A raft of energy price hikes come into effect next month but customers on expensive standard variable tariffs could save around 25% by switching to one of the cheapest available dual fuel deals.

Research from campaign site Which? found that customers with the ‘Big Six’ energy suppliers – British Gas, EDF, E.ON, Npower, Scottish Power and SSE – will pay an average of £1,131 per year following the price rises, but they could save around £300 a year switching to the cheapest deal on the market.

By switching, customers could get their bills back to the equivalent of 2008 prices as gas costs have increased 25% while electricity has risen by 23% in that time period.

The cheapest energy tariffs

Here are the 10 cheapest dual fuel tariffs currently on the market:

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Alex Neill, Which? managing director of home products and services, said: “Far too many people are still stuck on some of the most expensive deals. With five of the big six set to increase their prices, consumers could save £300 a year by switching to a cheaper deal now.

“With speculation rife that the government may introduce a price cap, it is vital the regulator ensures that any price control makes a real difference for people struggling with their bills.”