U.S. Military Develops Nuclear-Powered Underwater Energy Network
The U.S. military's DEPTHS program aims to create a nuclear-powered underwater energy grid to support autonomous drones for 30 years. This initiative is pivotal for maintaining U.S. maritime superiority against growing naval capabilities from competitors like China.

The Defense Department's DEPTHS initiative, with a $7.5 million contract awarded to Zeno Power, aims to establish a nuclear-powered network on the ocean floor to power autonomous submarine drones. Utilizing strontium-90, the program seeks to enable long-term deployments without the need for resupply, marking a shift in U.S. defense strategy.
Notable partners including Blue Origin and Sunpower are developing Stirling converter technology essential for this project. While historical attempts to harness strontium-90 faced challenges, modern advancements could improve efficiency.
Regulatory approvals and safety measures for handling strontium-90 remain critical as Zeno works towards a 2027 demonstration. Success could redefine underwater operations, enhancing U.S. tactical advantages.




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