Deep geothermal heat is here



With the GM2000 drilling rig, it is now possible to drill a geothermal well to a depth of more than two kilometers – quickly, replicably and at competitive costs.

More energy from a smaller land area

An energy field consisting of traditional 300-meter-deep geothermal wells requires a lot of land, and is therefore not suitable for densely built-up areas, large sites, or the needs of district heating networks.

One 2000 meters deep geothermal well produces more than 60 times more energy than a traditional shallow well. It only needs 1% of the land area required to build an energy field. A deep geothermal well provides heat a long time without losing its production capacity.

In deep wells, the losses in the coaxial heat exchange system are small and the heat transfer from the soil to the geothermal system is efficient. Only water is used in the system.

Deep well is also an energy storage

By changing the flow direction in the well, the geothermal well can be used for cooling properties and storing energy in the bedrock. This makes it possible to utilize the waste heat produced in the summer when the energy consumption increases in the winter.

Efficient and reliable drilling

The GM2000 drilling rig enables efficient and repeatable drilling to a depth of two kilometers in hard granite. The measurement and control technology used in soil investigation, has now been brought to well drilling, making it possible to control the process even in deep wells.

Find out more here.

Clean energy

Geothermal energy is renewable energy and is available continuously regardless of weather conditions. It produces carbon dioxide emissions up to 150–300 kg/MWh* less annually compared to oil or district heating. The CO2 emission reduction of one deep geothermal well is 257,000 kg per year, which corresponds to the emission reduction potential of more than 10,000 solar panels**.

Geothermal wells meet the criteria of the EU taxonomy and are a socially responsible alternative, as they do not have landscape or noise effects on their surroundings.

Self-sufficiency in energy production

A deep geothermal well can be an independent energy source. Well can also be a part of district heating network reducing network’s carbon dioxide emissions and improving the energy efficiency of the system. On a larger scale, the utilization of deep geothermal wells increases the energy self-sufficiency of the whole country.

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*Statistics Finland 2023
** Calculated with the average emission factor of Finnish electricity production