China Dives into Underwater Data Centers: A Sustainable Solution for AI's Growing Demands

Reviewed byNidhi Govil

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A Chinese company is set to launch an underwater data center off Shanghai's coast, aiming to reduce energy consumption and meet the increasing demand for data storage driven by AI advancements.

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China's Underwater Data Center Initiative

In a groundbreaking move to address the escalating energy demands of data centers, a Chinese company is preparing to submerge a capsule of servers off the coast of Shanghai in mid-October. This innovative project aims to harness the natural cooling properties of ocean currents, potentially reducing energy consumption for cooling by up to 90% compared to traditional land-based data centers

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The Driving Force: AI and Increasing Data Demands

The surge in artificial intelligence (AI) applications has accelerated the demand for data storage and computing infrastructure globally. This has created an urgent need for more efficient and sustainable solutions to power the world's websites and apps. Traditional data centers on land rely on energy-intensive cooling systems, contributing significantly to their carbon footprint

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Technical Innovations and Challenges

The underwater data center, developed by maritime equipment firm Highlander in collaboration with state-owned construction companies, features a large yellow capsule designed to withstand the harsh marine environment. Key technical aspects include:

  1. A protective coating containing glass flakes to shield the steel capsule from saltwater corrosion.
  2. An elevator system connecting the main pod to an above-water segment for maintenance access.
  3. Power supply primarily from nearby offshore wind farms, with over 95% of energy coming from renewable sources

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However, the project faces significant challenges, including complex internet connectivity between offshore and mainland facilities, and potential vulnerability to underwater sound wave attacks

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Environmental Considerations and Future Prospects

While underwater data centers offer promising energy-saving benefits, their ecological impact remains a subject of debate. The heat emitted by these facilities could potentially affect marine ecosystems, attracting certain species while repelling others. Highlander claims that independent assessments of their previous test projects showed acceptable temperature thresholds in surrounding waters

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Global Context and Commercial Viability

This initiative follows Microsoft's similar trial off the coast of Scotland in 2018, positioning China's project as one of the world's first commercial services of its kind. The underwater data center will serve clients such as China Telecom and a state-owned AI computing company, aligning with the Chinese government's broader push to reduce data centers' carbon footprint

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As the world grapples with the environmental impact of rapidly expanding digital infrastructure, underwater data centers present a potential solution. However, experts suggest that these facilities may complement rather than replace traditional data centers, serving niche segments of the market while research continues to address scaling challenges and long-term ecological effects

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