Contents I. Introduction
Nowadays, The increase in energy requirement have been observed due to increasing in technology and industrialization. Energy requirement and development level of the countries have shown parallelism. However, except for renewable energy methods, the other methods in the generation of energy cause to increase greenhouse gas and also, increase global warming. Recently, in worldwide, scientific research and studies on renewable energy sources have increased and a huge research fund has provided to researchers. It is known that the renewable energy methods contribute both country economy and environment. Also, renewable energy is able to be seen as an opportunity to reduce energy dependence for the fossil fuel exporting countries.
