Nvidia says European infrastructure companies are building AI data centers on its DSX reference design, which it says can cut cooling water use to almost zero. The closed-loop liquid cooling design releases heat through dry coolers instead of evaporating water. Nvidia also says a DSX tool can deliver the same AI output with up to 30% less electricity.
European infrastructure companies are building AI data centers on Nvidia's DSX reference design, the chipmaker said Wednesday at its GTC Berlin conference. Nvidia says the blueprint can cut cooling water use to almost zero.
The announcement came a day after Germany signed an AI partnership with Nvidia at a Berlin investment summit.
Nvidia calls these sites AI factories, data centers built to train and run AI models at scale. DSX is its reference design, a set of plans and software that treats chips, networking, power and cooling as a single system. The company first presented the platform at GTC Taipei on May 31, 2026.
How does DSX reduce water use in AI data centers?
The water savings depend on closed-loop liquid cooling. Coolant runs past the chips, then releases heat to the outside air through dry coolers instead of evaporating water. Nvidia said a two-gigawatt site built this way could save 54 million liters of water a day. Local weather determines whether extra cooling is needed on the hottest days, the company added.
How much electricity can DSX save?
Power efficiency is the other part of the pitch. Nvidia said a DSX tool called MaxLPS can produce the same AI output with up to 30% less electricity. London-based Nscale tested it on four racks of GB300 servers at its Iceland site. Nvidia said inference throughput rose 49% within the same 264-kilowatt power budget.
Nscale, which is also building a data center in Portugal, is using DSX to create digital models of both sites before construction. Its chief executive, Josh Payne, put the case in one line. “Europe’s AI ambitions demand that we make every megawatt count,” Payne said.
Which European companies are using DSX?
A wider group of European engineering firms is also designing parts for the platform. Siemens is simulating power, cooling and noise. Schneider Electric is publishing power and cooling designs, and Dassault Systèmes is building digital twins of Vertiv equipment. ABB, Siemens Energy, Hitachi Energy and Trane Technologies are also taking part.
In the United Kingdom, a trial with National Grid and cloud firm Nebius tested how a cluster of Nvidia chips responds to grid strain. Nvidia said the cluster cut its power draw by up to 40% during simulated grid events while critical work kept running.
Warren Barkley, who leads DSX product management at Nvidia, framed the effort as a question of energy use. “Europe’s technology leadership depends on how efficiently we turn power and infrastructure into intelligence,” Barkley said.
Nvidia did not say when the new features will be generally available. Several of its DSX operating software tools are currently in developer preview, and the company has not announced a timeline for moving them to wider release.
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