A drone that runs for 30 years changes the math entirely
Somewhere between the long half-lives of radioactive isotopes and the long ambitions of military planners, a quiet convergence is taking shape. DARPA's Project Omega is attempting to transform the United States' vast stockpile of nuclear waste into batteries capable of powering drones and satellites for thirty uninterrupted years — not through chemical storage, but by converting radiation directly into electricity. The effort, funded at $3.37 million and anchored by a consortium of national laboratories and defense contractors, asks an old question in a new form: what becomes possible when the burden of energy replenishment is removed entirely from the equation?
- Military drones and satellites are fundamentally constrained by battery life, leaving autonomous systems dependent on resupply chains that break down in remote or contested environments.
- DARPA's Project Omega is racing to convert nuclear waste — over 100,000 metric tons sitting in legal and regulatory limbo across 52 U.S. reactor sites — into compact radioisotope power cells producing electricity for decades.
- A proof-of-concept prototype targeting more than 10 watts per kilogram is expected by early 2027, with Strontium-90 chosen as a safer alternative to the Plutonium-238 that has long powered deep-space missions.
- Significant engineering obstacles remain: conversion efficiency, radiation damage to surrounding components, extreme-environment reliability, and the safety protocols required before any such battery could be deployed in the field.
- If successful, the technology would not merely extend drone endurance — it would fundamentally reframe what persistent autonomous military presence looks like, raising questions that reach well beyond engineering.
The United States military faces a deceptively simple problem: how to keep drones and satellites running for years without ever recharging them. DARPA's answer may lie in the nation's nuclear waste storage facilities, where more than 100,000 metric tons of radioactive material sit in expensive, contested limbo across 52 reactor sites.
Project Omega, recently awarded $3.37 million in DARPA funding, is developing radioisotope batteries that convert radiation directly into electricity — no chemical reactions, no moving parts, no degradation over time. Founder Stafford Sheehan draws a clean analogy: solar cells convert sunlight into electricity; his company's devices do the same with radiation. The target is a power source capable of keeping a drone airborne for thirty continuous years. Small prototypes are already running, with DARPA-spec versions expected by early 2027.
The fuel is Strontium-90, extracted from existing waste stockpiles rather than newly produced material — a choice that simultaneously addresses a disposal problem and avoids the complications of Plutonium-238, which has powered spacecraft for decades but carries greater regulatory weight. The batteries layer solid-state isotope blocks with semiconductors, generating current when exposed to radiation across a wide range of temperatures — a persistent weakness of conventional batteries in harsh military environments.
The project draws on a consortium that includes Morgan State University, Pacific Northwest National Laboratory, Northrop Grumman, ARA, and Widetronix. Researchers are advancing through increasingly realistic test scenarios, though conversion efficiency, radiation effects on nearby components, and long-term safety protocols all require extensive validation before deployment.
The engineering question — can a battery last thirty years? — is expected to find its first real answer sometime in 2027. But the implications extend further: a drone fleet capable of operating for decades without resupply would be a fundamentally different kind of military instrument, one that quietly reshapes the meaning of autonomous presence in surveillance, logistics, and conflict alike.
The United States military has a problem that sounds like science fiction but is very real: how to keep drones and satellites operating for years without ever plugging them in. The answer, according to researchers working with the Defense Advanced Research Projects Agency, might be hiding in the nation's nuclear waste storage facilities.
DARPA's "Rads to Watts" initiative is funding the development of radioisotope batteries—compact devices that convert radiation directly into electricity, bypassing the chemical reactions that power conventional batteries. One company leading this effort, Project Omega, recently received $3.37 million to build a proof-of-concept generator capable of producing more than 10 watts per kilogram. The goal is audacious: create a power source that could keep a drone flying continuously for 30 years without a single recharge.
Stafford Sheehan, who founded Project Omega, frames the technology in straightforward terms. "Solar cells directly convert sunlight into electricity," he explained. "Ours directly convert radiation into electricity." The company is already running small prototype devices, with versions specifically designed to meet DARPA's performance targets expected to arrive in early 2027. The batteries work by layering solid-state isotope blocks with semiconductors that generate electricity when exposed to radiation—no moving parts, no chemical degradation over time.
The fuel source is abundant and otherwise problematic. Across 52 reactor locations in the United States, more than 100,000 metric tons of nuclear waste sit in storage, a stockpile that has become the subject of expensive legal disputes and regulatory gridlock. Project Omega's approach extracts usable isotopes from this existing waste, converting it into two products: fuel for reactors and power isotopes for devices. The company plans to use Strontium-90, which researchers describe as less hazardous than the Plutonium-238 that has powered spacecraft and deep-space missions for decades.
For military planners, the implications are substantial. A drone capable of operating for three decades on a single power source would fundamentally reshape how the armed forces think about logistics, deployment duration, and autonomous operations. Current unmanned systems depend on regular battery replacements and charging infrastructure, constraints that limit their usefulness in remote or contested environments. A radioisotope battery that functions across extreme temperatures—a persistent problem for military hardware in harsh climates—would remove one of the major barriers to extended autonomous missions.
The project involves a consortium of partners: Morgan State University, Pacific Northwest National Laboratory, Northrop Grumman, ARA, and Widetronix. Researchers are moving through increasingly realistic testing scenarios, with a minimally viable prototype expected by early 2027. But significant hurdles remain. Conversion efficiency, the effects of radiation on surrounding components, long-term reliability, and the safety protocols required for deployment all demand extensive evaluation before any battery reaches an actual drone or satellite.
If the technology works as intended, it would represent a genuine shift in what autonomous systems can accomplish. A fleet of drones capable of operating for decades without human intervention or resupply would be a different kind of military tool entirely—one that raises questions not just about engineering, but about what persistent autonomous presence means for surveillance, for conflict, and for the future of unmanned warfare. For now, researchers are focused on the simpler question: can they make a battery that lasts 30 years? The answer will arrive sometime next year.
Citações Notáveis
Solar cells directly convert sunlight into electricity. Ours directly convert radiation into electricity.— Stafford Sheehan, CEO and founder of Project Omega
We take nuclear waste, we recycle it into two products: one is fuel for reactors, the other are power isotopes.— Stafford Sheehan, Project Omega
A Conversa do Hearth Outra perspectiva sobre a história
Why does a 30-year battery matter so much for drones? Isn't that just a nice-to-have?
It's not about luxury. Right now, drones need regular charging or battery swaps. That means logistics, infrastructure, human presence. A drone that runs for 30 years changes the math entirely—you could deploy something and essentially forget about it.
But doesn't that sound dangerous? A drone that just keeps operating indefinitely?
That's the real question underneath this. The technology itself is just physics. What it enables—persistent autonomous systems that don't need human oversight—that's where the weight is.
Why use nuclear waste instead of making fresh radioactive material?
Two reasons. First, there's already 100,000 metric tons of it sitting in storage, creating legal and financial headaches. Second, using existing waste is politically easier than building new nuclear facilities. You're solving two problems at once.
Is Strontium-90 actually safer than Plutonium-238, or is that just marketing?
It's genuinely less hazardous in certain ways, but "safer" is relative. You're still working with radioactive material. The real safety question isn't the isotope choice—it's whether these batteries can be deployed without creating new risks.
When do we actually see these in the field?
Not for years. They need a working prototype first, then testing, then military certification. Early 2027 is when they hope to have something that proves the concept works. After that, it's a long road to actual deployment.