14-05-2025
Exclusive: Nuclear-battery maker with defense contracts raises $50 million
Zeno Power secured $50 million in its latest funding round. The nuclear-battery maker now plans to roughly double its workforce and do full-scale system demonstrations next year.
Why it matters: Energy is the chokepoint for so many national-security competitions. Persistent surveillance. Artificial intelligence. Troop wellbeing.
"With great power competition rising, the ocean floor, Arctic, and lunar surface are becoming the front lines of global security and economic progress — but they remain energy deserts," CEO Tyler Bernstein told Axios.
Follow the money: The Series B was led by Hanaco Ventures. Other backers include Seraphim, Balerion Space Ventures and Vanderbilt University.
The company's inked contracts with the U.S. Defense Department and NASA totaling tens of millions of dollars.
How it works: Zeno's batteries convert the decay of radioactive material into thermal and electrical power.
It showcased a prototype at Pacific Northwest National Laboratory.
It also locked in a strontium-90 fuel supply from the Energy Department. Applications range from subsurface operations on Earth to satellites in space.
The intrigue: John Richardson, a former chief of U.S. naval operations, joined Zeno's board of directors.
