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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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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.
Technical Session|Sponsored by RPD
Wednesday, November 20, 2024|3:15–5:00PM EST|Canaveral 3
Session Chair:
Guillaume L. Giudicelli (INL)
Alternate Chair:
Manit D. Shah
Session Organizer:
Zeyun Wu (Virginia Commonwealth Univ.)
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Comparative Analysis of Simplified Model for Simulating Flexible Operation in Small Modular Reactor
3:15–3:35PM EST
Inji Han (KEPCO Nuclear Fuel), Bum Hee Jo (KEPCO Nuclear Fuel), Seung Ryeol Yang (KEPCO Nuclear Fuel)
Paper
Assessment of Boron Concentration Requirement to Maintain Subcriticality After MINI-21 Reactor Shutdown
3:35–3:55PM EST
John Bess (JFoster & Assoc.), Gray Chang (JFoster & Assoc.), Pat Moo (JFoster & Assoc.), Julie Foster (JFoster & Assoc.)
The Analysis of Controlling Reactivity Based on Coolant Temperature for Soluble Boron-Free SMR Core
3:55–4:15PM EST
Na Yeon Seo (KEPCO Nuclear Fuel), Seong Ho Park (KEPCO Nuclear Fuel), Junggyu Lee (KEPCO Nuclear Fuel)
Evaluation of Core Characteristics of Soluble-Boron-Free Core and Boric-Acid Core SMRs
4:15–4:35PM EST
Jong Hoon Kim (KEPCO Nuclear Fuel), Bum Hee Jo (KEPCO Nuclear Fuel), Jin Sun Kim (KEPCO Nuclear Fuel), Gong Hoon Bae (KEPCO Nuclear Fuel)
Evaluation of Xenon Induced Reactivity Insertion Allowance for Control Rod Withdrawal Accident Analysis in Soluble Boron-Free Innovative SMR Core
4:35–4:55PM EST
Seunghwan Jun (KEPCO Nuclear Fuel), Bum Hee Jo (KEPCO Nuclear Fuel), Hae Chan Lee (KEPCO Nuclear Fuel)
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