Geothermal energy is renewable and cost-effective
Geothermal energy is a sustainable choice. It is a form of renewable thermal energy stored in the ground, in rock or in water, and it can be collected with heat pumps and piping systems. It is the reason the ground is clearly warmer than the air in the winter. Geothermal heat comes mostly from the sun’s energy, whilst a smaller amount is energy generated from the breakdown of radioactive elements occurring deep within the earth. In Finland, the heat that comes from the sun’s energy only goes about 15 meters deep. This means that the heat from chambers drilled deeper into rock is chiefly geothermal energy. Geothermal heat is not a limited resource, which means you do not need to worry about it running out–use it with a clear conscience.
Geothermal heat is suitable for all types of buildings
Geothermal heat can be used as an energy source for heating water and in heat distribution systems, such as in floor heating and cooling. Geothermal heat is suited to all types of buildings, from single-family homes to large commercial and industrial buildings. The ease and affordability of use make it very popular in Finland, with ground heat pumps having been the most common choice for heating systems in new homes since the turn of the century.
Advantages of geothermal heat compared to other solutions
Geothermal heat is used as an energy source for heat regulation systems, providing a comprehensive solution for both heating and cooling. Dual-purpose devices are more efficient and easier to install than separate heating and cooling systems. Its advantage over many other solutions is that the equipment needs very little space.
Geothermal heat is also an affordable choice
Return on your investment will come quickly, despite the investment costs for geothermal heat systems being slightly higher than conventional heating and cooling equipment. This is particularly true when used with a low temperature heat distribution system, such as floor heating and cooling. In the long run, geothermal heat is more affordable than district heating in many ways. The installation price depends on the depth of the drill and the model of the geothermal heat pump, among other factors. The annual operating costs for geothermal heat in single-family homes are typically in the range of a few hundred euros.
How is geothermal heat environmentally friendly?
Uponor Geo Palix energy piles are foundation piles that are designed to leverage geothermal heat. Energy piles can cover most of the energy usage in a building. If the load is high, the system can be supplemented with geothermal chambers.
This solution is suitable for areas where the soil type necessitates the use of foundation piles and heating, and/or in areas where cooling is dependent on the time of the year. The heating system uses the energy that is stored in the earth, while the low temperature of the ground is used for cooling. In the summer, the cooling system collects the building’s excess heat back into the ground, which keeps the ground’s temperature level suitable for energy production. Energy piles are best suited to low-temperature heat distribution systems, such as floor heating and cooling systems.
A reasonable investment
Compared to traditional heating and cooling systems, energy pile investments pay for themselves in approximately 5 to 8 years. The quick return on investment stems from the system having no maintenance costs, merely the initial costs of foundation. A correctly installed energy pile system lasts for the entire life cycle of the building.
Uponor heat collection system
The PE-Xa U collection circuits scaled and designed by Uponor are embedded into the piles and connected to the manifolds installed in the floors. The collection circuit pipes are 25 x 2.3 mm in size. To minimise heat loss, an insulated connecting pipe is installed between the piles and the manifolds. Trunk lines to the heat distribution room use insulated pipes. The systems uses commonly used heat transfer materials.
In the design phase, Uponor provides an estimate of the collected energy output and delivers the system dimensions according to the actual foundation plan. In addition, Uponor delivers all the components required for installing the energy piles, including collection pipes, trunk lines, manifolds and accessories.