What is so significant about the sun energy that sets it apart from other renewable resources? The Sun is its own power source. It is in the innermost center of the sun, known as its core, that fusion reactions take place and produce huge energy that keeps the sun burning as bright as it does. Solar radiation, often called the solar resource or just sunlight, is a general term for the electromagnetic radiation emitted by the sun, the energy that comes from the sun to the Earth. The majority of the sun’s radiation reaching Earth is in the form of visible light people can see and also in the form of invisible infrared energy that people can’t see. What sets the sun’s energy apart is that it can be harnessed directly for heating (solar thermal energy), or it can be utilized to produce heat to produce electricity, or the solar energySolar energy can be directly converted into electricity. Hence, as the world confronts the urgent need for sustainable energy solutions, solar power is emerging as a leading force in the transition to clean, renewable energyRenewable energy. Futhermore, as solar technology innovations continue to emerge and the adoption rates of solar energySolar energy continue to rise, solar power is poised to play a central role in meeting global energy demands while addressing the pressing challenges of climate changeClimate change.