A New Frontier for AI Infrastructure
As artificial intelligence drives a global race to build more computing power, China has unveiled one of the most unconventional solutions yet: the world’s first offshore wind-powered underwater data center.
The Shanghai Lingang Undersea Data Center, which entered operation in May, is located more than 10 kilometers off the coast of Shanghai and submerged approximately 10 meters beneath the ocean’s surface. Powered by a nearby offshore wind farm, the facility represents a new approach to one of the biggest challenges facing the AI era: how to supply the enormous energy and cooling demands of modern data centers.
Developed through a partnership between HiCloud Technology and China Communications Construction, the project has a planned capacity of 24 megawatts and received approximately 1.6 billion yuan (US$226 million) in investment.
Why Put a Data Center Underwater?
By placing servers underwater, operators can use the surrounding seawater for natural cooling, reducing overall power consumption by more than 20 percent compared with conventional land-based facilities.
The timing is significant. Data centers have become the physical backbone of the AI economy, but they are also among its most resource-intensive assets. Cooling systems alone can account for between 25 and 40 percent of a traditional data center’s electricity use. At the same time, growing concern is emerging over the sector’s freshwater consumption. A recent report from the United Nations University Institute for Water, Environment and Health warned that the global water footprint of data centers could reach 9.3 trillion liters annually by 2030.
China’s underwater approach seeks to address both challenges simultaneously. By combining renewable offshore wind power with seawater cooling, the project reduces electricity demand, minimizes freshwater use, and dramatically shrinks the land footprint required for large-scale computing infrastructure.
Built for the AI Era
Industry reports suggest the facility houses roughly 2,000 servers designed to support AI workloads, big-data processing, and next-generation digital services.
As governments and companies compete to attract AI investment, access to affordable energy, reliable cooling, and available land has become a strategic advantage. The challenge is especially acute as the world’s largest technology firms plan hundreds of billions of dollars in new AI infrastructure over the coming decade.
China’s underwater data center offers a glimpse of how future facilities may be designed—not simply as buildings, but as integrated energy systems that combine renewable power generation with innovative cooling solutions.
From Experiment to Commercial Reality
China is not the first country to experiment with underwater data centers. Microsoft’s Project Natick tested the concept off the coast of Scotland several years ago, demonstrating that submerged servers could operate reliably for extended periods.
The Shanghai project, however, is the first commercial-scale deployment directly integrated with offshore wind power. Experts say it demonstrates how China has moved rapidly from pilot projects to commercial implementation by combining industrial capacity, government support, and growing demand for AI infrastructure.
Environmental Questions Remain
Marine scientists note that underwater data centers could affect local ecosystems through heat discharge, sediment disturbance, or long-term maintenance activities. However, early assessments suggest such impacts are likely to be localized and manageable with proper monitoring.
As with offshore wind farms and other marine infrastructure projects, the long-term environmental footprint will depend on careful design, transparency, and ongoing oversight.
The Emerging Race to Power Intelligence
For years, the technology sector’s defining question was how to build smarter AI. Increasingly, the question is becoming where to put it—and how to power it.
The rapid expansion of artificial intelligence is forcing governments, utilities, and technology companies to rethink the relationship between computing, energy, water, and infrastructure. In that context, China’s underwater data center is more than an engineering experiment. It is an early signal of a future in which the race for AI leadership may be determined as much by access to sustainable infrastructure as by breakthroughs in software and silicon.
China’s answer, at least in this case, lies beneath the sea.
RELATED STORIES:
Follow SDG News on LinkedIn
