King Mongkut's Hospital Generation of electricity from electric power plants involves several processes that causes pollution. One of them is the emission of carbon dioxide gas that is harmful to people, animals and environment, also negatively affects the Earth's atmosphere. At the same time, solar power generation converts solar energy into electricity through an environmentally friendly process. It is non-polluting and makes the electricity completely clean. Other than the initial investment that is rather expensive, in the long run, solar energy is free and can be used endlessly as it will not run out. If anyone is looking to save on electricity bills in the long run, solar energy is the answer you are looking for.