“The DOE has now cleared the final operations hold point for the reactor - also known as Groves-1 - allowing the facility to advance into its research, testing, and training phase. This will help Oklo prepare the teams an”
The test reactor, near Lockhart in Caldwell County, Texas reached first criticality in August, less than a year after groundbreaking. It is one of 11 advanced reactor projects selected by the US Department of Energy (DOE) in August 2025 for the Nuclear Reactor Pilot Program, a programme aiming to expedite the testing of advanced reactor designs under a DOE authorisation pathway. The DOE has now cleared the final operations hold point for the reactor - also known as Groves-1 - allowing the facility to advance into i
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