Start-up Valar says small nuclear reactors can be used with closed-loop cooling systems to reduce data centre power, water needs

July 1 : Valar Atomics, a nuclear power startup, said on Wednesday it is partnering with Nvidia to develop a small data center in Utah that the companies claim will show how…

Valar Atomics ran an Nvidia Blackwell AI chip off a nuclear microreactor on July 1, 2026, a US first backed by $450M in funding at a $2B valuation.