Patent ID: 8577513

Claim:
A power system comprising a power transmitting apparatus and a power receiving apparatus, wherein the power transmitting apparatus includes: a power generating unit generating power using renewable energy; a first power measuring unit measuring a power amount of power generated by the power generating unit in a specified period; and a power transmitting unit transmitting the power generated by the power generating unit in the specified period and information on the power amount measured by the first power measuring unit to the power receiving apparatus, and the power receiving apparatus includes: a power receiving unit receiving the power transmitted from the power transmitting apparatus and receiving the information on the power amount transmitted from the power transmitting apparatus; a second power measuring unit measuring a power amount of the power received by the power receiving unit in the specified period; a determining unit comparing the information on the power amount received by the power receiving unit and information on the power amount measured by the second power measuring unit and determining whether the two power amounts match; and a power reception control unit operable when the determining unit has determined that the two power amounts do not match, to stop the power receiving unit from receiving the power and from receiving the information.