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Idaho National Laboratory: MARVEL reactor gets federal safety approval
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Fusion42 · 6 October 2026 · Fusion42 review
Idaho National Laboratory has received federal safety approval for the primary coolant system of its MARVEL microreactor, enabling a stable nuclear chain reaction and moving the project toward initial testing and operation in December. This marks a significant step towards advancing smaller-scale nuclear power technology with the potential to power up to 10 homes.
This Wire brief sits within Fusion42's coverage of Clean Energy, and 2 sources have reported it.
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You have a rare chance to enter a nuclear power market reshaping around microreactors. The approved cooling system signals a pathway to operational demonstration that might open doors for early suppliers and technology partners.
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2 sources · 6 Oct 2026
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