Geothermal Energy
Ground Source Heating and Cooling

Geoenergy - a Cost-effective Choice for the Future

Geoenergy is one of the smartest energy forms of the future. Energy is extracted directly from the bedrock and the surface layers of the earth and can be used for both heating and cooling of houses, properties, industrial premises, and buildings. The energy is renewable, making geoenergy a long-term and sustainable solution that aligns with future energy supply needs.

Major Benefits of Heating and Cooling in the Same System

In a geoenergy system, cooling and heating can be combined - in all types of buildings, regardless of size. Geoenergy is environmentally friendly, self-sustaining, and cost-effective. This has led to an increasing number of businesses and municipalities investing in and installing geoenergy systems in everything from private homes to large hospitals and industrial premises. In practice, geothermal wells can produce renewable energy indefinitely, resulting in significant economic savings as expenses for both heating and cooling decrease.

Why is geoenergy the best option?

When you choose a geoenergy solution, you are investing in ground-source heating while also getting cooling as a bonus - all in a system that requires minimal maintenance. For every unit of electricity used, you get at least four units of free heat in return - providing value for money in a short time.

rototec_Så fungerar ett geoenergisystem

How a Ground Source Heat Pump System Works

Geoenergy extracted with a ground source heat pump operates on the same principle as a refrigerator. The heat pump transfers heat from the bedrock or the surface layers of the earth to the hot water and heating system of the property.

A ground source heat pump system requires a geothermal well. The well can be drilled anywhere except on top of a tunnel, a cavity, or a groundwater protection area. Typically, only one or two boreholes is needed for a medium-sized house. The heat pump consists of an evaporator, an electric compressor, a condenser, an expansion valve, and a refrigerant, whose circulation in the heat pump enables the system's operation. The evaporator of the ground source heat pump is connected to the geothermal well. In the evaporator, the heat transfer fluid releases its heat to the refrigerant, which evaporates. Then, the refrigerant vapor is compressed in the compressor to the desired temperature and pressure. After the compressor, the refrigerant vapor condenses in the condenser and transfers heat to the hot water and heating distribution. From the condenser, the refrigerant goes to the expansion valve, which lowers the temperature and pressure of the refrigerant to the same level as the evaporator. A continuous and closed circulation of the refrigerant is the operating principle of the ground source heat pump.


You are just a borehole away from a more sustainable solution

Geoenergy has long been a popular energy solution for single-family homes but has now also started to grow significantly in popularity for larger properties and projects. Rototec has installed geoenergy systems in, for example, hospitals, shopping centers, and factories, and thanks to our solid experience and knowledge, our geothermal wells can function optimally. Because of this, we can guarantee the highest possible return on investment in a geoenergy system, which also meets the environmental requirements for energy consumption.

Do you want to learn more about geoenergy?

At Rototec, we are passionate about smart solutions and helping our customers towards a better energy supply. We hope you've become interested in geoenergy and all its benefits - the smartest energy source of the future.

Would you like to know more about our solutions and services for construction projects, geoenergy measurements, or our comprehensive service packages ranging from consulting on geoenergy solutions to ground analysis and installation? Or do you have other questions or want to learn more about geoenergy?

Don't hesitate to reach out to our experts at Rototec!