Three geothermal deep wells to be drilled in Košice, Slovakia

The city of Košice in eastern Slovakia is initiating a geothermal development project with the drilling of three production wells to support its district heating network. Each well is expected to reach depths of around 3,000 to 4,000 meters to access sufficient thermal gradients for effective heat extraction.

This effort forms part of a broader plan to decarbonize Košice’s heating supply by integrating renewable thermal energy and reducing reliance on fossil fuels in the local heating grid. The wells are being designed to produce thermal energy for heat distribution to residential, commercial, and municipal customers via an upgraded district heating infrastructure.

The timeline anticipates that drilling will start in 2026 following final approvals and contractor selection.