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ENERGY - Coggle Diagram

- - - - How an electric power plant works
        
        turbine-alternator system.
        
        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.
    - - Electncity cannot be stored; therefore, it must
        be transported to consumption centres This transport involves
        several processes:
        
        Increasing the voltage to 220 000 V or
        400000 V to prevent signifcant energy loss, due to the Joule
        effect.
        
        Transporting it by high voltage cables
        attached to towers.
        
        Decreasing the voltage at the electricity
        substations to 3-30 kV.
        
        Distribution to homes, offices, industrries and
        public facilities. During this stage, the voltage is reduced to 230-
        400V.
- - - - An environmental study must also assess both the economic and social consequences of the project in the area, to decide whether or not to go ahead with the plan.
      - Environmental impacts
        
        Extraction of natural resources
        
        Fuel transport
        
        WASTE TREATMENT
        
        To reduce the waste generated by thermal
        power plants, as well as their effects, several measures can be taken.
        
        Isntall special filters on the pipes at the power
        plant to capture some of the gas pollutants.
        
        Use coal with a low sulphur content, to reduce
        acid rain.
        
        Maintain and increase the size of large
        forested areas, since they absorb carbon dioxide.
        
        Waste from nuclear power plants is stored in
        drums with thick sides that do not let the nuclear radiation escape. These are then
        stored in ocean trenches and underground.
        
        Some solutions
        
        Energy diversification
        
        Energy savings
        
        Efficiency
        
        Electricity generation
        
        Final energy use