Challenges in the utilization and circularity of renewable energy : the case of small islands in Greece

Shifting to renewable energy sources from fossil fuel for electricity generation and other uses is a challenging process. Specifically, in the Greek islands, where the potential for renewable energy is significant due to the favorable climate and morphology conditions, this ongoing transition is facing a number of challenges and opportunities. Three small islands in Greece are researched as case studies, from the point of view of renewable energy utilization and circularity integration potential. The current situation of the islands regarding renewable energy and circularity, the different approaches in the implementation of renewable energy sources and the different elements of these challenges and opportunities are discussed and highlighted. Finally, a list of 5 criteria is compiled, through which the potential of renewable energy utilization and circularity integration in small islands in Greece can be assessed for an effective implementation.