Britain's Energy Price Cap Is Forecast to Hit £1,999 in January
Cornwall Insight forecasts Great Britain's Default Tariff Cap will rise 16% to £1,999 a year for typical dual-fuel use for January to March. The projection, reported on 30 September, points to a winter cap nearly £300 above current levels The Guardian.
That January figure means £276 more per year for a typical household. It is up from the firm's earlier expectation of a 9% rise for the same quarter. If confirmed, it would be the highest cap in four years.
Analysts linked the revision to wholesale gas prices at three-year highs. European gas prices have doubled in recent months, while European gas storage sits at its lowest level in 13 years ahead of winter. The firm connected the tight global gas market to the US-Israel war on Iran, with oil and gas exports from the Gulf still severely disrupted.
The cap is set each quarter by Ofgem, the regulator for Great Britain. In brief, it limits the unit rates and standing charges suppliers can charge on default tariffs. It is expressed as an annual figure for typical use, not a strict limit on any household's total bill.
The January forecast follows an autumn increase. From October, the cap rises 4% to £1,723 a year for typical use, the highest in three years. From October, capped electricity is 26.32p per kWh, up from 26.11p, and gas is 7.97p per kWh, up from 7.33p.
Cornwall Insight's forecasts for 2026 have moved with wholesale volatility. On 19 August, it projected the October cap at £1,729 a year for typical use, up £66 from £1,663 Reuters. Earlier, its July projections ranged from £1,801 to £1,929 as spring prices shifted. The figures behind the £276 January rise were also shared with the BBC BBC. The firm describes its work as forecast modelling for the Default Tariff Cap, commonly called the price cap Cornwall Insight.
The broader context here is how Gulf disruption and low European storage feed directly into regulated British prices. With storage low, Europe has less cushion against supply interruptions or a cold snap. Wholesale markets still drive the price. Policy can shift who pays or offer targeted help, but it cannot quickly replace missing gas supplies.
Looking at what this means for the months ahead, much depends on whether Gulf flows stabilise and European stocks rebuild before sustained winter demand. These forecast caps are not final decisions. They point to pressure. For households, industry and budget planners, the January number outlines possible exposure rather than a final bill.
