“They Just Put the Internet Underwater”: China’s First Ocean Data Center Is Running on Seawater and It’s Changing Everything

In a landmark achievement, China has launched the world’s first commercial underwater data center in Hainan. This initiative symbolizes a significant advancement in the nation’s efforts to expand its “blue economy” and reduce energy consumption associated with traditional land-based data centers. By situating data servers inside a massive underwater cabin, this project aims to harness the natural cooling benefits of the ocean, thereby cutting down on the substantial energy costs typically required for cooling. As the demand for data services grows with the rise of artificial intelligence and cloud computing, this innovative approach could pave the way for more sustainable data infrastructure solutions.

Harnessing Natural Cooling from Ocean Currents

Traditional data centers face the challenge of high energy consumption due to the need for extensive cooling systems. The new underwater data center innovatively addresses this issue by utilizing seawater as a natural coolant. This natural cooling method significantly reduces the energy required to prevent data servers from overheating.

Pu Ding, the project manager at Shenzhen HiCloud Data Centre Technology, explained that the underwater location allows the ocean’s stable temperatures to effectively cool the servers. “Compared to land-based data centers, data centers under the sea can reduce energy consumption needed for cooling, helping to lower operational costs,” he elaborated. Each submerged cabin, positioned 115 feet below the surface, is designed to hold 24 server racks that can support up to 500 servers, thus maximizing efficiency while minimizing environmental impact.

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China on Tuesday officially launched the world’s first commercial underwater data center (UDC) project powered by an offshore wind farm.

A Key Project in Hainan’s Free-Trade Zone

The underwater data center is a cornerstone in Hainan’s strategic plan to transform its free-trade zone into a hub of technology and maritime innovation. As part of its 14th Five-Year Plan, the province aims to establish a network of 100 underwater data cabins. This network will bolster sectors such as marine research, digital services, and smart manufacturing, reinforcing Hainan’s pivotal role in China’s blue economy.

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Further, China has introduced policy reforms that allow full foreign ownership of data centers and telecom services in key areas, including Hainan. This policy shift is intended to attract global tech giants and enhance international partnerships. Giulia Interesse from China Briefing noted, “This policy update is a response to mounting global demand for data center services fueled by advances in generative AI and cloud computing.” By opening its borders, China hopes to draw in multinational companies eager to leverage its burgeoning market potential.

A Different Path from Microsoft’s Project Natick

China’s Hainan initiative diverges significantly from previous Western experiments, such as Microsoft’s Project Natick. Launched in 2014, Project Natick involved submerging an experimental data center off Scotland’s coast. This project demonstrated the technical feasibility of underwater data centers by successfully operating 855 servers underwater for two years.

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Despite its success, Microsoft decided not to commercialize the project, ceasing operations in 2024. In contrast, China has taken the concept further by launching a commercial-scale underwater data center. This move positions China as the first nation to successfully integrate such infrastructure into its economic strategy, thereby translating a once-experimental idea into a practical commercial application.

Environmental and Economic Implications

The introduction of underwater data centers represents not just a technological innovation but also an environmentally conscious step forward. By leveraging the ocean’s natural cooling properties, these centers significantly reduce the carbon footprint associated with traditional data storage facilities. This aligns with global efforts to combat climate change by promoting greener technologies.

Economically, the underwater data center is poised to enhance China’s competitiveness in the global tech arena. As data storage demands rise, this sustainable model could attract international investment and partnerships, fostering economic growth. Moreover, the integration of renewable energy sources, such as offshore wind farms, further underscores the potential for a more sustainable future in data management.

As China continues to innovate with its underwater data centers, the question remains: how will other countries respond to this groundbreaking approach, and what implications will it have for the future of global data infrastructure?