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Arverne secures Limagne geothermal lithium permit to boost supply

Arverne expands geothermal asset portfolio with new lithium exploration permit in Auvergne Arverne secures 442.7 km² PER “Bassin de Limagne” near Clermont-Ferrand French geothermal developer Arverne (Euronext: ARVEN) has been granted an exclusive research permit (Permis Exclusif de Recherches, PER) for lithium and related substances covering the “Bassin de Limagne” in Puy‑de‑Dôme, Auvergne. The five‑year permit, announced 3 September 2026, spans 442.68 km² and adds to Arverne’s growing national portfolio of PERs: the company now holds nine permits in France, three of which are focused on lithium. The award underscores Arverne’s strategy to combine geothermal heat production with geothermal lithium extraction — an integrated model the company is already deploying elsewhere in France. For the Auvergne permit, Arverne emphasizes that the Bassin de Limagne area overlaps with its existing PER for the Riom‑Clermont‑Métropole, where 3D exploration studies have previously evaluated the subsurf...

XGS Energy Thermal Reach Energy Geothermal Revolution

Revolutionizing Geothermal Energy: XGS Energy's TRE Technology



Geothermal energy, often overshadowed by its more prominent counterparts like solar and wind power, is poised to undergo a significant transformation thanks to groundbreaking technology developed by XGS Energy. In a recent announcement, XGS unveiled its innovative Thermal Reach Enhancement (TRE) concept, signaling a new era for the geothermal sector.

Traditionally, geothermal power generation involves tapping into natural heat reservoirs beneath the Earth's surface by drilling wells and extracting hot water or steam to drive turbines. However, XGS's approach introduces a novel twist by integrating oil and gas techniques with cutting-edge material science.


At the heart of XGS's TRE technology lies a proprietary material that boasts an impressive thermal conductivity, surpassing that of conventional rock by a staggering 50 times. This material acts as a conduit, facilitating the rapid and efficient transfer of heat from the surrounding rocks to the working fluid circulating within the wellbore.


The key to XGS's innovation lies in its closed-loop process, which eliminates the need for large-scale hydraulic fracturing and mitigates concerns over induced seismicity. Unlike enhanced geothermal systems (EGS) that rely on extensive fracturing to connect injector and producer wells, XGS's approach offers greater geographic applicability and a lower carbon footprint.


Moreover, XGS's technology promises to revolutionize the economics of geothermal power generation. By maximizing heat absorption and minimizing drilling complexities, XGS aims to deliver cost-competitive electricity with levelized costs projected to be as low as $35/MWh.


The journey towards commercialization is well underway, with XGS securing substantial investments and gearing up for field tests. The company's ambitious timeline targets the drilling of commercial geothermal wells producing up to 10 megawatts thermal by 2026, paving the way for widespread adoption and integration into the energy grid.


In summary, XGS Energy's TRE technology represents a game-changer for the geothermal industry, offering a scalable, sustainable, and economically viable solution to meet the world's growing energy demands. As the transition towards cleaner energy sources accelerates, XGS's innovation holds the promise of unlocking the vast potential of geothermal power and reshaping the global energy landscape for generations to come.

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