Thursday, November 4, 2021

Renewable Energy Sources



 Renewable energy sources can be divided into two main groups: those are traditional renewable energy sources such as biomass and large hydro power plants, and "new renewable energy sources" such as solar energy, wind energy, geothermal energy, etc.
  According to collected data renewable energy sources provide about 18% of world energy, but much of the energy is produced in the traditional way, use of biomass for cooking and heating from 13 from 18%.
  From large hydro plants we receive around three percent. So when we exclude traditional renewable energy sources we can assume that the "new energy sources" produced only 2.4% of total global consumption.
  From these 3% goes to water heating, 0.8% in electricity production and 0.3% of bio fuels.
  It is believed that this share should be increased because the amount of non-renewable energy resources is rapidly dwindling, and their negative impact has significantly increased in recent decades.

  Sun delivers 15,000 times more energy than mankind can now spend, but nevertheless still a large number of people freezes and have not enough energy for their homes. Here we see that it is time to start to better exploit renewable energy sources.
  When we consider renewable energy sources their development is important for many reasons, and one of them relates to a major role in reducing carbon emissions.


    Geothermal Energy

  Geothermal energy is a form of energy that involves the use of heat inside the Earth. This type of energy can be used directly and indirectly. The use of geothermal energy can be varied for the application for the spa, to heat homes and greenhouses.




    Tidal Energy

  Tidal energy comes from the gravitational force of the Sun and the Moon. It is known that this type of energy can come from the area where is the big difference between high and low tide. The principle of operation is similar to that of a hydroelectric power plant. The main problem is stated in fickle tides and a small number of places that could be suitable for the use of this form of energy.

    Wave Energy


  Wave energy occurs in the form of transformed sun energy that creates constant winds in some areas. These winds then lead to permanent waves in some areas. Energy use in this way is not ideal. The main problem lies in the fact that this type of power should be built on the open sea, as the waves near the shore are weak. Price of this type of buildings is high, not to mention the problem of transferring the energy.

 

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