Technology
Wave Dragon is a floating, slack-moored energy converter of the 'overtopping' type which can be deployed as a single unit, or in arrays of up to 200 units; the output of such an array would have a capacity comparable to traditional fossil-fuel power plants.
The first prototype was connected to the power grid in 2003 and is currently deployed in Nissum Bredning, Denmark. Long term testing is under way to determine system performance; i.e. availability and power production under different weather and tide conditions. A multi-MW deployment is expected in 2009.
The Wave Dragon concept combines existing, mature offshore and hydro turbine technology. In the Wave Dragon, the Kaplan turbine is being tested at the Technical University of Munich. This turbine uses a siphon inlet whereas the next 6 turbines to be installed will be equipped with a cylinder gate to start and stop water inlet to the turbine.
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