NOVELTY - The apparatus (100) has several electrode plates provided within an electrolyte cavity (112) formed in the cell housing (111). The anodes and cathodes of the electrode plates are partially submersed within the electrolyte (113). Two connectors (116) are connected to an electrical power supply for allowing an electrical current to be supplied to the electrolyte. A cell outlet (114) is arranged in fluid communication with the electrolyte cavity, and is coupled to a heat recovery module. The cell inlet is provided for supplying electrolyte to the electrolyte cavity.    USE - Apparatus for performing electrolysis of water for generation of hydrogen and heat, for use with power generation system such as photovoltaic solar power system, wind turbine and wave power system.    ADVANTAGE - The electrolysis cell can be easily removed from the heat recovery module, thus the electrodes can be easily replaced or reconditioned. The electrolysis of water to be performed at temperatures of 100 degrees C to 200 degrees C, thus the efficiency of the electrolysis process can be vastly increased, and the higher heating of the fluid passing through the heat recovery module can be allowed. The cell inlet and cell outlet are arranged on opposing sides of the electrolyte cavity facing edges of the electrode plates, so that the electrolyte flowing into the cavity is flowed directly between the electrode plates. Thus the flow of electrolyte between the electrode plates can be maintained to prevent build-up of contaminants such as corrosion and other products on the electrode surfaces, and the efficiency of electrolysis process can be improved. Two connectors are electrically connected to the electrode plates, and the cathode is positioned between two anodes of electrolyte plates, thus the efficiency of the output of the cell in electrolysis product can be improved.    DESCRIPTION OF DRAWING(S) - The drawings show the schematic views of the electrolysis apparatus.    Apparatus for performing electrolysis and generating heat with electrolysis cell (100)    Cell housing (111)    Electrolyte cavity (112)    Electrolyte (113)    Cell outlet (114)    Connector (116)