TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Method: The conversion of the current into the metal, comprises an electrochemical reaction of a metal ion obtained from a solution, with at least one electron obtained from the current, to obtain a neutral metal. The production of the metal is carried out in an acid, a salt solution, a molten salt, a mixture of molten salts or an organic- or ionic electrolytic fluid. The current is converted into metallic zinc, aluminum, lithium, beryllium, calcium, sodium, potassium, titanium, magnesium, iron or lead. The metal is deposited in a trough filled with an electrolyte and having several cathodes. The material of the cathode corresponds to the deposited material, where the cathode is removed with the deposited material from the trough, when the storage capacity of the trough is exhausted, and the totality of the cathode and the deposited material is used as a fuel for generating the electrical energy. The deposited material is mechanically removed from the cathode at predetermined intervals, when the material of the cathode does not correspond to the deposited material. The conversion of the current into the metal is carried at the location of electricity generation. The metal production is carried out in standardized troughs, preferably containers. The metal is transported as a piece material or in granular form. The produced metal is liquefied in a liquid suspension, and the obtained liquefied metal is pumped or transported for transporting to the location of energy generation. The step (c) is carried out in a fuel cell. The generation of the electrical energy is carried out centrally or at a local load. The heat obtained during the generation of the electrical energy, is used for generating heat. The method produces hydrogen from the metal by adding a reagent. The container with the metal consumed during the energy conversion, or sludge obtained by the consumption of the metal, is transported to the location of electrolysis for producing the metal by electrolysis process. EXAMPLE - No suitable example given.