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Floating Oceanic Windmills Could Producer More Power An Be More Economic

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posted on Sep, 18 2006 @ 06:20 PM
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Windmills that would float hundreds of miles out at sea could
one day help satisfy our energy needs without being eyesores
from land, scientists said today.

Researchers at the Massachusetts Institute of Technology and
the National Renewable Energy Laboratory (NREL) have designed
a wind turbine that can be attached to a floating platform.
Long steel cables would tether the corners of the floating platform
to a concrete-block or other mooring system on the ocean floor,
like a high-tech ship anchor. The setup is called a "tension leg
platform," or TLP, and would be cheaper than fixed towers

The floating platforms to sway side to side but not bob up and down.
Computer simulations suggest that even during hurricanes, the
platforms would shift by only about three to six feet and that the
bottom of the turbine blades would revolve well above the peak
of even the highest wave.
Dampers similar to those used to steady skyscrapers during
high winds and earthquakes could be used to further reduce
sideways motion, the researchers say.

The researchers estimate their floater-mounted turbines could
work in water depths ranging from about 100 to 650 feet.
This means that in the northeastern United States, they could be
placed about 30 to 100 miles out at sea.
Because winds are stronger farther offshore, the floating windmills
could also generate more energy—5.0 megawatts (MW), compared
to 1.5 MW for onshore units and 3.5 MW for conventional offshore
setups.


SOURCE:
LiveScience.com


Very cool, and a great development.

I always liked the idea of going to some beach and seeing
windmills jutting out of the ocean myself.


Comments, Opinions?




posted on Sep, 18 2006 @ 06:48 PM
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hmmm, I wonder how the electricity would make it to shore?
above sea/land cables or underwater cables?.... Anything to get us off of oil, before oil poisons or just kills us all....



posted on Sep, 18 2006 @ 07:05 PM
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There are big cables that are built into the support systems
that go down to the seafloor and than run to the land.



posted on Sep, 18 2006 @ 11:37 PM
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Here are some windmills to compare with. Norwegian windmills from Hydro.


Floating windmills




Floating windmill positioned off Karmoy



posted on Sep, 18 2006 @ 11:40 PM
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Windfarms are not more effecient than burning gasoline and coal and the rest. Windfarms are, in fact, extremely inefficient, and are not anywhere near close to being a reasonable alternative, or even a moderately helpful supplement.

Having said that, they have potential for future use, and, christ, we gotta do something.



posted on Sep, 18 2006 @ 11:48 PM
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Actually in parts of the world, wind power is more cost competitive then fossile fuels. You gotta take the location and then implentation into account. Various messure have to be taken for large windfarms, the installation needs large flow battery installations to store large amounts of electricity generation by the wind when electricity is in low demand. Flow batterys have many advantages in that they are scalable to massive proportions. There are several variants and a few are not that dangerous and can store a reasonable amount of juice. Also, in low wind conditions you need to look at completely different designs for turbines. The Gaviotas designed sunflower turbine is designed to work in extremly wind-poor conditions. I'm not sure of the output, but anything helps(and the looks is more farmy then techno-industrial cuz the real ones are made out of 80% recycled materials)



posted on Sep, 19 2006 @ 03:34 PM
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Wind farms are not more competitive than fossil fuel power, even in hurrican alley. Its the very reason why they're not widely used, because they blow.



posted on Sep, 16 2007 @ 12:48 AM
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You could also use the ocean as a power source.

www.oceanpd.com...





posted on Sep, 16 2007 @ 11:57 AM
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reply to post by Freezer
 


That's the Pelamis
I got a thread here:

World's First Commercial Wave Farm - Pelamis






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