The intense heat and light produced by the sun is a great source of renewable energy. From powering small devices such as calculators to running cars and power plants, solar energy is a natural, environment-friendly resource with numerous applications.
How solar energy works
Simply put, solar energy is harnessing light and heat from the sun and making it work for human processes. An obvious use of solar energy is natural lighting. This may be as straightforward as designing buildings to make maximum use of daylight, without having to resort to artificial forms of illumination. Solar energy can also be used to purify water and make it suitable for drinking, by simply exposing the water to sunlight for a few hours. Further advances in technology have made it possible to collect and store solar energy using specially designed thermal collectors, reflectors, and cells. Thermal collectors may be used to provide heating to buildings. Reflectors can be arranged to form solar cookers, using the heat reflected to cook and process food. Solar cells contain substances that release electrons when light shines on them, thus converting sunlight into electrical energy. Solar cells, or panels, can be used to provide electricity to homes.
Benefits of using solar energy
The most obvious benefit is its constant supply—as long as the sun shines, solar energy will never run out. The electricity produced by solar energy can also be stored for future use, so you need not worry about solar energy running out once the sun sets. The many uses of solar energy provide low cost solutions to many vital processes, such as those mentioned above. All that we need to pay for is the equipment used to harness solar energy. Sunlight—which is what powers these processes—is free. Using solar energy is also greatly helpful to the environment. The use of solar energy produces little pollution, and does not contribute to greenhouse gases. Also, if more people use solar energy, more governments will be interested in further developing it as a viable source of electricity. This will reduce the worldwide dependence on fossil fuels, leading to even less destruction of our environment.
The sun has long been worshipped as a giver of life. By using technology to make sunlight work for us, we can further develop ways for solar energy to efficiently and cleanly power our world.
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