Cable Route Engineering

By August 2024, the project team for the Dublin Array onshore electrical system had defined and optimised the preferred onshore export cable corridor for the grid connection between the Shanganagh Cliffs landfall and the new Ballyogan onshore substation adjacent to the existing Carrickmines 220 kV substation. The approximately 8 km corridor, refined following public consultations in 2020 and 2023, comprises two buried three‑phase 220 kV circuits in separate trenches largely within public roads and lands, incorporates trenchless installation at key crossings, and includes a Transition Joint Bay at Shanganagh Cliffs and joint bays along the route, all designed to EirGrid specifications and forming the basis of the forthcoming planning application.