Library filed under Technology from UK

The Performance of Wind Farms in the United Kingdom and Denmark The Renewable Energy Foundation published this research paper by Dr Gordon Hughes, Professor of Economics at the University of Edinburgh, on the performance over time of wind farms in the United Kingdom and Denmark.  The paper can be downloaded by clicking on the link(s) on this page.  The UK and Danish data used in the analysis is also available below. The following summarises the results of the research.
19 Dec 2018

Navitus Bay windfarm could be “iceberg waiting for a Titanic”, says Poole councillor

Poole councillor Tony Woodcock said although the consultation report mentioned clutter on radar displays at the airport, there was no clear mention of any effect on ships radar and navigational systems. He said there was no study of the effect of the blade noise carried ashore by prevailing winds and no mitigation for 1.2 million migrating birds.
9 Oct 2013

Wind farm turbines wear sooner than expected, says study

The decline in the output of offshore wind farms, based on a study of Danish wind farms, appears even more dramatic. The load factor for turbines built on platforms in the sea is reduced from 39 per cent to 15 per cent after 10 years. ...Overall performance of wind farms in the UK has deteriorated markedly since the beginning of the century.
30 Dec 2012

Blow to wind turbines after Leamington trial

But environmentalists insisted a "shocking lack of research" had been carried out as to their actual effectiveness in built up urban areas. It prompted Leamington-based company Encraft to launch the Warwick Wind Trials in 2006, in which a total of 23 home owners who had paid for a turbine had their energy producing levels monitored.
29 Jul 2011

Vestas unveils radar-friendly stealth blades

Around 20GW of planned wind farms globally face objections from air traffic controllers because turbines interfere with radars near military bases or airports. Turbines can reflect radar waves, appearing on radar screens as 'clutter' in an unpredictable and confusing way.
30 Jun 2011

Activist says wind power not fiscally sound

Others may be concerned about health issues but he said his major concern deals with the financial impact of these energy producers, especially considering taxpayers will have to pay back the funds borrowed from China for Obama’s stimulus plan.
25 Nov 2010

Tide runs in favour of new £500m Solway renewable power project

The Solway Firth is at the centre of £500 million proposals to build a mile-long dam between England and Scotland fitted with energy-generating turbines, the Sunday Herald can reveal. The proposed tidal barrage, subject of a £60,000-£100,000 feasibility study commissioned by Scottish Enterprise, the Nuclear Decommissioning Authority (NDA) and Northwest Regional Development Agency (NRDA), would stretch over the River Solway from Annan in Dumfries & Galloway to Bowness-on-Solway in Cumbria.
20 Jun 2009

Giant turbines to make north Windy Central

The world's two most powerful wind turbines, with blades up to 500ft in diameter, are to be built on the Northumberland coast in clear view of northeast England's most renowned shorelines. ...The two machines are planned to be up to 650ft high, including their blades. At that height they would be more than 200ft taller than the current tallest turbines in Britain. ...Each could generate up to 7.5 mega-watts of power.
13 Jul 2008

University blazes trail for turbine research

Research which could transform worldwide production of large-scale wind turbines is being carried out at the University of Nottingham. Peter Schubel is leading a £1.4m project called Airpower which could make it eight per cent cheaper and 11% faster to manufacture the blades. ...Dr Schubel said large-scale blades were extremely labour intensive to produce under current methods - with up to 35 people at any one time working on a single blade. This also means there can be high levels of waste because of human error.
12 May 2008

Wind farms could be moored off Scotland

Britain's first mobile wind farm could be built off the Scottish coast under an ambitious plan to stop turbines blighting the countryside by mooring them miles out to sea. Highlands and Islands Enterprise (HIE) is in talks with Blue H, a Dutch company, to build a floating turbine platform that would be anchored to the seabed between Skye and the Uists. If the pilot scheme is successful, dozens more could be sited off the Scottish coast, thanks to new technology that allows turbines to be moored in waters up to 1,000ft deep. The new generation of turbines - which resemble small oil rigs - can be towed so far out to sea that they cannot be seen from the shore. ..."We want to get this technology working because Scotland's continental shelf drops off very quickly and we have very limited potential for shallow offshore wind. ..."
6 Apr 2008

Turbines shut down due to high winds

Turbines shuddering to a halt across the region in heavy winds are yet another flaw of wind power, opposition groups claimed last night. The structures cease to operate when wind speeds reach a certain level and do not generate electricity. Many wind farms shut down at 55mph, and some at 33mph. Figures released by the Met Office show that in February wind speeds reached 91 miles per hour in Newcastle, 79 mph at Boulmer, near Alnwick and 77 mph at Albemarle in Northumberland. But operators of wind farms in the North East have confirmed that with these strong gusts, there have been occasions when their turbines have been brought to a standstill.
10 Mar 2008

Repair plan for offshore windfarm

A cable that brings power ashore from an offshore windfarm has failed and needs to be replaced in the spring. E.on, the firm that owns Scroby Sands windfarm two kilometres off the Norfolk coast at Caister, said one of its three high-voltage cables had failed. This means that if the wind turbines are working at full capacity only 66% of the power can be brought ashore. E.on's other off-shore windfarm at Blyth, Northumberland, is also awaiting repair after a sub-sea cable broke. ..."As we move forward we learn how the equipment interacts with the environment. That's part of the learning process. A statement to the BBC released on behalf of energy minister Malcolm Wicks, said that off-shore windfarms were an emerging technology and that subsidising and investing in more was not a waste of money.
21 Jan 2008

Home wind turbines dealt a blow

Home wind turbines are significantly underperforming and in the worst cases generating less than the electricity needed to power a single lightbulb, according to the biggest study of its kind carried out in Britain. An interim report revealed that homeowners could be being misled by the official figures for wind speeds because they are consistently overestimating how much wind there is - sometimes finding that real speeds are only one third of those forecast. In the worst case scenario, the figures indicate that it would take more than 15 years to generate enough 'clean' energy to compensate for the manufacture of the turbine in the first place.
6 Jan 2008

Debate over giant turbines

Plans to build the country's biggest wind turbine off the Northumberland coast are set to be approved by councillors. If approved the project will see seven new turbines on the north site of the River Blyth to replace the existing Blyth Harbour wind farm. Six of the turbines will tower 125m from base to blade tip while the seventh, planned for the Battleship Wharf site at Cambois, would measure a total of 163m in height - the country's biggest to date. ...Blyth Valley Borough Council has already said it will not object to the project. The turbines will be more than three times bigger than the current structures and much more powerful.
3 Jan 2008

Results of Barratt's green house experiment

Volume house builder Barratt Developments has published preliminary findings from its experimental ‘eco village’ project in Chorley, Lancashire – a 15 month long test of how effectively ‘green’ technologies can be incorporated into new homes. ...wind turbines were judged ‘disappointing’. Both the 1.7m and 1m turbine performed below the theoretical available output based on the recorded wind speed throughout the trial period. Simple payback period analysis has not been carried out.
4 Dec 2007
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