Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 Direct Utilization of Geothermal Energy 2010 Worldwide Review John W. Lund1, Derek H. Freeston2, Tonya L. Boyd1 1Geo-Heat Center, Oregon Institute of Technology, Klamath Falls, Oregon, USA 2Geothermal Institute, University of Auckland, Auckland, New Zealand
[email protected] Keywords: direct use, spas, balneology, space heating, based on country update papers submitted for the World district heating, aquaculture, greenhouses, ground-source Geothermal Congress 2010 (WGC2010) and covers the heat pumps, agricultural drying, industrial applications, period 2005 to 2009. Papers from 70 countries have been snow melting, energy savings received, 66 of which reported some geothermal direct-use with 12 additional countries added from other sources for a ABSTRACT total of 78 countries – an increase of six countries from WGC2005 (Bosnia & Herzegovina, El Salvador, Estonia, The worldwide application of geothermal energy for direct Morocco, South Africa and Tajikistan). In the case where utilization is reviewed. This paper attempts to update the data are missing or incomplete, the authors have relied on previous survey carried out in 2005, presented at the World country update reports from the World Geothermal Geothermal Congress 2005 (WGC2005) in Turkey and Congresses of 1995, 2000 and 2005 (WGC95, WGC2000, subsequently updated in Geothermics (vol. 34) (Lund, WGC2005), as well as from two Geothermics publications Freeston and Boyd, 2005). This update also compares data (Lund and Freeston, 2001, and Lund et al., 2005), and from 1995 and 2000 presented at two World Geothermal personal communications. Data from WGC2010 are also Congresses in Italy and Japan (WGC95 and WGC2000).