With the market economic system getting more and more perfect, most domestic enterprises are faced with
increasingly fierce competition in the globalizing market and a situation of profit declining. In such case, it can be only
addressed by tapping the market potential with competitive price and strengthening their cost control. For most mining
enterprises, as major energy consumers, electric power charge has become the their main production costs. For most
industrial and mining enterprises, electric power charge is the final cost item which is not controlled by these enterprises.
There is a great potential for many enterprises for their usual lower efficiency in electric power consumption due to their
management, process and technology etc. It is imperative for many enterprises to cut down their costs in electric power by
feasible technical means to improve their profit margins.