The sun is the source of all life on earth.
Thanks to the sun, there is light, warmth and food on the earth. Many kinds of energy on earth originate from and through solar radiation.
Since the sun doesn't have the same strength at all places and all times, the earth is warmed up unequally. This causes wind which can be converted into electricity by means of wind turbines.
By evaporation we get precipitation which is carried downstream by rivers. The current of this water can provide the energy needed to generate electricity in a hydro-electric power station.
Also fossil fuels, such as coal, brown coal, oil and natural gas have their beginnings in the sun's energy, the energy that was needed for the evolution of the microscopic forms of life of animal or vegetable origin.
The reserves of these fossil fuels, however, are limited. We must use them economically. Not only not to mortgage the future of the coming generations, but also for economic and ecological reasons.
Solar energy?
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