- What is Geothermal Energy? - Where can we find Geothermal Energy? - How do we get the Geothermal Energy? - How does Geothermal Energy work? - Advantages and Disadvantages

What is Geothermal Energy?

Sources of Geothermal Energy 70% comes from the decay of radioactive nuclei with long half lives imbedded in the earth Some energy is from residual heat left over from the earth formation The rest originates from meteorite impacts

Where can we find Geothermal Energy?

Where can we find Geothermal Energy worldwide?

Hot Dry Rock

- 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

How do we get the geothermal energy? Hot water reservoirs e.g. under southern Germany or Iceland for space heating but not for electricity Natural steam reservoirs a hole dug in the ground that causes the steam to come to the surface

Advantages of Geothermal Energy Easy to install, to serve and to maintain The System works about 25 and 50 years They do heating and cooling The systems are very environmentallyfriendly Heating of the housing space and also water preperation

Disadvantages of Geothermal Energy It is not available and profitable everywhere The efficency of Geothermal Energy depends extremly on the installed system The installation of the searchers can cause earthquakes in sensible regions The aquisition costs are very high  it is profitable in the long term