Nowadays, the world is facing against a lot of emergency issues such as global warming, energy fuel lack, water shortage, climate change, food crisis and so on. Many scientists spend their whole lives in order to find out good solutions to the world’s problems. Even some of the scientists died while discovering the explanations because they were stressful of work or they were being poisoned by toxic chemicals. All people are respectful to scientists because of their enormous contributions to humankind. When I decide to pursue my major-electrical engineering, I also aim at figuring out an efficient way to reduce the gas emission. I think about how to make use of the solar energy in the production of solar panel on rooftop, electricity-generating devices. Truthfully, the solar energy is very important to the world. The fossil fuels cannot remain sufficient; therefore, oil and gas supplies will go down and cannot bring enough for demand. The solar energy will be the best option for a long term. Solar panel on the rooftop will focus the sun’s rays to heat fluids that produce power so that it can help engines act. Solar energy makes the productivity higher. However, the use of solar energy in production is still low due to the manufacturing high cost. In the future, if all people tend to use more solar energy, the manufacturing cost will decrease so that it can fit to the majority. Furthermore, the storing of solar energy is also considered deeply. If people constantly use an energy source without storing for later use, that source will become disappear. Those are the things I am going to do in the future to make people have a better life.