My view on nuclear fusion, in a nutshell
A review by Giuseppe Cima of the situation with nuclear fusion. The matter is complex, but Cima identifies the crucial point: even assuming that nuclear fusion were to work as expected, it would be more expensive than the presently available renewable technologies. Consider also that it will take at least half a century before we can have fusion reactors able to produce commercially available energy (maybe). How much better and cheaper will renewables be by that time? Considering that fusion is not a “clean” technology, as sometimes claimed, it doesn’t seem to have any realistic chance to be useful for something, now or in the future. So, why are we still spending money and resources on this technology? One more example of the human blind faith in technology and its miracles (U.B.)
Nowadays few businesses would invest in conventional nuclear power stations. In the US, subsidies of 100% or more fail to attract private investments for a nuclear fission power station, the classic form of nuclear energy. So, the perspectives for a revival of nuclear are not rosy.
But there exists another form of nuclear energy, thermonuclear fusion, the one that powers the stars. Fusion, the sticking together of light nuclei such as hydrogen, is a nuclear reaction distinct from fission, where heavy atoms, such as uranium, break apart. Fusion energy research has been pursued since the WWII years in national labs and universities all over the world. Despite all efforts, though, so far it has not provided a clear indication of being feasible. What are the current perspectives of this form of energy?
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