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Understanding the Basics
If you have solar panels on your home, you may be able to sell unused electricity back to the grid. In the UK, this usually happens through the Smart Export Guarantee, known as the SEG. It allows energy suppliers to pay you for each unit of electricity you export.
This is different from the old Feed-in Tariff scheme, which is now closed to new applicants. The SEG does not pay a fixed national rate, so prices vary between suppliers. That means it is worth comparing deals before you choose one.
How the Smart Export Guarantee Works
Your solar panels generate electricity during the day, and your home uses as much as it can first. Any surplus electricity that is not used right away can be sent to the grid. A smart export meter records how much you export.
Most suppliers will pay you based on the exported amount shown by your meter. Some tariffs are fixed, while others may change over time. The payment is usually made monthly or quarterly, depending on the supplier.
What You Need to Get Started
To sell electricity back to the grid, you will normally need a solar PV system and an export meter. If your current meter is not smart, your supplier may need to replace it. In many cases, a smart meter makes the process much simpler.
You will also need to apply to an energy supplier that offers an export tariff. Not every supplier pays the same rate, and some have extra conditions. It is sensible to check whether your system size and meter type are eligible before you apply.
How Much Can You Earn?
How much you make depends on how much electricity you export and the tariff rate you receive. Homes with higher daytime generation and lower daytime use may export more. Summer months often produce more, so payments can be higher then.
It is important to remember that export payments usually do not cover all the cost of installing solar panels. They are best seen as an extra benefit that helps improve your return over time. The bigger your system and the more unused electricity you generate, the more you may earn.
Tips to Increase Your Export Income
Try to use electricity while your panels are generating power, as this reduces waste and cuts your bills. Running appliances such as washing machines and dishwashers during daylight can help. Batteries can also store excess solar power for later use, although they add to the upfront cost.
Finally, compare SEG tariffs regularly. Rates and terms can change, and switching supplier may improve your returns. A little research can make selling your solar electricity back to the grid more worthwhile.
Understanding the Basics
If you have solar panels on your home, you may be able to sell extra electricity back to the grid. In the UK, this is usually done through the Smart Export Guarantee. This is called the SEG. It lets energy suppliers pay you for each unit of electricity you send out.
This is not the same as the old Feed-in Tariff scheme. That scheme is now closed to new people. The SEG does not pay one fixed rate across the UK. Prices are different with each supplier. So it is a good idea to compare offers before you choose one.
How the Smart Export Guarantee Works
Your solar panels make electricity in the day. Your home uses what it can first. Any extra electricity that you do not use straight away can go to the grid. A smart export meter counts how much you send out.
Most suppliers pay you for the amount shown on your meter. Some rates stay the same. Others can change over time. Payment is often made every month or every three months, depending on the supplier.
What You Need to Get Started
To sell electricity back to the grid, you usually need solar PV panels and an export meter. If your meter is not smart, your supplier may need to change it. A smart meter can make things much easier.
You also need to apply to an energy supplier that offers an export tariff. Not every supplier pays the same rate. Some also have extra rules. It is sensible to check that your system size and meter type can be used before you apply.
How Much Can You Earn?
How much you earn depends on how much electricity you export and the rate you get. Homes that make more power in the day and use less in the day may export more. Summer often gives more power, so payments can be higher then.
It is important to know that export payments usually do not pay for all the cost of solar panels. They are an extra bonus that can help you get better value over time. The bigger your system, and the more spare electricity you make, the more you may earn.
Tips to Increase Your Export Income
Try to use electricity while your panels are making power. This can reduce waste and lower your bills. You can run things like washing machines and dishwashers in the day. Batteries can also save extra solar power for later use, but they cost more at the start.
Finally, compare SEG rates often. Rates and rules can change. A different supplier may give you more money. A little research can make selling your solar electricity back to the grid more useful.
Frequently Asked Questions
Sell solar electricity back to the grid means exporting excess electricity generated by your solar panels to the utility network in exchange for credit or payment, depending on your local rules and utility program.
In a net metering program, the electricity you export to the grid offsets the electricity you import from the grid, often reducing your bill by crediting your surplus generation at an approved rate.
Eligibility usually depends on having an approved grid-tied solar system, meeting local interconnection standards, having a qualifying utility account, and complying with any program-specific requirements set by your utility or regulator.
You typically need solar panels, an inverter compatible with grid export, required safety disconnects, a utility-approved meter or smart meter, and system components that comply with local electrical and interconnection standards.
