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Conference Spotlight
2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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December 2025
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Fusion Science and Technology
November 2025
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Education and training to support Canadian nuclear workforce development
Along with several other nations, Canada has committed to net-zero emissions by 2050. Part of this plan is tripling nuclear generating capacity. As of 2025, the country has four operating nuclear generating stations with a total of 17 reactors, 16 of which are in the province of Ontario. The Independent Electricity System Operator has recommended that an additional 17,800 MWe of nuclear power be added to Ontario’s grid.
Advanced Reactor Safety (ARS) SPeaker
Dennis is a Consulting Engineer in GE Hitachi (GEH) Nuclear Energy, with over 42 years of Risk and Safety Analysis experience and 18 years at GEH. He technically oversees the PRAs for the BWRX-300, Versatile Test Reactor (VTR), and Natrium Reactors, and was the Technical Lead for the UK ABWR and PRISM PRAs. Prior to working for GEH, Dennis worked for 10 years as a nuclear utility PRA Engineer (Duke and San Onofre) and 14 years as a contractor/consultant. Dennis has authored or co-authored more than 150 publications, including the recently issued IAEA Safety Report 96 on Multi-unit PRA, and is currently supporting the development of an IAEA TECDOC on Multi-Hazard Assessments.
Dennis is being inducted into 2024 class of the National Academy of Engineering. Dennis is the ANS-Chairman of the ANS/ASME Joint Committee on Nuclear Risk Management (JCNRM), is a member of the ANS Standards Board, and has supported PRA standard development since 1999. Dennis was awarded the ANS Theos “Tommy” Thompson award for outstanding contributions to the field of nuclear reactor safety, October 2020, and is an ANS Fellow. Dennis received his MS and BS in Nuclear Engineering from University of Florida.
Last modified April 2, 2024, 6:03am PDT
