Drill.
Heating.
Air conditioning.

Closed geothermal energy works by means of probes installed in the ground in a closed circuit. A heat-transfer fluid (water or a mixture of water and mono-propylene glycol) circulates through these probes to capture the natural heat in the ground and transmit it to a heat pump, without interacting with the groundwater. This system is particularly suited to small-scale residential and commercial projects, as it can be installed in small areas and works in almost any type of soil.

Open geothermal energy uses groundwater directly. The water is pumped up via a collection borehole, its thermal energy extracted and used by a heat pump, then reinjected into the ground via a dedicated borehole. This system offers high energy efficiency and is suitable for large buildings, industrial infrastructure and district heating networks. The main condition for feasibility is the presence of a groundwater table with a sufficient flow rate.

Vertical geothermal energy, as we propose it, is based on deep boreholes in which geothermal probes are installed in a closed circuit. This system captures heat from underground, where the temperature remains stable and relatively higher than at the surface throughout the year. It is particularly suitable for customers who want a highly energy-efficient, cost-effective system. This type of system can be installed on any type of land, even small plots.

Horizontal geothermal heating uses shallow, buried collectors spread horizontally over a large area. This system captures the heat present in the first layers of the ground, influenced by seasonal climatic variations. This solution requires a sufficiently large plot of land, as the collectors need to be spread over a large area to provide the necessary energy.

Yes, geothermal energy is not just about heating. It can also be used to cool a building in summer, thanks to passive cooling. This process relies on the stable temperature of the ground, which is naturally lower than the ambient air temperature in summer. The heat inside the building is captured and transferred to the ground, lowering the indoor temperature without the need for an energy-intensive air-conditioning system. This method of cooling is particularly interesting because it offers optimum thermal comfort while reducing energy consumption.

The choice between closed and open geothermal systems depends on a number of criteria, such as the size of your building, your energy needs, the characteristics of your plot of land and whether you have access to groundwater. We always carry out a feasibility study beforehand to offer you the most appropriate geothermal solution.

The efficiency of a geothermal system is measured using the Coefficient of Performance (COP), which indicates the amount of heat produced in relation to the energy consumed to produce it. A geothermal system generally has a COP of between 4 and 6, which means that for every 1 kWh of electricity consumed, it produces between 4 and 6 kWh of heat.

This efficiency is much higher than that of air-to-air heat pumps or gas boilers, because the ground temperature remains stable throughout the year, avoiding variations in performance.

No, geothermal energy is a very low-maintenance solution. Heat pumps, on the other hand, need regular servicing, about once a year, to check that they are working properly and to optimise their performance.

Geothermal energy is more efficient, economical and environmentally friendly than most other traditional heating systems, such as oil and gas boilers or even aerothermal heat pumps. It uses a renewable and inexhaustible source of energy, reducing your carbon footprint while guaranteeing constant thermal comfort and lower energy bills.

With minimal maintenance, durable equipment and silent operation, geothermal energy is a high-performance, economical and environmentally-friendly solution for heating and cooling your building to optimum effect.