The increasing importance of energy resources in the formation and growth of economic processes as well as the need for utilization of these resources which are based on envirmental consideration and constant development of social and economical ones, to couseing identification subject and study of the factors on energy usage to be emboss. The size and structure of population is also among the factors that are important in issues related to the energy usage and it has been little studied. The electricity may be obtained to those energy which can be used to replace nearby. So this paper uses panel data of 12 provinces of the country, to analyze and compare the effect of the structure of population on the energy consumption of electricity in east (6 provinces) and west (6 provinces separately in a period, and the results show that income variant has a negative effect on electricity consumption in every provinces, however increasing of income in energy eastern provinces decreases the electricity consumption. The effects of variables such as population and urbanization has been positive in both provinces, but positive effects for the population of the eastern provinces on electricity consumption is more because of the high population of east. And the positive effect of urbanization is upper beacause of the existence of installations urban and residents consumption of electricity means