What are Geothermal Systems

Geothermal systems

Shallow Geothermal systems are a subdivision of Geothermy and in combination with the technology of geothermal heat pumps they can give us the ability to utilize the constant underground temperature.

A geothermal system can

Offer heating, cooling and domestic hot water supply with an efficiency of up to 400%.
Reach energy saving of up to 75% compared to any other system available in the market.
Have a performance that is not affected by outside conditions.
Offer heating, cooling and domestic hot water supply with an efficiency of up to 400%.
Reach energy saving of up to 75% compared to any other system available in the market.
Have a performance that is not affected by outside conditions.

The Earth offers its energy.  Let’s use it to our advantage!

Only 1,5 metres below the earth’s surface, the temperature is constant and its energy is waiting to be utilized.

How do we utilize it?

In order to utilize this energy we use geothermal heat pumps technology  which draws energy from one source (geological formations (subsoil) or underground water(aquifer)) and distributes it to the building through the chosen heating and cooling installation (eg.fan coil, radiant heating, A/C etc.).

After opting for a Geothermal heat pump for heating and cooling the next step is to select the type of geothermal system.

Geothermal systems are divided into two main categories as follows:

Open loop

In an open-loop system we take advantage of the constant temperature of underground water and the heat exchanger is installed in the building.

Water drawn from and returned to a well
Water drawn from a well and drained to the surface water
Water drawn from aquifer and drained to the surface water
Water drawn from and returned to a well
Water drawn from a well and drained to the surface water
Water drawn from aquifer and drained to the surface water

Closed loop

In a closed-loop system we take advantage of the constant temperature of geological formations and the heat exchanger is installed underground.

Horizontal geo-exchanger installation
Horizontal geo-exchanger installation
Vertical borehole heat exchanger installation
Vertical borehole heat exchanger installation
Closed pond loop heat exchanger
Closed pond loop heat exchanger

In order to select the right installation we must take under consideration:

The heating and cooling requirements of the building
The available area
The heating and cooling requirements of the building
The available area
The local geology
The economics
The local geology
The economics

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