With 75% in 2023, it means there are still headroom for expansion without hurting the economics too much of existing wind farms. Denmark had a very clear growth of wind farms up to about 100% of demand during optimal weather, and then a very clear stop in growth afterward. On average it still only produce about half the energy consumed in Denmark, so over time I do not expect to see Ireland to go much higher than 50%. It might get a slight advantage given the improved wind farm technology to utilize low wind conditions.

I do see in the political goals for Ireland that they, like Germany and many other countries in EU, are relying on the idea to turn wind into green hydrogen once they hit that 100% during optimal weather. Peoples faith in that strategy has gone down significant in the last 5-10 years.