> very little coal

For practical purposes no coal. There are no working coal mines in Ireland, and Moneypoint would have run entirely on imported coal since it was built. It was built with a bulk handling terminal for this purpose (very visible in photos of the plant: https://esb.ie/news---insights/inside-esb/moneypoint-power-s...).

Note that it doesn't have a rail link; even if there had been the desire to use domestic coal and someone had gotten a mine going, there would have been no way to get it there.