Mr. Fintan Slye:

Another question concerned potential interconnection with Scotland. There is an interconnector between Northern Ireland and Scotland, the Moyle interconnector. Various parties have examined the possibility of building additional interconnection between the market in Ireland and Great Britain.

Generally, the landing point in Great Britain has tended to be further south than the border between England and Scotland, principally because there are transmission constraints in moving power from north to south between Scotland and England. For those developers who want to build further interconnection between this island and Great Britain, the optimal approach is to source a landing point south of those constraints.

As I said, three projects were examined a number of years ago and one is left. We continue to monitor the opportunities for interconnection with the UK because we have such good relationships with it.

Another question concerned the east-west interconnector, the second part of which referred to the outage. I will ask Mr. Fitzgerald to discuss that. The first part of the question concerned trading on the east-west interconnector post-Brexit. Our goal is to work with National Grid in the UK to make sure that trading is as seamless as possible post-Brexit.

We hope that as we transition to the new market design, that is, the integrated single electricity market, it would bring the two markets closer in terms of rules on how they operate and make it much easier to trade. We will try to work with National Grid to make sure that whatever comes out of the Article 50 Brexit negotiations there is minimum impact on the trade between the two jurisdictions as barriers, seams or anything like that results in costs to both sides.

The second part of the question concerned the outage of the east-west interconnector earlier this year. Mr. Fitzgerald might give some detail on what happened.