Here's the latest on the price hikes..see how you stand..
Scottish Power's standard electricity prices will increase by an average of 10.8% and gas by 4.7% on 31 March.
Npower is raising its standard tariff electricity prices by 15% from 16 March, and gas prices by 4.8%
EDF Energy cut its gas prices by 5.2% in January, but its electricity prices rose by 8.4% on 1 March
British Gas is freezing its gas and electricity prices until August
E.On is increasing electricity prices by an average of 13.8%, and gas prices by 3.8%, on 26 April