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Vestas and Mitsubishi Planning to Build Biggest Offshore Wind Turbine

By Stefan Nicola and Gelu Sulugiuc, Bloomberg
November 27, 2012   |   2 Comments

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1 of 2
November 27, 2012
The world's biggest wind turbine will be constructed in Norway. The prototype turbine will stand 162 meters (533 feet) tall and feature a rotor diameter of 145 meters (475 feet). It is expected to be capable of generating 10-megawatts – enough to power 2,000 homes. The turbine will be tested on land in Øygarden in Hordaland County, Norway, for two years but is intended for offshore placement, where the winds are stronger and more consistent, and the concerns of ruined views and vibrations are removed.
Like the HyWind turbines, the turbines to be built by Sway AS are floating turbines. The Sway system is based on a floating tower which extends far below the water surface. The tower consists of a floating pole with ballast in the lower end, similar to a floating bottle. The tower, which is filled with ballast, has its center of gravity located far below the center of buoyancy of the tower. This gives the tower sufficient stability to resist the large loads produced by the wind turbine mounted on top of it.

I think there must be a limit to the size of the Wind Turbine. In the past NASA has designed and developed MOD -A and MOD - B large Wind turbines and Growian in Germany. They were not successful as the technology was much ahead of the times. However the oldest large wind turbine has been Tvind Windmill in Denmark which has been successfully running. I saw it in 1999. It was a wonderful feat by students and teachers of Tvind Schools as an answer to do away with Nuclear power. There is a lift inside which takes tourists to the top. Incidentally it is a Downwind machine (where the wind strikes the tower first and then the blades (now a days we have only upwind machines which operate in reverse).
The bigger the machine it should be fool proof. Any small down time costs heavily.

No doubt BIG IS BOUNTIFUL but SMALL IS BEAUTIFUL too!
Dr.A.Jagadeesh Nellore(AP),India
Wind Energy Expert
E-mail: anumakonda.jagadeesh@gmail.com
Comment
2 of 2
December 1, 2012
We all hope for those mega wind turbines to harvest the very strong north winds of Norway ,Scotland ,Japan ,Canada ,Alaska and Greenland
same as the ones blowing in the south off Australia,New Zealand ,Chile and Argentine
That could boost the subpolar economies!
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