I'm not much of a fan of conventional nuclear power, but this looks interesting. Gates is supporting small scale nuclear power plants that will run on depleted uranium. It is a bit too technical for me to judge whether the smaller plants will be any more successful than conventional nuclear installations which have been plagued with massive cost overruns and technical difficulties, but if nuclear is to be an option this looks promising.
Bill Gates, Toshiba in early talks on nuclear reactor
Bill Gates Goes Nuclear - BusinessWeek
Bill Gates, Toshiba in early talks on nuclear reactor
Bill Gates Goes Nuclear - BusinessWeek