**4. Other EGS programs in the world**

The Soultz EGS is the only operating site at present. It benefited from the experience developed on other sites all around the world. The objective here is not to provide a complete review of these projects but to show the impact they had on the Soultz project. More details on these projects can be found in MIT (2006) and in the abundant literature easily available (e.g. Brown, 2000, 2009; Yanagisawa et al., 2011; Yasukawa and Takasugi, 2003). An overview of HDR/EGS programs in the world is given in table 6.
