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The Guardian:

The proposed Sizewell C nuclear power station could cost UK taxpayers more than double government estimates and take an extra five years to build, according to research.

Ministers will decide in July whether to approve the development of the Suffolk power station proposed by the French developer EDF. The business department has estimated that the government-backed scheme will add an extra £1 a month to household bills to aid construction costs.

But research by the University of Greenwich Business School seen by the Guardian shows the average monthly cost could reach £2.12, or £25.40 a year. At its costliest point, the build could cost taxpayers nearly £4 a month. That represents the study’s gloomiest forecast, which predicts construction would take 17 years and cost £43.8bn.

The project had been expected to cost £20bn and take 10-12 years to build. Stephen Thomas, a professor at Greenwich Business School, said the average forecast put the cost at £35bn over 15 years, or £2.3bn a year.

The figures could further inflame the debate over the cost and time of building power stations after Boris Johnson last month set a target of building a new nuclear station every year.

[Alex Lawson]

More: Sizewell C ‘may cost double government estimates and take five years longer to build’

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