Construction Other

In April 2026, Siemens Energy and civil contractor NGE announced completion of the construction of the Ar Merzher converter station infrastructure at La Martyre, Finistère. Civil works delivered by NGE since July 2023 used approximately 4,300 m³ of concrete, 120 foundations, 4,000 m² of raft slab, 15 km of ducts and 7 km of copper cables across the converter compound. With infrastructure construction now complete, the project enters the equipment commissioning phase: main works are scheduled for completion in May 2026, with energisation planned from June 2026 and full commissioning expected by 2028. The Ar Merzher station converts direct current transmitted via the submarine cable into alternating current for injection into the French electricity grid, and vice versa, enabling power exchanges between France and Ireland over the 700 MW HVDC link. Siemens Energy project manager Alexandre Pinson confirmed the construction-completion milestone, noting "we are now entering the final phase of the project, the commissioning of the equipment."