I've just switched energy suppliers and ditched my Npower fixed till March 2017 deal. Gone with
Gas - Daligas Fixed for 12 months projected annual saving £240
Electric - Scottish Power Fixed for 12 months projected annual saving £189
The dual fuel deals with one supplier are a scam so I've moved away from that, also getting £30.00 cash back doing it through Energylinx via TopCashback