Subscribe to our free daily newsletters
  Wind Energy News  




Subscribe to our free daily newsletters



WIND DAILY
Study Shows Stability And Utility Of Floating Wind Turbines

These mammoth turbines are 70 meters tall and have rotors the size of a football field.
by Staff Writers
College Park MD (SPX) Jul 06, 2010
Wind turbines may be one of the best renewable energy solutions, but as turbines get larger they also get noisier, become more of an eyesore, and require increasingly larger expanses of land. One solution: ocean-based wind turbines.

While offshore turbines already have been constructed, they've traditionally been situated in shallow waters, where the tower extends directly into the seabed. That restricts the turbines to near-shore waters with depths no greater than 50 meters - and precludes their use in deeper waters, where winds generally gust at higher speeds.

An alternative is placing turbines on floating platforms, says naval architect Dominique Roddier of Berkeley, California-based Marine Innovation and Technology. He and his and colleagues have published a feasibility study of one platform design - dubbed "WindFloat" - in the latest issue of the Journal of Renewable and Sustainable Energy, which is published by the American Institute of Physics (AIP).

By testing a 1:65 scale model in a wave tank, the researchers show that the three-legged floating platform, which is based on existing gas and oil offshore platform designs, is stable enough to support a 5-megawatt wind turbine, the largest turbine that currently exists.

These mammoth turbines are 70 meters tall and have rotors the size of a football field. Just one, Roddier says, produces enough energy "to support a small town."

The next step, says Roddier, is building a prototype to understand the life-cycle cost of such projects and to refine the economics models. The prototype, which is being built in collaboration with electricity operator Energias de Portugal, "should be in the water by the end of summer 2012," he says.



Share This Article With Planet Earth
del.icio.usdel.icio.us DiggDigg RedditReddit
YahooMyWebYahooMyWeb GoogleGoogle FacebookFacebook



Related Links
American Institute of Physics
Wind Energy News at Wind Daily



Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News


WIND DAILY
Floating ocean wind turbines proposed
College Park, Md. (UPI) Jun 30, 2010
Wind turbines as a renewable energy source have problems of noise, visual clutter and land use, and one U.S. researcher says moving them offshore is a solution. Offshore wind farms have been built, but only in shallow water near coasts, and one naval architect wants to go much farther out by placing turbines on floating platforms, a release from the American Institute of Physics said We ... read more







WIND DAILY
First Concrete Pour For Haiyang Unit 2 Completed In Record Time

Saudi agrees on nuclear energy pact with France

Energy giants fund Myanmar nuclear drive: rights group

Improved security urged at Swedish nuclear plant

WIND DAILY
Envision Solar Announces The LifeVillage

Blue Jeans And Ink Dye Molecules May Lead To More Efficient Solar Cells

Solar power could create fuel for cars

Spire Receives DOE Grant To Develop LED Based Solar Simulator

WIND DAILY
New Technique Improves Efficiency Of Biofuel Production

Green, Bio-Based Process Developed For Producing Fuel Additive

Iowa Gains Momentum As Major Provider Of Biorenewables

China Now Ahead Of US In Patenting And Commercialization Of Bioethanol

WIND DAILY
Study Shows Stability And Utility Of Floating Wind Turbines

Leading French Wind Farm Developer Says Yes To Triton

Floating ocean wind turbines proposed

China to dominate wind power

WIND DAILY
Switching Off Your Lights Has A Bigger Impact Than You Might Think

Siemens unveils growth plans in Chinese power market

Transportation Is The Achilles' Heel Of Green Energy Efforts

Bill Signed To Foster Fledgling Renewable Energy Industry

WIND DAILY
Berkeley Lab Makes Cookstoves For Ethiopia

Natural gas: Promise for low-carbon future

A New Trendsetting Fuel Cell Alliance

Toshiba to make batteries for electric vehicles

WIND DAILY
Berkeley Lab Makes Cookstoves For Ethiopia

Natural gas: Promise for low-carbon future

A New Trendsetting Fuel Cell Alliance

Toshiba to make batteries for electric vehicles

WIND DAILY
GM auto sales in China slow in June

Chinese state fund to take a stake in Volvo: report

Turning Off The Air Conditioning Helps Save Fuel

New Design For Motorcycle Engines Powered By Compressed Air


The content herein, unless otherwise known to be public domain, are Copyright 1995-2010 - SpaceDaily. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement