NOVELTY - Electrical energy is stored and redistributed by using liquid phase in electrolyzer (1) and in fuel cell (1a, 9). Water produced in a fuel cell by hydrogen and oxygen reconversion step is collected in liquid phase and transferred together with the liquid phase to the electrolyzer in order to undergo electrolysis.    USE - For storage and redistribution of electrical energy.    ADVANTAGE - The method improves fuel cell efficiency and integrated control system for the apparatus.    DETAILED DESCRIPTION - Storage and redistribution of electrical energy involves:    (i) producing hydrogen and oxygen through water electrolysis in an electrolyzer operating under pressure;    (ii) collecting the hydrogen and oxygen obtained in pressurized tanks (3, 5);    (iii) reconverting into water and electrical energy hydrogen and oxygen through an electrochemical reaction in a fuel cell fed from the tanks.    In the electrolyzer and in the fuel cell a same liquid phase is used. The water produced in the fuel cell by the hydrogen and oxygen reconversion step is collected in the liquid phase and transferred together with the liquid phase to the electrolyzer in order to undergo electrolysis.    An INDEPENDENT CLAIM is included for:    (a) an apparatus for the storage and redistribution of electrical energy comprising a water electrolyzer provided with a respective liquid phase;    (b) pressurized tanks in direct fluid communication with the electrolyzer in order to directly receive from hydrogen and oxygen flows, respectively; and    (c) a fuel cell provided with a liquid phase and operating under a predetermined pressure.    The cell has anodic and cathodic compartments in direct fluid communication with the hydrogen and oxygen tanks and in direct fluid communication with the electrolyzer. The liquid phases of the electrolyzer and of the cell are identical.    DESCRIPTION OF DRAWING(S) - The figure is a schematic view of the an apparatus for storage and redistribution on electrical energy.    Electrolyzer (1)    Fuel cell (1a, 9)    Tanks (3, 5)    Heat exchanger (7, 19)