That is about 3% of California's total energy usage
Or about 11,000 GWh which is about 4% of California which means without the theatrics:
California has 4x more data centers than Ireland.
California: ~810 watts per person. (278,000 GWh / 39.4 million people)
Ireland: ~690 watts per person. (32,000 GWh / 5.3 million people)
We have air conditioning and that may be why we use more POWAH
What fraction of Irish GDP is linked to datacenters? If I remember correctly from the pre-AI world, datacenters were at the heart of Dublin's industrial strategy, and they were credibly linked to a double-digit fraction of production.
I'm actually quite surprised that California only has 4x as many data centers, with CA having more than 7x the population (not to mention being pivotal in the Information Age)