Geothermal Energy

• It come from the word Geo means "earth" And thermos meansmeans "heat"


  Geothermal Energy
• Geothermal Energy

  •it is a renewable energy source

  •mostly found in plate boundaries where volcanoes are concentrated like ring of fire

  •themal energy is located under the magma
• Type of Geothermal energy

  Geothermal power plant and Geothermal heat pumps
• It is a way toto use the the heat from deep inside the earth to produce steam to generate electricity


  Geothermal power plant
• It is a way to use the heat coming from the close to the earth surface to heat water or provide heat for building


  Geothermal heat pump
• Build in an area that has a lot of hot spring, geyser, or volcanic activity.
• It does not require the burning of any fossil fuel
• Steps in geothermal power plant

  •hot water is pumped from underground through a well under high pressure

  •when water reaches the surface, the drop in pressure causes the water to turn into steam

  •the steam spins a turbine, which is connected to a generator that produce electricity

  •cooling tower cools down the steam and condenses back to the water

  •the cooled water is pumped back into the earth to begin the process again
• •most common type

  •they work by pipping hot steam from underground reservoir directly into turbines from geothermal reservoir, which power the generator to provide electricity. 


  Dry steam power plant
• After using the steam, where does it go

  Through injection well
• Flash Steam Power Plant


  •they pump hot water at a high pressure from below the earth into a flash tank on the surface

  •the flash type is at much lower temperature causing the liquid to quickly flash into steam. The steam produceproduced power the turbine.
• The Philippines ranked the second in the production of Geothermal energy
• 41.4% is demand through geothermal energy, 28% coal, 11.4% hydro, 15% by natural gas, . 1% by wind solar and biofuel
• Geothermal power plant in the Philippines

  •Tiwi, Albay

  •Kidapawan (North Cotobato)

  •Calaca, Laguna

  •Tongonan, Leyte

  •Bago City, Negros Occidental

  •Valencia, Negros Occidental

  •Bacon, Sorsogon

  •Cebu-Panay-Negros