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Directory:Ocean Current

Lasted edited by Andrew Munsey, updated on June 15, 2016 at 12:46 am.

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Template: 43 / Latest: Directory:Hydro > Directory:Tidal Power / Directory:Ocean Current > Directory:Marine Current Turbines Ltd - SeaGen, designed and developed by Marine Current Turbines Ltd. of Britain, works in principle much like an “underwater windmill”, with the rotors driven by the power of the tidal currents rather than the wind, and has now generated at its maximum capacity of 1.2MW. (PESWiki Jan. 7, 2009)
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HeliTube: Clean Energy from Ocean Currents - Hawaii Consulting Group is developing a bouyant tube to capture ocean energy. Tethered to the ocean floor, the HeliTube balloon rotates in the water current and transmits energy to a shore station via an inlet pipe. Electricity production costs are estimated at 2¢ per Kw-Hr. HeliTube Video on YouTube (4:26 minutes. September 22, 2008.)

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Directory:Davidson Hill Venturi by Tidal Energy Pty Ltd - Patented venturi containment system increases turbine efficiency 3.85 times what the turbine would produce without the system, making this a world leading design. The company is now commencing the commercialization stage, with an expected price that competes with coal in the range of 3.5 to 6 cents per kw-h.

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Template: 43 / Latest: Directory:Vortex Technologies / Directory:Hydro > Directory:Low Impact Hydro >Directory:Vortex-Induced Vibrations for Aquatic Clean Energy (VIVACE) - Inspired by the ability of fish to propel upstream with relative ease, VIVACE is ideal for converting natural vibrations in slow-moving ocean, river, and tidal currents into affordable and reliable energy. It is highly scalable and affordable, estimated at 5.5 cents/kw-h. (PESWiki Dec 31, 2008)
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Ing Arvid Nesheim - The MultiEnergy Device with waterturbine captures the kinetic energy in waves, ocean currents, rivers and streams and converts the energy into electricity. Moreover, the device can be equipped with a heat pump to convert the thermal energy in the ocean into useful energy.

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Gulf Stream's Energy Could Provide Power to Florida - The Center of Excellence in Ocean Energy Technology (CEOET) is developing a device that could procure up to a third of Florida's energy needs by tapping into the Gulf Stream's energy-dense waters. A field of underwater turbines could provide as much energy as several nuclear plants. (TreeHugger Dec. 5, 2007)

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New Technology Harnesses Ocean Energy from Florida's Gulf Stream - Cutting-edge technology will provide a clean, reliable, and renewable source of energy that can be used to generate electricity, unlimited hydrogen and potable water -- all cost-competitive with existing power technologies. (PhysOrg Nov. 17, 2006)

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The Gulf Stream Turbine - Generators and gearboxes are housed in watertight, rear-facing nacelles that serve as ballast to get the structure’s center of gravity far below its center of buoyancy. Carbon-fiber full-bladed rotors are suited to the nearly constant flow rate of the Gulf Stream off of South Florida.

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Ocean Renewable Power Company - ORPC is developing modular ocean current generation OCGen™ technology and incorporating it into tidal and ocean current generation projects. The company plans to deploy and test an OCGen™ Turbines Generation Unit at its Western Passage, Maine site in late 2007.

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Hydro-Gen - Hydro-Gen is a big floating paddle wheel included in a catamaran type turbine, for marine currents where a huge quantity of sea water must go through a bottle neck. The efficiency/cost ratio seems better with a paddle-wheel, because it is at the surface. Underwater projects are three to five times more costly.

Research and Development

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Directory:Hydro >Finding Nemo in a cruel sea - For 10 days, Nemo, the robot submarine, was, like its animated namesake, swept helplessly along by the East Australian Current until it was recovered. Dr. David Griffin hopes Nemo's findings will help unravel the secrets of the current. (Sydney Morning Herald Dec. 28, 2008)

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BIOWAVE: Biomimicry Solution for Ocean Power - BioPower Systems is currently testing a bioWAVE™ prototype off the coast of Tasmania. A prototype unit of 250kw will inform the company on how to best deploy a larger scale system which in turn is expected to provide power to Flinders and King islands, and in the future, if successful, the entire state of Victoria, home of the city of Melbourne. Windfarm video (Inhabitat May 15, 2008)

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US Researchers Hope to Tap Ocean Flows for Electricity - Researchers in Florida say even gentle flows of two or three knots of ocean or tidal currents could provide a cheap source of clean energy and help replace oil or coal-based systems. (Voice of America Mar. 6, 2008)

Oceans Eyed As New Energy Source - Just 15 miles off Florida's coast, the world's most powerful sustained ocean current - the mighty Gulf Stream - rushes by at nearly 8.5 billion gallons per second. And it never stops. To scientists, it represents a tantalizing possibility: a new, plentiful and uninterrupted source of clean energy. (PhysOrg Feb. 14, 2008)

Taiwan planning development of ocean current power - A 25-square mile region under the sea off Taiwan's east coast, fitted with 1,000 turbines, has the potential to supply 1.68 trillion kw-h/year, more than all of Taiwan's present power needs. The first step is likely to be the deployment of a 5 MW test turbine, hopefully to be completed in the next three years. (Taiwan Headlines July 2, 2007)