FIELD: physics.
SUBSTANCE: present invention is intended to provide a system which can motivate energy saving by comparison with others. Device comprises means of obtaining identification information of group, which represents a general population, to obtain identification information of group, which represents a general population, to obtain as comparative purposes a plurality of groups identified by group identification information for identifying a group consisting of a plurality of portions of user identification information as a comparative target; and the energy saving promotion estimation results obtaining unit includes the group energy saving promotion assessment result obtaining means to obtain the energy consumption results of the group identified by the group identification information, representing a general population obtained by means of obtaining identification information of a group representing a general population, as a result of energy saving advancement evaluation together with group identification information based on stored energy saving estimation rule.
EFFECT: technical result consists in providing assessment of results of energy saving promotion.
13 cl, 39 dwg
