Mr. Dara Lynott:

Our model uniquely modelled approximately 250,000 hours of weather data. Many studies settle into the averages of various kinds of weather but our study looked at the extremes. These are when there is far too much wind, and its reliance on interconnection, but also when there is not enough wind. The Deputy might remember we had a bit of that at Christmas, when the weather was cold and very cloudy with not much wind. We had a number of amber alerts around that time.

Our study indicated that in order to prevent significant percentages of dispatch down, all the interconnection and all the current capacity that is on the system for gas generation will be needed. In order to avoid significant levels of dispatch down, and to keep those levels at about 7%, approximately 1.1 GW of battery storage that is currently not on the system will need to be brought on. If that battery storage and that interconnection do not come online, there will be difficulties with security of supply in 2030.