Are Chinese data centers in the ocean and if so, are they successful?
Yes, China has built and deployed commercial data centers in the ocean, and they are widely considered highly successful technological proofs-of-concept. While tech giants like Microsoft pioneered the idea with Project Natick but eventually shelved it, Chinese companies have successfully scaled the technology into active commercial operation. [1, 2, 3, 4, 5, 6]
Operational Projects in China
- The Hainan Project: Launched in 2022 and entering full commercial use off the coast of Sanya, this project handles intense AI computing tasks and is operated by Beijing Sinnet. [1, 2, 3, 4]
- The Shanghai Project: Switched on in May 2026 near the Lingang Special Area, this $226 million facility is the world’s first underwater data center powered directly by offshore wind turbines. It holds 2,000 servers managed in partnership with China Telecom. [1, 2, 3, 4]
Metrics of Success
- Extreme Energy Efficiency: The Shanghai facility achieved a Power Usage Effectiveness (PUE) of below 1.15, which is 30% lower than typical land-based data centers. [1]
- Zero Freshwater Consumption: Traditional facilities consume millions of gallons of freshwater daily for cooling towers, whereas these use a closed-loop system cooled entirely by external seawater. [1, 2, 3]
- Land Conservation: Moving servers 35 meters below the ocean surface cuts land utilization by over 90%. [1, 2, 3]
- Lower Hardware Failure Rates: Servers sealed inside these pressurized, oxygen-free pods face no dust or human disruption, leading to significantly fewer component breakdowns. [1, 2]
- Ongoing ChallengesDespite their current operational success, experts note that the long-term viability of massive subsea computing scales faces strict friction: [1, 2, 3]
- Complex Maintenance: Repairs require heavy industrial cranes and professional divers to lift entire 1,300-ton capsules to the surface.
- Environmental Concerns: Critics worry that the constant thermal plumes emitted by undersea radiators could damage fragile local marine ecosystems or disrupt migratory paths if scaled too large. [1, 2, 3, 4, 5]