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Sunday, 19 June 2011

Wind Turbine Waste Mountain.


Broken Wind Turbine Blades Create Mountainous Waste Problem  - June 12th,

Ultra-green Denmark admits it has no idea what to do with a worrisome mountain of old and broken wind turbine blades. The composite material can’t be recycled. In a story from Denmark’s leading business newspaper Dagbladet Børsen (June 10, 2011) experts warn, “As the wind becomes a central part of energy supply, a huge waste problem is growing with similar speed.”  Windy Scandinavia has hit this unanticipated hurdle because a key material in constructing wind turbines, carbon fibre composite, cannot be recycled and is fast filling landfills or else is being burned creating toxic emissions. The report admits, “a gigantic mountain of scrap blades is building up.”

Tom Løgstrup Andersen from Risø DTU, a senior development engineer who has spent two decades researching fiberglass composites admits, "When a turbine is operating, it produces green energy. But when it is worn, it is suddenly a problem. There exists no concrete solution to reusing blades from wind turbines.”

Poor Planning, Poor Technology Defeats Renewables Goal - Denmark has 6,000 wind turbines serving a population of 5.3 million and when the wind conditions are just right wind produces a mere 19 percent of its electricity. Yet despite huge financial investment no conventional power plant has yet been shut down while Danish electricity costs to consumers are the highest in Europe, according to research by energy specialist, Dr. Vic Mason.

Turbine blades routinely exceed 60 meters in length and nearly all are manufactured from thermoset plastics that cannot be recycled once their useful life has expired. The special plastic is the only material currently known that meets reliability standards due to their relatively high strength and low weight properties.

Dr. Mason cites evidence that many small turbines have collapsed in close proximity to human dwellings [1; 2; 3], and recently two big Danish wind turbines lost blades and scattered sharp pieces of carbon fibre up to 500 meters from the tower base in high winds [4.]. Similar events have also been reported in Sweden, northern England and Scotland [5.]. Blade failure can be lethal and catastrophic as shown by  video footage.

http://www.liveleak.com/view?i=cdd_1203701257

Indeed, the death toll from wind turbines in recent decades is huge when compared with nuclear accidents. In 2008 in the U.S. alone there were 41 worker fatalities and 16 non-worker deaths. As the film shows, ironically, in high winds the turbines must be stopped because they are easily damaged. Carbon fibre has been the material of choice because of lightness and efficiency of construction. But the stress damage to fibre composites is poorly understood to begin with and wear and tear on blades can be considerable. Also, over time a build-up of dead bugs, plus other wear and tear reduces the power generated by 20 to 30 percent. So for safety and efficiency the blades must be regularly replaced.

Europe Fears Toxic Waste Wind Turbine Mountain - Currently the global market for wind turbine blades is growing at over 10 percent growth per annum and worth around US$2 billion a year. But shortsighted thinking has lead to a situation where the greatest challenge now is to develop a profitable and safe recycling process for the unwanted carbon fibre blades. Since 2004, most European Union (EU) member states passed laws forbidding landfill disposal of carbon fibre composites. Further, incineration of plastics is discouraged because of the potential release of toxic byproducts.

Professor Henning Albers from the Institut für Umwelt und Biotechnik, Hochschule Bremen, calculates that at current growth rates by 2034, there will be a mountain of 225,000 tonnes of unwanted rotor blade material waste EACH YEAR. That’s a lot of landfill!

Investors Bail out of Renewables Sector. The aircraft industry, a long-time user of composite plastics has, itself, had little success in solving the landfill problem. The aviation industry has tried to minimize landfill tipping by grinding down the thermoset composites into granules for use as filler materials (e.g., in asphalt). But there isn’t a commercial market for such waste. A report by Compositesworld.com agrees, “a major cost barrier in composites recycling is that collected composite waste must be sorted — one of the more labour-intensive aspects of conventional recycling processes.”

Summing up the lack of forward planning about wind turbines physicists and environmental activist, John Droz, jr, warns, “just because a power source is an alternative, or a renewable, does NOT automatically mean that it is better than any conventional or fossil fuel source.”

http://johnosullivan.livejournal.com/

References:

[1.] B.B., 2000: “Vindmølle lækkede olie. Kollapset vindmølle ved Rærup erstattes snart af ny”. “[Wind turbine leaked oil. Collapsed turbine near Rærup will soon be replaced by a new one]”. Nørresundby Avis, 09-02-2000.

[2.] Bülow, T., 2001: “Exit Tjærborg”. Eltra magasinet, August 2001.

[3.] Ritzau, 2005: “Vindmølle mistede sine vinger”. “[Wind turbine lost its blades]”. Jyllands-Posten, 21-01-2005.

[4.] LiveLeak, 2008: “Windmill out of control” (Video of wind turbine exploding).

