DEVIE AND METHOD FOR MANAGING ELECTRIC POWER BASED OF MONITORING ELECTRIC POWER USAGE ACCORDING TO TENANT COMPANY OF BUILDING

摘要

A power management device based on the monitoring of power usage by a tenant company of a building according to an embodiment of the present invention comprises a detection unit which determines that each transformer installed on a building is overloaded and detects a tenant company connected to a transformer which is determined as being overloaded among tenant companies in the building based on a look up table; a measuring unit which measures the power usage of the detected tenant company and determines the power usage priority based on the measured value of the power usage; and a notification unit which selects high ranked N number of tenant companies (N is a natural number) having highest power usage based on the determined power usage priority and transmits a power saving notification to the selected tenant companies. [Reference numerals] (210) Determine that each transformer installed on a building is overloaded; (220) Detect a tenant compay connected to the transformer which is determined as being overloaded based on a look-up table; (230) Determine power usage priority by measuring power usage of the detected tenant company; (240) Select high ranked N number of tenant companies having highest power usage based on the power usage priority; (250) Transmit power saving notification to the selected tenant companies; (AA) Start; (BB) End