Solar energy is electromagnetic radiation produced by the nuclear fusion of hydrogen to helium inside the sun. It releases temperatures of around 15 million degrees Celsius. On the sun's surface, they are "only" about 6,000 degrees. The released energy hits the Earth's surface in the form of light and heat. Thus, it not only influences the weather (wind, precipitation and water cycle), but also forms the basis for the growth of plants and consequently the nutrition of all living things.

The advantages of solar energy at a glance:
• It is inexhaustible (in contrast to fossil fuels such as coal and oil) and is therefore one of the renewable or regenerative energies.
• It is clean and emission-free (no CO2, soot or fine dust).
• It is available for free.