This paper proposes the realization of electricity load energy supervision system, by which an electric power company can monitor the change of load voltage, current and power consumption more effectively while the customer will be able to survey the electricity usage at ease.
Then, considering the requirements of remote data transmission, a wireless sensor network prototype is also made. Meanwhile, a function of forewarning signals is also included in the development to remind the customer when the demand is abnormally increased, with which a load shedding function is hence added to shed the load when the demand is larger than the predetermined contract capacity. To assess the performance of this proposed system, several home appliances have been integrated for the evaluation test. Experimental results of the tests help confirm the feasibility and practical value of the proposed approach.