NOVELTY - Almost pure hydrogen is produced in electrolytic cell (1). Silicon-iron powder is added into electrolyte. Specific power required based on hydrogen demand of fuel cell (2) is provided and electrolysis is carried out. Electrolyte is heated and contacted with titanium dioxide-coated electrode. Precipitate is clarified. Supernatant and fresh caustic solution are added to electrolytic cell (1). Electrical power for externally initializing electrolysis is provided. Cells (1) and (2) are contacted with regulating element (3). Thus, self-sufficient operation of fuel cell is carried out.    USE - Self-sufficient operation of fuel cell (claimed).    ADVANTAGE - The fuel cell is operated by economical method.    DETAILED DESCRIPTION - Almost pure hydrogen without oxygen portions is produced in electrolytic cell without forming silane on basis of catalytic hydrogen electrolysis. Silicon-iron powder having grain size of 1 nm to 200 mu m and average grain size of 100 mu m is prepared and continuously or discontinuously added into electrolyte. Specific power required based on hydrogen demand of fuel cell is provided using the silicon-iron powders and electrolysis is carried out under atmospheric normal pressure at 70-100 degrees C, preferably 85-95 degrees C. The electrolyte is heated while optionally adding zeolite. The electrolyte is circulated. Electrolyte according to requirements commonly with silicon-iron powder is contacted with titanium dioxide-coated electrode. Potassium and/or sodium oxide precipitate formed due to electrochemical reaction in electrolyte at pH of 7 or more is removed and clarified in separation tank (6). Fluid loss is compensated using aqueous caustic solution including potassium hydroxide caustic solution or sodium hydroxide caustic solution having concentration of 3-5 wt.%. and optionally water. Supernatant and fresh caustic solution are added to electrolytic cell. Electrical operation energy for electrolysis power required based on demand of hydrogen for fuel cell and for base load backup from produced energy of fuel cell is uncoupled. Electrical power for externally initializing electrolysis is provided. Resultant excess electrical power from wind and/or solar energy component (12) for operation of electrolytic cell is temporarily used for storing hydrogen. The electrolytic cell and fuel cell are mutually contacted with regulating element and essential control variables and pH of the electrolyte are controlled, such that amount of power and hydrogen demand are controlled under pH of more than 7. Thus, self-sufficient operation of fuel cell is carried out. An INDEPENDENT CLAIM is included for device.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the electrolysis equipment in coupling with fuel cell. (Drawing includes non-English language text)    Electrolytic cell (1)    Fuel cell (2)    Regulating element (3)    Separation tank (6)    Solar energy component (12)