Valar Atomics Unveils Breakthrough Atomic Reactor Powering AI Chip

Valar Atomics has made headlines by operating a nuclear reactor using a AI-powered chip. The startup claims to be the first of its kind to generate electricity from nuclear power.

With its reactor, known as Ward 250, Valar Atomics demonstrated the ability to power an Nvidia Blackwell chip. “This is the first encounter between advanced nuclear technology and AI—two technologies that will change the next century,” Valar Atomics stated in a LinkedIn post.

Additionally, Valar Atomics announced a partnership with Nvidia to develop AI systems powered by nuclear energy. This collaboration is made possible through the combination of two systems that do not require water: “Electricity generation without water and AI cooling without water.”

Valar Emphasizes a High-Temperature Reactor

Ward 250 is a High-Temperature Gas-Cooled Reactor (HTGR) that operates using Tristructural-Isotropic (TRISO) fuel. This consists of small pellets containing high-assay low-enriched uranium (HALEU). The reactor functions at a remarkable temperature of 750 degrees Celsius and is cooled by helium gas.

The five-megawatt reactor was built in California, disassembled into eight modules, and transported by the US Air Force to Utah in February of this year, where it was reassembled for its demonstration. Recently, the reactor achieved criticality for the first time.

Valar Atomics is one of a few startups in the United States focusing on nuclear power. This controversial energy form is experiencing a renaissance due to the boom in Artificial Intelligence (AI). The requisite data centers being constructed require substantial energy. Major corporations like Google, Meta, and Microsoft have secured capacities from newly operational or to-be-built nuclear power plants.