- Oklo has received U.S. Department of Energy startup authorization for its Groves Reactor, allowing the company to load nuclear fuel, conduct startup testing, and proceed toward first criticality.
- In just over 10 months, Oklo progressed from groundbreaking to receiving DOE startup authorization for its first reactor at the Groves site.
- Groves is a low-power test reactor designed to demonstrate reactor design, build, and operations, and to establish operating experience needed to support future isotope production facilities.
- The project advances Oklo’s plans to establish domestic production of critical isotopes for potential use in cancer care, manufacturing, scientific research, space exploration, and national security.
- "This facility marks the fastest time that we are aware of to go from greenfield to substantial completion for a full-scale, privately funded and sited reactor in history," said Oklo co-founder and CEO Jacob DeWitte.
Oklo has achieved a significant milestone by receiving startup authorization from the U.S. Department of Energy (DOE) for its Groves Reactor, a low-power test reactor designed to demonstrate reactor operations and support future isotope production facilities.124
This authorization, part of the DOE Reactor Pilot Program, allows Oklo to load nuclear fuel, conduct startup testing, and move towards first criticality. In just over 10 months, Oklo progressed from groundbreaking to this authorization, showcasing its rapid development capabilities.3
"This facility marks the fastest time that we are aware of to go from greenfield to substantial completion for a full-scale, privately funded and sited reactor in history," said Oklo co-founder and CEO Jacob DeWitte. The Groves Reactor is pivotal for Oklo's plans to establish domestic production of critical isotopes, which are essential for cancer care, manufacturing, scientific research, space exploration, and national security.56
The startup authorization follows a rigorous readiness review, confirming that Oklo has achieved the necessary engineering, organizational, and operational readiness to safely receive fuel and begin operations. Principal Deputy Assistant Secretary for Nuclear Energy Mike Goff expressed excitement about Oklo's progress, stating, "The U.S. Department of Energy is excited to see another Reactor Pilot Program participant receive authorization."
Future projects will build on the established systems and qualified suppliers developed through the Groves Reactor, enhancing Oklo's confidence in the siting, building, and commissioning of its commercial reactors.
“Oklo achieved the authorization in just over 10 months from groundbreaking, a timeline CEO DeWitte called the fastest for a full-scale privately funded reactor. Separately, payments firm Stripe is in talks to acquire AI startup OpenRouter for roughly $10 billion.”
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