The Importance and Necessities of Optimization and Decrease in the Intensity of Energy Consumption

In human societies, energy has a significant role, and it has been used in different ways in any phase of human history. The statistics show that the dependence of the world on nonrenewable resources will not be declined in the future years. This situation has motivated industrial countries to adopt optimization energy consumption policy since some years ago. In general, those countries owing natural resources also have to put optimization policies in their economic and energy policies in order to achieve their own maximum utility or national interests. Therefore, the adoption those policies influencing both demand and supply sides of energy is a non-deniable reality.