Household energy bills in the UK are projected to climb sharply again this summer, with the price cap expected to approach £2,000. The increase follows a brief period of lower costs in spring and reflects ongoing volatility in global energy markets.
According to Cornwall Insight, the energy regulator Ofgem’s price cap could rise to around £1,934 in July, up from the current £1,641 level set for April to June. The forecast highlights how external geopolitical pressures continue to shape domestic energy costs.
The anticipated rise comes at a time when households are already navigating cost-of-living pressures. While the current cap offers short-term relief, analysts suggest that underlying market conditions point to renewed strain later in the year.
Wholesale Gas Prices Drive Renewed Increase
The primary factor behind the projected rise is the surge in wholesale gas prices, which play a central role in determining the UK’s energy price cap. According to reports, these prices have more than doubled since late February, following US military action involving Iran and escalating tensions in the Middle East.
This volatility has fed directly into forecasts for the July cap. Cornwall Insight estimates the cap will increase by roughly £300 compared with April levels, bringing it close to the highest figures seen since mid-2023, a period marked by sharp increases after Russia’s invasion of Ukraine.
The consultancy noted a slight easing in its latest projection, revising the figure down from £1,973 to £1,934. According to Cornwall Insight, this adjustment reflects a partial stabilisation in wholesale markets, linked to a pause in energy infrastructure strikes and signals of potential de-escalation in the region.
Still, analysts warn that the overall direction remains upward. The recent spike in wholesale prices has already been factored into the upcoming cap calculation, making a summer increase effectively unavoidable.
Geopolitical Tensions and Policy Responses Shape Outlook
The broader geopolitical situation continues to weigh heavily on energy markets. The Strait of Hormuz, a critical route for global oil and gas shipments, has been at the centre of tensions. Around 20 per cent of the world’s oil and gas supply passes through this corridor, making any disruption highly consequential for global trade and pricing.
Reports indicate that Iran has warned of restrictions in the strait, raising concerns about supply flows. At the same time, diplomatic developments remain uncertain, with conflicting accounts over potential negotiations involving the United States.
Domestically, the UK government has pointed to recent measures aimed at easing costs in the short term. According to the Department for Energy, the current price cap reduction of £117, introduced from April, will remain in place until the end of June, offering temporary protection for households.
Energy minister Martin McCluskey stated that tackling affordability remains a priority and acknowledged concerns about how international events could affect household bills. He indicated that further intervention remains an option if conditions worsen.
Despite the expected summer increase, analysts note that seasonal factors may soften the immediate impact, as energy demand typically falls during warmer months. Attention is already shifting to the autumn period, when higher usage could amplify the effect of sustained elevated prices.
