If you think switching is too much hassle (it isn't, but hey ho), just move to your current provider's cheapest deal. Yes that's right, bizarrely, even though it's the same gas, the same electricity, each energy firm charges a range of rates for using it. And no surprise Sherlock, it's the 'standard tariffs' that most people are on which are by far the most costly, as this table shows:
When you’re choosing a new energy deal, think about whether to go for dual fuel (where you get both your gas and electricity from the same company) or separate tariffs (where you get gas from one company, and electricity from another). It’s worth checking both options, as the combined price of separate tariffs can sometimes be less than a dual fuel offer.