The Development of Tidal Current Turbines and Issues for Future Design and Operation Ian Bryden Institute for Energy Systems, School of Engineering, University of Edinburgh, UK The first practical tidal turbine was installed in Loch Linnhe in the early 1990s. This system demonstrated the feasibility of tidal currents as sources of renewable energy. Since then, numerous alternative designs have been proposed, although most fall into one of four fundamental design concepts: horizontal axis, vertical axis, linear lift and venturi. This presentation will summarise the developmental history of tidal current technology, including the challenges which have driven the evolution of the most successful designs and will finally present those challenges which are being addressed for the next stages in development. In particular, the author believes that the turbines themselves are not the real issue!
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