About GTD

What is geothermal energy? 

Geothermal energy is heat from deep strata. Deep in the subsoil, in porous sand- and stonelayers, in various places in The Netherlands, hot (salt) water is stored. The deeper into the earth, the warmer the water gets. 

With every kilometre of depth, the temperature rises by about 31˚C. This heat can be used, among other things, to heat buildings. The hot water, of about 75 degrees Celsius, is pumped upwards via a 2,2 kilometre deep well located in Delft. 

The heat from the ground water is transferred via heat exchangers to a closed pipe-system (heat network) containing fresh water. This is used to heat the buildings. The groundwater cools down to about 50˚C and is returned to the layer via a second well. This well is at a distance of one and a half kilometres from the first well. 

See further information: www.allesoveraardwarmte.nl 

Why geothermal?

By 2030 The Netherlands wants to have cut its CO2 emissions in halve compared to 1990. This means that by 2030 a total of 1.5 million existing homes must be heated through the use of sustainable energy. To realise a sustainable energy supply it is necessary that residents and companies use less energy and furthermore utilise more sustainable sources for energy, heating and cooling. 

Geothermal energy offers sustainable, renewable heat. Geothermal energy is a heat source that releases hardly any CO2, which is why this source of energy contributes to making the Dutch energy system more sustainable. It is a sustainable and reliable alternative to natural gas. This geothermal project contributes to achieving our climate objectives. 

Consortium

The partners in the project: TU Delft, Hydreco Geomec BV, Energie Beheer Nederland BV and Shell are developing and realizing a high-quality geothermal installation on the TU Delft campus. The management, exploitation and acquisition of sustainable energy go hand in hand with the simultaneous implementation of a scientific program as an integral part of the project. 




Hydreco Geomec is a developer and producer of geothermal energy. We have been doing this for more than 10 years, with a lot of passion and a clear mission. We want to play a major role in the energy transition. Hydreco Geomec believes that the heat from our own earth will contribute significantly to the transition to sustainable energy. That is why we are fully committed to making the necessary improvement and acceleration of this technology. So that we leave a healthy earth for the next generations. Hydreco Geomec is a subsidiary of ENGIE. 




As a university, TU Delft is the driving force behind the scientific research program of Geothermie Delft. Moreover, TU Delft is the land owner and the first user of geothermal energy. By connecting scientific research and innovation to a working geothermal source, we get unique research opportunities. The proximity of this working resource offers enormous advantages for research and education. With the insights we gain, we can help other geothermal projects in the Netherlands and beyond. By using geothermal energy and sharing new insights, we make an important contribution to the climate objectives of TU Delft itself and those of Delft and the Netherlands. 





EBN is a company active in the energy sector, whose shares are 100% owned by the Dutch state. For 60 years, EBN has been using knowledge, expertise and strength to make an active and significant contribution to our future sustainable energy system. We are committed to the energy transition and turn social ambitions into reality. Energizing the transition. For more information about EBN, go to www.ebn.nl 




Shell wants to play a role in the energy transition. Shell sees good opportunities in the Netherlands for using geothermal energy to make the heat supply more sustainable. Shell has knowledge and expertise of the subsurface, the extraction of energy and the realization of large projects. With geothermal projects such as in Delft, Shell Geothermal wants to contribute to the Dutch heat transition. For more information, visit www.shell.nl  


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