Energy price cap explained: October 2026 figures and how it works

The energy price cap affects millions of British households, but it remains widely misunderstood. Many people think it limits what they pay for energy in total, when in fact it sets the maximum rate suppliers can charge per unit of energy consumed. Understanding how it works can help you predict your bills and challenge errors.

What the price cap actually does

Ofgem, the energy regulator, sets a maximum unit rate for electricity and gas that suppliers can charge customers on standard variable tariffs. For the period 1 October to 31 December 2026, a typical dual-fuel household on Direct Debit pays:

• Electricity: 26.32 pence per kWh, with a daily standing charge of 54.83 pence
• Gas: 7.97 pence per kWh, with a daily standing charge of 29.68 pence

This represents a 4% increase from the previous quarter. The standing charge is a fixed daily fee you pay whether you use any energy or not. Crucially, the price cap does not limit your total bill. Use more energy, and you pay more. The annual bill for a typical dual-fuel household is approximately £1,723 based on average consumption.

These figures are averages across England, Scotland, and Wales; actual charges vary by region. Ofgem publishes regional variations on their website if you want to check your specific area.

How the price cap is calculated

Ofgem’s cap covers multiple cost components: wholesale energy costs (what suppliers pay to buy power), network infrastructure (the pipes and cables to your home), government environmental and social schemes, supplier operating costs, and VAT. The regulator reviews these costs every three months and adjusts the cap accordingly. When wholesale energy prices fall, so does the cap, and when they rise, the cap generally follows.

The cap applies only to customers on standard variable tariffs. If you have a fixed-rate contract with your supplier, the cap does not protect you—your supplier can charge what is in your contract, regardless of the cap. Some people switch to fixed rates when they expect prices to rise; others choose them for billing certainty. A fixed contract can be cheaper or more expensive than the variable cap, depending on when you fixed.

Prepayment meters and Direct Debit

Payment method affects your unit rates. Direct Debit customers typically receive the lowest rates because suppliers have fewer administrative costs—money flows automatically. Customers who pay on receipt of a bill (standard credit) face slightly higher rates. Prepayment meter users pay the highest rates, usually a few pence per kWh more than Direct Debit customers, because the supplier carries more financial risk if the customer runs out of credit.

The price cap sets separate maximum unit rates for each payment method, so prepayment customers’ cap is higher than Direct Debit customers’ cap, even though they use the same supplier. If you’re struggling to top up a prepayment meter, contact your supplier before you run out of credit; many offer emergency credit and hardship support rather than leaving you off-supply.

How to read your usage and challenge errors

Your energy bill shows how many kWh of electricity and gas you consumed. You can calculate your approximate cost by multiplying your kWh by the unit rate, then adding the standing charge multiplied by the number of days in the billing period.

If you suspect your bill is wrong, check your actual meter reading against what the supplier has recorded. Many billing errors stem from estimated readings that significantly overstate consumption. If you provide an actual reading, the supplier must use it. You can also request a smart meter installation for free; these provide real-time usage data and eliminate estimation.

The most common reason a bill seems too high is not that your rate is wrong, but that consumption has increased due to heating, electrical usage changes, or a tariff change. Comparing your bill to previous periods for the same season reveals whether consumption has genuinely risen. If you’ve checked your reading and your tariff and still think the bill is wrong, raise it through your supplier’s formal complaints process; if it stays unresolved, you can escalate the complaint to the Energy Ombudsman.

Fixed versus the price cap

A fixed-rate tariff sets your unit rate and standing charge for a defined period, typically 12 or 24 months. Once the contract ends, you revert to your supplier’s standard variable tariff, which typically means the price cap rate applies. Some suppliers tie their variable tariff precisely to Ofgem’s cap; others add a margin on top.

Fixed rates became less popular when the price cap fell in 2023–2024, as caps were lower than fixed contracts. As the cap rises toward October 2026, more people switch to fixed rates to lock in certainty, though not all fixed rates currently available are cheaper than the October 2026 cap.

Key points

• The energy price cap limits unit rates (pence per kWh) and standing charges, not total bills
• October 2026 rates: 26.32p/kWh electricity plus 54.83p daily standing charge; 7.97p/kWh gas plus 29.68p daily standing charge
• The cap applies only to standard variable tariffs, not fixed contracts
• Rates vary by region and payment method; Direct Debit is cheapest, prepayment most expensive
• Check your actual meter reading to avoid inflated estimated readings
• The cap changes every three months based on wholesale energy costs and other factors

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