US startup plans to build data centers inside ocean-based wind turbines, servers water cooled via chilly North Sea — each leg houses a data center, firm set to launch three-legged prototype in Norway’s North Sea this year

Aikido Technologies offshore wind turbine
(Image credit: Aikido Technologies)

San Francisco-based startup Aikido Technologies, which is focused on building offshore wind turbines, is experimenting with adding data centers to its power platforms. According to IEEE Spectrum, the company plans to launch a 100-kilowatt unit that combines a wind turbine with an AI server off the coast of Norway in the North Sea by the end of 2026. This move will address the power and space challenges many AI hyperscalers are facing right now, especially as many projects get mired in “not in my backyard” fights.

Aikido is using a semi-submersible design for its offshore wind turbines, similar to what many oil and gas companies use when drilling in high seas. This design comes with three ballast-filled legs, filled with fresh water to help maintain buoyancy and stay upright. From there, it’s secured to the seabed via chains and anchors, ensuring that it will remain in the general area, even as the wind and ocean batter it.

The firm says that it can add up to a 3- to 4-MW data hall in the upper part of each leg, meaning each wind turbine can potentially become a 9- to 12-MW data center. The fresh-water ballast is still stored in the lower part of each leg, which is then pumped towards the AI chips for cooling. The warm water is then pumped back into the ballast, with the chilly waters of the North Sea cooling it down. It also added an air-conditioner to manage the temperature of other components that aren’t part of the water-cooling loop.

“We have this power from the wind. We have free cooling. We think we can be quite cost competitive compared to conventional data-center solutions,” Aikido CEO Sam Kanner told IEEE Spectrum. “This crunch in the next five years is an opportunity for us to prove this out and supply AI compute where it’s needed.”

(Image credit: Aikido Technologies)

However, building a wind-powered offshore data center is not without its challenges. First off, wind power isn’t exactly consistent throughout the year, so each 'data center' will have batteries for storing excess energy and delivering it in times of low production. If the lean season extends far longer than anticipated, it’s also connected to the grid, allowing it to use power from other sources. Aside from this, the sea can be quite unforgiving, and salt water is particularly corrosive, possibly leading to higher maintenance costs.

Nevertheless, experiments like this can potentially solve the power and space problems that most land-based data centers face at the moment. In fact, China has thought of a similar approach, with a wind-powered underwater data center prototype launched in Shanghai in October last year. Although this might seem like an ambitious project, it’s still far more feasible than Elon Musk’s plan of launching a million data center satellites orbiting around the earth.

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Jowi Morales
Contributing Writer
  • TechieTwo
    What could possibly go wrong with that idea?
    Reply
  • Notton
    Assuming they do things correctly, the life span of an offshore wind turbine is 20 years, the data center parts are 10 years, and batteries 5 to 15 years, dependent on material.

    Seeing as the construct is still on earth, it's not too difficult to perform maintenance when something does break.

    The only issue I see with this is some unscrupulous persons or entity stealing parts off of the data centers.
    We already have a problem with copper pipes and cables being stolen on land. A data center spread out off the coast would be an easy target even with security.
    Reply
  • hotaru251
    wide open easy access....have they somehow not seen underground sea fiber optic cables????

    These are just asking to be attacked....
    Reply
  • thisisaname
    Going to be interesting to service!
    Reply
  • alan.campbell99
    Notton said:
    Assuming they do things correctly, the life span of an offshore wind turbine is 20 years, the data center parts are 10 years, and batteries 5 to 15 years, dependent on material.
    Uh, the GPU's are probably only good for 2-3 years before they're likely obsolete afaik. Especially if Nvidia follows through with a new one every year or thereabouts.
    Reply
  • Notton
    alan.campbell99 said:
    Uh, the GPU's are probably only good for 2-3 years before they're likely obsolete afaik. Especially if Nvidia follows through with a new one every year or thereabouts.
    Yes, but the lifecycle of a data center is around 10 years using the same GPUs.

    See, unlike a desktop PC, you can't just upgrade a GPU every 3 years and call it a day. It takes months to optimize everything, and if you had to do that every 2-3 years, your data center would be down for most of it.
    Reply
  • wwenze1
    Use a coolant with low boiling point, use the heating of the CPUs to create steam, use the steam to push turbine. Use the seawater to cool the radiator. Tada we have an electric generator.
    Reply
  • Arkitekt78
    Yeah, cause wind has been super successful so far... 🤣🤣🤣
    Reply
  • Notton
    Arkitekt78 said:
    Yeah, cause wind has been super successful so far... 🤣🤣🤣
    Offshore wind is highly successful in Norway, Netherlands, Scotland, and other countries located in that part of the world.

    But do go on.
    Reply