Earnings vary widely based on your system size, local electricity rates, export compensation rules, weather, and how much surplus power you produce. Some customers receive bill credits, while others may receive cash payments.
Sell solar electricity back to the grid under net billing means exported electricity is usually credited at a different rate than imported electricity, often lower than retail, whereas net metering may offset usage at or near the retail rate.
Yes, many programs require a bidirectional meter or smart meter that measures both electricity drawn from the grid and electricity exported to the grid so credits and payments can be calculated correctly.
Yes, a battery can store excess solar energy and allow you to export it later when compensation may be higher or when it better matches your usage and utility program rules.
Most locations require electrical permits, building permits, utility interconnection approval, and sometimes inspections before a solar system can legally export electricity to the grid.
Interconnection rules set technical and administrative requirements for connecting your solar system to the grid, including protection settings, equipment standards, paperwork, and approval steps needed before export is allowed.
Yes, many utilities and programs impose limits on the system size eligible for export, often based on your historical usage, service capacity, local grid conditions, or policy caps.
Grid-tied solar systems usually shut down during an outage for safety unless they have special backup equipment such as batteries and a grid-islanding capable system designed for approved backup operation.
Tax treatment depends on local laws and whether you receive cash payments, bill credits, or business income. In many places, residential credits are not taxed as income, but you should confirm with a tax professional.
Renters can sometimes participate if they have permission from the property owner and the building can support a qualifying solar installation or if they join a community solar program that exports power on their behalf.
The timeline varies, but it usually includes design, permitting, installation, inspection, utility approval, and meter activation. This process can take from a few weeks to several months.
Typical maintenance includes occasional panel cleaning, inverter monitoring, electrical inspections, checking for shading or damage, and verifying that the system is operating correctly and exporting when expected.
No, an off-grid system is not connected to the utility network, so it cannot export electricity back to the grid. Only a properly interconnected grid-tied system can do that.
Risks include utility rule changes, lower-than-expected export compensation, equipment failure, permitting delays, and potential export limits. Using approved equipment and understanding your contract can reduce these risks.
Compare export rates, net metering rules, time-of-use pricing, interconnection fees, contract terms, system size limits, and any standby charges to find the program that best matches your energy production and usage.
It can be worth it if your solar system produces surplus electricity, your local export compensation is favorable, and your installation costs are reasonable. The financial value depends on your energy usage, location, and utility policy.
It means your solar panels make more power than you need. You send the extra power to the grid. Your utility may give you credit or pay you for it. The rule depends on where you live.
With net metering, the power you send to the grid lowers the power you take from the grid. This can make your bill smaller. You may get credit for the extra power you make.
You usually need a solar system that can connect to the grid. It must meet local rules. You also need a utility account that fits the program rules.
You usually need solar panels, an inverter, safety switches, and a meter that works with the grid. All parts must meet local safety rules.
It depends on many things. These include the size of your system, local power prices, and how much extra power you make. Some people get bill credit. Some get money.
With net billing, the power you send to the grid is usually paid at a lower rate. With net metering, it may count more like the power you use from the grid.
Yes. Many programs need a special meter. It must measure power you use from the grid and power you send to the grid.
Yes. A battery can save extra solar power. You can send it to the grid later. This may help if the payment is better later in the day.
You may need electrical permits and building permits. You also need approval from your utility. Some places also need an inspection.
These rules tell you how to connect your system to the grid. They cover safety, equipment, forms, and approval steps. You must follow them before you can export power.
Yes. Many programs have size limits. The limit may depend on how much power you use, your service size, or local rules.
Most grid-tied systems stop working during a power cut. This is for safety. A battery system with special backup parts may work in a different way.
Tax rules depend on where you live. Cash payments and bill credits may be treated in different ways. Ask a tax expert if you are not sure.
Sometimes, yes. You need permission from the property owner. The building must also work for solar. Some renters join a community solar program instead.
It can take a few weeks or several months. The steps may include design, permits, installation, inspection, utility approval, and meter setup.
You may need to clean the panels sometimes. You should also check the inverter, look for damage, and make sure the system is working well.
No. An off-grid system is not connected to the utility grid. So it cannot send power back to the grid.
Risks include rule changes, lower payments, equipment problems, and delays. Approved equipment and clear contracts can help lower these risks.
Look at the payment rate, the rules, the fees, and the contract terms. Also check system size limits and any extra charges. Choose the program that fits your home best.
It can be worth it if your solar panels make extra power and your utility pays a fair rate. It also depends on your costs, where you live, and how much power you use.
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