Cards (9)

  • Geothermal - Rocks under the ground are hot. Water can be pumped through these hot rocks and warmed up.
  • There are not many places where we can build geothermal power stations.
  • In Geothermal, harmful gases and minerals may occasionally come up from the ground below. These can be difficult to control.
  • Geothermal energy does not produce greenhouse gases. The energy source is free and will not run out.
  • Geothermal Power Plants in the Philippines:
    • Makban Geothermal Power Plant
    • Tiwi Geothermal Power Plant
    • Bacon-Manito (BacMan) Geothermal Power Plant
  • Geothermal is a lesser-known type of renewable energy that uses heat from the Earth's molten core.
  • Steps involved in generating geothermal energy:
    Step 1: Hot water reservoirs deep within the Earth are accessed via wells; the water rises under its own pressure.
    Step 2: As the hot water reaches the surface, pressure decreases, causing it to turn into steam.
    Step 3: The steam spins a turbine, which is connected to a generator that produces electricity.
    Step 4: Excess steam is passed through a cooling tower, where it is condensed back into water.
    Step 5: The cooled water is pumped back into the Earth through an injection well to restart the cycle.
  • Disadvantages of Geothermal
    • There are not many places where we can build geothermal power stations.
    • Harmful gases and minerals may occasionally come up from the ground below.
    • These can be difficult to control.
  • Advantages of Geothermal
    • Geothermal energy does not produce greenhouse gases.
    • The energy source is free and will not run out.