Positive
Project advancing - milestone achieved
Medium Impact
Significant progress or notable issue
Offshore construction for the Celtic Interconnector commenced in summer 2025 with the start of marine cable‑laying operations off the Irish coast near Claycastle beach. The specialist vessel Calypso began installing the first 84 km of the HVDC submarine cable from around 10 km offshore, with additional vessels undertaking burial works, marking the first major offshore construction phase for the interconnector between east Cork and north‑west Brittany.