Households across Great Britain are facing another increase in energy costs this autumn, with the latest Ofgem price cap rising by 4% from October 2026.
This increase means the typical household’s annual energy bill will rise from £1,663 to £1,723, based on Ofgem’s updated typical domestic consumption figures. Using the previous consumption methodology, the equivalent figure rises from £1,862 to £1,935.
For homeowners already concerned about the cost of electricity and gas, the latest announcement raises an important question: could solar panels and battery storage help reduce exposure to rising energy prices?
For many homes, generating more of their own electricity can significantly reduce the amount of power they need to purchase from the grid.
Energy Price Cap Rises Again from October
The energy price cap limits the maximum unit rates and standing charges suppliers can charge customers on a standard variable tariffs. It does not put a maximum on the total amount a household can spend, because the final bill depends on how much energy is actually used.
From 1 October 2026, Ofgem’s latest price cap represents a 4% increase for a typical household.
That follows a much larger 13% increase introduced in July, which took the previous headline figure to £1,663 under Ofgem’s updated consumption methodology. The latest increase means households are once again facing higher electricity and gas costs heading into the winter months.
For homeowners, this highlights one of the biggest challenges of relying entirely on the grid: energy prices can change, while the cost of generating electricity from a solar PV system is largely fixed once the system has been installed.
What Are Energy Bills Increasing?
Energy prices are influenced by a wide range of factors, including wholesale gas and electricity prices, network costs, government policies and wider international events. Recent increases have been particularly affected by volatility in global energy markets. Wholesale gas prices have risen significantly following geopolitical disruption, contributing to higher household energy costs.
The UK’s dependence on imported gas also means domestic energy bills can be affected by events well beyond the control of individual households. This is one reason renewable energy technologies such as solar PV and battery storage are becoming increasingly relevant to homeowners looking for greater control over their energy costs.
How Can Solar Panels Reduce Your Electricity Bills?
Solar panels generate electricity from daylight, allowing your home to use renewable electricity generated on your roof. When your solar panels are producing electricity, your home can use that power instead of purchasing as much electricity from your energy supplier.
For example, during daylight hours, solar generation could help power:
- Appliances and kitchen equipment
- Lighting
- Home offices
- Washing machines and dishwashers
- Heat pumps
- Electric vehicle charging
- Other household electrical loads
The more of your solar generation you can use directly, the less electricity you need to purchase from the grid. This is known as self-consumption. A properly designed solar PV system can therefore help reduce your reliance on grid electricity and make your household less exposed to future changes in electricity prices.
Solar Panels and Battery Storage: An Even More Flexible Solution
One of the biggest challenges with solar energy is that solar generation and household electricity demand do not always happen at the same time. Your solar panels may produce the most electricity around the middle of the day, while your household may use more electricity in the morning or evening.
This is where a home solar battery can make a significant difference. Instead of exporting surplus solar electricity immediately, a battery can store the excess for use later in the day or overnight. This can increase the amount of your solar electricity that you use yourself and reduce your reliance on grid electricity.
Battery storage can also provide greater flexibility when combined with suitable time of use electricity tariffs, allowing homeowners to take advantage of cheaper electricity periods where appropriate.
Could Solar Protect You from Future Energy Price Rises?
Solar panels cannot completely eliminate your energy bill. Most homes will still have some electricity costs, particularly during periods of low solar generation. There are also standing charges and other costs that aren’t removed simply because you have solar panels.
However, generating your own electricity can reduce the amount of electricity you need to buy from your supplier. This is particularly relevant when electricity prices rise.
Imagine that a household consumes 4,000 kWh of electricity each year. If a solar PV system enables the household to generate and use a significant proportion of that electricity itself, fewer units need to be purchased from the grid.
If grid electricity becomes more expensive in the future, the potential value of those avoided purchases increases. In other words, solar isn’t simply about today’s electricity price. It is also an investment in reducing your future exposure to electricity price volatility.
What Happens to Excess Solar Electricity?
A well designed solar PV system can generate more electricity than your home needs at certain times. Rather than allowing that electricity to go unused, homeowners can export surplus generation to the grid.
Eligible installations can receive payments for exported electricity through the Smart Export Guarantee (SEG). The amount received depends on the export tariff and supplier, so it is important to compare available tariffs rather than assuming all export payments are the same. Most people find their existing energy supplier offers higher export payments for existing customers.
However, from a system design perspective, maximising self-consumption is often an important consideration because using your own solar electricity can reduce the amount of electricity you need to purchase from the grid in the first place.
