Friday - June 19, 2026
Department of Energy Celebrates Second Advanced Reactor Achieving Criticality
June 19, 2026
WASHINGTON, June 19 -- The U.S. Department of Energy issued the following news release on June 18, 2026:

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Department of Energy Celebrates Second Advanced Reactor Achieving Criticality

Today, as part of the U.S. Department of Energy Reactor Pilot Program, Valar Atomics' advanced reactor design, Ward 250, successfully completed a zero-power fueled criticality demonstration.

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The U.S. Department of Energy (DOE) today celebr . . .

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