POWER-STORAGE-SYSTEM CONTROL METHOD AND POWER-STORAGE-SYSTEM CONTROL APPARATUS

摘要

A power-storage-system control method includes: obtaining pieces of parameter information indicating respective states of assembled batteries (34); determining respective degradation levels of the assembled batteries (34) by using the obtained pieces of parameter information; grouping the assembled batteries (34) into a plurality of groups, based on the determined degradation levels; and executing at least one of first control and second control. In the first control, group designation is performed in first descending order of priorities defined for the groups and corresponding to the degradation levels, and the assembled batteries belonging to the designated group are charged. In the second control, group designation is performed in second descending order of priorities defined for the groups and corresponding to the degradation levels, and the assembled batteries (34) belonging to the designated group are discharged.