephant. They are three times as tall as the sky boxes at Neyland Stadium, the University of Tennessee football stadium in Knoxville. They are taller than the Statue of Liberty. The blades are as wide as a football field is long, and you can see the blinking lights that are on top of these windmills for 20 miles.

In town after town, Americans are complaining about the noise and disturbance that come from these giant wind turbines in their backyards. There is a new movie that was reviewed in the New York Times in the last few days called “Windfall” about residents in upstate New York who are upset and have left their homes because of the arrival of these big wind turbines.

The great American West, which conservationists for a century have sought to protect, has become littered with these giant towers. Boone Pickens, an advocate of wind power, says he doesn’t want them on his own ranch because they are ugly. Senators Kerry, Kennedy, Warner, and Scott Brown have all complained about the new Manhattan Island-sized wind development which will forever change the landscape off the coast of Nantucket Island.

On top of all that, these giant turbines have become a Cuisinart in the sky for birds. Federal law protects the American Eagle and migratory birds. In 2009, Exxon had to pay $600,000 in fines when oil developments harmed these protected birds. But the federal government so far has refused to apply the same federal law to Big Wind that applies to Big Oil, even though chopping up an eagle in a wind turbine couldn’t be any better than its landing and dying on an oil slick. And wind turbines kill over 400,000 birds every year.

We have had some experience with the reliability of this kind of wind power in the Tennessee Valley Authority region. A few years ago TVA built 30 big wind turbines on top of Buffalo Mountain. In the eastern United States, onshore wind power only works when the wind turbines are placed on the ridge lines of Americas most scenic mountains. So you will see them along the areas near the Appalachian Trail through the mountains of scenic views we prize in our State. But there they are, 30 big wind turbines to see whether they would work.

Here is what happened: The wind blows 19 percent of the time. According to TVA’s own estimates, it is reliable 12 percent of the time. So TVA signed a contract to spend $60 million to produce 6 megawatts of wind — actual production of wind — over that 10-year period of time. It was a commercial failure.

There are obviously better alternatives to this. First, there is nuclear power. We wouldn’t think of going to war in sailboats if nuclear-powered submarines and aircraft carriers were available. The energy equivalent of going to war in sailboats is trying to produce enough clean energy for the United States of America with windmills.

The United States uses 25 percent of all the electricity in the world. It needs to be clean, reliable electricity that we can afford. Twenty percent of the electricity that we use today is nuclear power. Nearly 70 percent of the clean electricity, the pollution-free electricity that we use today is nuclear power. It comes from 104 reactors located at 65 sites. Each reactor consumes about one square-mile of land. “To produce the same amount of electricity by windmills would mean we would have to have 186,000 of these wind turbines; it would cover an area the size of West Virginia; we would need 19,000 miles of transmission lines through backyards and scenic areas; so 100 reactors on 100 square miles or 186,000 wind turbines on 25,000 square miles.

Think about it another way. Four reactors on four square miles is equal to a row of 50-story tall wind turbines along the entire 2,178-mile Appalachian Trail. Of course, if we had the turbines, we would still need the nuclear plants or the gas plants or the coal plants because we would like our computers to work and our lights to be on when the wind doesn’t blow, and we can’t store the electricity.

Then, of course, there is natural gas, which has no sulfur pollution, very little nitrogen pollution, half as much carbon as coal. Gas is very cheap today. A Chicago-based utility analyst said: Wind on its own without incentives is far from economic unless gas is north of $6.50 per unit. The Wall Street Journal says that wind power is facing a make-or-break moment in Congress, while we debate to extend these subsidies. So that is why the wind power companies are on pins and needles waiting to see what Congress decides to do about its subsidy.

Taxpayers should be the ones on pins and needles. This $27 billion over 10 years is a waste of money. It could be used for energy research. It could be used to reduce the debt. Let’s start with the $12 billion over that 10 years that went for the production tax credit. That tax credit was supposed to be temporary in 1992.

Today, according to Secretary Chu, wind is a mature technology. Why does it need a credit? The credit is worth about 3 cents per kilowatt hour, if we take into account the corporate tax rate of 35 percent. That has caused some energy officials to say they have never found an easier way to make money. Well, of course not.

So we do not need to extend the production tax credit for wind at a time when we are borrowing 40 cents out of every dollar, at a time when natural gas is cheap and nuclear power is clean and more reliable and less expensive.

I would like to see us put some of that money on energy research. We only spend $5 billion or $6 billion a year on energy research: clean energy research, carbon recapture, making solar cheaper, making electric batteries that go further. I am ready to reduce the subsidies for Big Oil as long as we reduce the subsidies for Big Wind at the same time.

