Positive
Project advancing - milestone achieved
Medium Impact
Significant progress or notable issue
Installation of the initial HVDC Cross-Channel link’s 45 km undersea cable between Lydd in Kent, England, and Echinghen near Boulogne-sur-Mer in France was completed in 1961, establishing a 100 kV, 160 MW monopolar mercury-arc valve HVDC interconnector across the English Channel. The surface-laid cable, built following a 1955 construction award to ASEA, enabled the first operational HVDC submarine transmission scheme between the UK and France.