The UK "nuclear cuckoo" would suck up all the levy on bills, squeezing out renewables.

Tom Burke: “The current cap is £2.6bn a year and will rise to about £3.87bn by 2015. Here’s the rub. To get the 16GW of new nuclear by 2025 Decc wants will be expensive. On the most optimistic estimates this will require a levy of £5.5bn a year by 2024. More realistic estimates make this £12.6bn a year. Even if there is no increase at all in the subsidy for renewables the levy cap would have to rise to more than £16bn a year.” Ergo, major scope for renewables to be squeezed out.