HV transmission technologies for the interconnection of Aegean Sea islands and offshore wind farms

The main objective of this paper is to provide an overview of the state-of-the-art transmission technologies for the interconnection of remote island networks and offshore wind power plants (OWPPs), applicable to the interconnection planning for the Aegean Sea, Greece. Alternative transmission options are presented, describing the advantages and drawbacks of each technology, namely High Voltage AC (HVAC), and High Voltage DC (HVDC). Important developments in HVDC transmission based on Voltage Source Converters (VSC-HVDC) are also highlighted, along with essential grid code (GC) requirements applicable to offshore generating units. Last, important technical considerations requiring further research are also pointed out and discussed.