Abstract: A power information display device includes: a power information acquisition unit which acquires information relating to a remaining capacity of a storage battery, and information relating to power consumption of devices that use power of the storage battery; and a display unit which displays usable time of the storage battery when a plurality of devices are operating, and usable time when at least one of the plurality of devices has stopped.

Abstract: A management system for managing measurement information on power consumption in at least one electrical appliance which is associated with at least one meter includes a first storage module configured to store measurement information transmitted from each of the at least one meter associated with the at least one electrical appliance, on power consumption in the at least one electrical appliance, in correspondence with the at least one meter. The management system also includes a second storage module configured to store history information on association between each of the at least one meter and the at least one electrical appliance.

Abstract: A power information display device includes: a power information acquisition unit which acquires information relating to a remaining capacity of a storage battery, and information relating to power consumption of devices that use power of the storage battery; and a display unit which displays usable time of the storage battery when a plurality of devices are operating, and usable time when at least one of the plurality of devices has stopped.

Abstract: A power management device includes an obtaining portion for obtaining information on power consumption from a plurality of electrical appliances, a display portion, and a controller for causing the display portion to display information on power consumption in the plurality of electrical appliances obtained through the obtaining portion. In each electrical appliance, a plurality of pieces of attribute information are set in advance in association, the controller carries out grouping of the plurality of electrical appliances in a plurality of layers based on the plurality of pieces of attribute information, and for each group categorized through grouping into the plurality of layers, the controller causes information on power consumption in an electrical appliance belonging to the group to be displayed.