The world's first wind-powered underwater datacentre has begun operations off Shanghai's coast, marking a significant milestone in sustainable AI infrastructure. The 24-megawatt facility, a joint venture between HiCloud Technology and China Communications Construction, sits 10 metres below the surface, roughly 10km offshore.
Powered entirely by a nearby offshore windfarm, the datacentre consumes over one-fifth less energy than land-based equivalents, thanks largely to natural seawater cooling eliminating the need for energy-intensive chilling systems.
Water conservation is equally significant. Traditional datacentres could consume up to 9.3 trillion litres globally by 2030, according to the UN University. Underwater placement dramatically reduces freshwater dependency.
While Microsoft pioneered the concept near Scotland's Orkney Islands in 2018, China accelerated commercial deployment by combining industrial capability, marine engineering, and strong policy support.
Receiving £177 million in investment, the project reflects China's broader AI ambition — pledging significantly increased clean energy for AI infrastructure by 2030.
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