Solar Panels Can Turn Your Roof into an Energy Asset
For decades, most homeowners have effectively had one option when they needed electricity: buy it from the grid.
Solar PV changes that relationship.
Instead of purchasing every unit of electricity from an energy supplier, a solar powered home can generate a proportion of its own electricity. That doesn’t mean becoming completely independent from the grid. Instead, it means reducing reliance on it.
This distinction is important.
A typical grid connected solar PV system can work alongside your existing electricity supply. The grid remains available when solar generation isn’t sufficient, while your solar panels reduce the amount of electricity you need to purchase when they are generating.
Adding battery storage can take this further by allowing more of your generated electricity to by used after sunset.
Is Solar Still Worth Installing with Energy Prices Changing?
For homeowners considering solar panels in 2026, the latest price cap announcement is another reason to look at the long term economics of generating your own electricity. However, there is no single solar system that is right for every property.
The potential savings depend on factors including:
- Your annual electricity consumption
- Roof orientation and pitch
- Shading from trees or surrounding buildings
- Available roof space
- Solar PV system size
- Your household’s electricity usage patterns
- Whether you have battery storage
- Your electricity tariff
- The amount of electricity exported to the grid
- Installation costs
A professional solar survey should consider these factors before recommending a system. At SolarTherm UK, we assess the individual property and household rather than simply recommending the largest possible system.
What About Solar Panel Payback Periods?
The payback period for a solar PV system varies from property to property. A system that generates significant savings for a household with high electricity consumption may have a different payback period from a smaller system installed for a low energy household. Battery storage also changes the financial calculation because the battery can increase the amount of solar electricity available for use within the home.
The most useful approach is therefore to look at the whole life financial picture, rather than simply asking how much solar panels cost.
This includes the initial installation cost, predicted generation, electricity savings, battery performance where applicable, export income and projected energy prices.
Solar is About More than Today’s Energy Prices
The latest Ofgem announcement demonstrates just how quickly household energy costs can change.
The October 2026 price cap is only one point in a much longer term energy story. The price cap is reviewed every three months, meaning household on standard variable tariffs remain exposed to future changes in the energy market.
Solar PV provides a different position. Once installed, your panels can continue generating electricity for many years, with no fuel bill attached to the electricity they produce.
That makes solar particularly attractive to homeowners looking beyond the next energy price cap and considering how they can reduce their household’s long term energy costs.
Could Now be the Right Time to Consider Solar Panels?
With household energy bills rising again from October, many homeowners will understandably be looking for ways to reduce their electricity costs before prices increase.
Solar panels won’t remove every energy expense, but they can reduce reliance on grid electricity by generating renewable power at home. For households with suitable roofs, combining solar panels with battery storage can provide an even greater opportunity to use home-generated electricity throughout the day and evening.
The right system depends on the property, energy consumption and household requirements, so professional system design is essential.
At SolarTherm UK, we design and install solar PV and battery storage systems for homeowners across Essex, Kent, Suffolk, Hertfordshire and the wider South East and East Anglia, helping households make better use of renewable energy and reduce their reliance on the grid.
Thinking About Solar Panels?
If rising energy bills have prompted you to look at generating your own electricity, SolarTherm UK can assess your property and energy requirements to determine whether solar PV and battery storage could be suitable for your home.
Our experienced team installs MCS certified solar PV and battery storage systems across the South East and East Anglia, with every system designed around the individual property and household.
Contact SolarTherm UK today for a free, no obligation quote and design, tailored to your property, usage and future energy needs. No hard sell, just honest, expert advice – and the time you need to make an informed decision.
Your home. Your energy. Your future.
Frequently Asked Questions
Yes. Ofgem has confirmed that the energy price cap will increase by 4% from 1 October 2026, taking the typical household figure from £1,663 to £1,723 per year.
Yes. Solar panels generate electricity that your home can use instead of buying as much electricity from the grid. Your potential savings depend on factors such as system size, electricity consumption, roof suitability and how much solar energy you use.
A battery can help you use more of the electricity your solar panels generate. Excess daytime generation can be stored and used later when your panels aren’t producing electricity, such as during the evening.
Solar panels cannot eliminate your energy bills or protect against every energy cost. However, generating more of your own electricity can reduce the amount you need to purchase from the grid, helping to reduce your exposure to future electricity price increases.
Yes. Eligible solar PV systems can export surplus electricity to the grid and receive payments through the Smart Export Guarantee (SEG). The amount you receive depends on the export tariff offered by your supplier.
