We explain what are called alternative energies and why they are important. Advantages and disadvantages of these clean energies.
It is called alternative energy or, more properly, alternative energy sources , the techniques and procedures for obtaining energy different from the traditional ones, consisting of the burning of fossil fuels ( oil , coal, natural gas, etc.). Usually this term is associated with the search for less polluting energies but of equal performance.
Since the Industrial Revolution of the seventeenth century, the burning of hydrocarbons remains the most used energy source in the world, given its enormous performance when it comes to manufacturing fuels for cars, aircraft or sources of electricity . However, its environmental consequences, coupled with the instability of raw material markets, impose the need for cleaner, safer and cheaper energy . Those, then, are the alternative energies.
This term appeared in the 70s , when the environmental impact of human industry and its alteration of animal ecosystems were already more than evident. There is no definitive criterion as to which forms of obtaining energy are the “alternatives” themselves, since the term is often used to refer to forms of ecological energy or “green energy”.
In broad strokes the forms of alternative energy would be:
The field of development of alternative energy is vital in the post-industrial world , given that the effects of our industrial activity over almost two centuries are already seen in the environment and generate controversy among scientific communities.
Since our demand for energy only grows and grows, as we use more technology and sophisticated devices, it is urgent to find safer and more reliable forms of energy for the future.
The main advantages of alternative energies are:
Despite their advantages, these energies have a weak side:
Alternative energy sources can be classified into two types:
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