Traveling wave reactor.
http://www.intellectualventures.com/Home.aspxhttp://www.intellectualventures.com/OurInventions/TerraPower.aspxThe Need for Innovation in Energy
Several years ago, the experts and researchers at Intellectual Ventures decided they wanted to find innovative solutions to the world energy crisis. After countless brainstorming sessions, IV settled on pursuing nuclear energy because of its potential to serve as a carbon-free source of baseload energy.
Those efforts developed into TerraPower™, which became its own company in 2008. TerraPower is working to develop a traveling wave reactor, which could avoid the well-known limitations of current plants, nearly all of which employ nuclear reactor technology that dates back to the 1950s. Today’s reactor designs require enriched uranium fuel, but can extract only a small fraction of the energy from that fuel.