Warning of winter energy crisis as household bills forecast to approach £2,000

Households face another punishing winter of rising energy costs, with the typical annual bill now forecast to approach £2,000 in January, as renewed turmoil on international energy markets exposes Britain’s continuing vulnerability to overseas supplies.

Prime Minister Andy Burnham has acknowledged that families face a difficult winter, after analysts sharply increased their forecast for the energy price cap at the start of next year.

Cornwall Insight now expects the cap for a typical dual-fuel household paying by direct debit to rise by 16 per cent in January 2027, from £1,723 to £1,999.

That would add £276 to the annualised bill of a typical household and represent the largest quarterly increase since January 2023. The January cap has not yet been formally set by Ofgem, however, and will depend on wholesale prices during the regulator’s assessment period.

The warning comes before households have even absorbed the next increase.

From October 1, Ofgem’s price cap rises by four per cent, from £1,663 to £1,723 for a typical household using gas and electricity and paying by direct debit, an increase of around £60 a year.

The cap does not impose a maximum total bill, households using more energy will pay more, but instead limits the unit rates and standing charges suppliers can levy on customers on default tariffs. Around 22 million households are protected by the cap, although Ofgem says roughly 11 million households are currently on fixed tariffs and will therefore not be affected by the October increase.

Mr Burnham said the situation was “very challenging” for households, pointing to pressures not only on domestic energy bills but also petrol and diesel prices.

The immediate cause of the latest surge is largely international. Ofgem says higher wholesale gas prices caused by the continuing conflict in the Middle East are behind the October increase, while disruption to oil and gas supplies from the region has sent energy markets sharply higher.

But the crisis also raises a longer-term question for Labour, why a country with substantial remaining energy resources should leave itself increasingly exposed to volatile international markets.

North Sea production continues to decline

Britain has produced oil and gas from the North Sea for more than half a century, but production peaked in 1999 and has since fallen by more than 70 per cent.

The UK has been a net importer of gas since 2004 and, with the exception of 2020, a net importer of oil since 2005.

Crucially, Britain is not expected to stop needing either fuel soon.

The North Sea Transition Authority projects that between 2025 and 2050, total UK demand for oil will be around 2.6 times domestic production, while demand for gas is expected to be between 3.3 and 3.7 times domestic production.

Yet Labour’s North Sea Future Plan maintains its policy of issuing no new licences for further oil and gas exploration or production.

Existing fields can continue operating, and the Government has introduced Transitional Energy Certificates to permit some additional development around existing licensed fields, but new exploration remains ruled out.

That policy is increasingly difficult to separate from the wider debate over Britain’s energy security.

Even in 2024, North Sea gas supplied almost half of UK gas demand. Domestic oil and gas production therefore remains an important component of Britain’s energy system.

Supporters of further North Sea development argue that extracting more of the fuel Britain continues to consume domestically would reduce reliance on imports, support skilled employment, retain economic activity and tax revenues in Britain, and provide greater resilience when international supply routes are disrupted.

There is, however, an important distinction between energy security and energy prices.

Oil and gas are traded internationally, so producing more in the North Sea would not insulate British consumers from global market prices. Analysts cited by the House of Commons Library argue that additional North Sea production would have only a limited direct effect on household prices.

But domestic production can still reduce the quantity of energy Britain needs to import, and therefore its physical dependence on foreign supplies.

That distinction matters when international disruption is precisely what is pushing bills higher.

Labour faces questions over cost of energy policy

The latest increase also comes after years in which policy costs have added significantly to electricity bills.

An Institute for Fiscal Studies analysis published this month found that taxes and levies on electricity, excluding VAT, increased by 59 per cent in real terms between 2017 and 2025.

By 2025 they accounted for 23 per cent of an average household electricity bill.

Recent government changes, together with the increase in wholesale costs, have reduced their share to around 17 per cent between July and October this year.

Labour is temporarily removing the five per cent VAT charged on domestic electricity from October, a measure Cornwall Insight estimated would save a typical dual-fuel household around £44 a year.

But even that saving is being overwhelmed by rising wholesale costs.

The result leaves Labour in an uncomfortable position, attempting to offer households short-term relief while pursuing an energy strategy intended to reduce Britain’s reliance on fossil fuels over the longer term.

The Government argues that the real answer to energy insecurity is greater production of home-grown clean electricity, saying dependence on international fossil-fuel markets leaves consumers exposed to geopolitical shocks. It points to renewables, nuclear power and other domestic generation as the route to greater long-term energy independence.

That strategy does not alter the fact that Britain will continue to consume substantial quantities of oil and gas for decades, however.

With North Sea production falling and demand continuing, refusing new exploration means an increasing proportion of that remaining requirement is likely to have to be met from overseas.

The political contradiction is becoming harder for Labour to avoid, ministers warn that international oil and gas disruption is pushing up British bills, while simultaneously restricting the development of Britain’s own remaining oil and gas resources.

Renewables and nuclear power are important parts of a more secure domestic energy system, but so too is the question of how Britain supplies the oil and gas it will continue to use during the transition.

For households facing bills approaching £2,000, arguments about Britain’s future energy mix are no longer abstract.

The latest forecast is another reminder that energy security is national security, and that a country which remains dependent on oil and gas must decide whether it is comfortable increasingly buying those fuels from abroad while leaving resources beneath its own waters undeveloped.