Oracle will use three small nuclear reactors to power new 1-gigawatt AI data center

Nuclear power plant
Nuclear power plant (Image credit: Shutterstock)

Oracle has secured the permits to build three small modular reactors (SMRs) to power its AI data center. During its quarterly earnings call, the company said (via The Register) that it plans to use those tiny nuclear plants for a planned AI data center with at least one-gigawatt capacity.

SMRs are miniaturized reactors similarly sized to those used on naval vessels like submarines and aircraft carriers. However, since they do not have to be built inside the cramped space of a warship, SMRs do not have to be customized to the needs of a particular vessel. This means Oracle could find a supplier to mass produce it for them at a lower cost than the Navy. Furthermore, an SMR’s modular design means that it should, in theory, be cheaper to operate, especially as it no longer has the massive infrastructure often associated with traditional nuclear power plants.

However, there’s still the question of whether the surrounding area where Oracle plans to deploy its SMRs would allow it. After all, nuclear power plants have this stigma about them, especially after the highly publicized meltdowns at Chernobyl and Fukushima, Japan. Besides, securing the permits to build SMRs is likely different from getting the green light to operate them. Aside from safety concerns, Oracle would also need to contend with security issues, especially as nuclear material is hazardous, especially if it falls into the wrong hands.

Nevertheless, Oracle is likely keen on getting this project up and running. “Oracle has 162 cloud data centers, live and under construction worldwide. The largest of these data centers is 800 megawatts, and it will contain acres of Nvidia GPU clusters able to train the world’s largest AI models,” says Oracle founder, executive chairman, and CTO Larry Ellison during the call. “Soon, Oracle will begin construction of data centers that are more than a gigawatt.”

With this vast number of data centers, one of Oracle’s most significant expenses is likely electricity. With global warming and the carbon footprint on many people’s minds, the company needs to find economical sources of green energy—something that an SMR could potentially deliver.

Oracle isn’t the first company to look into nuclear power, as Microsoft has reportedly begun searching for a critical figurehead for its nuclear strategy. Nevertheless, the former has taken the next step in acquiring building permits. But don’t expect to see tiny nuclear reactors popping up around the country next year just yet. After all, it will take years before a nuclear power plant, even a tiny one, can go from a hole in the ground into a fully functional electrical source. The Register even said that the most optimistic estimates for when SMRs will begin deployment are in the early 2030s — some seven to ten years from now. In the meantime, data centers would have to find other energy sources to power their AI dreams.

Jowi Morales
Contributing Writer

Jowi Morales is a tech enthusiast with years of experience working in the industry. He’s been writing with several tech publications since 2021, where he’s been interested in tech hardware and consumer electronics.

  • King_V
    This seems kind of an odd choice, given the time scale involved.
    Reply
  • sunnykabs
    Admin said:
    Oracle revealed during its quarterly earnings call that it has secured permits to build a trio of small modular nuclear reactors that could deliver power for a 1-gigawatt AI data center.

    Oracle will use three small nuclear reactors to power new 1-gigawatt AI data center : Read more
    If you need 800MW, why build 3 SMRs, Might as well build an AP1000, 1.1GW. Proven to work, already complete design ready, certified. 4 -5 years construction and online in 5-6 years.
    Reply
  • Sluggotg
    sunnykabs said:
    If you need 800MW, why build 3 SMRs, Might as well build an AP1000, 1.1GW. Proven to work, already complete design ready, certified. 4 -5 years construction and online in 5-6 years.
    I did a couple of stints in the US Navy Nuclear Power Program and 30 years at a Commercial Nuclear Power plant as an Operator. Large ones, (like the one I worked at), are generally refueled once every 2 years, (it used to be each year). When the plant is down for refuel and maintenance you are production nothing. With SMRs, (like the ones from Nuscale), you can shut down a single reactor for maintenance/refueling. This saves time and money.

    The new SMRs are really nice. Operating and Maintaining them is much easier. The article compares them to Naval Reactors. They are nothing like Naval Reactors. Navy Reactors are fueled to last many years and are extremely Heavy Duty. They are not commercially viable nor are they a good choice for civilian plants.

    It is a long subject butI hope Oracle pulls it off!
    Reply
  • mras2
    sunnykabs said:
    If you need 800MW, why build 3 SMRs, Might as well build an AP1000, 1.1GW. Proven to work, already complete design ready, certified. 4 -5 years construction and online in 5-6 years.
    Cause, a nuclear plant only has 80-90% uptime.
    You need 3x for a 2+1 redudancy.
    No SMR does 500-666MW,
    Currently best PROJECTED SMR's, does about 150MW electricity tops a piece.
    This will end up being extremely expensive, and a poor businesscase...
    Article says a GW, thats 1000MW, not 800MW.
    Reply
  • gg83
    I love the concept of SMR!!!! It's great to see big companies push for the tech.
    Reply
  • ThomasKinsley
    I'm sure tech companies will handle nuclear energy with the exact levels of wisdom, thoughtfulness and care that they handle their codebase.
    Reply
  • tennis2
    Thought process:
    HA, I want a mini nuclear power plant in my PC
    You know what looks like a nuclear cooling tower, LN2 pots
    etc etc
    What if you could capture the waste heat from a CPU (or multiple) and compress it into something hot enough to generate electricity (thermoelectric generator or something). I wonder what the recovery efficiency would be.... could you regain..50%(?) of the power you used/wasted?
    Ed: Looks like 5-15% efficiency on TEGs...bummer
    Reply
  • USAFRet
    ThomasKinsley said:
    I'm sure tech companies will handle nuclear energy with the exact levels of wisdom, thoughtfulness and care that they handle their codebase.
    Kodak, ostensibly a "tech company", had their own small reactor for decades.
    https://www.nbcnews.com/id/wbna47417980
    Reply
  • emike09
    I'm 100% for nuclear. People with stigmas against it need to assess the facts and realize its potential. 583 people died in a single aviation incident in 1977, but we're all still flying more than ever because we realize the benefit and convenience of it.
    Reply
  • Kondamin
    ThomasKinsley said:
    I'm sure tech companies will handle nuclear energy with the exact levels of wisdom, thoughtfulness and care that they handle their codebase
    Disney has a license, let that sink in
    Reply