The sun, as it shines upon the earth, emits through its rays what is referred to as radiant energy. This energy is made up of electromagnetic waves. Thanks to modern science and technology, man has found ways of capturing this radiant energy, harness it through suitable means and convert it into various other useful forms of energy, principally heat and electricity. This is known as solar power. Solar power is a fascinating subject to study. This article will throw light on a number of the essential aspects of solar power.