Subj : Forget Project Natick - China says it has trumped Microsoft and l
To   : All
From : TechnologyDaily
Date : Sun Nov 02 2025 22:45:07

Forget Project Natick - China says it has trumped Microsoft and launched its 
first underwater data center

Date:
Sun, 02 Nov 2025 22:30:00 +0000

Description:
Chinas Lin-gang underwater data center combines wind energy and seawater 
cooling, marking a major step toward sustainable large-scale computing 
infrastructure.

FULL STORY
======================================================================Chinas 
underwater data center merges deep-sea cooling with renewable wind power The 
Lin-gang project delivers 2.3 megawatts in its first operational phase The 
oceans natural cooling replaces conventional chillers in Chinas new data hub 

Chinas experiment with submerging digital infrastructure beneath the ocean 
has now moved from theory to commercial reality. 

The Lin-gang Special Area in Shanghai has become home to what the country 
calls the worlds first underwater data center . 

The $226 million project combines renewable energy with deep-sea cooling to 
improve efficiency and sustainability. A new phase in data infrastructure 

The Lin-gang facilitys first stage is operational, producing 2.3 megawatts of 
capacity, and developers claim that the full build will eventually reach 24 
megawatts. 

This output would place it far ahead of Microsofts Project Natick, which was 
primarily an experimental effort and abandoned in 2024. 

The 35m-deep underwater facility is supported by major state-backed entities, 
including Shenergy, China Telecoms Shanghai branch, and CCCC Third Harbor 
Engineering. 

Its operator, Shanghai Hicloud, has already outlined a vision for a much 
larger 500-megawatt expansion in offshore environments. 

From a technical standpoint, the method is direct: servers are enclosed 
within watertight capsules and positioned on the seabed. 

The oceans natural properties act as the cooling medium, removing the need 
for conventional chillers. 

The company claims that this setup achieves a power usage effectiveness below 
1.15, an improvement over both Chinas current efficiency benchmark and many 
land-based hyperscale facilities. 

Advocates of the project argue that the underwater approach cuts energy 
demand for cooling while allowing near-total reliance on renewable sources. 

The developers estimate that about 95% of the facilitys electricity will come 
from offshore wind, eliminating the need for grid power or freshwater. 

If the figures hold, the site could mark real progress toward low-impact, 
sustainable computing. 

However, there are clear limitations. Microsofts earlier experience shows 
that there are practical drawbacks in servicing, upgrading, and replacing 
components. 

Since each capsule is pressurized, sealed, and coated to resist corrosion, 
once submerged, access becomes both costly and slow. 

The Lin-gang developers maintain that marine and thermal impacts remain 
within acceptable limits, but independent verification is still pending. 

As with Microsofts earlier venture, the question is not whether the system 
can function, but whether it can do so sustainably and profitably. 

If the results align with early projections, Chinas approach could influence 
how global companies deploy AI tools and manage data-intensive workloads at 
scale. 

Via Tom's Hardware 

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======================================================================
Link to news story:
https://www.techradar.com/pro/forget-project-natick-china-says-it-has-trumped-
microsoft-and-launched-its-first-underwater-data-center


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