Geothermal

Cards (3)

  • What is geothermal energy?
    The thermal energy generated and stored in the Earth. The geothermal energy of the Earth's crust originates from the original formation of the planet and the radioactive decay of materials
  • How do geothermal power stations work?
    1. in regions with volcanic activity, the ground is naturally hot
    2. so when we pump cold water down into ground, it will be heated by the hot rocks
    3. if this water is pumped back to surface, it can be used to heat our homes
    4. or evaporates into steam
    5. steam can be used to turn turbines which can drive a generator and produce electricity
  • Disadvantages of geothermal energy?
    • only be built in certain areas of the world
    • can be expensive to build