Driving geothermal innovation: from thermonets to industrial-grade systems with GEOFLEXHEATExpansion of district heating network, Riehen/ Switzerland (source: Erdwaerme Riehen/ geothermie-schweiz.ch)Carlo Cariaga 23 Sep 2025The GEOFLEXHEAT project aims to bridge the gap between existing geothermal district heating solutions and the growing need for large-scale high-density systems. This model showcases how geothermal heating can be embedded in urban planning, reducing emissions and creating energy resilience at a neighbourhood scale. High-Temperature Heat Pump (HTHP) Raises geothermal output to >110 °C, meeting industrial steam demand—expanding geothermal beyond residential DH. This approach ensures geothermal energy progresses from niche residential heating to a central pillar of Europe’s renewable energy mix. In this ecosystem, GEOFLEXHEAT is the missing link: it connects grassroots innovation and market intelligence with high-impact technological advances, positioning Europe as a global leader in geothermal energy.