The spectre of inflation has returned to stalk the UK economy, as the post-referendum slump in the pound has driven up the cost of imported goods from petrol to tea, fish and smartphones.
Scottish Power customers have just seen their standard dual-fuel bill jump by an average of £86 a year. Npower dual-fuel bills have just gone up by 9.8%, leaving some customers £110 worse off.
Co-op Energy dual-fuel customers face increases of about £58 a year. British Gas, which has 11 million business and household customers, is the only big energy provider not to have announced price rises, but it is expected to follow suit in the summer.