Ireland hasn't mined coal at all for about 40 years and _never_ really mined any significant part of its usage; even in the 19th century Ireland imported coal. Moneypoint was designed from the start to run on imported coal; it had no rail link, and a bloody great bulk-handling port attached to it. Getting rid of Moneypoint actually increased energy security (we do produce _some_ of our own natural gas, and the renewables don't require imports).