[5.] Krøyer, K., 2008: “Endnu en Vestas-mølle kastede vinge 100 meter væk i blæsten”. “[Yet another Vestas wind turbine throws its blade 100 metres in the wind]”. Ingeniøren, 25-02-2008

Thursday, 26 May 2011

Economic Suicide

Your's Truly getting back at the Armageddon Apoplectic

Saturday, 2 October 2010

Royal Society: New guide on climate change.

Royal Society Bows To Climate Change Sceptics

The Times, 30 September 2010

Ben Webster

Britain’s leading scientific institution has been forced to rewrite its guide to climate change and admit that there is greater uncertainty about future temperature increases than it had previously suggested.

The Royal Society is publishing a new document today after a rebellion by more than 40 of its fellows who questioned mankind’s contribution to rising temperatures.

Climate change: a summary of the science states that “some uncertainties are unlikely ever to be significantly reduced”. Unlike Climate change controversies, a simple guide — the document it replaces — it avoids making predictions about the impact of climate change and refrains from advising governments about how they should respond.

The new guide says: “The size of future temperature increases and other aspects of climate change, especially at the regional scale, are still subject to uncertainty.”

The Royal Society even appears to criticise scientists who have made predictions about heatwaves and rising sea levels. It now says: “There is little confidence in specific projections of future regional climate change, except at continental scales.”

It adds: “It is not possible to determine exactly how much the Earth will warm or exactly how the climate will change in the future.

“There remains the possibility that hitherto unknown aspects of the climate and climate change could emerge and lead to significant modifications in our understanding.”

The working group that produced the new guide took advice from two Royal Society fellows who have links to the climate-sceptic think-tank founded by Lord Lawson of Blaby.

Professor Anthony Kelly (Pic. Left) and Sir Alan Rudge (Pic. Right) are members of the academic advisory council of the Global Warming Policy Foundation. They were among 43 fellows who signed a petition sent to Lord Rees, the society’s president, asking for its statement on climate change to be rewritten to take more account of questions raised by sceptics.

Professor John Pethica, the society’s vice-president and chairman of the working group that wrote the document, said the guide stated clearly that there was “strong evidence” that the warming of the Earth over the past half-century had been caused largely by human activity.

Meanwhile, the Government is planning an exercise to test how England and Wales would cope with severe flooding caused by climate change. Exercise Watermark will take place in March and test emergency services and communities on a range of scenarios that could occur.

The Times, 30 September 2010

More media coverage:

Niall Firth: Royal Society issues new climate change guide that admits that there are 'uncertainties' about the science (Daily Mail)

Duncan Clark: Royal Society's climate change guide cuts confusion out of the hard science (The Guardian)

Andrew Montford: Royal Society on climate change (Bishop Hill)

Anthony Watts: Royal Society blinks – embraces sceptics and uncertainty (Watts Up With That)

Wednesday, 29 September 2010

Windfarm bases failing?


Is there big trouble brewing for wind farms? Read it here.

Monday, 27 September 2010

The cost of one wind-farm to taxpayers


The Sunday Telegraph, 26 September 2010

Christopher Booker

In all the publicity given to the opening of "the world's largest wind farm" off the Kent coast last week, by far the most important and shocking aspect of this vast project was completely overlooked. Over the coming years we will be giving the wind farm's Swedish owners a total of £1.2 billion in subsidies. That same sum, invested now in a single nuclear power station, could yield a staggering 13 times more electricity, with much greater reliability.

The first all-too-common mistake in the glowing coverage accorded to the inauguration of this Thanet wind farm by the Climate Change Secretary, Chris Huhne, was to accept unquestioningly the claims of the developer, Vattenfall, about its output. The array of 100 three-megawatt (MW) turbines, each the height of Blackpool Tower, will have, it was said, the "capacity" to produce 300MW of electricity, enough to "power" 200,000 (or even 240,000) homes.

This may be true at those rare moments when the wind is blowing at the right speeds. But the wind, of course, is intermittent, and the average output of these turbines will be barely a quarter of that figure. The latest official figures on the website of Mr Huhne's own department show that last year the average output (or "load factor") of Britain's offshore turbines was only 26 per cent of their capacity.

Due to its position, the wind farm's owners will be lucky to get, on average, 75MW from their windmills, a fraction of the output of a proper power station. The total amount of electricity the turbines actually produce will equate to the average electricity usage not of 240,000 homes, but of barely half that number.

A far more significant omission from the media reports, however, was any mention of the colossal subsidies this wind farm will earn. Wind energy is subsidised through the system of Renewables Obligation Certificates (ROCs), unwittingly paid for by all of us through our electricity bills. Our electricity supply companies are obliged to buy offfshore wind energy at three times its normal price, so that each kilowatt hour of electricity receives a 200 per cent subsidy of £100.

This means that the 75MW produced on average by Thanet will receive subsidies of £60 million a year, on top of the £30-40 million cost of the electricity itself. This is guaranteed for the turbines' estimated working life of 20 years, which means that the total subsidy over the next two decades will be some £1.2 billion. Based on the costings of the current French nuclear programme, that would buy 1 gigawatt (1,000MW) of carbon-free nuclear generating capacity, reliably available 24 hours a day – more than 13 times the average output of the wind farm.

