EirGrid, the operator and developer of the electricity grid has marked another year of progress on the Celtic Interconnector project, with milestones including the first 84kms of marine cable laid and over 60% of high voltage direct current (HVDC) cable installed. Construction on the Celtic Interconnector project, the subsea cable linking the electricity grids of Ireland and France, has reached another significant milestone, passing two years in construction. The strategic energy project is being