World's First Wind-Powered Underwater Data Center Opens

A data center is now operating 10 meters below the ocean's surface off Shanghai, powered by wind turbines and cooled by seawater instead of precious freshwater.

The Shanghai Lingang undersea data center launched in May and represents a breakthrough in sustainable technology. Built by HiCloud Technology and China Communications Construction, the 24-megawatt facility sits more than 6 miles offshore, drawing power from a nearby wind farm.

The ocean itself does much of the cooling work that typically guzzles energy and water. Traditional data centers on land spend up to 40% of their electricity just pumping chilled water around servers to prevent overheating. This underwater facility cuts power consumption by more than one-fifth compared to land-based equivalents.

The water savings matter even more as AI expands globally. The United Nations warned this week that data centers could consume 9.3 trillion liters of freshwater by 2030. That's enough to meet the annual domestic water needs of every person in sub-Saharan Africa.

By operating underwater, this facility eliminates the need for freshwater cooling entirely. The ocean provides natural temperature control without tapping into drinking water supplies that communities desperately need.

The Ripple Effect

China isn't alone in exploring underwater data centers. Microsoft tested the concept in Scotland's Orkney waters in 2018 with promising results. But China moved faster on commercial deployment by bringing together market demand, industrial capability, and policy support into a working project.

The Shanghai facility received 1.6 billion yuan in investment (about $177 million) as part of China's broader push to support AI infrastructure with clean energy. The government pledged that clean energy supplies for AI will significantly increase by 2030.

Marine biologists see manageable risks from the technology. While the seawater cooling creates some localized temperature changes, experts say these effects won't spread far. Professor Rick Stafford of Bournemouth University called it "likely a good idea" that will require ongoing monitoring of ocean ecosystems.

The facility in Shanghai follows HiCloud's first commercial underwater data center, which launched in Hainan in 2023, proving the technology works at scale.

As AI continues reshaping our world, solutions like wind-powered underwater data centers show we can meet growing tech demands without destroying the planet in the process.