Plutonium from war becomes electricity for your home

Published on May 30, 2026 | Translated from Spanish

The U.S. Department of Energy has selected five companies, including Oklo, to transform plutonium from Cold War nuclear arsenals into fuel for advanced reactors. The goal is to generate electricity for homes and tech giants like Meta, reducing radioactive waste. For citizens, this initiative represents a step toward cleaner and more affordable energy, although the technical process is complex and requires decades of development.

Advanced nuclear reactor core assembly, workers in hazmat suits handling plutonium fuel pellets with robotic arms, spent warhead components being disassembled in background, glowing blue Cherenkov radiation from submerged fuel rods, control room monitors displaying power grid distribution to suburban homes and Meta data centers, industrial safety barriers, yellow radiation warning signs, metallic reactor vessel with complex piping, photorealistic technical illustration, bright sterile cleanroom lighting, sharp focus on fuel assembly process, cinematic industrial atmosphere, ultra-detailed mechanical engineering visualization

How plutonium-to-energy conversion works ⚛️

The process involves taking weapons-grade plutonium, chemically stabilizing it, and mixing it with depleted uranium to create mixed oxide fuel. This material will be used in advanced fast neutron reactors, designed to burn long-lived isotopes. Oklo plans to install modular microreactors operating on this fuel, generating up to 50 MWe per unit. The technology aims to gradually eliminate stored plutonium, reducing proliferation risks and nuclear waste.

From nuclear warhead to phone charger, the journey of plutonium 🔄

So the same plutonium that could wipe out a city might now power your fridge or charge your neighbor's phone. Quite a career change for this element, going from the villain of the story to a model citizen producing electricity. But don't expect it to reach your home tomorrow: between permits, tests, and paperwork, the plutonium might retire before it even enters the plant.