Energy studies focuses on the extraction, manufacture, distillation, and sale of resources used to create power for maintaining societies. This ranges from traditional materials such as firewood and dung to modern sources including fossil fuels and nuclear power as well as alternative energy sources and future models.

Greece developed their education system with higher education at the top. Over 40% of all Greeks live in Athens and there is also where the best opportunities to pursue an higher education level is. Bordered by Albania, Macedonia, Bulgaria and Turkey, Greece is a tourist pearl with one of the world's fantastic beaches.

Requirements for the PhD program often involve the student having already obtained a Master’s degree. Additionally, a thesis or dissertation primarily consisting of original academic research must be submitted. In some countries, this work may even need to be defended in front of a panel.