Method for the overall optimization of the operation of distributed storage devices in an electrical power supply system having distributed generators and loads

A method for overall optimization of the operation of distributed storage devices in an electrical power supply system having distributed loads, the method comprising:

• operating the distributed storage devices according to operational control parameters and/or control limits (p_r);
• wherein the operational control parameters and/or control limits (p_r), which are to be conveyed using communications technology, are determined on the operator side (O) for each of the distributed storage devices (Si) in such a way that a specific cost function is minimal for all of the distributed storage devices as a whole on a basis of locally measured variables (p_l) determined at the respective storage device and transmitted to the operator,
• wherein the operational control parameters and/or control limits (p_r), which are to be conveyed using communications technology, are transmitted from the operator side (O) to the corresponding distributed storage devices (Si) and implemented,
• wherein a service life of all of the distributed storage devices as a whole is determined in that:
• a list comprising the distributed storage devices is ordered according to their individual remaining service times,
• the storage devices having the shortest remaining service times in each case are successively removed from the list until the remaining capacity of all of the distributed storage devices as a whole or the maximum discharging/charging current of all of the distributed storage devices as a whole falls below a predefined threshold and
• the service life of all of the distributed storage devices as a whole corresponds to the service life of the storage device removed last from the list.