Before we start the paper, we all have to know some basic ideas about the renewable energy so that we can have a clear idea on the energies and how we can use this energies and why these are so important! Renewable energy, often referred to as clean energy, comes from natural sources or processes that are constantly replenished. For example, sunlight or wind keep shining and blowing, even if their availability depends on time and weather (Gielen, 2019).