The advantages of geothermal energy



Your installation captures the heat from the subsoil. This energy, unlike gas and oil, is available free and in an unlimited quantity.
Geothermal energy offers a free and inexhaustible source of energy

The electricity consumption required to run the installation is residual. If your electricity is produced with solar panels or wind turbines, for example, the running cost is almost zero, which makes an additional saving.
The running costs linked to geothermal energy are very low or even non-existent

Simulations show that a return on investment can already be noted after 7 to 8 years, just on heating the building. If you add the benefits of "geocooling" (providing air conditioning for the building by circulating the cold water from the subsoil), this return on investment is even quicker, since the significant costs incurred through classic air conditioning disappear.
The return on investment is rapid


Since the end of the last century, scientists and politicians have become aware of the need to drastically reduce greenhouse gas emissions (CO2). Oil, gas and wood, traditionally used to heat our buildings, are the source of a large volume of fine particles which end up in our atmosphere.

Unlike these traditional energy sources, geothermal installations emit very few or no fine particles or CO2, according to the source of energy used to produce the electricity.
Geothermal energy is an efficient alternative to positively contribute to air quality

Geothermal energy enables the pollution risks linked to the extraction, processing and transport of hydrocarbons to be avoided.

Moreover, there is no more need to have an area to store the fuel. With geothermal energy, there is no longer a risk of polluting the subsoil with oil or the risk of a gas explosion.
Geothermal energy presents distinctly fewer risks to the environment


Equipped with a geothermal installation, buildings have a reliable and modern system for heating and air conditioning. The different techniques (open or closed geothermal system) allow it to be compatible with any type of land or surface area.
Geothermal energy enables the installation of modern, reliable systems adapted to every situation

A geothermal installation can meet all the heating or air conditioning needs of a building with at least ¾ of the energy coming from calories extracted from the subsoil and only ¼ input from external energy. This external energy itself being able to be produced by solar panels or wind turbines, the energy cost of buildings with a geothermal installation can be greatly reduced, even to zero in certain cases.
Geothermal energy neutralises the energy bill for heating or air conditioning of buildings

Legislation, which is expected to increase over the next few years, requires the reporting of energy performances of a property when it is sold or rented. These performances are classified by category from the highest (category A) to the lowest (G). The more a building gathers points on the different sources of energy evaluated, the greater its chances of entering into a higher category. Geothermal systems allow extra points to be gained compared with other traditional heating and air conditioning systems.
Geothermal energy increases the value of your property and is added value for your property investments

Some answers about geothermal energy

What is geothermal energy?

As Wikipedia very correctly reports, "Geothermal, from the Greek geo (earth) and thermos (heat) is a word which relates to both the science which studies the internal thermal phenomena of the terrestrial sphere, and the technology which seeks to use it. By extension, it means the geothermal energy coming from the Earth's energy which is converted into heat.

What is the geothermal gradient?

n our countries, at a depth of 8 metres, the temperature of the subsoil is +/- 12°C. It is important to note that, at this depth, the temperature of the subsoil is totally independent of the climatic variations on the surface. Unlike other renewable energies such as wind or photovoltaic, geothermal energy is therefore available throughout the year without a break.

From this depth, the temperature increases on average by 3°C every 100 metres. The temperature at the centre of the earth is estimated to be 4,000°C.
The geothermal gradient expresses this variation in temperature according to the depth.

What are the qualities of this source of energy?

Geothermal energy is a sustainable, renewable, permanent source of energy (compared with intermittent sources of energy such as the sun or wind), inexhaustible and non-polluting.

GEO-GREEN sprl - Rue de Priesmont, 63 - B-1495 Marbais | Belgique

All rights reserved @ Geo-Green 2015