So let’s not even think about putting this tax break for the rich in the middle of an extension of a tax deduction for working Americans this week. Let’s focus on reducing the debt, increasing expenditure for research, and getting rid of the subsidies. Twenty years is long enough for a wind production tax credit for what our distinguished Nobel Prize-winning Secretary of Energy says is a mature technology.

12/23/11 UPDATED: What's it like living near 500 foot turbines? Ask the residents of Glenmore, Wisconsin AND National release of documentary "Windfall" announced AND Once turbines are up, wind company disputes taxes owed.

Video courtesy of

"At least eight families living in the Shirley Wind Project in the Town of Glenmore just south of Green Bay, are reporting health problems and quality of life issues since the Shirley Wind project went online in December of 2010. Six families have come forward, five of them testify on the video, and at this time two of them have vacated their homes. STAND UP to protect people, livestock, pets, and wildlife against negligent and irresponsible placement of industrial wind turbines."

-The Forest Voice

Next Feature:

WIND FARM IDEA ZAPPED BACK TO LIFE

By Kevin Murphy,

Via New Richmond News, www.newrichmond-news.com 

December 22, 2011 

MADISON – The clock began ticking Friday on state regulators to review an application to construct a 102.5 mega-watt wind energy farm in the towns of Forest and Cylon.

By statute, the Wisconsin Public Service Commission has 30 days to determine if the application submitted by Highland Wind Farm LCC is complete, and if so, then six months to approve or deny it. If necessary, a circuit court can grant the PSC a six-month extension.

The HWF project has been a controversy in the Town of Forest since the town board approved a wind development agreement with the wind farm developer, Emerging Energies of Wisconsin, in 2008. That agreement was modified in 2010 but proved to be unpopular with residents who removed the board in a recall election in February.

Rick Steinberger, elected in February, said that within a month the new board rescinded previously adopted wind development agreements and in August enacted a wind energy system licensing ordinance that Steinberger said better “protects the town than existing state regulations.”

“Realistically, we’re not protected by the state guidelines,” which is why the town adopted an ordinance with more restrictions than state regulations on turbine setbacks, noise levels and shadow flicker,” he said.

In response, HWF increased the size of the project from 97 to 102.5 megawatts, making it subject to state and not town regulation. How much involvement the town will have in the state’s approval process remains to be seen, said Steinberger.

“I’m just one vote on the board…and I haven’t read through the application yet and I don’t have a comment on it,” Steinberger said Monday.

Town Chairman Jamie Junker also said he would withhold any comment on the wind farm application and what response the town should take until he has reviewed it.

William Rakocy, a founding member of Emerging Energies, now EEW Services LCC, said the project was increased in size in response to an unresponsive town board.

“We would have been pleased to work with the town; we tried to in the past. The previous town board was reasonable to work with, but the new town board has not responded to any attempts to communicate with them so we’re going ahead,” Rakocy said.

Rakocy said the $250 million wind farm represents Wisconsin’s best option for renewable energy and should be approved.

“Every other energy source has a fuel requirement to bring it the state; there’s a fuel cost associated with bringing in coal, uranium for nuclear power and even natural gas. We don’t have any of those energy sources in Wisconsin but we do have wind,” he said.

Rakocy, of Hubertus, Wis., also said the project will need approval from several other state and federal agencies including the Wisconsin Department of Natural Resources.

Unlike public utilities, EEW Services LCC won’t have to prove there is a demand for the electricity produced by the project. Rakocy could sell the project once it’s approved but he disputed he was taking a route through the regulatory process that avoids having to prove demand.

“This doesn’t avoid anything. There’s been a clearly defined process in the state of Wisconsin for several years. There are questions to be answered by utilities and questions to be answered by independent power producers. We’ve answered the questions the application has required,” he said.

Rakocy said he hopes the economy recovers in the two to three years it takes to approve and construct the wind farm so there is more electrical demand. If the project is approved he will be look for an investor to fund and build it.

If the project goes according to plan, construction could start in early 2013 and be completed in about a year, Rakocy said.

The PSC retains siting jurisdiction over the HWF project. Although siting regulations approved by the PSC earlier this year have been suspended by the Legislature, the PSC will at least need to consider if the application is consistent with the suspended rules, according to statement the PSC issued Monday.

The PSC welcomes public comment on the project once it determines the application complete. The application has been posted to the PSC’s website: psc.wi.gov. The HWF docket number: 2535-CE-100.

NOTE FROM THE BPWI RESEARCH NERD: William Rackocy is the same developer who put together the Shirley Wind project, the subject of the video above. Read more about Mr. Rakocy HERE and HERE

Watch the trailer from the award-winning documentary "Windfall" which includes video from Wisconsin wind projects. "Windfall" will be released nationally in February of 2012

"Wind power... it's sustainable ... it burns no fossil fuels...it produces no air pollution. What's more, it cuts down dependency on foreign oil.

