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Arthur T Knackerbracket [soylentnews.org] writes:

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Arthur T Knackerbracket has processed the following story [theregister.com]:

Meta believes it will need one to four gigawatts of nuclear power, in additional to the energy it already consumes, to fuel its AI ambitions. As such, it will put out a request for proposals (RFP) to find developers capable of supplying that level of electricity in the United States by early 2030.

"Advancing the technologies that will build the future of human connection — including the next wave of AI innovation — requires electric grids to expand and embrace new sources of reliable, clean and renewable energy," the Facebook parent company wrote in a blog post [atmeta.com] announcing the RFP on Tuesday.

But while Meta plans to continue investing in solar and wind, hyperscalers seem convinced that harnessing the atom is the only practical means of meeting AI's thirst for power while making good on its sustainability commitments.

This wouldn't be the first time Meta has pursued nuclear fission power. As we previously reported, Meta had planned to build an atomic datacenter complex, but was foiled [theregister.com] after a rare species of bees were discovered on a prospective site, resulting in its cancellation.

Meta has become a leading developer of generative AI models with Llama 3.1 405B being among its most sophisticated. To support the development of these and future models, Zuckerberg has committed [theregister.com] to deploying some 600,000 GPUs, which require a prodigious amount of power to run.

As we understand it, additional details regarding the nature of the RFP will be provided to qualified companies. However, we do know that Meta is looking for someone to deploy between one and four gigawatts of nuclear power, suggesting they're still a little uncertain as to the extent of power that'll be required to achieve their goals and that these plans are destined for the US.

The blog post also mentions the prospect of deploying multiple units to cut costs. Given the timeline, this suggests that Meta is very likely looking at small modular reactors [theregister.com] (SMRs).

As their name suggests, SMRs are really just miniaturized reactors not unlike those found in nuclear submarines and aircraft carriers, which can be manufactured and co-located alongside datacenters and other industrial buildings.

Many hyperscalers and cloud providers faced with AI's energy demands have turned to SMRs for salvation, and there's certainly no shortage of options to choose from. Oklo, X-energy, Terapower, Kairos Power, and NuScale Power are just a handful of the companies actively developing reactor designs. However, it's worth noting that despite all the hype around these itty bitty reactors, nobody has actually managed to prove their commercial viability.

But with few alternatives that don't involve abandoning their lofty sustainability pledges, many datacenter operators are pushing ahead with power purchase agreements with SMR vendors. Most recently, Sam Altman-backed startup Oklo revealed it had obtained [theregister.com] letters of intent from two major datacenter providers to deliver 750 megawatts of power.

Amazon has also committed to investing in nuclear power. Back in October, the e-commerce and cloud giant announced [theregister.com] it was working with X-energy to construct several SMRs. Google, meanwhile, has teamed up [theregister.com] with Kairos on a similar plan, and Oracle says [theregister.com] it's obtained building permits for a trio of SMRs to power a one gigawatt datacenter campus.

However, it remains to be seen whether these plans will ever pan out. In addition to strict regulatory controls on nuclear power, the technology is seen by many as unsafe despite evidence to the contrary. Perhaps more pressing is the fact that SMRs, at least in the early days, won't be cheap.

Earlier this year, the Institute for Energy Economics and Financial Analysis argued [theregister.com] that SMRs are "too expensive, too slow to build, and too risky to play a significant role in transitioning away from fossil fuels."

Of course, SMRs aren't Meta's only option here. Microsoft is working with Constellation Energy to bring the decommissioned Unit 1 reactor at Three Mile Island back online [theregister.com]. Meanwhile, Amazon earlier this year purchased [theregister.com] Talen Energy's Cumulus atomic datacenter co-located alongside the 2.5 gigawatt Susquehanna nuclear power plant in Pennsylvania for $650 million.

However, even existing nuclear infrastructure isn't a sure bet. This November, Amazon hit a roadblock [theregister.com] after federal regulators rejected a deal that would have let it increase its power draw at the site from 300 to 480 megawatts.

Bringing these plans online is by no means trivial. As we previously reported, the Palisades nuclear power plant in Michigan, which received a $1.5 billion loan from Uncle Sam, will require [theregister.com] substantial and costly repairs to its steam generator tubes.

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