Part 1 of 3 Parts
In the south of France, the International Thermonuclear Experimental Reactor (ITER) is slowly moving towards completion. It is scheduled to be switched on in 2035. It will be the biggest fusion reactor ever constructed.
Part 1 of 2 Parts
Nuclear fission reactors generate reliable supplies of electricity while emitting little carbon dioxide when operating. A conventional nuclear power reactors in the one-gigawatt range also produces spent nuclear fuel that must be isolated from the environment for hundreds of thousands of years. The cost of such a reactor can be tens of billions of dollars.