China Opens World’s First Wind-Powered Underwater Data Center
China has opened a wind-powered underwater data center near Shanghai to cut cooling costs and use more green electricity for AI infrastructure.
Intelligence analysis by GPT-5.4 Mini
The Shanghai facility combines underwater cooling with offshore wind power, making it the first data center of its kind to run on wind energy. The project is part of China’s push to expand AI infrastructure while lowering fossil-fuel use and land, water, and energy demand.
It is like putting a giant computer factory underwater so the ocean helps keep it cool, then powering it with wind instead of dirty fuel. That lets China run big AI computers with less electricity wasted.
Analysis
What opened
China has brought online what WIRED describes as the world’s first underwater data center powered by wind. The facility sits off the coast of Shanghai in the Lin-gang Special Zone and was developed by HiCloud Technology with China Communications Construction. The project reportedly cost 1.6 billion yuan, or about $236 million.
Why the design matters
The data center is submerged about 10 meters below the surface, where seawater acts as a natural cooling system. That matters because cooling is one of the biggest energy drains in conventional data centers. In this setup, the article says less than 10 percent of energy goes to cooling, compared with roughly 40 to 50 percent in typical land-based facilities.
The first phase is designed for an initial capacity of 24 megawatts and a power-usage effectiveness, or PUE, of no more than 1.15. In industry terms, that is a strong efficiency target and signals that the site is meant to be competitive with advanced conventional facilities.
The AI and energy angle
The article frames the project as part of China’s larger effort to support AI growth while reducing dependence on fossil fuels. It says the government sees the facility as using more than 95 percent green electricity, with reduced energy consumption and major cuts in land and water use compared with traditional onshore data centers.
This is also a geopolitical story. The piece notes that AI-focused data centers are heavily concentrated in China and the United States, and that both countries are racing to secure the power needed for AI systems. China’s answer, as described here, is to pair renewable energy with unusual infrastructure choices and broader energy-market reforms.
Bigger context
HiCloud had already opened an underwater commercial data center in Hainan in 2023, but the Shanghai site is the first of its kind to run on offshore wind power. The article presents it as a milestone in China’s effort to build the infrastructure for the next generation of AI while aligning that buildout with its energy-security goals.
Key points
- China says this is the world’s first underwater data center powered by wind.
- The facility is off Shanghai and has an initial capacity of 24 megawatts.
- Seawater cooling is meant to cut the energy typically spent on air conditioning.
- The article says the project is designed to use more than 95 percent green electricity.
- The move fits China’s broader push to support AI infrastructure and energy self-sufficiency.
If the system works as intended, it could show that AI infrastructure can be built with far less cooling waste and much more renewable power. That could help China expand computing capacity without increasing land, water, and fossil-fuel demand as much as older designs do.
The article does not explain the long-term operating risks of keeping major hardware underwater, so durability and maintenance remain unclear. Even if the site is efficient, it may still be hard to scale widely if costs, construction complexity, or grid and wind variability limit deployment.
