Energy Price Projections

The Energy Price Cap: What It Means For Your Bills

The energy price cap, set by Ofgem, limits the amount energy suppliers can charge for each unit of gas and electricity, as well as daily standing charges. It’s designed to protect consumers from excessive costs, but it changes quarterly to reflect shifts in the wider energy market.

What Affects the Price Cap?

Ofgem calculates the price cap by analysing a wide range of factors that influence energy costs for suppliers. These include:

• Wholesale energy prices – especially natural gas, which remains a major driver of overall costs.

• Supply and demand trends – including seasonal usage patterns like higher winter demand.

• Geopolitical events – such as international conflicts or disruptions to energy supply chains.

• Regulatory and policy changes – government support schemes, levies, or adjustments in the cap methodology.

• Operational costs – including inflation, infrastructure investments, and network charges.

These factors can change quickly and unpredictably, which is why regular market monitoring is so essential.

The Impact of the Iran Conflict

The eruption of the conflict involving Iran has significantly destabilized the global energy landscape, putting severe upward pressure on wholesale prices. Following military actions and subsequent disruptions—including the blockade of the critical Strait of Hormuz—global oil and liquefied natural gas (LNG) supplies have tightened dramatically. Because the UK relies heavily on global markets to establish its domestic gas and electricity rates, these geopolitical tensions reversed previous downward trends. Wholesale gas prices surged by 28% over the spring, directly driving up the retail rates announced for the upcoming cap.

The July 1st Price Cap Announcement

Following a period of relative stability, the latest Ofgem announcement has confirmed a sharp market reversal. From July 1st, the energy price cap will rise by 13%.

For a typical dual-fuel household paying by Direct Debit, this means an annual increase of £221 (moving from £1,641 to £1,862).

Note on Average Bills: While the underlying unit rates for gas are jumping by 24% and electricity by 5%, Ofgem has also updated its calculation model to reflect lower average household energy consumption. However, because the cap regulates the price per unit rather than your total bill, your actual cost will always depend entirely on how much energy you use.

Who Forecasts Future Movements?

Independent analysts like Cornwall Insight are widely recognised for their detailed energy price cap forecasting. They continue to monitor market trends to project where the cap will go next, with early warning models suggesting a further 2% rise could be on the horizon for October as the winter months approach.

In addition to independent analysts, major UK energy suppliers provide their own publicly available price cap trackers and forecasts to help customers look ahead:

• British Gas publishes a quarterly Price Cap Predictions page.

• EDF Energy offers weekly energy price forecasting.

• E.ON Next also publishes regular market updates and forecasts.

These supplier insights are particularly helpful because they update more frequently than the Ofgem quarterly reviews, catching short-term shifts in wholesale markets. Reliable comparison tools, like those offered by ismybillfair, draw on these supplier projections alongside independent data to give you a well-rounded view of where energy prices are heading.

Why Seasonal Demand Matters

In the UK, energy usage isn’t constant throughout the year. Winter months see much higher demand, mainly due to heating. While the July price cap comes into effect during the lower-use summer months, tracking these changes now gives households a vital head start to prepare, budget, or lock in a fixed rate before colder weather drives demand—and potentially prices—even higher.

How ismybillfair Uses This Data

At ismybillfair, we use the latest finalized data and trusted market forecasts to help assess how the price cap impacts the deals available to you. Our team considers:

• Confirmed rates and publications from Ofgem

• Real-time data and tariff options from our partner suppliers

• Future projections from independent energy analysts

This helps us provide fair, transparent comparisons—so you can make better-informed decisions about whether to stay on a standard variable tariff or switch to a fixed deal.