Renewable sources of energy

• Renewable energy resource


  One that is being or can be replenished as it's used
• Renewable energy resources


  • Wind power
  • Solar power
  • Hydroelectric power
  • Tidal power
  • Biofuels
  • Geothermal
• Advantages of renewable energy resources

  • They'll never run out
  • They do not add any carbon dioxide to the atmosphere
• Disadvantages of renewable energy resources


  • Wind power and solar power are not reliable
  • Habitats are destroyed when dams are built for hydroelectric power
  • Tidal power may be harmful to wildlife
  • Wave power is still small-scale and experimental
  • Geothermal energy is not used much in the UK
  • Most energy use in the UK is for transport which is not easily replaced by renewable electricity
• Biofuels


  Produced from plant materials, carbon neutral as the growing plant took in carbon dioxide
• Biofuels can be used to power vehicles such as cars and buses
• Using land to grow crops for biofuel could push up the price of food