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Fusion Science and Technology
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Getting back to yes: A local perspective on decommissioning, restart, and responsibility
For 45 years, Duane Arnold Energy Center operated in Linn County, Ia., near the town of Palo and just northwest of Cedar Rapids. The facility, owned by NextEra Energy, was the only nuclear power plant in the state.
In August 2020, a historic derecho swept across eastern Iowa with winds approaching 140 miles per hour. Damage to the plant’s cooling towers accelerated a shutdown that had already been planned, and the facility entered decommissioning soon after, with its fuel removed in October of that year. Iowa’s only nuclear plant had gone off line.
Today the national energy landscape looks very different than it did just six short years ago. Electricity demand is rising rapidly as data centers, artificial intelligence infrastructure, advanced manufacturing, and electrification expand across the country. Reliable, carbon-free baseload power has become increasingly valuable. In that context, Linn County has approved the rezoning necessary to support the recommissioning and restart of Duane Arnold and is actively supporting NextEra’s efforts to secure the remaining state and federal approvals.
Marina Rizk, Nicholas R. Brown, G. Ivan Maldonado
Fusion Science and Technology | Volume 82 | Number 4 | May 2026 | Pages 917-922
Research Article | doi.org/10.1080/15361055.2025.2533079
Articles are hosted by Taylor and Francis Online.
Reduced-activation ferritic-martensitic steel (RAFM), such as F82H, is used in the Fusion Energy System Studies–Fusion Nuclear Science Facility as a structural material for the blanket. Previous research has identified significant issues with corrosion and tritium permeation due to the liquid metal Pb-17Li. To address these issues, aluminum or aluminum-based coatings have been proposed. This study performs a neutronics analysis of a blanket incorporating an aluminum-based coating layer, evaluating parameters such as tritium breeding ratio, nuclear heating (neutron and photon), and radiation damage. Low volume percentages (0.1% to 1.25%) of aluminum or FeAl are mixed with RAFM steel, and the analysis is conducted using OpenMC with the FENDL-3.2b library. The results show that the impact of the aluminum-based coating on these parameters is minimal, with changes within 0.6% compared to the non-coated case. Additionally, given that aluminum contains a long-lived isotope, Aluminum-26, an activation analysis was performed to evaluate its specific activity.
