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Energy (5- Environmental impact (. Environmental impacts (Electricity…

- - - - Large hydroelectric power plants require water reservoirs covering large areas, which protoundly change the natural cycle of rivers flood large land areas and destroy ecosystems, in addition to increasing the risk of accidents
      - Conventional thermal power plants can cause numerous problems and environmental hazards.
        
        N uclear thermal power plants are accompanied by the risk of
        nuclear accidents and the problem of nuclear waste, some of which remain dangerous for thousands of years
- - - - Conventional
      - Non-conventional
    - - pollutants
      - Clean or non-polluting
    - - Primary
      - Secondary
    - - Renewable
      - Non-Renewable
- - - - gravity
      - pump
- - - - Transporting it by high voltage cable~ attached to towers
      - Transporting it by high voltage cable~ attached to towers
      - Increasing the voltage to 220 000 V or 400 000 V to prevent
        significant energy loss, due to the Joule effect
      - Distnbution to homes, offices, industnes and public facilities During this stage, the voltage is reduced to 230-400 V.
  - - - The turbine converts mechanical energy into the rotating movement of a shaft
      - An alternator has a fixed part, called a stator, and a moving part,
        called a rotor, connected to the turbine shaft
- - - - These plants use the heat found at deep levels in the earth
      - Geothermal energy may be used directly and indirectly
    - - Biomass consists of all organic compounds that are produced through natural processes They may come from the following sources.
        
        Specific crops, such as sunflowers and sugar beet.
        
        Waste from agri-food industries.
        
        Forestry and agricultural waste
    - - These plants use the energy from the sun
        
        Photo-thermal power plant
        
        Photovoltaic power plant
    - - The mechanical energy from the waves
      - The energy from the ocean's thermal gradient
      - The mechanical energy from the tides.
    - - These power plants use the kinetic energy of the wind to move the blades of a rotor at the top of a tower, this is referred to as the wind turbine.