Now, though, it's being used as a test bed for a new reactor, ITER, which will generate electricity from fusion, using fuel found in ordinary seawater. Just one cubic kilometre of seawater contains enough deuterium - used as a nuclear fuel by JET - to generate more power than the world's entire oil reserves.
When a fusion plant eventually manages to return more energy than is put in, wind and solar energy will become almost irrelevant. Countries whose power and wealth are built on reserves of fossil fuels will find themselves in a very different situation.
http://www.dailymail.co.uk/home/moslive/article-1194169/Set-controls-heart-Sun.htmlIn a working fusion reactor, the reaction will be sustained, and safe. The fast-moving particles released by the hydrogen will be 'caught' in a blanket of liquid lithium, which will heat up, in turn boiling water and driving steam turbines as found in a conventional nuclear or coal power station.
But there are several huge differences. No carbon dioxide is emitted from a fusion reactor. The fuel is found in ordinary water - there are 25ml of deuterium in every litre you drink. And there's no chance of a fusion Chernobyl.
The reaction is so difficult to sustain that it can't run out of control. And while the reactor tiles become mildly radioactive, they're far less toxic than the waste generated by normal fission reactors, and become totally safe in 100 years. There is no weapons-grade fuel for terrorists to steal.
It would be nice to see that reactor come online, even if it's just to tell the Middle East, Oil companies, et al. to go to Hell.