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The Future of Geothermal Energy

by GuestPoster - June 25th, 2011.
Filed under: Guest Posts. Tagged as: , , , .

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The amount of energy in the form of heat in the earth is huge. We can use this energy to generate electricity or directly as heat. This energy resource consists mainly of radioactive decay and sun energy. Earth is insulating, absorbing energy from the sun and does a relatively good job at keeping it in place. Temperatures are therefore more stable in the earth as opposed to the surface.

We could harness this energy with basic principles of converting heat to electricity with a turbine or we could use the heat directly.

Many interesting parallels can be drawn to the pros and cons of wind energy, as this is also a promising relatively new green technology.


Advantages of Geothermal Energy

There are many advantages of using geothermal energy. Probably the biggest is the enormous resources of energy stored in the earth. They will literally last billions of years.

Energy is cheap once the build costs of such a system/power plant has been is paid.

The environmental crisis we are facing needs green forms of energy to be solved. This is energy not polluting the environment. Geothermal energy fits in this category

The delivered energy from geothermal heat systems is stable. This is due to the fact that the source heat of this energy is not fluctuating. Since the earth acts as an insulator the temperatures stays about the same, regardless of the temperatures above the surface.


When producing energy there is usually an amount of waste involved in the process. This is not the case with geothermal energy. There is no fuel to transport and the system is usually a closed loop of pipes transporting heated water.


Disadvantages of Geothermal Energy

There are not many to mention. The most important is the investment cost. For most people considering installing such a system for their homes need to consider carefully. There could potentially be years before the money is earned back. On the other side the energy gained is low cost.

Geothermal energy is long term oriented. The initial cost is too big for most people. Currently systems harnessing heat energy is more common in industry facilities. When the balance between geothermal energy advantages and disadvantages improves in the future, chances are it will contribute with large amounts of green energy.






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