Boris Johnson is poised to sign off as prime minister by giving the green light for a new nuclear reactor costing up to £30bn.
The decision to offer funding for the Sizewell C in Suffolk, in his final week in Downing Street, is expected to unlock significant private funding for the project after years bogged down in planning approvals. However, it would come after Johnson promised not to make any major spending decisions before leaving office. Here is the state of play.
