Great Britain’s household energy price cap is set to fall by 8% in April to its lowest since September 2024, a leading forecaster has said.
The cap is expected to fall by the equivalent of cutting £138 off a typical annual dual-fuel bill, after the autumn budget shifted some charges to general taxation, according to Cornwall Insight, a consultancy that tracks the energy market.
That would take the cost of the average household’s gas and electricity use for a year down to £1,620, after the energy regulator, Ofgem, announced a 0.2% increase to £1,758 from 1 January.
The forecast cuts would bring the price cap to its lowest level since September 2024. However, taxpayers will still bear some of the expense of energy generation in other ways.
Cutting household energy costs has been a key aim of the Labour government, which has said it wants to take £300 off domestic bills by 2030. Ministers hope to cut prices partly through large increase in clean power generation, but also by shifting so-called “policy costs” into general taxation, to help incentivise cleaner electricity usage over gas.
In November’s budget, the chancellor, Rachel Reeves, said that household energy bills in Great Britain would fall by £154 on average from April as a result of two changes.
The first was ending the energy company obligation scheme, through which suppliers fund household energy-saving measures. The second was a 75% decrease in the amount households contribute to the renewables obligation scheme, which subsidises clean power generation.
However, households will also face higher bills to pay for £28bn in upgrades to the UK’s gas and electricity grids. These are expected to add £108 a year to bills by 2031.
Craig Lowrey, Cornwall Insight’s principal consultant, said the budget measures were “a step towards the government’s £300 reduction target by 2030, and will ease some pressure on both families and policymakers”. But he added that the government still had a politically tricky course ahead.
“We need to be clear – costs aren’t vanishing, they’re shifting. Moving the renewables obligation from bills to taxation may feel like a win, but ultimately, it’s still going to be paid by the public,” he said.
“The transition to net zero isn’t cheap, but it’s the only route to genuinely lower bills in the long term. Turning back now might look tempting, but in the long run it would continue to leave consumers exposed to the same volatile global markets that contributed to the energy crisis.
“Staying the course on clean energy is the sustainable choice, but admittedly not the easiest or most politically expedient.”
The price cap, which is updated quarterly, is also affected by wholesale gas prices and other policies. Cornwall Insight said that households would benefit from slightly lower prices after US gas producers increased supplies in recent weeks, and gas usage in Europe was lower than expected thanks to a milder winter.
The price cap remains well above where it was before 2022, when Russia’s full-scale of Ukraine prompted a global energy crisis. Optimism that some form of peace deal may be approaching may also have helped to temper wholesale gas prices, Cornwall said.
Changes to grid cost forecasts also helped to lower the cap. The price cap does not apply to Northern Ireland.