Since 1997 and the introduction of the White Paper by the European Commission, the formation of a renewable energy policy has begun. The overall objective was to reduce the dependence on fossil fuel imports and increase the security of supply moving towards a low carbon economy [2]. Over these years the orientation of the EU has changed from indicative targets, referring to electricity and transport fuel, to specific targets that are legally established by a legislation pattern. What is more, change has occurred towards redefinition of the infrastructure policy that plays a key role to the growth of Renewable Energy Technologies (RET) [3]. Nowadays, it is common belief from all the stakeholders involved (government, producer and the end user) that the benefits of a society, where renewable sources account increasingly to the consumption needs, are multiple. Strengthening the national and local economy, jobs creation, better life quality and of course less harmful contribution to the environment are some of the strongest arguments in favor of Renewable Energy Technology.