Nuclear operators try to minimize losses of the shutdown by not replacing parts that are still workable until the shutdown. When you know of the impending shutd

Nuclear operators try to minimize losses of the shutdown by not replacing parts that are still workable until the shutdown. When you know of the impending shutdown, you can plan for the plant to be as EOL as possible. If you plan for long term use, parts are replaced gradually so that there's no big revamp pending.