Update and Characteristics of Low-Enthalpy Geothermal Applications in Greece

Abstract

The aim of the presentation is to give a brief overview of the direct geothermal uses in Greece and to discuss their characteristics. Greece holds a prominent place in Europe regarding the existence of promising geothermal resources (both high and low-enthalpy), which can be economically exploited. Currently, no geothermal electricity is produced in Greece. The installed capacity of direct uses in the beginning of 2007 is estimated at about 88 MWt, exhibiting an increase of about 18% compared to the figures reported at the World Geothermal Congress 2005. Still, balneology and open-door or closed-door pool bathing exhibits the largest share, following by greenhouse and soil heating. Earth-coupled and groundwater (or seawater) heat pumps have shown a significant increase during the past 2-3 years, due to increasing oil prices and easing of the permit requirements for drilling vertical wells.