Npower adds to energy bill rises
12 October 2012 Last updated at 19:56 BST
Npower has joined rival British Gas in announcing it is increasing gas and electricity prices in the UK.
Npower will increase the price of gas by an average of 8.8% and electricity by 9.1% from 26 November.
Earlier, British Gas, the UK's biggest energy supplier, raised its charges for both types of fuel by an average of 6%, adding £80 a year to the average dual fuel bill.
The firms both blamed the government's policies as well as wholesale prices.
Hugh Pym reports.