> One of the reasons that the electricity that Hinkley will one day produce is so expensive (£92.50 per megawatt hour, compared with gas and wind at about £40) is that the constructors were required to shoulder the risk of any cost overruns themselves. EDF estimates that the cost of electricity produced at Sizewell will be somewhere between £40 and £60.

So even the company with a financial incentive to under-estimate the cost is saying that the electricity it produces will be at best as expensive as wind energy already is.

Of course nuclear power plants can still generate electricity on a windless day, but if they're only used on such days, then the cost per Joule is even worse.

Perhaps the (estimated) £20 billion could be spent on energy storage projects like Vehicle-to-Grid distribution or hydrogen generation, which should be even more competitive 10 years from now when this power plant is supposed to start operating.