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Found a bit on the status of development:

Generation IV reactor - Wikipedia, the free encyclopedia

Generation IV reactors (Gen IV) are a set of theoretical nuclear reactor designs currently being researched. Most of these designs are generally not expected to be available for commercial construction before 2030. Current reactors in operation around the world are generally considered second- or third-generation systems, with most of the first-generation systems having been retired some time ago. Research into these reactor types was officially started by the Generation IV International Forum (GIF) based on eight technology goals, including to improve nuclear safety, improve proliferation resistance, minimize waste and natural resource utilization, and decrease the cost to build and run such plants.

So it is still 20 years off (cue xkcd reference).

While on this topic, I would like to point out something else that often crops up among those entusiastic for this technology (I was one once):
Generation IV reactor - Wikipedia, the free encyclopedia

100-300 times more energy yield from the same amount of nuclear fuel [4]

While true it is also misleading if the reader thinks "Woo-hoo, lots and lots of energy!" as this is not related to EROI.

Sweden's finest (and perhaps only) collaborative, leftist e-newspaper Synapze.se

by A swedish kind of death on Wed Dec 7th, 2011 at 02:59:43 PM EST
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