In this paper, we propose a Smart Energy Management System (SEMS) which functions as a control using a motion
sensor and setting time of power usage to reduce power consumption. The SEMS not only supplies power as the way
the common power strips do but also controls sockets ofthe SEMS using ZigBee wireless communication. A test bed
for experiment consists of a motion sensor, the SEMS and three appliances which are connected to the SEMS and the
experiment was conducted for five days to measure the power consumption of three appliances with regard to both
functions. The experimental result shows that the powerconsumption of the SEMS with two functions is
considerably reduced when compared with the power consumption of the common power strip.