Meta buys a nuclear power plant (more or less)

Re:Meta buys a nuclear power plant (more or less) by jankeymeulen on Wednesday June 04, 2025 @10:00AM (#44180836)

Adding more 9s is costly, and AI training is very suitable to be throttled and/or interrupted. I'm not talking about days or weeks of downtime, but these things are definitely being considered. Source: I'm working at a Google datacenter.

See e.g. this post from Urs Hölze, one of the fathers of hyperscale computing: https://www.linkedin.com/posts/urs-h%C3%B6lzle_rethinking-lo...

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Re:Meta buys a nuclear power plant (more or less) by myrmidon on Wednesday June 04, 2025 @01:15PM (#44183071)

Hm... I'm still not really buying the "turn datacenter off during peak electricity demand" scenario at all, because the ratios just don't seem credible to me:

Assuming ~$10M of capex (to buy the datacenter) per MW of electrical power (required by the datacenter), and hardware that is obsolete after 5 years (or even 10!), turning that datacenter off for an hour just to save like ~50$/MWh (or whatever spot price is) seems extremely counterproductive, because your hardware running for that additional hour is worth multiple times that (you spent like >$100 per operating hour on the hardware alone assuming 10 year lifetime).

It seems much more attractive (and credible) to just install more batteries (or even a gas turbine), instead of chasing demand-side-regulation pretensions.

edit: thx for the link though, that is a very interesting study/data even if I disagree with that conclusion!

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