https://geotermianews.pl/en/ Geothermal energy news from Poland: heating plants, wells, research, funding and tenders. en Wed, 30 Sep 2026 01:25:32 +0000 GeotermiaNews.pl build.py https://geotermianews.pl/en/2026-09-30-green-therma-obieg-zamkniety/ https://geotermianews.pl/en/2026-09-30-green-therma-obieg-zamkniety/ Wed, 30 Sep 2026 06:00:00 +0000 World Green Therma has installed a demonstrator of its single-well closed-loop geothermal technology at the Groß Schönebeck research site in Germany. Heat is being brought up from more than 3 km depth.