Abstract: A regulating system that in the event of a deviation from the nominal grid frequency provides a balancing power for an electrical power grid that is operated at a nominal grid frequency, wherein the regulating system comprises: multiple energy storage system units that are connected by an inverter to the electrical power grid and comprise an energy storage device; and a control center that divides into sub-frequency intervals a frequency deviation interval that lies between a minimum grid frequency and a maximum grid frequency about the nominal grid frequency and, in dependence upon the states of charge of the energy storage devices allocates different energy storage system units, ESS, to each sub-frequency interval so as to form an ESS cluster for the respective sub-frequency interval.

Abstract: A regulating system that in the event of a deviation from the nominal grid frequency provides a balancing power for an electrical power grid that is operated at a nominal grid frequency, wherein the regulating system comprises: multiple energy storage system units that are connected by an inverter to the electrical power grid and comprise an energy storage device; and a control centre that divides into sub-frequency intervals a frequency deviation interval that lies between a minimum grid frequency and a maximum grid frequency about the nominal grid frequency and, in dependence upon the states of charge of the energy storage devices allocates different energy storage system units, ESS, to each sub-frequency interval so as to form an ESS cluster for the respective sub-frequency interval.