Household energy prices are set increase again to the highest level for three years heading into winter, according to new forecasts.

Bills are due to increase despite the Prime Ministerโ€™s plan to remove VAT from household electricity bills from October.

The energy price cap is currently expected to increase by 4% in October compared with the current rate, experts at Cornwall Insight said.

Analysts said the increase is driven by continued uncertainty linked to the Middle East conflict, which has pushed wholesale energy prices higher.

Prime Minister Andy Burnham is removing VAT from electricity bills for six months from October (Finnbarr Webster/PA)
Prime Minister Andy Burnham is removing VAT from electricity bills for six months from October (Finnbarr Webster/PA) (PA Wire)

The ongoing heatwaves across Europe have added further pressure by increasing gas demand for power generation to meet air conditioning and cooling demand.

Cornwall said it expected a typical household to be facing an annual bill of ยฃ1,729, up from ยฃ1,663, based on an Ofgemโ€™s updated definition of a typical consumer, which came into effect from July to reflect falling household energy use.

It said this would be the equivalent of ยฃ1,941 per year based on its previous calculations, up from ยฃ1,862 currently.

It would mark the highest average bill since July 2023.

The increased October cap, which will remain in place for three months, will come into force as households start to increase their energy usage further by using their heating more regularly, adding to bills.

Cornwall said the expected increase in October will be less than otherwise expected because of the proposed removal of VAT from household electricity bills.

The Prime Minister previously said this would knock around ยฃ45 off the annual Ofgem price cap from October.

However, the experts said the recent swing in global energy prices has more than offset the downward impact of the VAT policy.

Dr Craig Lowrey, principal consultant at Cornwall Insight, said: โ€œRising energy bills arenโ€™t welcome at the best of times, but with winter approaching this latest hike will hit struggling households especially hard.

โ€œDriven by international conflict rather than domestic policy, it is a stark reminder that our energy bills remain tied to events thousands of miles away.

โ€œMoments like this are the strongest argument for reducing Britainโ€™s reliance on volatile international gas.

โ€œWhile temporary relief like VAT cuts help soften the blow, they donโ€™t touch the underlying fact that Britain is heavily dependent on imports of natural gas.โ€

A Government spokesman said: โ€œTackling the cost of living remains a key priority for this Government and we know families will be worried by the prospect of higher energy bills this winter.

โ€œWeโ€™re acting to give consumers breathing space with the cost of living โ€“ cutting VAT on energy bills, ensuring around six million households get the ยฃ150 warm home discount this winter, and making millions of homes cheaper to run through our warm homes plan.

โ€œAlongside our efforts to support rapid de-escalation in the Middle East, we will do everything we can to shield consumers from global energy shocks and bring down bills for good.โ€