IAEA TECDOC Series Technological Obsolescence Management of Nuclear Power Plants

Operating nuclear power plants confront aging challenges through proactive obsolescence management that prioritizes safety and uninterrupted operation. Real-world examples, practical insights, and lessons learned—including the role of regulatory oversight—reveal effective strategies for navigating technological evolution. A proactive obsolescence management programme enables operating nuclear power plants to anticipate obsolescence challenges and develop effective solutions without compromising plant operation or safety. This publication presents a collection of practices and experiences related to establishing and implementing such programmes. It highlights lessons learned during implementation and examines the role of regulatory bodies in obsolescence oversight. It also provides examples of successful, real world obsolescence solutions.