Depending on the goodwill of politicians is nail-biting stuff when your core business evokes memories of Windscale, Three Mile Island and Chernobyl.

But Britain’s nuclear energy industry stands or falls on government policy, and RWE, Eon and EDF, the main companies lined up to invest in new nuclear power stations, have been on at the government for years to provide guarantees of “stability”.

In practice, that has meant avoiding policy reversals and help getting new nuclear projects through the planning process. But any way of underpinning revenues – please don’t call it a subsidy – would also be welcome. Read more