Ofgem has confirmed the energy price cap will increase by five per cent on the previous quarter from January 1.
For an average households paying by direct debit for dual fuel, it equates to a rise of £94, to £1,928 a year.
The price cap, set every quarter, sets a maximum that firms can charge customers for energy bills.
However, it's a cap on the unit rate and standing charge, so if people use more energy than average, they could pay more than the aforementioned figure.
The new energy price cap will come into effect from January 1 to March 31
Ofgem said the price increase is driven almost entirely by rising costs in the international wholesale energy market due to market instability and global events, particularly the conflict in Ukraine.
The energy regulator recently announced new rules for suppliers, making clear they should be prioritising enquiries from vulnerable customers who need help and proactively contacting households if they miss two monthly or one quarterly payment, to see if they are struggling with bills, and offer support - such as affordable payment plans or, if appropriate, repayment holidays - if so.
Jonathan Brearley, CEO of Ofgem, said: “This is a difficult time for many people, and any increase in bills will be worrying. But this rise – around the levels we saw in August – is a result of the wholesale cost of gas and electricity rising, which needs to be reflected in the price that we all pay.
“It is important that customers are supported and we have made clear to suppliers that we expect them to identify and offer help to those who are struggling with bills.
“We are also seeing the return of choice to the market, which is a positive sign and customers could benefit from shopping around with a range of tariffs now available offering the security of a fixed rate or a more flexible deal that tracks below the price cap.
“People should weigh up all the information, seek independent advice from trusted sources and consider what is most important for them whether that’s the lowest price or the security of a fixed deal.”
Richard Neudegg, director of regulation at Uswitch.com, said the rate increase would "bite" during the coldest period of the year, when households need to use the most energy to stay warm.
He added: “This means energy bills are likely to be the highest they’ve ever been for most homes this winter. Between January and March, average bills will be £46 more expensive than the same period last year when the government’s Energy Bill Support Scheme was in place.
“With bills so high, it’s important to ensure you are only using and paying for the gas and electricity you need.
"Tracking your usage can help uncover simple ways to save energy, such as lowering wash temperatures or changing your cooking methods."