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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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!
Latest Magazine Issues
Jun 2025
Jan 2025
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Nuclear Science and Engineering
August 2025
Nuclear Technology
July 2025
Fusion Science and Technology
Latest News
Nuclear fuel cycle reimagined: Powering the next frontiers from nuclear waste
In the fall of 2023, a small Zeno Power team accomplished a major feat: they demonstrated the first strontium-90 heat source in decades—and the first-ever by a commercial company.
Zeno Power worked with Pacific Northwest National Laboratory to fabricate and validate this Z1 heat source design at the lab’s Radiochemical Processing Laboratory. The Z1 demonstration heralded renewed interest in developing radioisotope power system (RPS) technology. In early 2025, the heat source was disassembled, and the Sr-90 was returned to the U.S. Department of Energy for continued use.
ICRS 14/RPSD 2022 speaker
Eric Williams is the Vice President of Engineering at TerraPower. In this role, he oversees the engineering associated with TerraPower’s advanced reactors and medical isotope programs. He works closely with the senior program managers to provide design, analysis and testing to meet project objectives. Williams has 22 years of experience in engineering and has spent the last 15 years developing nuclear power plant designs, with an emphasis on safety.
Before coming to TerraPower, Williams spent four years at B&W mPower developing a new small modular reactor design and worked to develop the safety of the plant and take the design through pre-licensing with the U.S. Nuclear Regulatory Commission. He also led the development of an Integrated Systems Test facility, which was a small-scale, electrically powered version of the nuclear power plant used to demonstrate the safety characteristics of the plant during simulated accident scenarios.
Earlier in his career, Williams worked on another new reactor design where he led a team that analyzed severe accidents. He developed the analysis and documentation needed to license the design and took the severe accident analysis through the licensing process.
Prior to working on new nuclear reactor designs, Williams worked on making the current fleet of nuclear power plants in the U.S. more efficient by upgrading their equipment and modernizing their systems. He worked directly with electric power utilities and visited operating nuclear power plants to understand the issues they faced and helped develop solutions.
Williams holds a Bachelor of Science in Mechanical Engineering from the University of Florida, a Master of Business Administration from Lynchburg College and a Professional Engineer license.
Last modified August 24, 2022, 5:56am PDT
