This will add an extra £48 for standard dual fuel direct debit customers from 18 January.

E.ON customers who only have an electricity account will see prices rise by an average of 3.7%, or £20 a year. Gas only customers will be charged an average of 4.6% more, or £37 a year.

E.ON is the last of the ‘Big 6′ energy firms to hike up energy prices this winter. The average energy price increase in the UK will now add an extra £92 or 6.8% to household energy bills, according to uSwitch.com.

E.ON said it has already factored in the recently announced reduction in government levies on bills, which has allowed it to increase its prices by less than originally planned.

Ann Robinson, director of Consumer Policy at uSwitch.com, said: “This round of price hikes has added to the burden for consumers struggling to afford to stay warm. The Government has tried to lend a hand, but suppliers now have to play their part too. They must do the right thing by passing the cuts on to their customers ASAP so that households can feel the benefit throughout winter.

“Suppliers that are unable to provide this much-needed relief this year should backdate it so that customers don’t lose out.”

British Gas has already announced that it will cut prices by 3.2% on 1 January, following the government rebate. That follows a 9.2% increase on dual fuel bills which came into effect on 23 November.

EDF is to increase prices by 3.9% on 3 January, a cut which factors in the rebates.

The other big energy suppliers have yet to announce how the changes announced by the government will affect bills.

However, consumers are being reminded that even with the reduction from the levies, bills will still be higher.

Clare Francis from MoneySuperMarket, said: “We also urge consumers to do all they can to bring their bills down. If you haven’t changed your energy deal recently and are paying your provider’s standard prices, you will be able to make savings. And if you move onto a fixed rate tariff you will be protected from any further price increases for a set period of time. The average saving by moving on to a better value deal is around £250 a year and it only takes five minutes to do if you’re armed with your most recent bill.

“Comparing the best tariffs is crucial and fixing is the best option for UK households who want to beat the current round of price hikes and protect themselves from future increases. E.ON standard customers moving on to the Fixed Price March 2015 tariff from Co-Op Energy could save £136.48 on average and not suffer increases to their bills for two winters, also if there were price decreases there are no exit fees for this deal so you could easily switch again if the landscape changes.”