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Now for the good news; China: pulling energy from the ocean
Topic Started: Apr 2 2014, 12:57 AM (62 Views)
Banandangees
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Fire & Ice Senior Diplomat
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China's Wager: Pulling Energy From the Ocean

Lengthy Coastline, Pollution Make Country a Prime Testing Ground in Joint Ventures With Western Firms



Harnessing the Sea


Three types of systems that are in the works to create electricity from the ocean:


1. Under water tide-driven turbine farm:

....How it works: Farms of sea-bed turbines in areas with strong tidal currents generate electricity. When the tide changes direction, the turbines swivel.

....Energy capacity: 15-megawatt turbines producing a total of 398 megawatts.

.... Timing: First power will be generated off the coast of Scotland in 2015; full 398-megawatt project due to be completed in 2020.


2. Dynamic tidal-power wall:

.... How it works: Twenty-mile wall across shallow sea with hundreds of underwater openings houses turbines that generate power from the ebb and flow of the tides.

.... Energy capacity: 8,000 megawatts

.... Timing: Feasibility studies are under way in China; construction is unlikely to start before 2024.


3 Ocean thermal-energy conversion

.... How it works: Warm surface water heats ammonia, produces vapor and drives a turbine. Cold, deep water condenses the vapor producing a constant flow of electricity.

.... Energy capacity: 10 megawatts, possibly upscaled to 100 megawatts

.... Timing: Site selection in Asia by June; 10-megawatt plant expected to be operational in mid-2017


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wanderingjays
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You might find this interesting
http://www.tocardo.com/
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Berton
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That was interesting wanderingjays. Thank you for the link.

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First thing that comes to mind is the Bay of Fundy. Tidal power as long as there are no issues with shipping is less of an eyesore than wind turbines. In BC nearly all pur electricity is water generated. Dams of course have ecological implications.
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wanderingjays
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There is a lot of research and experimentation going on with tidal generation . It looks better and better.
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wanderingjays
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here's another good site

http://www.alternative-energy-news.info/technology/hydro/tidal-power/
Edited by wanderingjays, Apr 2 2014, 06:05 AM.
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