US picks potential partners for using Cold War-era plutonium as fuel
The US Department of Energy has selected five companies, including Oklo, to enter advanced discussions about using surplus Cold War-era plutonium as nuclear reactor fuel. This plutonium, totaling approximately 20 metric tonnes, originates from dismantled nuclear warheads and is stored at secure facilities.

Briefing Summary
AI-generatedThe US Department of Energy has selected five companies, including Oklo, to enter advanced discussions about using surplus Cold War-era plutonium as nuclear reactor fuel. This plutonium, totaling approximately 20 metric tonnes, originates from dismantled nuclear warheads and is stored at secure facilities. The Trump administration's plan, initiated by a presidential order last May, aims to repurpose this material for advanced nuclear technologies, a move that has faced opposition from some Democrats due to proliferation and economic concerns. Oklo plans to develop the fuel in partnership with European company newcleo.
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5 extractedThe US Department of Energy has chosen five companies, including Oklo, to enter advanced talks about using surplus Cold War-era plutonium as nuclear reactor fuel.
Oklo plans to develop the fuel with newcleo, a European company aiming to build high-tech nuclear reactors.
Concerns have been raised that the plan to use surplus plutonium as fuel raises serious weapons proliferation concerns, makes little economic sense, and may adversely affect the nation’s defense posture.
Twenty metric tonnes of weapons-usable plutonium is enough for approximately 2,000 nuclear bombs.
The US government plans to make about 20 metric tonnes of plutonium from dismantled nuclear warheads available to US power companies.