Overview
- Valar Atomics routed electricity from its Ward250 microreactor to an Nvidia Blackwell chip during a live demonstration on Wednesday, using roughly 100 kilowatts to run a server and an Nvidia system.
- The Ward250 uses TRISO fuel and pressurized helium for high‑temperature gas cooling, a design the company says reduces the need for municipal water in data‑center cooling.
- Valar and Nvidia announced a collaboration to study a 30‑megawatt, closed‑loop 'AI factory' that the companies say would operate with near‑zero local water use, though that plan is exploratory and not yet finalized.
- Commercial deployment remains conditional on Nuclear Regulatory Commission licensing, wider TRISO/HALEU fuel production and further testing, and Valar is part of pending litigation that challenges aspects of federal licensing authority.
- The demonstration advances the DOE microreactor pilot goals and follows other pilot participants reaching criticality, but scaling to sustained, high‑power AI operations will depend on supply chains, regulatory approval and community acceptance.