TerraPower has a traveling-wave reactor (TWR) which would run on depleted uranium. It could be dramatically safer and substantially cheaper than current nuclear reactors.
In 2019, Bill Gates will speak out more about how the U.S. needs to regain its leading role in nuclear power research.
Nuclear is ideal for dealing with climate change, because it is the only carbon-free, scalable energy source that’s available 24 hours a day. The problems with today’s reactors, such as the risk of accidents, can be solved through innovation.