nuclear-news

A couple decades ago, the Union of Concerned Scientists (UCS) published what it called the “bathtub curve.” This curve charted the expected and observed performance of nuclear reactors from initial operation until final shutdown. The main finding of note was that when a reactor first comes online, typically there are a large number of problems as the operators learn the technology of that specific reactor, issues resulting from construction deficiencies surface, etc. After a shakedown period of a year or two, reactor operations typically settle down for quite a while, with most reactors operating relatively efficiently. But as time goes on, problems associated with reactor aging–components being exposed to extraordinarily high heat and radiation as well as the simple reality that all things mechanical break down over time–begin to materialize and safety issues begin to mount again.

As we have been seeing at reactors across the nation, especially those in…