My Theory on Structural Design and Mathematical Modelling of a Revolutionary Uni-Directional Tidal Flap Turbine with Advanced Sea Bed Installation Methodology. The oceans have long been recognized as a potential source of energy. The ocean's motion carries energy in the form of tides, currents, and waves. The interest in tidal power is constantly increasing thanks to its high predictability, the huge potential of tides and the actual need for renewable energy. It explains the emergence of many tidal turbine designs, especially in Coastal Countries like India, often inspired from wind turbines. All of them are at a more or less early stage of development. But because of the high density of water, environmental drag forces are very large compared with wind turbines of the same capacity. Therefore the knowledge acquired by the wind industry is certainly qualitatively useful, but it has to be reconsidered to be applicable to tidal turbines. ...