Advantages and disadvantages of renewable energies

Benefits of renewable energies

• The first benefit of renewable energy becomes clear when you look at the disasters of recent years. Nuclear power plant accidents and radiation, oil spills and marine pollution, coal burning and the rise in global CO₂Value with the greenhouse effect.
• Here it is first clear that with z. B. Wind power or solar systems no disaster in this sense can occur. There are also no or only minor and therefore negligible emissions, which in the long term counteracts a greenhouse effect.
• It also becomes clear that oil and coal as common energy sources may be in a few 100 years will be exploited, whereas the sun will still provide warmth in ten-digit years can.
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• The same advantages naturally also apply to z. B. Wind or water energy. However, there are other forms of renewable energy such as B. the geothermal energy.
• Finally, it has been shown that renewable energies, due to climate effects that take place all over the world, such as B. Solar radiation, or wind movement, can be produced anywhere. This creates independence from both political and economic crises and a possible end to fossil fuels.


Wind energy - disadvantages

Germany ranks third worldwide in the use of wind energy behind ...

Disadvantages of this energy source

• However, one of the disadvantages compared to perishable resources is already showing that renewable energies initially produce less power and are very expensive to purchase. Also, the construction of the necessary modules is mostly with precisely those harmful environmental impacts, e.g. B. highly toxic substances, which are sought to be avoided.
• In terms of performance, it should also be mentioned that this is not only lower, but can also be erratic. In the case of the sun, e.g. B. a cloudy day is enough to noticeably reduce energy production in one place. In the case of wind, however, a calm would be enough to cause problems.
• Intervening in natural cycles can also lead to damage to the environment in the long term. This is especially the case with hydropower plants, which on the one hand damming water and thus withdraw it from the environment and on the other hand pose a danger to fish. In the long term, precisely because of the turbines in such a hydropower plant, no animal life is possible in the regions concerned.
• In the context of the disadvantages, this leads in the long term to the fact that the energy needs of the broader population cannot yet be met with renewable energies. There is also still a lack of effective technology to e.g. B. To transport electricity generated from wind power in the North Sea over long distances to the south or to use the solar energy gained by the strengthening of the sun for later use (e. B. in the event of a cold or dark period) to save effectively.

The conclusion for the author of this article is that renewable energies are in part more environmentally friendly and more usable in the long term, at the moment However, there is a lack of technology to use them effectively (inexpensively, across the board and without losses in the context of energy generation and transport) can.