Articles filed under Technology from Europe

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

Decreasing Turbine Weight

According to Seco Tools, the U.S. should follow Europe’s lead in embracing efficient machining practices that decrease wind component weight and increase efficiency. Wind energy is one of the world’s fastest-growing sources of energy. According to a 2011 report provided by the World Wind Energy Association, China, the United States, Germany, Spain, and India were the top five wind power markets by total capacity in 2010. When it comes to producing wind turbine components as efficiently and inexpensively as some of these countries, however, the United States tends to lag behind. Why is that, and what can be done?
1 Mar 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

Norway plans the world's most powerful wind turbine

Norway plans to build the world's most powerful wind turbine, hoping the new technology will increase the profitability of costly offshore wind farms, partners behind the project said on Friday. With a rotor diameter of 145m, the 10-megawatt prototype will be roughly three times more powerful than ordinary wind turbines.
13 Feb 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

Lifeline for renewable power

To make use of this clean [renewable] energy, we'll need more transmission lines that can transport power from one region to another and connect energy-­hungry cities with the remote areas where much of our renewable power is likely to be generated. We'll also need far smarter controls throughout the distribution system--technologies that can store extra electricity from wind farms in the batteries of plug-in hybrid cars, for example, or remotely turn power-hungry appliances on and off as the energy supply rises and falls. If these grid upgrades don't happen, new renewable-power projects could be stalled, because they would place unacceptable stresses on existing electrical systems.
22 Dec 2008

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

Indian wind-turbine firm hits turbulence

The grand U.S. ambitions of Indian wind-turbine manufacturer Suzlon Energy Ltd. are facing mounting problems. The Indian company -- the world's fifth-largest wind-turbine maker by sales -- earlier this year acknowledged that 65 giant blades on turbines it had sold in the U.S. Midwest were cracking because of the extreme gusts in the region. The company is reinforcing 1,251 blades, almost the total it has sold in the U.S. Now, other problems are emerging, in part because the company quickly ramped up U.S. sales to meet burgeoning demand for alternative energy. ...
30 Jun 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

Turbulence ahead: India windmill empire begins to show cracks

In a filing with the U.S. Securities and Exchange Commission in February, Edison Mission Energy, a unit of Edison International, said the 144-foot-long windmill blades it recently bought from Suzlon have begun to split at three wind-power sites it operates in the Midwest. Suzlon has recalled 1,251 blades from its top-of-the-line turbines, which represent the majority of blades the company has sold to date in the U.S.. Its troubles don't end there. A year ago, the company bought a controlling stake in a large German turbine manufacturer, REpower Systems AG, in one of India's biggest overseas acquisitions. ...Now, Suzlon can't get its hands on the blueprints. Hamstrung by a German corporate law, Suzlon must offer to buy out minority shareholders before it can demand REpower's designs. It's unlikely that the company could make a tender offer until 2009, say people with knowledge of the companies. ...Mr. Kher blamed the cracks on the Midwest's unexpectedly violent changes in wind direction. Though Mr. Tanti says that only 45 blades have cracked, Suzlon says it will add an extra lamination layer to almost all of the blades it has shipped to the U.S. To repair cracked blades and reinforce the rest, the company expects to spend $30 million.
18 Apr 2008

http://www.windaction.org/posts?location=Europe&topic=Technology&type=Article
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