I tried looking for my primary source on this, it was an interview with someone involved with the gas infrastructure here. They mentioned specifically that it w

I tried looking for my primary source on this, it was an interview with someone involved with the gas infrastructure here. They mentioned specifically that it was newer than in the UK (and I assume some other EU countries) and that's why it could handle the higher admix. They also have good numbers on the appliances that are in use, there's been grants for a large scale upgrade, all the boilers that have been installed under these programs are rated to 80% H2. I've no doubt you're right there would have to be significant upgrades done somewhere, but it might not be as big an issue for Ireland and I suppose it depends on how cheap that green hydrogen is for us, but we have to get there first. We'll use it for something.