The invention relates to an intelligent home
system accessing to an intelligent power gird and
new energy and an energy efficiency managing method. The
system comprises a
bus and an intelligent interaction terminal, wherein the
bus is provided with an electric supply input end and a
new energy input end, the electric supply input end is serially connected with an electric supply accessing switch and an intelligent
electricity meter, the input end of the intelligent
electricity meter is accessed to an optical cable compound cable and the output end is connected to the
bus through the electric supply accessing switch; the
new energy input end is connected with corresponding new energy equipment through the corresponding new energy accessing switch; the intelligent interaction terminal comprises a
microprocessor and a
peripheral interface circuit thereof, the intelligent interaction terminal is connected with the new energy equipment through an RS485 interface and an acquisition device used for acquiring information of the intelligent
electricity meter; and the intelligent interaction terminal is in
wireless communication connection with the electric supply accessing switch and the intelligent home equipment through
wireless radio interfaces, wherein the electric supply accessing switch is provided with a corresponding
wireless interface. The intelligent home
system realizes dual-direction interaction of users and a
power grid, can receive various kinds of information from the
power grid and preferential measures in real time through the intelligent interaction terminal of the intelligent
electricity meter, guides the users to optimize home electricity and saves cost.