Greece is sitting on a hidden treasure trove right beneath its feet not gold or oil, but something far more sustainable and exciting: geothermal energy. By: Robert Buluma In mid-December 2025, the Ministry of Environment and Energy (ΥΠΕΝ) took a major step forward by publishing two key ministerial decisions that officially classify geothermal fields across the country. The first decision (ΥΠΕΝ/ΔΑΠ/142903/684, published in Government Gazette ΦΕΚ 7320/Β/2025) designates 14 geothermal fields of local interest, featuring temperatures ranging from 30°C to 90°C—perfect for direct-use applications like district heating, greenhouse agriculture, spa tourism, aquaculture, and even small-scale electricity generation. The second decision upgrades the Stypsi field on Lesvos to national interest status (based on updated data from ΔΕΗ Ανανεώσιμες), with temperatures exceeding 90°C and reservoir depths of 250–600 meters. This opens the door to larger-scale, high-enthalpy geothermal power production. W...
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