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ENERGY - Coggle Diagram

- - - - The ir advantages are that they contaminate much less than conventional power plants, they use renewable sources and they educe the energy dependence of petroleum and natural gas.
    - - The main disadvantage of these power plants is that they generate
        much less energy, since they use diffuse energy sources
  - - - heliostats
      - the heat generated by solar radiation produces steam that is used to move the rotor in the generator.
    - - areas of photovoltaic panels
      - There are also isolated power plants that are very small in size
- - - - Use coal with a low sulphur content, to reduce acid rain
      - Install special filters on the pipes at the power plant to capture some of the gas pollutants
      - Maintain and increase the size of large forested areas, since they absorb carbon dioxide.
  - - - essential to reduce the consumption of ag forms of energy — without seriously affecting quality of life
      - adoption of more environmentaly friendly habits
    - - use of renewable energy sources
        is fundamental
      - objective is to produce a large
        part of our electricity through
        alternative power plants
    - - noticeably reduce the energy we consume
      - energy effiaency policies increase effiaency of everyday appliances and devices
  - - - Conventional thermal power plants can cause numerous problems
        and environmental hazards.
      - Large hydroelectric power plants require water reservoirs covenng arge areas, which protoundly change the natural cycle of overs, lood large land areas and destroy ecosystems, in addition to increasing the risk of accidents
      - Nuclear thermal power plants are accompanied by risk of nuclear accidents and the problem of nuclear waste, some of which remam dangerous for thousands of years
- - - - During the first cycle, a gas turbine is used that includes a compressor.
      - Air is mixed with the gas and is burnt, which generates electricity
        in the turbine-alternator system.
      - the combustion gases are transported to a boiler, where they transfer their energy to the water during the second cycle.
      - This type of power plant performs better than those with only one cycle.
  - - - water used follows the course of a river and will not be reused
    - - water descends into a reservoir located at a lower height, then pumped to a higher reservoir to reuse it
- - - - primary
      - secondary
    - - use in each country
      - environmental impact
    - - non-renewable
      - renewable
    - - clean or non-polluting
      - Pollutants