This paper analyzes Turkey's geothermal energy future perspective and power generation strategy with a view to explaining Delphi approach to geothermal energy development. In this study, the two round Delphi survey was conducted to experts to determine and measure the expectations of the sector representatives through online surveys where a total of 32 experts responded from 14 different locations. The majority of the Delphi survey respondents were from different universities (59.4%), industries (25%) and governmental organizations (15.6%). The article discusses expert sights on geothermal energy technologies and also includes bibliometrical approaches in order to assess the potentials of emerging and existing technologies. The results indicated that Turkeys geothermal power installed capacity is expected to reach 500 MW by around 2021 subsequent to the implementation of "Renovation of Standards and Regulations" and "Fiscal Approaches". (C) 2012 Elsevier Inc. All rights reserved.