The sun shines every day across the world. We all know it gives us heat and light. But do we realize that it also provides free energy, which can be put to great use?

Solar energy is the energy received from the sun. It consists of light, heat and other forms of radiation. This energy is produced by powerful nuclear reactions happening inside the sun’s core.

In just a short time, the sun provides more energy to the earth than all the people on the planet use in an entire year. Yet, humans make use of only a small fraction of this energy. Scientists are now working on new ways to capture solar energy and use it effectively whenever it is needed.

Life on earth depends on the sun not only for heat and light but also for food. Plants use solar energy to make food through photosynthesis. Animals eat these plants and other animals feed on them in turn. This chain shows us how nature itself makes use of the sun’s energy in countless ways.

The sun’s power also drives the weather. For example, water evaporates due to the sun’s heat, later forming clouds and falling as rain. Winds blow because the sun’s rays are stronger at the equator than at the poles.

Solar energy is stored in plants, animals and fossil fuels. Trees can be burned as firewood. Crops like maize and sugarcane can be turned into biofuels. Coal, petroleum and natural gas are all ancient forms of stored solar energy.

Today, many modern methods are being used to harness the sun’s power directly. In warm regions, solar heaters are used to warm water. Flat-plate collectors heat air and water in buildings. Solar cookers and solar panels are common in many households. Most importantly, solar energy can now generate clean electricity, helping us reduce pollution and save resources.

In recent years, with the growing demand for energy and the harmful effects of fossil fuels, solar energy has gained huge importance. Many people now prefer solar-powered homes and appliances, as they save both money and the environment. In the future, as non-renewable sources run out, solar energy will surely play a major role. It is wise for us to start using and improving solar energy technology today, so that tomorrow’s world can be brighter and cleaner.