The project ‘Fostering the use of low temperature geothermal sources through the development of operational exploitation guidelines and green energy solutions of enterprising’ with the Acronym ENERGEIA is a Strategic Co-Funded Project of the European Territorial Cooperation Programme Greece-Bulgaria 2007-2013. The project reflects the jointly identified need to strengthen the collaboration between the competent authorities and institutions of the two countries, with the aim to promote the wise use of low temperature geothermal fields as strategic energy sources for green development in Greece and Bulgaria. This common need for sustainable energy resources was identified by the Decentralised Administration of Macedonia and Thrace (LP), the Region of Central Macedonia (P4) and by the Ministry of Economy, Energy and Tourism (P7) who jointly initiated the development of the current project proposal, in agreement with the context set by the Renewable Energy Directive 2009 (which requires EU member states to produce a pre-agreed proportion of energy consumption from renewable sources such that the EU as a whole shall obtain at least 20% of total energy consumption from renewable by 2020). The aforementioned partners, who have been involved in relevant actions over the past years within their respective territories, have initiated since a long time a consultation procedure with the aim to develop a partnership suitable for taking action towards the achievement of the specific goals identified. This consultation procedure and the relevant efforts resulted in the development of a partnership that eventually also included the Democritus University of Thrace and the Aristotle University of Thessaloniki – organizations with a large scientific experience on the specific field – as well as the rest of the partners – municipalities in Greece and Bulgaria with geothermal fields in their respective territories.