If you are considering installing solar panels on your home, you will likely want to understand how much money they could actually save you. Solar panels can reduce your electricity bills and, in some cases, allow you to earn money by exporting unused electricity back to the grid. But how much you can save will depend on a range of factors including the size of the system, how much electricity you use, and current energy prices.
How do solar panels reduce your electricity bills?
Solar panels generate electricity from daylight. When your system is producing energy, your home can use that electricity instead of buying it from your energy supplier.
Every unit of electricity you generate and use yourself means one less unit you need to purchase from the grid. Since electricity prices in the UK have increased significantly in recent years, generating your own power can provide meaningful savings.
For example, if your solar panels generate a large portion of the electricity you use during the day, you may notice a significant reduction in your monthly energy bills.
What are the typical savings?
Most residential solar systems installed in the UK are around 3.5 to 4 kilowatts (kW) in size. A system of this size typically generates 3,000 to 4,000 kilowatt hours (kWh) of electricity per year.
The amount you save depends on how much of that electricity you use directly in your home. Many households use around 40% to 60% of the energy they generate, while the rest may be exported to the grid.
Based on current electricity prices, this level of self-consumption can lead to annual savings of approximately:
- £300 to £500 through reduced electricity bills
- Additional earnings if you export electricity through the Smart Export Guarantee
Combined, these benefits can bring total yearly financial gains to £400 to £700 or more for some homes.
How can you earn money through the Smart Export Guarantee?
If your solar panels generate more electricity than you need, the surplus energy can be exported to the national grid. Through the Smart Export Guarantee (SEG), energy suppliers pay homeowners for this exported electricity.
SEG rates vary depending on the supplier, but you receive a payment for each kilowatt hour you export. While export payments are usually smaller than the savings from using electricity yourself, they still contribute to your overall financial return.
For some households, export payments can add £50 to £150 per year to the value of their solar power system.
The impact of battery storage
Adding a solar battery can increase your potential savings. A battery stores excess electricity produced during the day so that you can use it later, such as in the evening when solar panels are no longer generating power.
Without a battery, a large portion of your solar energy may be exported. With storage, you can use more of the electricity you generate yourself, which is often more financially beneficial than exporting it.
Although batteries increase the upfront cost of a solar installation, they can improve long-term savings for households with higher energy use.
Factors that affect your solar savings
The exact amount you save with solar panels depends on several important factors.
Your electricity usage: Homes that use more electricity during the day benefit the most from solar panels, because they can directly use more of the energy produced.
System size: Larger systems produce more electricity, which can increase your potential savings. However, the system should still be appropriately sized for your household’s energy needs.
Electricity prices: The higher the price of electricity from the grid, the more money you save by generating your own power. If electricity prices continue to rise, solar panel savings may increase as well.
Roof orientation and shading: Solar panels generate the most electricity when installed on a south-facing roof with minimal shading. Roofs facing east or west can still perform well but may produce slightly less energy overall.
What are the long-term financial benefits?
Solar panels are designed to last for decades. Most manufacturers offer performance warranties of 20 to 25 years, and many systems continue producing electricity for even longer.
Because of this long lifespan, the cumulative savings can be substantial. If you save an average of £500 per year, you could potentially save £10,000 to £12,000 or more over the lifetime of your system.
Once the installation has paid for itself, the electricity generated by your solar panels continues to reduce your energy costs.
So how much money do solar panels save?
Solar panels can save most households hundreds of pounds each year on electricity costs, with typical annual savings ranging from £300 to £700 depending on the system and household energy use.
Over the lifetime of the system, these savings can add up to many thousands of pounds. While the exact amount varies from home to home, solar panels remain one of the most effective ways to reduce energy bills while generating clean electricity for your household.
For more information or advice, why not contact the experts today, here at the Eco Renewables Group? We work across the UK, from Norwich to Nottingham, to deliver high quality solar power solutions.
