Positive
Project advancing - milestone achieved
High Impact
Major milestone or critical setback
The original HVDC Cross-Channel interconnector, a 160 MW mercury-arc valve link between Lydd in Kent, England and Échinghen near Boulogne-sur-Mer, France, was commissioned in 1961 and entered full commercial operation as the first HVDC submarine transmission scheme between the two countries, enabling bidirectional power exchange between their asynchronous grids.