I have often thought we (the US) should start building new plants. If for no better reason then that at some point I'm certain we'll need replacements for our current aging ones. I have to plead ignorance on the topic of designs and just how much an in place reactor can be upgraded and maintained as well as if the efficiency has increased through the years. But given that our newest plant was started in the mid-1970's I really have to think that there have been advances since then.
If we are going to have them anyway, why not have the most efficient model with all the latest safety bells and whistles?
-MJ
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