> If only they could harness the power of rain, Ireland would truly be an energy superpower.
I know this is in jest, but that's basically "dam up some valley rivers and put a hydroelectric generator on the end", and unfortunately Ireland isn't so good for that. (It's not just the physical geology, it's also all the people living in the places you'd flood).
Hydro as a battery is easier and works in far more locations, but that's not harnessing the power *of rain*.
But yes, Ireland and the UK have an absolutely huge wind power resource available around them, IIRC enough to supply all of Europe if the grid connections were there to export it all.
There has been a lot of proposals to dam up massive unpopulated sea-facing valleys in Mayo and Donegal and use pumped hydro with seawater. Was a bit topic 15 years ago, but never happened. All that happened was the silvermines pump hydro plant that seems behind schedule.
Prof Igor Shvets was behind this: https://en.wikipedia.org/wiki/Spirit_of_Ireland
Ireland briefly had the biggest hydroelectric dam in the world until the Hoover dam was built… but that was before electricity production really took off. Ireland doesn’t really have the geography for dams, the hills and rivers are far too small.