As part of the international project Danube GeoHeCo, a specialized “Train the Trainer” workshop was held on June 13, 2025, in Eisenstadt (Austria), with the goal of enhancing the technical and strategic capacities of project partners. The workshop provided practical training in the use of the ITtool software, designed for the planning and analysis of shallow geothermal systems, as well as a discussion on cross-border cooperation and challenges in raising awareness about geothermal energy.

The workshop began with a presentation on progress within the Transnational Action Plan (TAP), focusing on the working group for awareness-raising. Participants discussed key challenges and proposed possible solutions, with the session led by representatives from CROST Nonprofit Ltd. (Hungary) and LEA Pomurje (Slovenia).

Experts from the Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb (UNIZG-RGNF), presented the key input parameters for operating ITtool, including thermogeological data, the geometry of borehole heat exchangers (BHE), rheological characteristics, thermal response tests (TRT), and heating/cooling load data. They also explained the structure, functionality, and modeling logic of the tool, which is based on Python code.

Participants then engaged in practical sessions using real-world examples — from single to multiple boreholes — including sensitivity parameter analyses. In the second part of the workshop, each partner organization worked on pilot locations, supported by UNIZG-RGNF experts, applying the tool in accordance with local conditions.

The workshop successfully achieved its goal — it transferred practical knowledge and strengthened the partners’ capacities in the design of shallow geothermal systems. Through interactive sessions and collective learning, project teams gained skills and confidence in applying geothermal models in real-life conditions.

This activity directly contributes to the goals of the Danube GeoHeCo project by fostering regional cooperation and accelerating the transition toward sustainable energy solutions in the Danube region.