The U.S. nuclear sector is setting a precedent with the beginning of testing a new type of nuclear fuel enriched above the traditional 5% limit. Southern Nuclear, in collaboration with the Department of Energy (DOE) , has successfully loaded four test assemblies containing ADOPT® pellets developed by Westinghouse Electric Company into the Vogtle Unit 2 commercial reactor in Waynesboro, Georgia.
6% enriched nuclear fuel
Until now, commercial reactors in the U.S. have operated with fuel enriched between 3% and 5%. The introduction of this new fuel, which achieves 6% uranium-235, aims to extend operating cycles from 18 to 24 months, increase energy generation, and optimize reactor performance.
This type of fuel, in addition to its higher fissile concentration, includes additives such as chromium and alumina, designed to improve efficiency and safety during operation. The pellets were produced from highly enriched uranium oxide powder, initially processed by the Idaho National Laboratory.
A breakthrough that redefines operational efficiency
The new fuel is part of the DOE’s Accident Tolerant Fuel Program, which aims to modernize the nuclear fuel cycle while reducing operating costs and improving overall plant safety.
By requiring fewer replacement parts and offering greater power per charge, it is also expected to generate less nuclear waste in the long term.
Unit 2 of the Vogtle plant will be the testing site for the next four and a half years, during which the fuel’s performance will be evaluated cycle after cycle. Once the process is complete, exhaustive tests will be conducted to determine its feasibility for large-scale implementation at other facilities in the country.
Pete Sena, president of Southern Nuclear, noted that this progress strengthens Georgia’s position to meet growing energy demand.
Our goal is to operate our units for longer periods with increased production, and with more enriched fuel, we are even better positioned to meet Georgia’s growing energy demand.
he stated.
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Source and photo: U.S. Department of Energy
