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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Nuclear Science and Engineering
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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|Radioisotope Power Systems
Monday, May 5, 2025|10:00–11:40AM CDT|Salon EF (Marriott)
Session Chair:
Carl E. Sandifer (NASA Glenn Research Center)
Session Organizer:
Track Organizer:
Harold Gerrish (NASA Marshall Space Flight Center)
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Status of Current Radioisotope Thermoelectric Generator Programs at L3Harris Technologies
10:00–10:25AM CDT
Leo Gard (L3Harris), Andrew Lane (L3Harris)
Paper
European Americium Radioisotope Power Systems, Missions and Applications
10:25–10:50AM CDT
Richard M. Ambrosi (Univ. Leicester), Alessandra Barco (Univ. Leicester), Ramy Mesalam (Univ. Leicester), Hannah Sargeant (Univ. Leicester), Emily Jane Watkinson (Univ. Leicester), Chris Bicknell (Univ. Leicester), Tony Crawford (Univ. Leicester), Rob Tute (Univ. Leicester), Kris Bell (Univ. Leicester), Gareth Bustin (Univ. Leicester), James Pearson (Univ. Leicester), Charlotte Bouldin (Univ. Leicester), Roisin Speight (Univ. Leicester), Duncan Ross (Univ. Leicester), Pierre Coquay (ESA), Christophe Fongarland (ESA), David Le Falcher (ESA), Tim Tinsley (National Nuclear Laboratory), Mark Sarsfield (National Nuclear Laboratory), Kevin Simpson (European Thermodynamics Ltd), Richard Tuley (European Thermodynamics Ltd), Marie-Claire Perkinson (Airbus), Aled Richings (AWE), Tony Warkup (AWE), Dan Green (AWE), Timothy Paget (AWE), Matthew Higginson (AWE), Joe Mahmoud (AWE), Chris Gilligan (AWE), Piers Slater (Reef Origin), Frederic Lattwein (Ariane Group), Salvatore Oriti (NASA Glenn Research Center), Ernestina Wozniak (NASA Glenn Research Center), Steven R. Oleson (NASA Glenn Research Center), Elizabeth Turnbull (NASA Glenn Research Center), Scott Wilson (NASA Glenn Research Center), Paul C. Schmitz (Power Computing Solutions Inc.), Daniel Kelly (Johns Hopkins APL), Jessica Leung (Johns Hopkins APL), Timothy Erickson (Johns Hopkins APL), Steven Arnold (Johns Hopkins APL), Paul Ostdiek (Johns Hopkins APL), Fermin Navarro-Medina (Univ. of Vigo), Carlos Ulloa-Sande (Univ. of Vigo), Pablo Fernandez-Miaja (Univ. Oviedo), Manuel Arias-Perez d. Azpeitia (Univ. Oviedo)
Update on Stirling Radioisotope Power Systems Development at NASA Glenn Research Center
10:50–11:15AM CDT
Matthew D. Stang (NASA Glenn Research Center), Tyler Steiner (NASA Glenn Research Center), Daniel Goodell (NASA Glenn Research Center), Ernestina Wozniak (NASA Glenn Research Center)
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