2.2

• Increase in Energy demand

  • Population increase
  • Urbanisation and industrialisation increase
  • Improvements of living standards and expectations
• Solar Power

  Use of photovoltic cells that produce a small electric charge when exposed to light
• Tidal Power

  The use of the natural rise and fall of water to turn a turbine and power a generator, generating electricity. Water is held back by a tital barrage wich is a small dam that releases water back through the turbine
• Wave Power

  Uses the differences in water level caused by the wind to turn a turbine and power a generator
• Hydro Electric Power

  The use of a dam wich is positioned high up to allow for a higher potential for HEP. Water is released from a reservoir and flows through towards a turbine turning it, powering a generator generating electricity.
• Biofuel usage

  Produce a massive ammount of energy during combustion that is used to heat water to create steam wich turns a turbine and powers a generator generating electricity.
• Nuclear Power

  Uranium wich is a highly radioactive material releases huge ammounts of energy when nucclear fission occurs. The energy of this reaction is used to heat water and turn it into water vapour turning a turbine and powering a generator
• Geothermal Power

  Cold water is poured in between hot rock, causing the water to become hot. The hot water is brought up to the surface and using a heat exchanger it heats up the second supply of water wich turns into water vapour and turns a turbine, powering a generator
• Wind Power

  Turbines have blades that turn as a result of wind. They also have large gear boxes and breaks that can slow down the rotor and maximise the rotation. As the turbine rotates, a generator is powered generating electricity.
• Fossil Fuels advantages

  • Large supply
  • Provide job opportunities
  • The technology is well known
• Fossil fuels disadvantages

  • Co2 and toxic gases are released when burnt
  • Damages local areas
  • Limited supply
• Biofuels advantages

  • Renewable
  • Growing more plants uses more Co2
  • Plentiful supply
• Biofuels disadvantage

  • Carbon dioxide and other gases are released when burnt
  • Lots of land needed for agriculture
  • REmoval of natural ecosystems causing a loss in biodiversity
• Nuclear power advantages

  • Does not produce co2
  • Large ammount of energy is produced with little fuel
  • Provides job opportunities
• Nuclear power disadvantages

  • Risk of radiation
  • Radiocative waste cannot be recycled
  • Limited supply
• Geothermal Power Advantages

  • Does not produce CO2
  • Unlimited Supply
• Geothermal power disadvantages

  • Expensive to install
  • Only certain areas have suitable conditions
• Wind Power Advantages

  • Does not produce carbon dioxide
  • Renewable
• Wind power disadvantages


  • Only certain locations are suitable
  • Generation of energy is weather dependent
  • Visual impact
• Solar Power Advantages

  • Does not produce CO2
• Solar Power Disadvantages

  • Weather dependent
• Tidal Power Advantages

  • Not not produce CO2
  • Not weather dependant
• Tidal Power Disadvantages

  • Limited to specific areas
  • Impact on tourism and costal areas
• Wave Power Advantages

  • Does not produce Co2
  • Renewable
• Wave Power disadvantages

  • Limited to specific areas
  • Not very efficient as of now
• HEP Advantages

  • Does not produce CO2
  • Water can be reused
• HEP Disadvantages

  • Dams impact natural flow of water
  • Villages and ecosystems can be destroyed