The 100 turbines opened last week cost £780 million to build, which means that the £100 million a year its owners hope to earn represents a 13 per cent return on capital, enough to excite the interest of any investor. And these turbines are only the first stage of a project eventually designed to include 341 of them, generating subsidies of £1 billion every five years.

A final claim for the Thanet wind farm (which Mr Huhne boasts is "only the beginning") is that it will create "green jobs" – although the developers say that only 21 of these will be permanent. These are thus costing, in "green subsidies" alone, £3 million per job per year, or £57 million for each job over the next 20 years. The Government gaily prattles about how it wants to create "400,000 green jobs", which on this basis would eventually cost us £22.8 trillion, or 17 times the entire annual output of the UK economy.

If all this sounds dizzyingly surreal, the fact remains that we must begin to grasp just what the green fantasies of Mr Huhne, the EU and the rest are costing us. Even the Queen, we learn, tried to claim a "fuel poverty" allowance for her soaring electricity bills, which have risen 50 per cent in the past year. But a crucial first step towards getting some grip on reality must be for those who report on these wind farms to stop hiding away the colossal price we are all now having to pay for one of the greatest scams of our age.

The Sunday Telegraph, 26 September 2010

Thursday, 23 September 2010

Are we returning to an ice age?

Solar scientists, not to be confused with climate scientists, study the most important heat engine driving our planet’s temperatures-the sun.

Matthew Penn and William Livingston, solar astronomers with the National Solar Observatory (NSO) in Tucson, Arizona, have found a marked decrease in sunspot activity lately. Studies show that such a marked drop in sunspots may lead to a prolonged cooling epoch or even a new ice age.

Since the formation of the Intergovernmental Panel on Climate Change (IPCC) in 1988 the talk has been about global warming. But 22 years on the evidence has grown to raise fears of a catastrophic climate switch in the opposite direction. We look at the evidence that is raising some very serious questions in the scientific community.
Zeeman Splitting Technique Raises Solar Alarm

Penn and Livingston used a measuring technique known as Zeeman splitting to study the magnetic strength of sunspots. The technique measures the distance between a pair of infrared spectral lines in a spectrograph from the light emitted by iron atoms in the atmosphere of the sun.

After examining 1500 sunspots they found that the average strength of the magnetic field of the sunspots has dropped by almost 40 percent in recent years. The reasons for the decline are unknown, but Penn and Livingston predict only half of the normal sunspots may appear on the surface of the Sun by 2021. Below that strength the formation of sunspots becomes almost impossible. More sunspots correlate with more global warming, fewer sunspots over a long period means prolonged cooling is likely.

Other Experts Confirm Fears

Backing up the claims is Australian Geophysicist, Phil Chapman, a former NASA astronaut. Chapman confirms the historic correlation of sunspots to global temperatures and points to the dearth of sunspots since 2007 as the reason why the world has since cooled by about 0.7C.

Writer, Alan Caruba (September 21, 2010) probes the story further after a June 14 article published in the New Scientist by Stuart Clark.

Caruba reports that Clark, “ raised the question of why and where the sunspots of gone. Noting that they ebb and flow in cycles lasting about eleven years, Stuart said, “But for the last two years, the sunspots have mostly been missing. Their absence, the most prolonged in nearly 100 years, has taken even seasoned sun watchers by surprise.””

Return to another Little Ice Age or Worse?

The last time sunspots disappeared altogether, during the Maunder Minimum (about 1645 to 1715), our planet descended into a lengthy period of cooling known as the Little Ice Age.

Prior to that an even more cataclysmic cooling event, known as the Younger Dryas happened 12,000 years ago. That sudden event plunged temperatures in the North Atlantic region to about 5°C colder and lasted for 1000-year duration.

Global Cooling Impacts Being Felt Now

Last year in the northern hemisphere, Britain suffered one of the worst winters in 100 years. While in the U.S. the National Weather Service (NWS) reported that the bitterly cold winter broke numerous temperature and snow extent records with 2010 seeing the 4th coldest February on record. New York and much of the U.S. Northeast was pumeled by record snow falls that deposited about 60cm (2 feet) of snow in NYC alone.

Worst Snow Falls Since 1970’s

Rutgers University Global Snow Lab also confirms that the 2010 Northern Hemisphere winter snow extent was the second highest on record, at 52,166,840 km2 and second only to February, 1978 which was slightly higher at 53,647,305 km2.

Indeed, it was in the 1970s, when climatologists were worried about the onset of an ice age, that we were warned of the ‘The Cooling World’ (Newsweek, April 28, 1975). Meanwhile Anna Petherick reporting for Nature.com ( August 27, 2010) shows that a brutal northern winter has been followed in the southern hemisphere by a viciously cold winter with an Antarctic chill killing millions of aquatic animals in the Amazon.

So will we see more scientists return to predicting global cooling due to changes in our sun?

From Climate Realists.