Research & Development

INL Chooses Five Teams To Develop Marvel Test Microreactor

By David Dalton
8 December 2025

Plant will be connected to microgrid and used for demonstration

INL Chooses Five Teams To Develop Marvel Test Microreactor
The unit will be built at the INL’s transient reactor test facility. Courtesy INL.
Idaho National Laboratory (INL) has chosen five teams for its Marvel project to develop a sodium-potassium-cooled microreactor designed to test microreactor applications, create regulatory processes and explore electrical and nonelectrical uses.

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