Leighton Upton, 24 May 2009
We should pursue all options to stop using fossil fuels – but nuclear fusion is the exception. By 2040, the world economy can be entirely based on renewable energy: solar, wind, biomass/biogas, wave and tidal. We need bridging technologies to reduce emissions radically before then. Nuclear fission is a bridging technology – new power stations can be operating by 2020. CCS is proven at small scale and, if demonstrated to work at large scale, can also be a bridging technology.
Nuclear fusion can’t.
Ever since I’ve worked on energy issues, fusion has always been “20 years away”. It still is. Billions of pounds/dollars/Euros have been wasted trying to make it work. That money should be spent instead on building new, efficient grids (for example, to bring concentrated solar from the Sahara to Europe).