Solar energy is renewable energy that comes from solar irradiance. The irradiance that reaches the Earth has been used by humankind since antiquity through a range of different ever-evolving technologies. At the present moment, both the sun’s heat and light are harnessed using captors such as photovoltaic cells, heliostats, or thermal collectors, transforming them into electric or thermal energy. Solar energy is one of the so-called renewable or clean energies, which will probably help solve most of the climatic crises facing mankind in this day and age.

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