October Energy Price Cap Rise: What It Means for Solar and Battery Storage

Ofgem has confirmed that the energy price cap will rise again from 1 October 2026, taking the typical annual figure for a dual-fuel household paying by Direct Debit from £1,663 to £1,723.

That's an increase of £60 a year, or around £5 a month if the October rates remained unchanged for a full year.

But the headline 4% increase doesn't tell the whole story.

Gas and electricity prices are changing by very different amounts. For households using a gas boiler, the increase in gas prices is particularly important as we head into the colder months and heating demand begins to rise.

What is the energy price cap from October 2026?

The energy price cap for a typical dual-fuel household paying by Direct Debit will be £1,723 a year from 1 October to 31 December 2026.

The previous figure for July to September was £1,663.

It's important to understand that £1,723 is not a maximum amount that your energy bill can reach.

The price cap limits the rates an energy supplier can charge customers on default tariffs. Your actual bill still depends on how much gas and electricity you use, where you live, how you pay and the type of meter you have.

Use more energy and you can pay considerably more than £1,723. Use less and your annual costs can be lower.

When does the new energy price cap start?

The new rates apply from 1 October until 31 December 2026.

Ofgem reviews the energy price cap every three months, so these rates are not guaranteed to continue throughout 2027.

The cap covering January to March 2027 is due to be announced on 25 November 2026.

How much are gas prices increasing in October?

Gas is responsible for much of the increase households will see under the October price cap.

For somebody paying by Direct Debit on a standard variable tariff, the average gas unit rate increases from 7.33p per kWh to 7.97p per kWh.

The average daily gas standing charge also increases from 29.04p to 29.68p.

That increase in the unit rate is particularly relevant for homes with gas central heating because the amount of gas used typically increases substantially once colder weather arrives.

Why are gas prices rising?

Ofgem has attributed the October price cap increase primarily to higher wholesale gas prices.

Wholesale energy costs are one of the factors used to calculate the price cap. When the cost of buying gas on the wholesale market increases, that can ultimately feed through to the rates households pay.

This means the October increase isn't being distributed evenly between gas and electricity.

What does the price cap rise mean for gas boiler heating costs?

If your home uses a gas boiler for central heating, the higher gas unit rate means every kilowatt hour of gas covered by the new average rate will cost more.

How much difference that makes to your household depends heavily on your gas consumption.

A larger property that requires substantial heating will generally use more gas than a smaller, well-insulated home, while thermostat settings, heating schedules, insulation and weather conditions can all affect consumption.

The £60 headline increase therefore shouldn't be interpreted as the amount every household with a gas boiler will pay.

For heating costs, your own gas usage is far more important.

What is happening to electricity prices?

Electricity is changing much less dramatically.

The average electricity unit rate for a Direct Debit customer on a standard variable tariff increases from 26.11p per kWh to 26.32p per kWh.

At the same time, the average electricity standing charge falls from 57.19p to 54.83p per day.

This difference between gas and electricity is important when looking at the 4% headline increase. Households that use relatively little or no gas may experience a very different change from homes that rely heavily on gas heating.

Ofgem has said households that don't use gas will see a much smaller increase of less than 1%.

Why is VAT being removed from electricity bills?

From 1 October 2026, the government is temporarily reducing VAT on qualifying domestic electricity in Great Britain from 5% to 0%.

The zero rate is currently scheduled to remain in place until 31 March 2027.

This applies to domestic electricity rather than gas, which continues to have 5% VAT applied.

The VAT change helps explain why electricity costs are remaining relatively stable while the overall energy price cap is increasing.

Does the electricity VAT change apply to fixed tariffs?

The VAT reduction isn't limited to households on the energy price cap.

The government has said the change will also be applied automatically to domestic electricity customers on fixed tariffs.

This is separate from the price cap itself.

If you're on a fixed energy tariff, the October price cap does not determine the gas or electricity unit rate you've already agreed with your supplier. However, the temporary electricity VAT reduction can still affect what you pay for electricity.

Does the price cap apply if you're on a fixed tariff?

No. The energy price cap applies to default tariffs, including standard variable tariffs.

If you've agreed a fixed tariff with your energy supplier, your agreed tariff determines your unit rates rather than the new price cap rates.

That doesn't necessarily mean a fixed tariff will always be cheaper.

When comparing tariffs, consider the actual gas and electricity unit rates, standing charges, length of the fix and any exit fees rather than comparing only the headline annual figure.

Will your heating bill rise by 4%?

Not necessarily.

The 4% figure describes the change in Ofgem's headline price cap for a typical dual-fuel household. It doesn't mean every household's energy bill will automatically increase by exactly 4%.

A household that relies heavily on gas heating could experience the changes differently from an electricity-heavy household.

Your heating costs will ultimately depend on factors including:

• Your heating fuel

• How much energy you use

• Your energy tariff

• Your property's heat loss

• How you control your heating

• Weather conditions over the winter

This is why looking at the individual gas and electricity rates gives a clearer picture than relying solely on the £1,723 headline figure.

Can you reduce your heating costs this winter?

The price you pay for each unit of energy is only one part of your heating bill. The other is how much energy your home needs.

Using your heating controls appropriately can help avoid heating your home unnecessarily. Your thermostat, heating schedule and individual radiator controls can all influence when and where heat is delivered.

Boiler condition also matters. If you have concerns about how your boiler is operating, unusual behaviour or recurring faults should be properly investigated rather than ignored in an attempt to reduce energy use.

Avoid making internal boiler adjustments yourself. Boiler servicing and repairs should be carried out by a suitably qualified professional.

What happens to the energy price cap next?

The £1,723 price cap only covers 1 October to 31 December 2026.

Ofgem is scheduled to announce the price cap for 1 January to 31 March 2027 on 25 November 2026.

That means households shouldn't assume October's rates will continue throughout the rest of winter.

Energy prices can move in either direction as wholesale costs and other components of the price cap change.

For now, households with gas heating should be particularly aware of the higher gas unit rate as the heating season begins. Checking your tariff, understanding your actual energy consumption and using your heating controls effectively can give you a much clearer idea of what the October changes are likely to mean for your own bills.