Oireachtas Joint and Select Committees

Tuesday, 28 September 2021

Joint Oireachtas Committee on Climate Action

Energy Charter Treaty, Energy Security, Liquefied Natural Gas and Data Centres: Discussion

Dr. Patrick Bresnihan:

The figures are all provided by EirGrid. My understanding is that there is currently 1,800 MW of capacity with the data centres and that if those data centre applications that are in the planning process or that have put forward a planning proposal are given the green light, that is an additional 2,000 MW, which equals 3,800 MW. On a given day in winter, the peak demand in Ireland is 5,500 MW, and 3,800 MW of 5,500 MW is about 70% of demand. This would be by 2030. My understanding of the gap in the figures is that there is 1,800 MW currently, which is 11%, but there are data centres that have planning permission but have not been built out to full size yet. For example, Amazon has a very large data centre in Mulhuddart but it will not be built out for a number of years because it does so data shed by data shed. There might be 28 data sheds. That is how I understand those figures. I think Deputy Christopher O'Sullivan said that the idea that all planning proposals would be given the green light is a big "if", but those are the figures.