Private microreactor reaches critical milestone, accelerating U.S. nuclear roadmap

TL;DR Summary
The Energy Department says Antares Nuclear’s microreactor at Idaho National Laboratory has reached criticality, marking the first private company to achieve this milestone under a Trump-era pilot program to accelerate advanced reactors. Antares aims to begin electricity generation by late 2027 and deploy systems by 2028, as regulators push to speed development amid ongoing safety debates and a broader push to expand U.S. nuclear power.
Topics:business#antares-nuclear#criticality#idaho-national-laboratory#microreactor#nuclear#technology
- Energy Department says advanced nuclear reactor first to reach critical milestone PBS
- Privately developed Mark-Zero reactor goes critical at Idaho National Laboratory, DOE says KBOI
- First advanced reactor criticality in the US announced at INL East Idaho News
- US Says Antares’ Small Nuclear Reactor Reaches ‘Criticality’ Bloomberg.com
- Small modular nuclear reactor reaches criticality in first test Ars Technica
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