Although it is quite feasible to switch either your gas or your electricity supplier, it will often be the case that the biggest savings will be made by switching both services to the same supplier. This minimizes their costs, only one meter reader, only one accounts department producing one set of bills etc. In fact the very best deals are available to those people ready to sign up for dual fuel paid for by monthly direct debit.

One of the most competitive of this style of account at the moment is Powergen Energy's Online Tariff, but finding the cheapest supplier depends on your usage levels and the region in which you live. Full details of the Powergen Energy Online Tariff plus many more others can all be found on the uSwitch web site. Average annual savings customers can make by switching gas and electricity via uSwitch.com is £140 (£80 for Gas, £60 for electricity).

Although over 19 million gas and electricity customers have switched supplier in the last four years, there is still an an estimated 15.8 million households in the UK who have not switched energy suppliers. This means there is £2.2 billion in unclaimed energy savings which gas and electricity providers are sitting on. Virtually all customers who have never switched supplier can make good savings. Every customer can save from their first switch, by up to 23% in gas or 20% in electricity.

An independent MORI survey found that almost 90 per cent of people who have switched their gas and electricity supplier have found it easy. 66 per cent of all electricity switchers and 58 per cent of gas switchers found it very easy.

Click here to see what savings are possible by switching electricity supplier