Department of Energy Celebrates Fourth Criticality Ahead of July 4th Goal

Started by Marlin, Jul 06, 2026, 11:28

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department of energyidaho national laboratoryaalo-xreactor pilot program

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US Department of Energy Seal Logo

The Aalo-X advanced reactor achieved zero-power fueled criticality at Idaho National Laboratory, marking the fourth successful demonstration under the Department of Energy Reactor Pilot Program. This milestone exceeds the federal goal of three reactor startups by July 4. The project reached this stage eight months after breaking ground, demonstrating the current regulatory focus on accelerating the deployment of first-of-a-kind reactor designs.

QuoteEarly Saturday, as part of the U.S. Department of Energy Reactor Pilot Program, Aalo Atomics' advanced reactor design, Aalo-X, successfully completed a zero-power fueled criticality demonstration.

WASHINGTON—The U.S. Department of Energy celebrates yet another win for the American nuclear energy renaissance. Early Saturday, as part of the U.S. Department of Energy (DOE) Reactor Pilot Program, Aalo Atomics' test reactor, Aalo-X, successfully completed a zero-power fueled criticality demonstration. The experiment took place at Idaho National Laboratory and is the fourth DOE-authorized advanced reactor to achieve the criticality milestone, exceeding the July 4th goal outlined by President...

Read the full article at Energy.gov:
https://www.energy.gov/articles/department-energy-celebrates-fourth-criticality-ahead-july-4th-goal