I think it should all be nuclear and green, people are scared of nuclear power even though it's carbon free and i for one wouldn't want to rely on green energy. Certainly not in the UK where solar and wind are a bit sporadic...,(reply>), Maybe they’re just scared of all the radioactive waste it produces that we still don’t know what to do with and will outlast any amount of lead or concrete that gets put on top of it.,(reply>), Nuclear is used for space exploration a lot. Plutonium mostly.,(reply>), @András Bíró Seems he's actually right. The Hinckley C plant would cost £18bn to construct. This is because the European Pressurised Reactor design is plagued with construction feasibility, safety and design issues. It's been suggested that building multiple smaller plants would cost far less for the same output.,(reply>), @simonwass<br>I suspected that £2B was a bit low, but £20B is way too high, they are doing something wrong. Half of that would be more reasonable. Also nuclear plants last several times longer then renewables.<br>Nuclear plants were built much cheaper in the past, but we forgot how to do that because very few were built in the last decades," and because of the extreme regulations.<br><a href=""http://www.sciencedirect.com/science/article/pii/S0301421516300106"">http://www.sciencedirect.com/science/article/pii/S0301421516300106</a><br>With better reactor designs", mass production and reasonable regulation, nuclear power could be orders of magnitude cheaper.,(reply>), +ReddwarfIV You missed the zero off 20 Billion.