• Sunday August 7,2022

Alternative energies

We explain to you what are the so-called alternative energies and why they are important. Advantages and disadvantages of these clean energies.

They are more convenient for the global ecosystem and climate change problems.
  1. What are the alternative energies?

It is called alternative energy or, more properly, alternative energy sources, techniques and procedures for obtaining energy different from the traditional ones, consisting of the burning of fossil fuels (oil, coal, natural gas, etc.). In general, this term is associated with the search for less polluting energy but with the same 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 electricity sources However, its environmental consequences, coupled with the instability of raw material markets, impose the need for cleaner, safer and more economical 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 what forms of obtaining energy are the actual alternative, since often the term is used to refer to the forms of Ecological energy or energ a green .

It can serve you: Clean energy

  1. Examples of alternative energies

In broad strokes the forms of alternative energy would be:

    • Tidal power . Take advantage of tidal movements and ocean currents.
    • Wind power . Take advantage of the mechanical force of the wind to mobilize generating turbines.
    • Nuclear energy It obtains energy through controlled atomic reactions that release a lot of heat and allow electricity to be produced.
    • Solar energy Take advantage of and store the energy coming from everyday solar radiation.
    • Geothermal energy Take advantage of natural heat from the deep layers of the Earth's subsoil.
    • Hydroelectric power It generates electricity from the use of the gravitational potential energy of large bodies of water such as waterfalls or rivers.
    • Biofuels Take advantage of organic waste material to generate alcohols and gasolines of medium performance and lower cost and environmental damage than petroleum products.
  1. Importance of alternative energy

The high demand for energy makes alternative energies increasingly necessary.

The field of alternative energy development 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.

  1. Advantages of alternative energies

The main advantages of alternative energies are:

  • Less environmental impact . Although these are not ecological or green ways of obtaining energy, since a hydroelectric plant has a considerable ecological impact, they are more convenient for the global ecosystem and climate change problems than the burning of hydrocarbons, since they do not generate as many greenhouse gases .
  • Lower cost of raw material . By not depending on the extraction of oil, coal or natural gas, these energies keep their costs stable, in many cases limiting them to the initial installation and subsequent maintenance.
  1. Disadvantages of alternative energy

Despite their advantages, these energies have a weak side:

  • Less efficiency They are not usually as powerful as traditional methods are, which requires greater facilities, saving campaigns and an entire energy culture contrary to the waste to which we are accustomed culturally.
  • Greater risks Although they do not harm the global ecosystem so much, these technologies can cause a lot of damage if something goes wrong: the loss of radioactive material from nuclear power plants, the microsisms generated by geota energy Thermal or the fall of the power generation of wind power plants when the wind decreases or the climate changes, are issues that must be taken into account.
  1. Types of alternative energy

Alternative energy sources can be classified into two types:

  • Renewable or sustainable energy . Those that use materials or take advantage of inexhaustible natural resources or that nature replenishes constantly, without risk of depleting them in the immediate future. In some cases they even take advantage of organic waste materials, such as biomass. Some are more or less ecological, but do not usually have a very high yield.
  • Nuclear energy . All forms of nuclear energy, both physics and fusion (not yet developed), which while taking advantage of non-renewable resources (such as uranium for physics; although physics will take advantage of hydrogen, which is so abundant in the universe that it is virtually eternal), will enter environmental hazards such as the generation of highly toxic radioactive waste.

Continue with: Exploitation of natural resources.

Interesting Articles

Law of the Offer

Law of the Offer

We explain what the offer law is and what the supply curve is for. In addition, the law of demand and what factors determine it. The law of supply justifies the quantity of a product in the market. What is the law of supply? It is known as the law of the offer, an economic and commercial principle that justifies the quantity available in the market of a particular product (that is, its offer), based on its requirement

Spermatogenesis

Spermatogenesis

We explain what spermatogenesis is and the phases in which this process is divided. In addition, what is azoospermia and oogenesis? Spermatogenesis takes place in the male sex glands. What is spermatogenesis? It is called a spermatogenesis , or spermatocytogenesis , the process of generation or production of sperm , which takes place inside the male sex glands (test Circles), specifically in the seminiferous tubes, coiled ducts of about 30 to 60 cm

Olympic Games

Olympic Games

We explain to you what the olympic games are and what is their origin and history. In addition, we list all the Olympic disciplines. The Olympics date back to Greek antiquity (around the 8th century BC). What are the Olympic Games? The Olympic Games (Olympic Games) (or also the Olympic Games ) are the largest international sporting event in the world , in which athletes representing virtually all of the competitors compete

Xenophobia

Xenophobia

We explain what xenophobia is, what are its causes and examples. In addition, its relationship with racism and discrimination. The origin of the xenophobia could be assumed at the beginning of human civilization. What is xenophobia? It is called `` xenophobia '' to fear, contempt or hatred of people who come from a nation or a culture different from their own , that is, foreigners, including their cultural manifestations, their language or anything that can Associate with the foreign

Mortality

Mortality

We explain what mortality is, what is the mortality rate and what is birth. In addition, infant morbidity and mortality. It is known that human mortality is higher in men than in women. What is mortality? Human beings are mortal, that is, we are going to die, and therefore we have a particular relationship with mortality

Refr.

Refr.

We explain to you what a saying is and some short sayings spread in the Spanish language. In addition, some popular sayings. Some sayings offer a solution to deal with dilemmas or complicated moments. What is a refrain? A saying is a saying or phrase that expresses a teaching or moral , often formulated with a rhyme or some other literary figure