Hrvatska elektroprivreda (HEP) is enhancing its focus on geothermal energy, with plans to incorporate newly identified geothermal resources into its existing district heating systems. This strategic move comes on the heels of recent exploration efforts that have unveiled substantial geothermal potential in urban areas such as Velika Gorica, Osijek, Vinkovci, and Zaprešić. These cities currently rely on traditional heating methods using gas and fuel oil, making the shift towards geothermal energy a significant step in reducing carbon emissions.
The findings not only present an opportunity for HEP to transition towards low-carbon heating solutions but also pave the way for potential inter-city connections. There are discussions about linking geothermal resources from Velika Gorica to Zagreb, creating a cohesive heating network powered by renewable energy. This interconnectivity could enhance the efficiency and reliability of heating services across these regions.
Local governments have shown a keen interest in collaborating with HEP as it moves forward with this project. Municipal leaders from the involved cities have expressed their willingness to work closely with HEP to integrate these geothermal sources into their centralized heating infrastructures. This cooperation indicates a growing trend of institutional support for sustainable energy initiatives within Croatia.
Despite the promising prospects, the journey from exploration to implementation presents notable challenges. Initial steps will include drilling reinjection wells necessary for sustainable operation, followed by constructing heat pipelines that will connect geothermal sources to existing systems. Additionally, addressing land ownership complexities and updating spatial planning frameworks are crucial components of this development process. The preliminary costs associated with these preparatory activities and reinjection wells are projected to be around 30 million euros, with some funding anticipated from European Union resources.
Experts emphasize the economic benefits associated with geothermal heating, citing European experiences that suggest potential reductions in heating costs by 50% to 70% compared to current systems. Given the current volatility in global energy markets, such cost efficiency is increasingly vital. Officials involved in the exploration phase regard these discoveries as particularly significant for Croatia’s broader energy transition ambitions, especially considering the generally low probability of locating viable geothermal resources during initial explorations.
