The top four underwater and extreme‑environment data centres

Startups Magazine · 43

Underwater and extreme-environment startups are redesigning data-centre cooling and power by moving AI compute into the ocean and other harsh locations. Subsea Cloud’s modular underwater capsules are designed to cut power usage by 30–40% while using seawater cooling and reserving capacity for 2,048 Nvidia H100 GPUs. The shift reduces reliance on land cooling and freshwater, enabling sealed offshore deployments that can be scaled, replaced, or self-powered depending on the design.