Nova Scotia Power plans to test the 1 MW turbine, which is 10 meters in diameter, for a year to assess environmental impact and durability. It sits on the seabed and generates power from the strong tides there.
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A flat, foil type device can be used to generate power in much shallower water. Traditional designs use a rotating blade to extract energy from the moving water. The diameter of this blade is limited by the water-depth and this reduces the amount of power that can be generated in shallow water. Pulse Tidal’s [...] Lunar Energy tidal turbines will be used in the project Sixty 300 ft. tall turbines on the sea floor will power 200,000 homes by 2015. The turbines are in deep water, where the environmental impact is less. [...] Alstom Hydro, a huge energy company, has signed an agreement with Clean Current Power Systems of Canada to commercialize tidal power products by 2012. Ocean Power Magazine has the details, including: Tidal stream power technology presents numerous advantages to the environment. It is clean, natural, invisible, and does not emit any greenhouse gases. Moreover, [...] Tidal and wave power remains a pricey way of creating power. The ocean is a rough place to site energy generation, and then there’s the question of getting the power to shore reliably. Salt, corrosion, and water turbulence takes a toll. There’s plenty of R&D going on in tidal and wave power. Hopefully someday [...] Clean Current turbine being deployed Several major tidal power projects are continuing. Sure, there are lots of technical hurdles, but if (and hopefully when) tidal power becomes a mature, dependable technology, we will have enormous amounts of renewable power at our disposal. [...] Photo credit Ifremer/Olivier Dugorna This new design from TidalStream for tidal power turbines claims to output up to 10MW per 6 turbine platform, substantially more than other designs. Plus, such power is generated completely silently and is not visible from the shore, which should keep NIMBYs happy. Let’s hope it can scale to commercial [...] Testing is underway in the U.K. on ‘Anaconda’, a giant rubber ‘snake’ that converts tidal wave energy to electricity. A full-sized Anaconda could reportedly power 1,000 homes. Planetizen has more. This is amazing stuff indeed. [...] Marine Current Turbines can be raised above water for maintenance. The turbulent seas off Scotland could product massive amount of tidal and wave power. However, the industry is still in its infancy, with technical issues and financing sometimes being problematic. However tidal power is steady and consistent, a major advantage. The WSJ details [...] The 6-knot currents and 20-foot tides in Eastport, Maine will be harnessed in a Coast Guard test to provide power for their station there. A major advantage of tidal power is that the power generation, unlike with wind or solar, is steady and can be predicted way in advance. |  | ||||
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