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Description
The potential of geothermal energy in the City of Križevci area arises from its location in the area of the former Pannonian Basin, geological structure and favorable geothermal gradient. In the area City of Križevci there is a geothermal well Križevčanka-1, the existence of which has been determined by previous research, and whose size, reservoir characteristics and its energy power should be confirmed through additional research. The aim of the project is to use the geothermal potential for energy purposes to heat existing publicly owned facilities located in the immediate vicinity of the existing well, as well for potential commercial utilization.
Summary of project results
The project "Preparation of technical documentation for the use of geothermal energy in the area of the City of Križevci" addressed significant challenges related to the utilization of geothermal energy in Croatia. The Križevci area had untapped geothermal potential, particularly through the Križevčanka-1 well, which required further exploration to assess its suitability for energy production. Key issues included the lack of technical documentation necessary for the development of geothermal energy systems and insufficient integration of geothermal resources into the energy infrastructure of public and agricultural facilities. Additionally, there was a need to align the use of geothermal energy with Croatia''s climate and energy goals by reducing reliance on non-renewable energy sources. The project aimed to create a comprehensive framework for using geothermal energy to heat public buildings, greenhouses, and drying facilities, which would contribute to energy efficiency and sustainability in the region.
The project implemented a series of activities to achieve its goals. It began with preparatory actions, including the exchange of experiences and the application of best practices in geothermal energy utilization. The core activity was the development of technical documentation, which included an idea project for the Križevčanka-2 exploratory well, an environmental impact assessment study, and detailed engineering plans. Additionally, the project integrated geothermal energy with other renewable energy sources to ensure a holistic approach. Project management and administrative efforts supported these technical activities, while promotional initiatives raised public awareness about geothermal energy. Workshops and a final conference were held to disseminate results, engage stakeholders, and highlight the potential of geothermal energy in the region.
The project produced tangible results, directly benefiting the City of Križevci and its partners, including Komunalno poduzeće Križevci and Efla h.f. It developed the necessary technical documentation to utilize the geothermal potential of the Križevčanka-1 well and prepare for the Križevčanka-2 exploratory well. This documentation forms the foundation for future investments in geothermal energy, such as district heating systems for public facilities, greenhouses, and drying operations. The project also indirectly benefited the local community by laying the groundwork for energy cost reductions, improved energy security, and environmental sustainability. Public facilities like schools, sports halls, and educational institutions stand to gain from the project''s outcomes, as do agricultural enterprises through potential geothermal heating for greenhouses and other uses. It is estimated that the geothermal energy will produce 22,150.00 MWh annually, significantly contributing to the region’s energy sustainability, with an expectance to reduce annual CO2 emissions by 11,404.80 tons, aligning with climate goals at both the national and EU levels. The project also laid the foundation for installing a geothermal energy production capacity of 3.85 MW, marking a significant milestone in the region’s renewable energy efforts. These activities and results not only provided the technical and administrative basis for the exploitation of geothermal energy in Križevci but also built local capacity and awareness, ensuring a sustainable and impactful transition toward renewable energy solutions.
Summary of bilateral results
The donor partner from Iceland, Efla h.f., brought valuable expertise and experience in geothermal energy utilization, which significantly enhanced the project''s outcomes. The partnership provided technical insights and best practices from Iceland, a global leader in geothermal energy, enabling the project team to approach the exploration and documentation phases with a more advanced understanding. The donor partner''s involvement also facilitated a study trip to Iceland, where Croatian participants observed operational geothermal energy systems and learned about their integration into local communities. This knowledge exchange broadened the project''s scope and strengthened its technical and strategic framework. The bilateral cooperation led to several key results. Croatian participants gained firsthand experience and practical knowledge during a study trip to Iceland, which included workshops and field visits to geothermal facilities. The donor partner contributed to the development of technical documentation by sharing best practices and ensuring alignment with international standards. This cooperation not only improved the quality of the project outputs but also fostered stronger ties between Croatian and Icelandic stakeholders, paving the way for future collaborations in renewable energy. The collaboration has proven mutually beneficial, and both parties have expressed interest in exploring additional projects, particularly in the implementation phase of geothermal energy systems in Križevci. Future cooperation could include joint applications for funding, further knowledge exchange, and the development of advanced geothermal energy projects that align with Croatia’s and Iceland’s renewable energy goals.