The whole whole process is self sustaining and can last for up to 40 years, producing electricity for only 5 cents per kilowatt hour, about half the cost of grid energy.
Toshiba expects to install the first reactor in Japan in 2008
well, we'll find out next month...
but more importantly. half the price of grid energy is a bit of a svaing I agree... but, who want's to pay for 40 years worth of energy bills in one go? to put a reactor in their basement, potentially making their house unsellable glueing them to a single spot for 40 years, upon which point they'll probably be either dead, or mighty pissed at people digging up their home to remove the nuclear reactor that they'd got under the basement!
more to the point, why would you bother buying a nuclear reactor, whilst I'm not sure of the prices, I'll bet that it'd still be cheaper to invest in energy efficient house design, windows walls insulation etc, and apliances and fit solar pannels or simillar... (and that last more than 40 years)...
short of having your own chernobyle/long island in your basement, why would you actually want a nuclear reactor. it's hardly a saving or a cool statement is it!