FIELD: excess electricity storage for use during peak-power demands in power systems. SUBSTANCE: storage technique involves electrolyzing hydrogen-containing compound for production and storage of hydrogen intended for use as fuel for stand-by generators placed in operation during peak-demand periods of power systems. Electrolysis is conducted with electrochemical anodic dissolution of hydrogen-substituting substance in hydrogen-containing compound involving discharge of hydrogen cations across cathode and sedimentation of chemical compound. The latter is subjected to hydrolysis to obtain original amount of hydrogen-containing compound and solid product. Aqueous solution of solid product is subjected to reverse-polarity electrolysis so as to recover original amount of substance; in the process, additional amount of hydrogen is obtained. EFFECT: augmented hydrogen production process, reduced cost, improved environmental friendliness. 3 dwg
