This invention enables Electric Vehicle (EV) charging requirements to be supplied by electric power available off-peak without increasing demand charges. It does this by continually measuring primary loads and enabling EV charging to utilize only that powe...

The present specification relates to an apparatus and a method for transmitting or receiving data in a wireless power transmission system. The present specification discloses a wireless power reception device comprising: a power pickup circuit configured t...

A power management system comprises a plurality of HEMSs 10 and a CEMS 40. The CEMS 40 transmits, to each HEMS 10, a notification request for requesting a notification of an amount of power that can be reduced from power currently consumed by a load connec...