Gas and electricity bills will rise by more than £900 this autumn, one of Britain's biggest energy suppliers has forecast.
Keith Anderson, chief executive of Scottish Power, said ten million poorer households needed bill discounts of £1,000: five times more than the government plans to offer in October, as he warned time is running out for emergency support.
Households will be left with a "huge increase" in their bills and unable to top-up their meters unless ministers act now to establish an adequate support mechanism, Anderson said.