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The Biggest Marine/Tidal Power Projects in the World!

 
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JMS



Joined: 25 Jul 2012
Posts: 13

PostPosted: Thu Aug 09, 2012 11:38 am    Post subject: The Biggest Marine/Tidal Power Projects in the World! Reply with quote

I came across this article which lists some of the biggest marine power projects in the world, in terms of current installed electrical capacity. Due to the high investment in setting up the project, a typical tidal power project is expected to break even between 8 and 12 years after commissioning. However I believe despite the long gestation period to make it commercially viable, tidal power has unparalleled environmental advantages .

http://www.power-technology.com/features/featureworlds-biggest-marine-power-projects/



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emordnilap



Joined: 05 Sep 2007
Posts: 13974
Location: Houǝsʇlʎ' ᴉʇ,s ɹǝɐllʎ uoʇ ʍoɹʇɥ ʇɥǝ ǝɟɟoɹʇ' pou,ʇ ǝʌǝu qoʇɥǝɹ˙

PostPosted: Thu Aug 09, 2012 12:29 pm    Post subject: Reply with quote

That second graphic implies that the tide only ever goes one way. Laughing
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biffvernon



Joined: 24 Nov 2005
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Location: Lincolnshire

PostPosted: Thu Aug 09, 2012 2:05 pm    Post subject: Reply with quote

I think that in some places, such as the sea between mainland Scotland and Orkney, the tidal stream flows in one direction all the time. There's a very long wave that makes the tide come in and out when viewed from the sea-side but out to sea it's different.
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biffvernon



Joined: 24 Nov 2005
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Location: Lincolnshire

PostPosted: Thu Aug 09, 2012 2:18 pm    Post subject: Reply with quote

edit - On second thoughts, I think the tidal stream in the Pentland Firth is mostly east-going but has a bit of west going as well. It's complicated Confused
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JMS



Joined: 25 Jul 2012
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PostPosted: Thu Aug 09, 2012 5:02 pm    Post subject: Reply with quote

I think these turbines only generates electricity for the tidal current moving one way, but there are proposals for a two-way rotors with a 1 MW rated capacity off the coast of Northern Ireland. Question
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