Abstract: Two or more metallurgical sub-plants, a separate network for the distribution of electrical energy, at least one power generating plant with at least one gas turbine for the provision of electrical energy in the separate network, and a control device are included in a metallurgical plant. The sub-plants draw at least 80%, in particular at least 90%, of the electrical power required for their operation from the at least one power generating plant via the separate network. The control device controls provision of electrical power for a first sub-plant at the expense of at least one other of the two or more sub-plants. The two or more sub-plants include at least one steel works with at least one electric arc furnace and at least one sub-plant for a metallurgical process arranged upstream or downstream of the steel works.

Abstract: A method for the uninterrupted operation of a gas liquefaction system is provided, wherein the operation is continuously monitored for at least those users of the refrigerant compressor component which represent a two-digit percentage of the total load on the refrigerant compressor component. A total instantaneously available negative load reserve is calculated, and at least one predetermined turbine is switched off when the load reserve reachable via a frequency regulation of the one or more refrigerant compressors is lower than the energy demand of the largest of the refrigerant compressors and either a refrigerant compressor fails or a speed of frequency change for the power supply network for the gas liquefaction system exceeds a present threshold.