Geothermal energy

presented by

Jana Goller and

Leonie Metzner

from Wipperfürth, Germany

Contents: What is geothermal energy? Where is it in Europe and Germany? The structure of a geothermal energy plant How is it won? The earth's crust Advantages Disadvantages How is the energy used? The costs

What is geothermal energy?

It gets heaten up by the core of the earth It is used for home heating, opening a

potential for widespread exploitation It costs between 2 and 10 US cents per

kWh

Geothermal energy in Europe:

Where is geothermal energy in Germany?

How do we win geothermal energy?

Our earth has a lot of energy stored that can be extracted.

This geothermal energy has been there since the beginning of the formation of our planet.

It has been used for spacial heating and bathing since ancient Roman times.

The earth's crust

The Earth's crust is like the skin of an apple.

It is very thin in comparison to the other three layers. The crust is only about 3-5 miles (8 kilometres) long and about 25 miles (32 kilometres) thick.

The temperatures of the crust vary from air temperature on top to about 1600 degrees (870 degrees Celsius).

A geothermal energy plant:

Here is a cross-section

of a Geothermal-Energy Plant.

The advantages of geothermal energy

- The energy is renewable

- The cleanest energy

- High heat source

- No chemistry needed

- Good for the climate

The disadvantages of geothermal energy

- Not widespread source of energy

- High installation costs

- Can run out of steam

- May release harmfully gases

- Difficult to transport

Costs of geothermal energy

The costs of Geothermal energy are low depending on how you approach the use of

energy.

Geothermal energy is heat contained within the earth. This heat energy can be found almost

anywhere. As far away as remote deep wells in Indonesia and as close as the dirt in our backyards.

What is geothermal energy used for ?

Geothermal energy can be used as a heat source in small end-use applications, but the consumers have to be located close to the source of heat.

Heat from the earth can be used in many ways, from large and complex power stations to small and relatively simple pumping systems.

Thank you for listening!

We, your German team members

Jana Goller

and Leonie Metzner

would be happy to answer any questions!