In a move which has been widely predicted but is still unwelcome nevertheless, British Gas is putting up gas prices by 18 per cent and electricity prices by 16% from August 18, 2011. The utility last raised its rates back in December 2010 by 6.9% for gas and 6.7% for electricity. This means British Gas customers will have seen their bills increase by one-quarter in the last year alone. The firm has blamed the rises on the increasing wholesale cost of gas.