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Ireland’s datacentres overtake electricity use of all urban homes combined | The Guardian
(www.theguardian.com)
This is a most excellent place for technology news and articles.
Well, in the US, here's a decent breakdown by sector:
I don't know what the breakdown is between residential and commercial, but I wouldn't be surprised if it's pretty even.
And here's data for Ireland:
So yeah, unless you count agriculture as "industries," they are one of the smaller factors in Ireland, especially compared to other parts of the world.