Almost 10 million households have been told they risk overpaying for their energy if they do not send meter readings to their supplier, as a 10% price rise takes effect.The average household energy bill increases by £149 a year from Tuesday, as Ofgem raises its price cap just as the winter months begin.

Almost 10 million households have been told they risk overpaying for their energy if they do not send meter readings to their supplier, as a 10% price rise takes effect.The average household energy bill increases by £149 a year from Tuesday, as Ofgem raises its price cap just as the winter months begin.