That's what the people of Meredith, NY first thought when a wind developer looked to supplement the rural farm town's failing economy with a farm of their own -- that of 40 industrial wind turbines. But when a group of townspeople discover the impacts that a 400-foot high windmill could bring to their community, Meredith's residents become deeply divided as they fight over the future of their community. With wind development in the United States growing annually at 39 percent, Windfall is an eye-opener for anyone concerned about the environment and the future of renewable energy."

Next Feature:

From Illinois

DISPUTE STILL STANDS AS WIND CAPITAL PAYS UP

by Andrew Gaug, St. Joseph News-Press,

via www.newspressnow.com

December 22, 2011 

What appeared to be an early Christmas present has turned into an unholy mess, as Wind Capital Group dropped off its property tax payment to DeKalb County on Thursday.

Receiving two checks totaling $1,967,572, delivered to the DeKalb County Courthouse by Stephen Bode, Wind Capital Group operations manager, county officials aren’t sure if they can distribute any of it.

Though the attitudes remain heated between the county and wind farm company, which runs the Lost Creek Wind Farm, over a property tax assessment, County Assessor Ruth Ross was originally pleased to see the company pay part of what she said it owes.

While awaiting judgment from the Missouri State Tax Commission concerning property tax assessment, more than $1 million of the paid taxes will be placed in an escrow account. Not disputing the remaining $951,021.62, the amount Wind Capital Group stated it feels is the correct total it should pay, it was expected to go immediately to DeKalb taxing entities such as schools and fire protection.

“I think this is a wonderful thing that Wind Capital is doing. They’re not disputing it all, and the taxing entities of Missouri will benefit greatly from that money … being dispersed before the first of the year,” she said.

That may not be the case, County Treasurer Jody Pearl stated, as she considered Ms. Ross’ information conflicting with what she was told — that all of the money, including the undisputed amount, would go into the escrow account.

“According to my attorney, (it will) not (be distributed) without an order from the State Tax Commission instructing me how to distribute it,” she said.

Citing Missouri State Statute 139.031, concerning disbursement of tax money during a dispute, Ms. Ross said the undisputed money should be ready to be sent out. In the meantime, she will be contacting her attorney to see what can be done.

Though Ms. Ross was smiling when talking about the schools, fire and police receiving money, she made it clear that issues with the company are anything but dashed.

In a release, Wind Capital stated its pride in paying what it felt was a fair share of the property tax and doing so in a timely manner. “Wind Capital Group believes very strongly in paying our fair share of property taxes in DeKalb County and has now done so,” Mr. Bode said. “For the Lost Creek Project, we have now paid more in property taxes than has ever been paid on a wind energy project in the state of Missouri.”

Considering the company’s statement a misnomer, Ms. Ross said the reason they’re paying more is because they have three times the wind turbines as any other wind farm in the state, and they’re still asking to pay less.

“I always take exception to the fact that they’re paying a lot more taxes to DeKalb County than they are to other counties,” she said. “That’s like you buying a new car and me buying three new cars and I’m expecting my taxes to be the same as yours.”

The company is disputing Ms. Ross’ assessed property tax value of about $297,000 per wind turbine, an amount she came to when using a formula created by former Wind Capital Group CEO Tom Carnahan. Assessors in several other counties in Northwest Missouri with wind farms have told the News-Press they used the same formula as Holt County, without conflict.

Protesting the proposed tax assessment, Wind Capital stated Ms. Ross’ formula is overblown and should be about $142,000. The case awaits a decision from the tax commission.

“We’re still a long ways from being settled, but I want to commend Wind Capital for letting us at least distribute that amount,” Ms. Ross said.

“It will be a huge benefit. Not as much as we would like, but it’s a step.”

5/29/11 Oh, THAT'S what a wind lease 'gag-order' looks like AND Component failure timeline and other delights: From the wind industry's point of view: pesky O&M costs biting into profits

WHAT'S BLACK AND WHITE AND YOU CAN'T TALK ABOUT IT FOR THE REST OF YOUR LIFE?

Sorry. I signed a wind lease. I can't discuss it.

NOTE FROM THE BPWI RESEARCH NERD: Better Plan has been collecting copies of wind leases for the last few years and has yet to find one that didn't contain a confidentiality agreement ---also known as a 'gag order'

Landowners who share wind leases are taking a clear risk, but more are coming forward anyway. One farmer who shared his contract said, "I don't care anymore. I just don't want this to happen to anyone else."

