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  #1  
Old 12-07-2005, 04:06 AM
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Wave energy: looks promising

Now that our oil supply seems to have reached its limits, and prices are running up accordingly, I stumbled on this project that seems very promising: electric energy generated by sea waves. Unit produces desalinated fresh water at the same time

http://www.energetech.com.au/index.htm?http://www.energetech.com.au/content/port.html
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  #2  
Old 12-07-2005, 05:50 AM
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I remeber reading about this technology, oh 35 years ago. Popular Science had at least one cover story about it. It seemed like a good idea, then. I have often wondered where was the application of what seemed like a very good idea.
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Old 12-07-2005, 07:57 AM
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I'd like to see coastal states with large tidal amplitudes get into it. Most of the Gulf coast has tidal amplitudes under 2ft. Wont work here.

B
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Old 12-07-2005, 08:20 AM
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Quote:
Originally Posted by Botnst
... Most of the Gulf coast has tidal amplitudes under 2ft. Wont work here...
You could make up for that between August and November...?
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  #5  
Old 12-07-2005, 08:23 AM
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Quote:
Originally Posted by A264172
You could make up for that between August and November...?
Oh yeah, talk about free energy. How'd ya like to be on that wave station?

Wha-hoooooo!!!
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Old 12-07-2005, 08:32 AM
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System basically works by the same principle as hydro dams. It would benefit coastal areas primarily, but there's a lot of sea coast on this planet... And the desalination function makes it particularly attractive for Third World regions, I'd say. Wouldn't even mind a couple of miles of these systems along our coast here: tidal movements in the North Sea are really big.
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Last edited by Vronsky; 12-07-2005 at 08:41 AM.
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  #7  
Old 12-07-2005, 08:37 AM
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Also following the first energy crunch was a proposal to make use of the salinity and temp gradient between shallow and deep ocean. As I recall it was supposed to draw electricity from the redox potential. It required a huge depth, like off the Hawai'ian islands.
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Old 12-07-2005, 02:38 PM
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Quote:
Originally Posted by Botnst
I'd like to see coastal states with large tidal amplitudes get into it. Most of the Gulf coast has tidal amplitudes under 2ft. Wont work here.

B
And I'm sure most of New England will adopt a "Not in my Ocean" policy.
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Old 12-07-2005, 09:05 PM
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And I'm sure most of New England will adopt a "Not in my Ocean" policy.
That's what I was thinking, too. I can imagine the east and west coasts balking at cluttering their ocean views with concrete and steel structures. It's okay for the little people in the South to clutter their beaches, but NIMBY!
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Old 12-07-2005, 09:17 PM
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Vron,

We must read all the same things! Hehe.

Naturally this would work great... but... well, you know what I'm going to say, so I'm not going to say it.

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  #11  
Old 12-07-2005, 09:18 PM
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Quote:
Originally Posted by Botnst
That's what I was thinking, too. I can imagine the east and west coasts balking at cluttering their ocean views with concrete and steel structures. It's okay for the little people in the South to clutter their beaches, but NIMBY!
NIMBY! Hehe (I haven't heard that since I had to deal with a town wanting to increase use of a private park!)

(Not In My Back Yard for folks scratching their head like I did the first time I saw it!)

I'm one of the few in that situation and I support the windmills and this type of project 100%!

But, I know I'm a rare bird...
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  #12  
Old 12-07-2005, 09:30 PM
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well seems like a green idea.. just wait... the extreme greenies will be like.. your causing sand erosion sea grass flats will be destroyed.. fish spawning.. yadda yadda yadda.. ive got the solution to their problems and its only 15 cents each person
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  #13  
Old 12-07-2005, 11:48 PM
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Quote:
Originally Posted by Vronsky
Now that our oil supply seems to have reached its limits, and prices are running up accordingly, I stumbled on this project that seems very promising: electric energy generated by sea waves. Unit produces desalinated fresh water at the same time

http://www.energetech.com.au/index.htm?http://www.energetech.com.au/content/port.html
Don't worry, we won't run out of oil anytime soon. In 1945 the goverment predicted we had 10 years left....
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Old 12-08-2005, 02:23 AM
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Quote:
Originally Posted by Emmerich
Don't worry, we won't run out of oil anytime soon. In 1945 the goverment predicted we had 10 years left....
Maybe not very soon, but I don't think the prices will come down anymore. Still, we have to start thinking seriously about alternative energies for our kids. Nuclear energy relies on plutonium and that resource is limited aswell, and the waste problem ain't solved yet either. The net gain of hydrogen, windmills and solar energy is still negative, so that's not the answer aswell. Coal and natural gas seem plenty around aswell, but that will heat up the planet. With China and India joining us as energy massconsumers, I'd say the end of oil is more sooner than later. Time to act.

OTOH: MB's run even better on methanol that's made from sugar cane, so at least that's one huge concern less...
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  #15  
Old 12-08-2005, 01:49 PM
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There's a pretty cool lunar energy plant on the north coast of France. Dam across the mouth of a large bay. Open dam. Tide floods in. Close gates. Tide goes out. Open turbine gates and generate electricity until tide turns. Open gates again. Had a lock to permit entry/exit into the bay.
I really wanted to go inside the dam and witness the whole process when I was there a couple of years ago, but due to terrorist concerns, the tours had been cancelled.
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