Energy is an important factor of life. Especially all the people, since wake up in the morning to go to bed at night, such as turn on the lights to use an activity, The use of vehicles in all times, and The use of technology in communication, such as telephone, computer, etc. We need to use the electricity throughout the day. So the energy is an important part in the daily life of everyone. If we are lack of energy, or energy. We will get life's difficulties and trouble very much.