The U.S. Maritime Administration (MARAD) is developing small modular nuclear reactors (SMRs) for use on commercial cargo vessels, officials said this month [1].
This initiative represents a strategic shift in marine energy intended to decouple the U.S. shipping fleet from volatile global fuel markets. By transitioning to nuclear power, the government aims to enhance national security and reduce the logistical risks associated with traditional refueling [2].
Transportation Secretary Sean P. Duffy said the program will partner with industry experts and "outside-the-box thinkers" to create a state-of-the-art energy source that cuts costs and bolsters national security [3]. The effort seeks to modernize the broader marine transportation system by integrating compact nuclear technology into the hulls of cargo ships [4].
To support the broader development of this technology, the Energy Department has awarded $94 million [5] to eight companies [6]. These funds are intended to fast-track the development of SMRs by resolving licensing hurdles, and supply chain bottlenecks that have historically stalled the construction of new nuclear plants [5].
Government officials said that the transition could specifically reduce reliance on fuel routes such as the Strait of Hormuz [7]. A spokesperson for the Transportation Department said the agency wants to put nuclear reactors on American cargo ships to ensure a more resilient supply chain [8].
While the project focuses on commercial application, the integration of nuclear power into the merchant marine fleet involves complex regulatory and safety frameworks. The current phase of the initiative focuses on evaluating the viability of SMR models before wide-scale deployment across the U.S. fleet [1].
“The U.S. Department of Transportation wants to put nuclear reactors on American cargo ships.”
The push for SMRs in commercial shipping is a geopolitical move to mitigate the 'chokepoint' risk of maritime fuel supplies. By replacing oil-based propulsion with nuclear energy, the U.S. reduces its vulnerability to regional conflicts in the Middle East and lowers the long-term operational costs of the merchant marine fleet.
