NOVELTY - The system has a platform (PF) fixed to the sea bottom, in the immersed part is a holding cover (PS) below which is rigidly fixed a sealed enclosure (G) on top of which is an upper reservoir (RS). A sea floating enclosure (CF), containing the sealed enclosure (G), has a lower reservoir (RI) in its base which is filled with a given volume of fresh water (EAU), water flows from one to the other with a minimum space (E) between the walls during a rising and ebbing tide.    USE - For electricity generation using tidal power.    ADVANTAGE - The system advantages are as follows: perpetual movement of the same volume of fresh water; the hydraulic turbine is not in contact with salt water..    DETAILED DESCRIPTION - Tidal water raising system using water pressure of a rising tide to transfer a given volume of water to a lower floating reservoir to a fixed reservoir installed at a greater height. The height difference creates a waterfall sufficient to rotate a hydraulic turbine for production of electrical energy during an ebbing tide. The floating enclosure (CF) slides between rollers fixed to the inside of the sealed enclosure and the outside of the platform (PF). The lower part of the sealed enclosure is connected to the base of the upper reservoir (RS) by tubes, fitted with valves at each end, designed to fill the upper reservoir with fresh water (EAU) pressurized by the lower reservoir during a rising tide. The number and diameter of the tubes vary dependent upon the volume of water used. THE enclosure (G) is installed in a sealed cell with a alternator-turbine group (TA) fed with fresh water (EAU) by a pipe (C) from the upper reservoir during ebbing tide. The fresh water output after electrical energy production is towards the lower reservoir (RI). A floater base is rigidly fixed under the foaling casing (CF) to prevent it from sinking into sea when an upward pressure is exerted by the floating enclosure (CF) against the lower reservoir (RI) during a rising tide.    DESCRIPTION OF DRAWING(S) - The drawing shows the components of the system.    floater base (BF)    pipe (C)    floating enclosure (CF)    space (E)    fresh water (EAU)    sealed enclosure (G)    control room (PC)    platform(PS) frame (PF)    cable conduit (PDC)    rollers (R)    lower reservoir (RI)    upper reservoir (RS)