29 JULY 2026 WorldWide Drilling Resource® The Future of Scalable Geothermal Solutions Adapted from Information by Green Therma North of Berlin, Germany, in the forests of Groß Schönebeck, Green Therma and Helmholtz-Zentrum für Geoforschung (GFZ Potsdam) are preparing to test a technology that could reshape how the world accesses one of its most powerful yet underused renewable energy sources: deep geothermal heat. For Green Therma, the company’s patented Heat4Ever™ solution, with vacuumized pipe completion (DualVac™) at its center, was developed around a simple idea: deep geothermal heat exists everywhere - we just need better tools to extract it efficiently. This year, the company’s DualVac system, a deep geothermal well design engineered to transport heat more than two miles below the surface with minimal heat loss, will be tested over the course of a year. The system will be monitored and challenged inside a single-well coaxial geothermal system generating data that could accelerate development of deep geothermal as a local, reliable, and carbon-neutral source of heat. For the first time, a DualVac completion with a continuous vacuum insulation used in cutting-edge industrial applications will be applied. If tests go as expected, it could dramatically increase the efficiency of geothermal operations and unlock renewable resources in locations previously considered too challenging. Many regions lack sufficient wind or solar potential during winter, and infrastructure changes can take decades. If the DualVac system proves successful, it could lower the barriers holding back deployment of geothermal solutions in cities, industrial regions, and cold climates. It represents not just a technological milestone, but a strategic option for countries seeking stable, always-on, weather-independent renewable energy available day and night, throughout all seasons. With this demonstration, Green Therma and GFZ Potsdam are taking a bold step toward a future where the heat beneath our feet becomes a scalable solution for the world’s growing energy needs. GEO Happy Independence Day! The WWDR offices will be closed on Friday, July 3rd; e-mail will be monitored. We wish you all a blessed and safe holiday.
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