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Harnessing the full potential of marine energy could provide enough power for up to 15 million homes and save up to 70 million tonnes of C02 by 2050 according to the Government’s Marine Energy Action Plan, released today. The document also highlights the potential for the marine energy sector to provide up to 16,000 jobs, with a quarter of these in exports.

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a 1,320-megawatt tidal power plant will be built on a 157.45-square-kilometer area of sea near the islands of Ganghwa, Jangbong and Yeongjong. The government will build it by 2017 at a cost of 3.92 trillion won ($3.0 billion), the report said.

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World Energy Research and Blue Energy Canada have signed an agreement to develop a 200 MW commercial tidal power project, Renewable Energy World reports. The cost is $500 million; the location isn't entirely clear. The technology? Blue Energy's vertical axis tidal turbine

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The 10 big energy myths
There has never been a more important time to invest in green technologies, yet many of us believe these efforts are doomed to failure. What nonsense, writes Chris Goodall

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There is no market yet for turbines that turn the tides into a source of energy from deep beneath the sea. But that has not stopped mechanical engineers at the University of Strathclyde's Energy Systems Research Unit (ESRU) in Scotland from developing one that will ride the tide while latched to the seabed by a cable—like a kite flying on a windy day.

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New York City has installed a new-and-improved aluminum alloy turbine in the East River, the only of its kind in the United States.

The turbine is the first of 300 which the city hopes to install in the waterway. Unlike the typical river which flows in a constant direction, the East River is a tidal straight with strong, fluctuating currents which allow for more efficient power generation. Once in place, the system could provide electricity to 10,000 households.

tidal energy tidal power new york

Oxford researchers have developed a new tidal turbine which has the potential to harness tidal energy more efficiently and cheaply, using a device which is simpler and more robust and scaleable than current designs.

They have designed, built and tested the device, a horizontal axis water turbine, to intersect the largest possible area of current. The rotor is cylindrical and rolls around its axis, catching the current.

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A tidal-power system has been connected to the National Grid in Northern Ireland. Built by the British tidal-energy company Marine Current Technologies (MCT), the 1.2-megawatt system consists of two submerged turbines that are harvesting energy from Strangford Lough's tidal currents

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