How dependent it is on how effective the UK promotion scheme still depends on what share is going to be exported. That is, a less than ideal promotion scheme in the UK would still be some extra revenue, on top of domestic revenue. After all, part of the time that the wind is blowing well in Ireland, it won't be blowing as well in the UK ~ including both weather systems passing through and diurnal wind patterns ~ especially offshore wind in the North Sea off the east coast of Scotland.

At the notional 50% given in the story, either substantial capital subsidy or firm feed-in tariffs on exported wind would seem to be required ~ and from the story, that seems to be what is on offer.

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.