The section below is copied from a wind lease contract that came our way. The landowner who signed it agreed to allow noise, vibration, shadow flicker and any other disruption the turbines might cause to take place on his property. If he has problems with these things he can't talk about it because the gag order requires that he:

Not to talk about the contents of lease to anyone. 

Not to talk about the construction or operation of the turbines.

Not not speak to reporters or anyone in the media or issue statements or press releases unless the wind company gives the landowner their written permission.

The landowner also had to agree that the gag order would still apply long after the turbines are gone. This line says it all: "This section shall survive the termination of expiration of this lease"  It means this gag order is forever.

The landowner can talk to his lawyer or accountant and certain others about the contract but only after they agree to a gag order too. 

 STRAIGHT FROM THE CONTRACT:

Confidentiality

(Landowner) shall maintain in strictest confidence, for the sole benefit of (wind developer) all information pertaining to the terms and conditions of this lease, including, without limitation, the construction and power production of the wind farm.

Without first obtaining written permission from the (wind developer), (the landowner) shall not issue any statements or press releases or respond to any inquires from news media regarding such matters.

(Landowner) shall maintain the strictest confidence, for the sole benefit of the (wind developer) all information pertaining to the terms and conditions of this lease, including, without limitation, the financial terms hereof.

This section shall survive the termination of expiration of this lease.

Nothing in this section shall prohibit sharing or disclosing information with any party's (lawyer) accountants or current or prospective investors, purchases, lenders or as required by law, provided that the party sharing or disclosing such information requires the recipient to maintain the confidentiality of such disclosed information

FROM THE DEVELOPERS POINT OF VIEW

Wind Energy Update: Wind Farm O&M - Best Practice On Cost Containment Elusive

The constantly evolving wind turbine market means that new components must continually be demonstrated, with little assurance of their availability five years down the track in the event of component failure.

Posted on: Monday, 23 May 2011

SOURCE: "Wind Energy Update" VIA PR WEB

When it comes to turning a profit throughout the lifecycle of a wind farm, just a one percent improvement in operations and maintenance can make a huge difference to the bottom line, according to the latest Wind Energy Update Operations & Maintenance Report 2011.

(PRWEB) May 23, 2011

When it comes to turning a profit throughout the lifecycle of a wind farm, just a one percent improvement in operations and maintenance can make a huge difference to the bottom line, according to the latest Wind Energy Update Operations & Maintenance Report 2011. [Click here to download report]

The challenge, however, is how to achieve that one percent improvement in the face of operations and maintenance (O&M) costs that are double or even triple initial projections.

O&M costs under-estimated

On the basis of an exhaustive industry survey, the latest report finds that wind farm return on investment is around -21 percent. This underperformance is attributable to over-estimation of power production and underestimation of O&M costs say the report’s authors.

In the early days, the industry had costed out O&M at roughly 0.5c/kw over a turbine’s 20-year life. But as newer models and their respective components continued to flood the market, this has turned out to be far from the reality.

The report highlights that wind O&M costs can now be expected to increase on average 253 percent over the 20-year life of the various wind machines.

“Given that every wind turbine comprises an average of 8000 components, it is not surprising that higher-than-expected rates of component failure continue to plague the industry,” say the report's authors.

Understanding the root cause

The constantly evolving wind turbine market means that new components must continually be demonstrated, with little assurance of their availability five years down the track in the event of component failure.

Of even greater concern is that, if not properly addressed early on, component failures can persist through new product generations. It is therefore vital, despite pressure from competitors to continuously push the boundaries on nameplate capacities, that both the onshore and offshore industries adopt a backwards compatibility approach when evolving each model.

A thorough understanding of failure trends can also provide a basis for the best O&M practices for a given system, say the reports authors.

Sketching a component failure timeline, the authors characterise earliest wind turbine designs (1987-91) by their gearbox failures, while wind turbines built between 1994-99 are characterized by electronic power failures.

Turbines manufactured between 2000-2004, again exhibit problems with generators and gearboxes. More recent models are plagued with issues linked to retrofits.

Aftermarket potential

But there is a silver lining. Some component suppliers to the OEM wind turbine market view the aftermarket as a new, long-term opportunity.

“Advances in turbine design may make certain parts obsolete, but with a typical projected turbine life of 20 years or more, the aftermarket will provide ongoing spares demand for these suppliers for some time to come”, says the report.

The report also notes that in the long-run, as the wind industry matures and begins to validate the success of condition and performance monitoring systems, as direct drive turbines replace gear-box driven turbines, and as the industry begins to collaborate on O&M, reductions in long-term O&M costs are the most likely scenario.

DOWNLOAD Wind Energy Update Operations & Maintenance Report 2011.