Pete C. wrote:
....
Nuclear energy is "green" energy, but it is not renewable. ...

Au contraire, me boy...

One can design/build a reactor w/ a breeding ratio unity even today.
Carter, unfortunately, canceled the large-scale demonstration project at
Oak Ridge along w/ the (previously mentioned more fully in another
response) marvelously short-sighted decision to ban
reprocessing/recycling of commercial fuel in the US.

The latter of those two decisions is still, unfortunately, in effect so
the only practical alternative available is the current "standard
design" advanced LWR's of the W and GE design. Unfortunately, also, the
long hiatus forced the other US vendors (CE and B&W) plus virtually all
of the manufacturing capability to close.

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