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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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Latest News
NEA report calls for more accurate data on SNF heat decay
The OECD Nuclear Energy Agency has issued a report calling for more-detailed information on tracking the decay heat of spent nuclear fuel from light water reactors. According to the NEA, the report highlights the increasing importance of accurate decay heat estimations due to evolving fuel characteristics, including higher initial fuel enrichment, increased burn-up rates, and extended reactor cycle lengths.
The report, Summary of the NEA Assessment on Spent Nuclear Fuel Decay Heat for Light Water Reactors, summarizes the findings of a subgroup of the NEA’s Working Party on Nuclear Criticality Safety (WPNCS), which ran from January 2022 to January 2024.
Westinghouse Electric Company is the world's leading supplier of new nuclear plants, products and technologies. We provide our utility customers around the world with the most reliable, dependable nuclear power plants, nuclear fuel, plant automation and operating plant products and services. Our AP1000© reactor is the only operating Generation III+ reactor with fully passive safety systems, modular construction design and has the smallest footprint per MWe on the market. Our AP300™ SMR, which launched this year, is single-loop pressurized water reactor that is based on the proven, licensed AP1000 technology. In addition to these advanced LWRs, Westinghouse is also developing non-traditional nuclear technologies in order to meet the needs of diverse and evolving global markets. Specifically, the Westinghouse eVinci™ microreactor is designed to provide approximately 5 megawatts of electricity / 15 megawatts of thermal power 24 hours a day, 7 days a week for eight-plus years without refueling. The Westinghouse Lead-cooled Fast Reactor is a utility-scale (450 MWe) Generation IV plant designed to best complement advanced passive LWRs through enhanced application versatility that combines flexible cost-competitive electricity, high-temperature heat and the capability to support a closed fuel cycle. Our comprehensive and innovative technology portfolio creates a blueprint for a carbon-free ecosystem that serves communities large and small with reliable, cost-effective electricity, district and process heat, and water desalination.
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