If you are interested in expanding your knowledge of the Energy sector, both its technical aspects as well its managerial/legal and economics dimensions, then the
Master of Science in Energy Systems at the International Hellenic University (IHU) is an option to consider.
The
MSc in Energy Systems has been in high demand since its first intake of students in 2010. The programme attracts leading academics from the USA, the UK, Israel, the UK, Greece and elsewhere together with instructors from public authorities. Visiting faculty at the School of Science & Technology can be found here:
http://www.tech.ihu.edu.gr/index.php/faculty-list.html#visiting_faculty The programme is interdisciplinary in nature, providing insights into how to apply Ener in the areas of "Renewable Energy" (more technical) while there is also a second stream on "Energy Management" for those from economics/law related backgrounds.
More about the MSc in Energy Systems can be found here:
http://www.tech.ihu.edu.gr/index.php/en/courses/mastersmscs/msc-in-energy-systems.html
The International Hellenic University (IHU) is Greece's only Public university, fully accredited as a European Union University, where all programmes are taught exclusively in English:
http://www.ihu.edu.gr/attachments/brochures/IHU_Prospectus.pdf