The importance of alternative energy has considered as one resource type which important to daily life. But with the amount of the world’s population also have been high increasing which caused to the energy consumption is increasing accordingly. And another important thing that occurred from the entry of technology which it will bring about a complete transformation of the energy model. On the one hand, it is efforts to reduce its environmental impact and creating energy security likes renewable energy. But the impact and preparedness for change should also be taken into account by energy trends in 2020. Furthermore, society will be turn to focus on renewable energy and green energy which production and using energy can help reduce fuel consumption and greenhouse gas emissions. An innovation has been developed in various fields which help technological energy developed. In other countries, they have turned to creating alternative energy for their own country to reduce costs and reduce pollution emissions into the air.
Alternative energy types can be divided into 5 main categories; wind energy, solar energy, hydro energy, and biomass and electric energy from waste and solar energy. Currently, Thailand has begun used these renewable energy more and more.