Renewable energy, unlike traditional energy sources such as oil, natural gas, coal, and other fossil fuels, never runs out. Even if they go, they still constitute an infinite resource that renews noticeably when compared to 20th-century norms. The most common and relevant forms of RES are listed below.

Wind Energy

Renewable Energy

While traveling through the open spaces, we certainly noticed the clusters of tall, white, modern windmills. The energy resulting from the movement of air is increasingly used and transformed into electricity. It is not profitable to put up such structures everywhere. Due to the fact that wind is generated by differences in the density of air masses, appropriate conditions are needed for the proper course of the entire process.

It is also worth paying attention to the fact that air movement can be variable. Therefore, in order to increase the efficiency of this element, wind farms are unlikely to be built in a built-up, closed area. In the old days, this renewable energy source was also appreciated. Of course, windmills were much simpler in design, but the benefit of nature was evident.

Water Energy

Also called “hydropower” is an even older source of renewable energy than that obtained from wind. People used the power of the movement of water back in deep antiquity. It was used to power simple machines used in blacksmithing, carpentry, but above all by millers. the construction of such devices was very simple, usually, they were based mainly on a metal or wooden wheel, immersed in a river or under a waterfall, the movement of which was driven by the water and thus generated energy. much greater efficiency The energy obtained from the movement of water is one of the most efficient.

Solar Energy

People have been aware of the potential of the sun’s energy for a long time. However, apart from primitive methods such as drying fruit or heating water, there was little that could be done. It is only in our era that we can use this source in a very efficient way thanks to special constructions consisting of connecting special panels with an inverter that converts solar energy into ordinary electricity – the same that flows in our sockets. These panels, known as “photovoltaic panels” or “photovoltaic cells”,  are mounted on roofs or on free parts of plots of land. Anyway, it’s best where there is no shade and the sun (even behind the clouds) can operate most of the day. 

Geothermal Energy

Another name for this renewable energy source is “geothermal energy” or “geothermal energy”. Amazing strength lies dormant under the earth’s crust. Using not very scientific language: it’s just very hot there. Fortunately, we have learned to use these potentials. Special, very advanced structures, based on appropriate heat pumps and boreholes, use a very simple physical principle. Geothermal energy has the disadvantage that it must be processed very skilfully. It is not possible to drill wells everywhere, as it would be unprofitable. For example, too rapid heat consumption may cause the rocks to cool down temporarily. Nevertheless, in the long run, it is inexhaustible and very future-oriented energy.



In a nutshell, it is a widely understood waste of organic origin, which decomposes quickly but also has energy potential. We divide the biomass into phytomass (i.e. plant-derived) and zoomase (animal origin). Most often, however, the term in question is understood to mean “products”, such as low-quality or waste wood, agricultural waste, animal excrement, seaweed, vegetable oils, and animal fats. We obtain energy from biomass most often by burning it.


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