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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.
October 15, 2025|1:00–2:00PM (2:00–3:00PM EDT)
Available to All Users
In collaboration with Dominion Engineering, Inc.
High cumulative radiological exposure (CRE) can hinder outage efficiency, compromise personnel safety, and affect overall plant performance. Join us for this Supplier Showcase webinar to learn about recent advancements in ultrasonic cleaning, advanced filtration, and chemical decontamination technologies designed to reduce source term effectively. We’ll explore real world applications, review performance data, and share lessons learned to equip you with practical insights to help lower CRE and maintain safe, efficient operations.
President, Dominion Engineering, Inc.
Marks has been with Dominion Engineering, Inc. for over 25 years, specializing in nuclear plant chemistry, materials science, and long-term component degradation modeling. With a PhD in Chemical Engineering from the University of Maryland, he has contributed extensively to industry guidelines and research. As president, he oversees Dominion Engineering, a consulting, equipment, and services company serving the nuclear industry. He lives in McLean, Virginia, with his wife and enjoys running his daughter's Girl Scout troop.
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