What is the significance of Valar Atomics powering Nvidia’s Blackwell AI chips with a microreactor, according to the news?

According to the news, it was 'the first time a small reactor powered a data center,' marking a historic demonstration of using a nuclear microreactor — specifically Valar’s helium-cooled high-temperature reactor — to directly power advanced AI computing hardware, namely Nvidia’s latest Blackwell architecture.

How does Nvidia’s DSX data center design aim to reduce water use, and what role does Valar’s reactor play in that effort?

Nvidia’s DSX data center design uses 'closed-loop liquid cooling,' a method it says can reduce facility-cooling water consumption 'from roughly 2.6 million gallons per megawatt per year to near zero'; Valar’s partnership contributes by providing a 'behind-the-meter, waterless advanced nuclear system' — its helium-cooled microreactor — to power such AI infrastructure without relying on water-intensive conventional cooling or grid sources.

Valar nuclear startup partners with Nvidia on data center aiming to conserve water

Jul 1, 2026

Valar Atomics partnered with Nvidia to power a Utah data center using a helium-cooled nuclear microreactor, aiming to eliminate water consumption for AI infrastructure. The project supports Department of Energy goals to demonstrate small reactor viability by July 4.

reuters

2026-06-01

Fluence Shares Surge on Design for Nvidia AI Data Center Factory

2026-07-01

Valar nuclear startup partners with Nvidia on data center aiming to conserve water

Valar nuclear startup partners with Nvidia on data center aiming to conserve water

FAQ