GCSE Physics (AQA)

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Wave Energy

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Energy National and global energy resources

Wave Energy

2:30 More Renewable Energy Resources
Spec 4.1.3
Previous Tidal Energy Next Geothermal Energy
  • Winds along the ocean surface cause the formation of water waves.
  • Water gains energy from wind through kinetic energy transfer due to friction between air and water.
  • Waves carry large amounts of kinetic energy, which can be harnessed.
  • Wave energy is the kinetic energy carried by water waves traveling along the ocean surface.
  • Buoys floating on the ocean surface can convert wave energy to electricity.
  • Buoys can be connected or float individually, typically constructed near shores with strong waves.
  • Buoys gain kinetic energy from waves, moving up and down with wave peaks and troughs.
  • This motion transfers kinetic energy to generators, producing electric currents.
  • Generators can be located on the ocean bottom or within the buoy.
  • Advantages of wave energy: clean, renewable, no emissions, produces large amounts of energy.
  • Disadvantages: still under development, potential to disrupt shipping, weather-dependent.
  • Wave energy technology is recent but has great potential.
  • Basic understanding of wave energy and its advantages/disadvantages is important.

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