FIELD: electrical engineering.
SUBSTANCE: according to the method of battery energy storage: obtaining the first group of spare backup batteries of the first type; connecting said first group of standby backup batteries to second group of main backup batteries of second type to increase total amount of available power, which is stored in batteries; and connecting said first group of batteries and said second group of batteries to one or more inverters connected to electrical network, so that DC power from first group of batteries and second group of batteries is converted to AC power available for electric network. At that, required value of available energy capacity is determined, based on historical profiles of actual use, determining first value of energy capacity, which should correspond to the second group of batteries, and determine the second value of the energy capacity, which must correspond to the first group of batteries, wherein the second value is determined such that the total amount of available energy is equal to said required value of available energy capacity, which in fact was not required in the past, or is unlikely to be required.
EFFECT: high efficiency of allocating and managing resources of a backup energy storage system.
18 cl, 8 dwg
