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Storing Hydrogen and Other Energy in Bedrock

Energy can be stored in the Earth’s crust by utilising various underground energy storage solutions, such as heat and gas storage. Indeed, energy storage solutions are a rapidly developing industry. GTK offers expertise especially for the bedrock storage of renewable non-fossil fuels and energy.

A hydrogen pipeline with wind turbines and storages in the background. Picture by Adobe Stock AI.

Key benefits

Site selection dictates the storage solution

Our experts will help you select a suitable site for your energy storage solution and conduct preliminary site investigations.

Efficient utilisation of hydrogen requires storage facilities

Increasing the use of hydrogen in industry will reduce climate emissions. Moreover, enabling cost-effective storage solutions is a prerequisite for boosting the use of hydrogen.

Putting waste heat to use

Heat storage solutions enable the utilisation of various sources of waste heat.

Energy storage is an essential part of energy solutions in a carbon-neutral society

Producing hydrogen for industrial use requires a steady production flow and buffer storages that can compensate for fluctuations in production. The use of hydrogen is often restricted by the limited possibilities of above-ground storage. However, bedrock holds potential for building significantly larger storage facilities. Short-term and long-term storage of thermal energy is an essential part of energy solutions in a carbon-neutral society.

Hydrogen is steadily becoming an important energy source due to its good availability and the development of green manufacturing methods. In Finland’s crystalline bedrock, hydrogen storage needs to be implemented in lined caverns. The method is new even at the international level. A rock storage facility requires a block of rock that contains as little fractures as possible, is steady and, as verified by studies, offers suitable conditions for hydrogen storage.

GTK is involved in developing a safe solution to enable hydrogen storage.

In terms of geology, disposal site selection and the related site studies include sections that are similar to the site investigations conducted for nuclear power plants. However, when designing rock storage spaces, we also take into account the special requirements posed by the gas itself. Moreover, our experts can participate in the planning of rock monitoring for the entire active use period.

Our service can be modified according to the customer’s needs, but, as a rule, it includes the following areas

  • planning of geological and geophysical surveys
  • coordinating research throughout the project
  • geological and geophysical site investigations
  • groundwater surveys
  • interpretation and modelling, including geological 3D models, hydrogeochemistry
  • mineralogical studies
  • analysis services
  • reporting and information management
  • planning of monitoring

GTK ensures a suitable storage solution for your site

Thermal energy from different sources can be stored underground by means of, for example, energy wells or energy piles, by using groundwater, building a large-scale cavern storage facility, or by using mines as a storage facility.

GTK’s service includes all the geological studies and energy production models required to ensure a suitable plan and storage solution for any site.

Two researchers next to a rock wall measuring with a compass on a sunny summer day.

NEWS

Seasonal Storage of Thermal Energy to Improve the Sustainability of Europe’s Energy Supply

One of the biggest challenges for renewable energy is its long-term storage. A new European joint project INTERSTORES investigates the next generation of seasonal thermal energy storage systems. The aim is to improve the performance, cost-effectiveness, and reliability of thermal energy storage.

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Research scientist
+358295033835
Team Manager
+358295030089

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