In July 2011 the Minister for Communications, Energy and Natural Resources appointed an International Expert Commission to:
- Examine the case for, and cost of, undergrounding all or part of the North-South 400 kV Interconnection project;
- Review expert literature already available both in Ireland and internationally in relation to undergrounding high voltage power lines;
- Consider the route or routes proposed by EirGrid;
- and Consult with EirGrid, the North East Pylon Pressure Committee and the County Monaghan Anti-Pylon Committee, and other bodies / organisations.
The final report was published in January 2012.