Many sources of geothermal energy

Various technical approaches are required to be able to utilize the bedrock, groundwater or soil for energy purposes. Good knowledge of local geological conditions is crucial for choosing the solutions that are best suited for a project. A successful geothermal heating system is therefore dependent on the right expertise entering projects at an early stage to assist with good planning, relevant ground investigations and advice on how ground heating systems should be designed and operated.

NGI offers a number of services and can contribute with both ground investigations, design and consulting within open and closed ground heating systems, as well as research and development of new solutions for development projects.


NGI has relevant expertise for assessing geothermal energy:

  • site investigations and online monitoring
  • hydrogeological field methods and groundwater mapping
  • groundwater flow and heat transport
  • numerical modelling
  • design and operation of open ground heating systems that use groundwater

Research and development

NGI's research is currently focused on heat pump systems where the ground source heating system is integrated into the construction of the building. Such systems can be, for example, energy piles, energy walls and support structures that utilize adjacent soil and groundwater as an energy source.