South Aegean
By the time of the cited studies and company materials, the distribution system on Kos was already operating as an autonomous Kos–Kalymnos island power system that includes Pserimos, with local thermal power stations on Kos and Kalymnos supplying electricity to the surrounding islands via underwater cables. These sources confirm that Pserimos is served electrically from the Kos power plant through submarine cables, indicating that the Kos–Pserimos medium‑voltage AC link was in regular commercial operation as part of this wider island network.