The hydroelectric plant, Classification and site selection, Power available estimation, Water Turbines, Cavitation in Water Turbines, Governing Water Turbines, Types and application of water turbines, Hydroelectric plant Auxiliaries, Pumped Storage Power Plants. Wave height sensors, Calculation of wave spectra, Statistical moments of spectra; Hydro turbines: Impulse, Reaction, Free-flow, Self-rectifying. Tidal Barrages: Existing schemes, proposed schemes, Single and multiple basin modelling. Sources of data, Spectral models, Scatter diagrams. Tide theory, Basic principle of Tidal Power; Solar and Lunar gravitational pulls, Tidal cycles, tidal range, Spring-tides and neap-tides. Tidal power plants, : Installation, Operations, Decommissioning; Utilization of tidal power. Single Basin Concepts, Two Basin Schemes. Advantages and Limitations of tidal power generation., Harmonic constants, Effects of estuaries. Velocity/Current Scatter diagrams, Calculation of annual output of free stream turbines. Production of time series of tidal current speed versus velocity from tidal flow models. Vertical axis tidal current turbines, Horizontal axis tidal current turbines, Tidal fences. Environmental Impacts, Offshore devices. Hydropower Economics: Barrage project cash flow, Tidal fence project cash flow, Wave farm cash flow.