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Electricity

Published on Nov 18, 2015

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PRESENTATION OUTLINE

ELECTRICITY

CALLUM BETHELL 9W1

HOW IS IT GENERATED

  • Fossil fuels burnt, turning chemical energy to heat energy
  • This heats water, which turns to high pressure steam
  • Steam spins turbines, moving the generator
  • Electricity goes through transformers to produce the right voltage
  • Electricity sent into pylons, and transferred to plug sockets

ADVANTAGES OF BURNING FOSSIL FUELS

  • Efficient and consistent
  • Produce a large amount of energy
  • Stable, as fossil fuels are produced of Carbon and Hydrogen molecules
  • Fossil fuels are effective, with high calorific values
  • Fossil fuel systems are not reliant on weather, whereas kinetic systems are

DISADVANTAGES

  • Fossil fuels, although common, will eventually run out
  • Environmental damage from gases produced in burning
  • Causes health issues for humans
  • Rising prices, as fossil fuels will be a rare commodity
  • Fossil fuels are non-renewable

KINETIC ENERGY GENERATION

  • Uses energy from renewable resources to spin turbines and power generator
  • Wind turbines use energy from the wind to turn generators
  • Hydro-electric turbines use water from streams and rivers to turn generators
  • Solar panels harvest light energy, converting it into electricity

KINETIC ENERGY ADVANTAGES

  • Using renewable resources for power
  • Reduction in carbon emissions, as no chemical reaction takes place
  • Kinetic energy is one of the world's most common resources
  • Using natural resources
  • Can generate energy in remote areas

KINETIC ENERGY DISADVANTAGES

  • Kinetic energy is hard to control
  • Heavily reliant on weather- environment vital to energy supply
  • Hard to have sufficient energy to overcome friction
  • In peak production, it is expensive to store energy
  • Inefficient in comparison to fossil fuel energy

NUCLEAR POWER

  • Similar to how fossil fuels make power
  • Uranium atoms split in fission, to heat water into steam
  • High pressurised steam used to move turbine
  • Turbine powers generator, much like with fossil fuels

NUCLEAR POWER ADVANTAGES

  • Cleaner energy than burning fossil fuels
  • Technology for generation requires low amounts of development
  • High amounts of energy in a single powerplant
  • Nuclear energy is potentially sustainable
  • Extremely efficient in terms of resources for energy

NUCLEAR POWER DISADVANTAGES

  • Radioactive material that needs to be disposed of
  • Faults can lead to nuclear meltdowns
  • High cost of maintenance
  • Uranium is an extremely rare resource
  • Poisonous to humans, should waste be accidentally released