At GeoZS, we are carefully monitoring and assessing the environmental impact of geothermal energy use and developing methodologies to more accurately predict their cumulative impact on the environment. We are working to expand the use of shallow GHP and higher temperature geothermal sources to replace the use of fossil fuels in heating and cooling as far as possible. We are working to integrate and transfer scientific knowledge into applied projects to test innovative solutions.
With our experience, credibility and knowledge, we are at the heart of the comprehensive assessment of the potential and optimal use of the geological energy potential in Slovenia. We are working towards making GeoZS an undisputed expert authority and a central expert and advisory service for key decision-makers and investors in the selection of geothermal energy sources. We are focused on developing a long-term national strategic vision for a green energy transition and the use of carbon-free resources.
Strategic objectives
1. Developing of new methods for geothermal measurements, potential assessment and evaluation of the impact of geothermal energy (GTE) use.
2. Co-creating the green energy transition and decarbonisation strategy based on geological energy potential and renewable energy sources.
3. Becoming a demonstration model for the implementation of environmentally and climate resilient measures.
Activities
To achieve our strategic objectives, we are implementing the following activities:
- We are developing methods to perform geothermal measurements to reduce uncertainties in the estimation of geothermal potential in a 4D environment.
- Strengthening research to identifying and reducing the environmental impact of geoenergy use and planning sustainable use.
- We are actively involved in the preparation of strategic documents on research into the potential and use of geoenergy for new uses or substitution from existing (fossil) energy sources.
- We advise municipalities and industry on planning the use of GTEs in energy infrastructure installations.
- We carry out research related to the siting, construction and operation of underground and above-ground energy facilities.
Important links
Geothermal maps
Guidelines for drilling for shallow geothermal energy (up to 300 m)
Guidelines for use of shallow geothermal energy in cold storage facilities - GeoCOOL FOOD
Guidelines for development of direct use of thermal water and geothermal power plants - INFO-GEOTHERMAL
Shallow geothermal potential maps for Ljubljana - GeoPLASMA-CE
Maps for assessing shallow geothermal potential on the Sustainable Energy Portal
Borehole viewer
3D geothermal model of NE Slovenia, deep boreholes and seismic profiles
Soil and groundwater temperatures, quantitative and qualitative status - Environmental Atlas and Water Atlas
Annual budget of geothermal energy use in Slovenia - Mineralne surovine Bulletin
Links to specific GeoZS geothermal projects before 2023
European Geological Data Portal EGDI
Projects
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Read the latest news
New data published at the Slovenian Borehole viewer portal
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Modelling the hydrological functioning of karst aquifer systems in Slovenia using geomorphological features and the random forest algorithm
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Effect of groundwater flow on the final temperature of closed geothermal systems used for cooling
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Call for Awards and Honorary Degrees of the Geological Survey of Slovenia 2024-2025
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Introducing the PhD theses of our young researchers - Aleša Uršič Arko
Tectonic features of the contact between the Adriatic foreland and the Dinarides in SW Slovenia
Events
International Scientific Conference SEGH 2026 in Ljubljana, 13-17 July 2026
The 41st International Scientific Conference on Environmental Geochemistry and Health - SEGH2026 will take place in Ljubljana from 13 to 17 July 2026. The conference will address a wide range of current global challenges in the field of environmental geochemistry and health. The main conference themes are: inorganic and organic pollutants in the geosphere, geochemistry...
8th Regional Scientific Meeting on Quaternary Geology, Čatež ob Savi, 4-6 November 2026
The 8th Regional Scientific Meeting for Quaternary Geology - 8th RMQG will take place in Čatež ob Sava from 4 to 6 November 2026. The theme of the meeting, "Early Quaternary Records", will be the focus of invited lectures and excursions.The event is an excellent opportunity to exchange knowledge, ideas and to strengthen cooperation between researchers....
Presentation of the results of the Evaluation of Research Networks (ERA-NET) - A new approach and presentation of GeoERA good practices, 20 November 2025
The Slovenian Society of Evaluators (SDE) and GeoZS cordially invite you to a presentation of the results of the ERA-NET evaluation and a good practice example. The event will take place on Thursday, 20 November at 14:00 at GeoZS, Dimičeva ulica 14, Ljubljana, in the 6th floor meeting room. The European...






