The escalating demand for artificial intelligence data centers has created a severe power crisis, prompting discussions — even beyond figures like Elon Musk — about radical solutions such as launching servers into space to secure continuous, 24/7 solar power access.
However, one innovative startup, offshore wind developer Aikido, believes the ocean offers a more viable alternative. This year, Aikido plans to deploy a 100-kilowatt demonstration data center off the coast of Norway. This compact unit will be housed within the submerged pods of a floating offshore wind turbine, leveraging its integrated power source.
Should this pilot prove successful, the company envisions scaling up significantly, with plans to deploy a larger version off the UK coast by 2028. This ambitious model would feature a 15 to 18-megawatt turbine designed to power a substantial 10 to 12-megawatt data center.
This strategic move offshore presents solutions to several pressing challenges. Foremost among them is the immediate proximity to a power source, with the energy generation facility directly overhead. Offshore winds are also notably more consistent than their onshore counterparts, and a modest battery system could effectively bridge any brief lulls in generation.
Furthermore, submerging data centers could effectively neutralize opposition from "Not In My Backyard" (NIMBY) groups, who frequently voice concerns over noise pollution and environmental impact associated with land-based facilities near their properties.
Finally, the constant presence of cold seawater offers a significantly simplified solution for server cooling – a particularly intricate problem for orbital data centers, which must devise specialized techniques to manage heat dissipation in the vacuum of space.
Despite addressing numerous existing hurdles, offshore data centers introduce their own set of complexities. The marine environment is inherently harsh. While submerged servers would be shielded from direct wave impact, they would not be entirely stationary, necessitating robust anchoring and securing mechanisms. Moreover, seawater's corrosive nature demands that all equipment, including the protective container and critical power and data connections, be rigorously hardened against its effects.
Aikido is not the pioneer in proposing subsea data center deployment. Microsoft initially explored this concept over a decade ago, culminating in a 2018 experiment off the coast of Scotland. This trial proved moderately successful, with only six out of more than 850 servers failing over a 25-month period. (The low failure rate was potentially aided by the data hall being filled with inert nitrogen gas.)
Microsoft secured several patents related to this technology over the years, which it subsequently open-sourced in 2021. However, by 2024, the company ultimately decided to discontinue the project.
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