Installation of a medium-voltage submarine interconnector between Pilio and Skiathos, consisting of two circuits of 3 x 150 Al 20 kV cable with an approximate route length of 5 km (10 km total), was completed in 1989, adding a further mainland–island connection in the Volos area (ΔΠΚΕ).
The DEDDIE 2026–2030 network development appendices list the Pilio–Skiathos mainland-to-island submarine connection with configuration "2, 3 x 150 Al, 20" and technical data, recorded with the year 1989 in the Volos (ΔΠΚΕ) area, indicating that this circuit has been in operation since 1989 at full commercial service.
| Volos (Βόλου) | Volos (Magnesia) | |
|---|---|---|
| Landfall | Pilio / Pelion (Πήλιο) — mainland Pelion coast (Magnesia) | Skiathos (Σκιάθος) — island Skiathos |
| Grid Connection | — | — |
Volos (Βόλου)
Volos (Magnesia)