The United States has been grappling with a significant plutonium surplus for decades, a remnant of Cold War-era nuclear arms production. Approximately 100 tons of this radioactive material were generated for atomic weaponry, and as stockpiles have diminished, the government has been tasked with securely storing it in high-security facilities.
In a progressive move, the Department of Energy (DOE) has announced its intention to collaborate with innovative startups to repurpose some of this plutonium. On Tuesday, the DOE revealed that it has identified five nuclear startups to negotiate the potential use of plutonium in their reactor designs, aiming to fuel a new generation of nuclear technology. This initiative comes after the DOE previously earmarked 34 tons of plutonium for disposal.
The selected startups include Oklo, Standard Nuclear, Shine Technologies, Flibe Energy, and Exodys Energy. Notably, Energy Secretary Chris Wright was formerly on Oklo's board but has since divested his shares to avoid conflicts of interest.
While plutonium can occur naturally, it is predominantly produced as a byproduct through the bombardment of non-fissile uranium with neutrons. The isotope formed has a half-life of 24,000 years, necessitating a proactive approach to its management.
Oklo is pioneering a reactor capable of utilizing both traditional uranium fuel and plutonium, which will be crucial for their initial reactor deployments. Exodys Energy is also developing a reactor that incorporates plutonium within mixed oxide fuel (MOX), which combines uranium and plutonium. Flibe Energy aims to create a reactor that operates using plutonium alongside other fission byproducts.
Currently, MOX fuel is produced in France, and although there were plans to establish a production facility in South Carolina, the previous administration halted the project due to budget overruns and delays. Oklo's partner, UK-based Newcleo, has expressed intentions to build its own MOX fabrication facility in proximity to the U.S. operations.
Despite the potential benefits, the initiative has raised security concerns. Critics, including Scott Roecker of the Nuclear Threat Initiative, emphasize the risks associated with using plutonium derived from nuclear weapons, advocating for its permanent disposal instead.
As the startups prepare for detailed negotiations with the government regarding the security measures and logistics of plutonium transportation, the future of nuclear energy could be significantly shaped by this initiative. Harnessing this surplus material may pave the way for safer, more sustainable nuclear power solutions moving forward.