What is geothermal heat?

Geothermal heat is heat that is removed from the earth’s surface to heat houses and other buildings in a sustainable way.

Geothermal heat, also called geothermic energy, comes from the earth’s core and flows up to the earth’s crust. The temperature at the core is extremely hot: some 2,000 to 10,000 degrees Celsius. The closer it gets to the earth’s crust, the lower the temperature. This heat is converted into energy. The 6 kilometres nearest to the surface of the earth’s crust contains energy that is the equivalent of 50,000 times the energy contained in all of the world’s oil and gas reserves.

What makes geothermal heat sustainable?
Sustainable energy is clean energy that never runs out. Generating geothermal energy has little or no damaging effect on the environment. As well as this the supply of energy in the earth’s crust is practically inexhaustible. That is why Geothermal Heat is sustainable energy.

What are the advantages?

• it is reliable: it is available all year round, day and night.
• it is sustainable: it is clean energy that never runs out.
• it spares the environment and climate.
• it can be combined with other energy sources.
• it lowers CO₂ emissions: 5,000 metric tons less CO₂ is released per year, which can be compared to the emissions from 2,300 cars.
• there is an enormous saving of natural gas – up to 7 million m3 of natural gas per year.