Researchers Build Concrete-Composite Offshore Floating Wind Turbine

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Ann R. Thryft
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Re: Offshore winds have great potential
Ann R. Thryft   8/29/2013 3:00:17 PM
Thanks, Elizabeth, for this story. The concrete-composite combo makes a lot of sense. We've covered the use of corrosion-free composites used in pontoons and docks, and combining it with concrete clearly gives stability and weight where needed, as well as lower cost.

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Re: Concrete- Composite Floating Platform
Watashi   8/29/2013 3:39:11 PM
I can see the platform surviving a huricane, but not so sure about the composites.  If they build them like the oil rigs, maybe they will only need to replace the blades after big (cat 2+) storms. 

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Offshore Turbines
apresher   8/29/2013 5:51:07 PM
From past articles I've done, my understanding from suppliers is that offshore turbines (especially in North America) isn't gaining ground like it is in Europe and other places where available land is a factor. Maintenance costs are high for offshore, for example.

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Re: Offshore Turbines
a.saji   8/29/2013 11:58:01 PM
@apresher: In anywhere maintenance cost is considered as high most of the time.         

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Re: Offshore Turbines
akwaman   8/30/2013 3:46:35 PM
@a.saji: It is obvious to most, that the maintenance costs of offshore devices like this will be higher than the terrestrial based versions.  Of course, they may be offset by the fact that no costs at all will be incurred by land rental or purchase.  I personally would wonder if wind turbines in the open ocean would be better served using Darious rotors, for reduced costs of maintenance and safety.  Terrestrial based turbines with the generators at the top are maintained by people climbing them and doing the maintenance.  This might be easier with the Darius rotor in the open ocean, because the generator and gears are at the bottom.  This would also lower thecenter of gravity, making it more stable on a floating platform.

Elizabeth M
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Re: Concrete- Composite Floating Platform
Elizabeth M   9/3/2013 5:17:39 AM
Thanks for that information, Jim S. I wasn't exactly sure how the floating system works but that makes a lot of sense. I always thought the idea of a "floating" structure was a bit of a misnomer and there had to be some anchorage in there somewhere! So it is true.

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