The history and future of civilian nuclear power afloat

December 10, 2021, 2:35PMNuclear NewsGail H. Marcus and Steven M. Mirsky

In the early days of the development of nuclear power, a broad range of nuclear technologies and applications were explored. Among these developments were the use of nuclear propulsion for ships, both military and civilian, as well as a floating nuclear power plant. While the use of nuclear power for naval vessels, including submarines and surface ships, continued, most of the civilian uses of nuclear power on the water were ultimately terminated.

Recently, however, there has been a resurgence of interest in both floating nuclear power plants and the use of nuclear propulsion in the civilian sector. The renewed interest makes this a particularly timely moment to recount the initial developments in this area. Some of the early civilian nuclear vessels were discussed in two sessions during the June 2021 ANS Annual Meeting, “NS Savannah History” and “History of Non-­Naval Nuclear Ship Power.” This article draws on the presentations from those sessions, the second of which was cochaired by the authors, as well as on other studies of the history of nuclear power.

The U.S. Army’s Deactivated Nuclear Power Plant Program

November 24, 2021, 2:30PMNuclear Newsthe U.S. Army Corps of Engineers, Baltimore District, Deactivated Nuclear Power Plant Program staff
The Sturgis is towed from the Galveston, Texas, pier to the shipping channel on September 25, 2018, as it heads toward Brownsville, Texas, for final shipbreaking and recycling. Over the past three years in Galveston, the U.S. Army Corps of Engineers has been implementing the challenging and complex effort to decommission the MH-1A—the deactivated nuclear reactor that was onboard the Sturgis vessel.

The U.S. Army Corps of Engineers (USACE), Baltimore District, is home to the North Atlantic Division’s Radiological Health Physics Regional (RHPR) Center of Expertise, which is leading the decommissioning of Army reactors.

From 1956 to 1976, the Army’s nuclear power program operated several small nuclear reactors to confirm the feasibility of their meeting military power needs on land. Three Army reactors were deactivated in the 1970s and placed into safe storage awaiting future decommissioning.