The most important factor in life is energy that is called life essence. The crisis of energy has made the countries in the world make important decisions recently. One of the vital energies in human life is Electricity, which is now produced from two ways: national grid and distributed generation. Traditionally, in most of the countries in the world electricity is produced basically through central method but the latest approach to produce it, is Distributed Generation. In Iran the Ministry Of Energy (MOE) presented instruction which was encouraged by the private sections and companies in 2009 Jan. By using the analytical hierarchal process (AHP) technique both methods can be proposed based on their subcategories.