“…In terms of installed capacity as a factor of inhabitants Iceland (>1900 MWe/mill.people) and New Zealand (150 MWe/mill.people) are world leader (USA reaches 10 MWe/mill.people). A number of scientific publications review the geothermal energy in different countries or regions including Australia (Bahadori et al, 2013), Italy (Carlino et al, 2012), Indonesia (Alzwar, 1986;Hochstein and Moore, 2008), Kenya (Tole, 1996), Turkey (Acar, 2003;Hepbasli and Ozgener, 2004), Papua New Guinea (Berhane and Mosusu, 1997), USA (Tester et al, 2007).…”