New analysis warns that energy bills are expected to rise by almost £1,300 in October.
In another cost of living crisis blow, analysts say that Ofgem's price cap for average usage is likely to hit a whopping £3,244.
Energy prices are currently pegged at £1,971.
The 64 per cent hike is set to be followed by another rise in January, experts warn, when the cap is likely to reach £3,363 a year.
Money Saving Expert Martin Lewis was reported to have said: “It’s horrendous. Especially as we’re now near the end of the assessment period that sets October’s cap, so this is the right ballpark.”
The latest figures are higher than previously predicted and led Lewis to call for further Government action to assist struggling families.
Cornwall Insight produced the latest figures and Dr Craig Lowrey of the company warned in The Sun : “As it stands, energy consumers are facing the prospect of a very expensive winter.
"There is always some hope that the market will stabilise and retreat in time for the setting of the January cap.
“However, with the announcement of the October cap only a month away, the high wholesale prices are already being ‘baked in’ to the figure, with little hope of relief from the predicted high energy bills.”
The Bank of England warned the treasury earlier this week that billions of pounds of relief will be needed to see struggling Brits through the winter.
New Chancellor Nadhim Zahawi is unlikely to make any major spending decisions until Boris Johnson is replaced as Prime Minister, with inflation having already risen to nine per cent and expected to go higher.
The Mirror has outlined fears that Ministers appear blind to the disaster heading our way, with families set to be forced to choose between heating and eating, more elderly people dying from cold and more businesses struggling to stay afloat.
