I believe that the energy security aspect of renewable energy hasn't gotten anywhere near the attention it deserves, especially when it comes to decentralised generation.
Ukraine is going into its third winter of strikes aimed at its energy infrastructure. Such strikes are only effective because of centralised power generation and power distribution networks, and it's therefore possible to cut power to large areas with relatively few strikes.
Contrast that with wind turbines for every town and village, solar on every rooftop, and batteries in every home, farm and business. It's not that strikes on power stations & substations don't matter anymore, but their impact is massively reduced. In the Irish context it'd be more about mitigating the impacts of winter storms and fluctuating fossil fuel prices, but the benefits are still there.