21 Nov '11, 5pm

Wind Turbine Gearbox Study Raises Reliability Hopes

Wind Turbine Gearbox Study Raises Reliability Hopes

The identified damage modes in wind turbine gearboxes include the early onset of gear and bearing surface damage, such as scuffing and micropitting. The risk of this is difficult to accurately assess but the influence factors are well known — both are strongly affected by surface roughness of the contacting parts. Fortunately, it is well accepted that risk can be mitigated by controlled initial wear-in or run-in. A controlled run-in has been a requirement in the wind turbine gear industry since 2002, when the ANSI/AGMA/AWEA 6006 wind turbine gear standard was published. This is normally performed in factory serial acceptance testing in timed load stages of 30-60 minutes. GRC performed run-in of its two 750 kW gearboxes in the NREL 2.5 MW dynamometer test facility using a modified version of the standard procedure currently performed at most WTG gearbox manufacturing facili...

Full article: http://www.renewableenergyworld.com/rea/news/article/2011...

Tweets

Contra-rotating wind turbine more efficient, much quieter. The future of wind power?: Filed under: Energy News

Contra-rotating wind turbine more efficient, mu...

cleanbreak.ca 19 Nov '11, 11pm

My Clean Break column today takes a look at a wind turbine design out of the University of Ottawa. It’s a twin contra-rota...

Wind Updates: Innovations and Improvements

Wind Updates: Innovations and Improvements

renewableenergyworld.com 23 Nov '11, 3pm

Pitch control systems are housed within the spinner of the turbine and rotate at around 30 RPM, so using lead acid batteri...

Scots approve giant two-bladed offshore wind turbine

Scots approve giant two-bladed offshore wind tu...

businessgreen.com 21 Nov '11, 1am

The Scottish government has approved an offshore test site for an innovative 6MW wind turbine, marking a major step forwar...

wpd builds 36.8 MW wind farm in Croatia: wpd ha...

renewableenergyfocus.com 22 Nov '11, 9am

Generation innovation for wind turbines Part two: We continue our focus on cost reduction in wind energy, and ask some maj...

On Our Radar: Made With the Wind

green.blogs.nytimes.com 21 Nov '11, 10pm

On Our Radar: Made With the Wind By THE NEW YORK TIMES Companies including Motorola Mobility, Lego, Deutsche Bank and Bloo...

Bolivia is to start using wind farms - great news! #bolivia

Bolivia is to start using wind farms - great ne...

renewableenergymagazine.com 22 Nov '11, 12pm

In February 2010 a meteo tower was installed in Bolivia to collect data confirming the existence of sufficient wind energy...

Wind Turbines and Bird Fatalities

Wind Turbines and Bird Fatalities

greentechmedia.com 22 Nov '11, 4pm

Last month, biologists found 484 bird carcasses at the AES -owned Laurel Mountain wind installation in West Virginia. The ...

Wind Power Getting Cheaper, Turbines More Effic...

greenbuildingadvisor.com 22 Nov '11, 2pm

Back in 2007, the output capacity of utility-scale wind turbines in the U.S. was a little over 16,500 megawatts – a tiny f...

Airborne Wind Turbine Could Revolutionize Wind Power

Airborne Wind Turbine Could Revolutionize Wind ...

cleantechnica.com 16 Nov '11, 3pm

The secret to the air turbine design lies in using a fraction of the material necessary for a standard wind turbine. A con...

Who installs wind turbines? | Southwest Windpow...

windenergy.com 20 Nov '11, 1pm

As the world’s leading manufacturer of small wind generators, Southwest Windpower takes pride in the quality of our produc...

1st Small Wind Turbine Gets AWEA Certification

cleantechnica.com 25 Nov '11, 4pm

The Bergey Excel 10 is a 23 ft diameter horizontal-axis turbine designed to provide the annual energy requirements for hom...