Geothermal energy comes from the natural heat of the Earth. It can be used directly by sending water into wells to be heated and then extracting the heat for uses like heating homes. There are also different types of geothermal power plants that can generate electricity through various processes involving steam or hot water from underground reservoirs. Geothermal energy has advantages over fossil fuels as it produces less emissions and can operate continuously while being a renewable source. Some countries have begun harnessing geothermal energy significantly for electricity production.

2. Origin of Geothermal Energy

3. Different Geothermal Energy Sources

4. How Direct Use Work
Direct Sources function by sending water down
a well to be heated by the Earth’s warmth.
Then a heat pump is used to take the heat from
the underground water to the substance that
heats the house.
Then after the water it is cooled is injected
back into the Earth.

5. Direct Application of Geothermal
Energy

6. Generation of Electricity
Dry Steam
Plant
Flash Steam
Plant
Binary Cycle
Plant
Hot Dry
Rocks

7. Homegrown Energy
Geothermal Heat Pumps
Low maintenance charge
produces 4 times the energy that
they consume
Can be online 90-100% of the time
Less gaseous emissions
Good Alternative to Fossil Fuels
Electricity generated by
geothermal plants saves 83.3
million barrels of fuel each year
Direct use of geothermal energy
prevents 103.6 million barrels of
fuel each year
Positive Attributes

8. Geothermal’s Harmful Effects

9. CARBON DIOXIDE EMISSIONS
per unit of energy produced
Comparison of CO2 emissions between conventional energy systems
and geothermal plants to generate electricity.

10. Comparison of harmful emissions between a conventional oil fired
central heating system and water/water based heat pumps

11. Conclusion
• As of 2010 geothermal energy is being used in 24
countries.
• These countries currently have geothermal power
plants with a total capacity of 10.7 GW
• But 88% of it is generated in just seven countries: the
United States, the Philippines, Indonesia, Mexico,
Italy, New Zealand, and Iceland

13. Thank You!