China Is Testing a Truck-Mounted ‘Nuclear Power Bank’ That Could Power AI Data Centres

Reflecto News | Technology & Energy | China

BEIJING — China is actively testing a prototype nuclear reactor compact enough to be carried on a truck, according to a leading scientist involved in the project .

The reactor, described as the “world’s first 10-megawatt vehicle-mounted nuclear power unit,” is being developed as a mobile “power bank” that could operate for decades without refuelling, according to Wu Yican, chief scientific adviser to the Institute of Nuclear Energy Safety Technology at the Hefei Institute of Physical Science .

The technology is being positioned as a solution to “battery anxiety” across a range of applications, including remote regions, island power, emergency backup, ship propulsion, space systems, and—critically—powering AI computing and data centres . An output of 10 MW would be sufficient to run a medium-sized AI data centre .

☢️ How It Works: A Truck-Sized Reactor

The prototype represents a radical departure from traditional nuclear power plants. According to Wu, the reactor is designed to be “approachable, flexible and intelligent”—capable of meeting diverse future energy demands while maintaining exceptional safety standards .

A 10 MW vehicle-mounted reactor is, however, distinct from China’s larger small modular reactors (SMRs), such as the Linglong One (ACP100) . That 125 MW reactor—designed for grid power—is nearing commercial operation in Hainan and is large enough to require permanent installation, though its design similarly emphasizes factory-built, modular construction .

The key innovation of China’s SMRs—including the truck-mounted version—lies in their integrated, modular design. Unlike traditional reactors, where primary components are distributed, the reactor core and cooling systems are combined into a single unit. This eliminates large primary coolant pipes, removing the risk of a Loss-of-Coolant Accident (LOCA) from a pipe break .

The design also incorporates passive safety systems that rely on natural forces like gravity and convection, allowing the reactor to cool itself without external power or operator intervention—a critical feature for mobile or remote deployment .

🔋 A ‘Nuclear Power Bank’ for the AI Era

The testing of a truck-mounted reactor is unfolding against the backdrop of surging electricity demand from artificial intelligence. New AI data centers are estimated to require 1 to 5 gigawatts of power—comparable to the output of a large nuclear plant. These facilities need constant, uninterrupted power, and a 10 MW unit could serve as a dedicated and reliable source .

Wu’s reference to “battery anxiety” underscores the limitations of current energy storage. A nuclear unit that fits on a truck and can power a data centre for decades without refuelling bypasses the intermittency issues of renewables and the logistics of fuel delivery, while also functioning as a direct replacement for diesel generators in backup applications .

🌍 Strategic and Commercial Implications

The truck-mounted reactor, if successfully deployed, would mark a significant strategic advance. A vehicle-mounted, factory-produced reactor could theoretically be deployed anywhere a truck can reach—without the need for the extensive on-site construction that defines conventional nuclear projects.

The pace of China’s progress stands in stark contrast to Western efforts. The Linglong One, for instance, received IAEA safety approval in 2016, began construction in 2021, and is now set for 2026 operation . In the United States, by contrast, no commercial SMR has yet begun construction, and the only NRC-permitted design (NuScale) saw its flagship project cancelled after years of delays and cost increases .

Larger strategic considerations also come into play. An operational mobile nuclear reactor would:

• Provide a rapidly deployable power source for emergency or military logistics;
• Offer a decarbonisation option for remote industrial sites lacking grid access;
• Create a new category of energy export, potentially undercutting Western SMR developers.

🔮 What Comes Next

The team behind the truck-mounted prototype is actively seeking opportunities for deployment . A demonstration project could emerge as a partnership with a technology firm or as part of China’s broader strategy for decarbonised, distributed energy.

Wu has stated that the development of next-generation nuclear systems is “in full swing,” with the core principle of ensuring safety “at the source” .

📋 Key Takeaways for Reflecto News Readers

Follow Reflecto News for continuous updates on advanced nuclear technology, Chinese energy innovation, and all breaking science news from around the world.

This article is the intellectual property of Reflecto News. Redistribution without attribution is prohibited.