Amount of energy which are emitted by the sun radiation. As we know that sunlight is a part of electromagnetic radiation transmitted by the sun in the form of infrared, visible and ultraviolet rays (light). This is one of the useful source which we are technically using as an useful source of energy. Our solar panel completely work on this radiation only to generate electricity.
Solar Radiation is one of the direct source or energy which we are using to storing and transmitting in different form as per the requirement, we have lot of devices which converts solar radiation as an useful source of energy. e.g: solar cell