Positive
Project advancing - milestone achieved
Low Impact
Minor progress or informational
By late 2025, EirGrid had completed the first phase of marine and coastal surveys for the Tonn Nua (Maritime Area A) grid connection, including extensive offshore geophysical data acquisition. Over the 2025 campaign, approximately 3,770 kilometres of seabed were surveyed under EirGrid’s Offshore Marine Survey Framework to characterise potential export cable corridors and inform design of the offshore transmission infrastructure.