Oireachtas Joint and Select Committees

Tuesday, 21 April 2015

Joint Oireachtas Committee on Transport and Communications

North-South Interconnector: EirGrid

11:30 am

Mr. Fintan Slye:

The issue is that because it is a single circuit that can be lost with a single event, it is not possible to put that much capacity on it. A single event would be able to take down the systems in Northern Ireland and the Republic if we did that. The Deputy correctly articulated broadly the size of the system in Northern Ireland. It has an average load of 1,400 MW or 1,500 MW. If all of that was flowing, in the Deputy's example, on that single set of towers between North and South and someone drove a truck into one of the towers, the power system in Northern Ireland would be immediately collapsed.