Hrvatska elektroprivreda (HEP) is intensifying its efforts in the realm of geothermal energy, aiming to integrate newly identified geothermal resources into its existing district heating systems. This initiative is a response to recent exploration findings that reveal substantial geothermal potential in areas surrounding Velika Gorica, Osijek, Vinkovci, and Zaprešić.
The significance of these locations is heightened by their current reliance on gas and fuel oil through HEP’s heating subsidiary. The exploration results present an opportunity for a comprehensive shift towards low-carbon heating solutions in these urban centers. Plans are even being discussed to create interconnected geothermal systems that could link Velika Gorica with the capital, Zagreb, thereby forming a cohesive heating network powered by renewable energy.
Local governments have shown considerable enthusiasm for this project, with municipal leaders expressing their willingness to collaborate with HEP on incorporating geothermal energy into their centralized heating frameworks. This cooperation indicates a growing trend of institutional support for sustainable energy initiatives within the region.
Transitioning from discovery to practical implementation will necessitate substantial investments and infrastructure enhancements. Initial steps include drilling reinjection wells essential for sustainable geothermal operations. Following this, the construction of heat pipelines to connect geothermal sources with existing heating systems will be critical, alongside addressing land ownership complexities and updating spatial planning regulations—each presenting significant implementation challenges. The preliminary financial outlay for these preparatory activities and well drilling is projected at approximately 30 million euros, with partial funding anticipated from European Union sources.
Experts underscore the economic benefits associated with geothermal heating, citing European case studies that suggest potential reductions in heating costs ranging from 50% to 70% compared to conventional systems. This cost efficiency is particularly pertinent amid current fluctuations in global energy markets, underscoring the importance of energy stability. Officials involved in the exploration phase have characterized the findings as highly promising, noting that the likelihood of successfully identifying geothermal resources at specific sites is generally low. Thus, these confirmed discoveries hold significant implications for Croatia’s broader energy transition ambitions.
