Why are solar panels useful?
We know that solar energy is obtained from sunlight, and solar panels are large panels designed to trap sunlight. The panels are positioned to face the Sun, usually on south facing walls and roofs, and they convert light energy into electricity.
A large number of solar panels that are connected together can produce electricity on a commercial scale. In some solar plants, concentric rings of mirrors reflect the sunlight to a central boiler where water is heated and turned into steam. The steam then powers turbines that are used to generate electricity.
Solar panels can be used for water heating, space heating, space cooling, and to process heat generation. Did you know that the sunlight that shines on the Earth in just one hour could meet the world's energy demands for an entire year?
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