Best SEG Rates UK – Compare Solar Export Tariffs & Payments
The Smart Export Guarantee (SEG) allows UK households with solar panels to receive payments for surplus electricity they export back to the grid.
Choosing the right SEG tariff can improve the financial return from your solar installation, especially if your home generates more electricity than it uses during daylight hours.
This guide explains how SEG works, how much solar export payments are worth, how to compare tariffs and how battery storage can affect your decision.
Quick navigation: What is SEG? · SEG rates · Solar export earnings · SEG and batteries · Maximise income · Eligibility · FAQs
Related guides: Solar Payback Calculator UK · Solar Panel Costs UK
What is the Smart Export Guarantee (SEG)?
The Smart Export Guarantee is a UK scheme that requires certain electricity suppliers to pay eligible customers for renewable electricity exported to the grid.
For homes with solar panels, SEG provides a way to earn income from electricity that is generated but not used within the property.
However, the biggest financial benefit of solar usually comes from using your own generated electricity because this avoids buying electricity from the grid.
Best SEG rates UK
SEG tariffs vary between suppliers and can change regularly. The best option depends on your solar system, electricity supplier, export levels and whether you have battery storage.
| Supplier | SEG tariff | Notes |
|---|---|---|
| Octopus Energy | Variable | Known for renewable energy tariffs and smart energy products |
| E.ON | Variable | SEG payments available for eligible customers |
| OVO Energy | Variable | Solar export options available |
| Other suppliers | Variable | Rates change regularly |
Always check current supplier rates before switching because SEG payments can change over time.
How do SEG payments work?
The amount you earn depends on:
Amount exported
The more electricity your solar system exports, the greater your potential SEG income.
SEG tariff rate
Different suppliers offer different payments per kilowatt-hour exported.
Your solar generation
Larger systems may generate more surplus electricity, depending on household usage.
How much can solar export earn?
SEG income depends on how much electricity your home exports rather than uses itself.
| Annual export | Example SEG rate | Potential annual income |
|---|---|---|
| 500 kWh | 5p/kWh | £25 |
| 1,000 kWh | 5p/kWh | £50 |
| 2,000 kWh | 5p/kWh | £100 |
Higher SEG rates can increase income, but reducing the amount of electricity you need to buy from the grid is often the bigger financial benefit.
SEG rates vs battery storage
A common question for solar owners is whether it is better to export electricity or store it for later use.
| Export through SEG | Store with battery | |
|---|---|---|
| Income source | Payment for exported electricity | Reduced electricity purchases |
| Best suited for | High solar surplus | Homes with evening usage |
| Equipment required | Solar export meter | Battery storage system |
Battery storage costs are covered here: Home Battery Storage Costs UK
How to maximise solar export income
- Compare SEG tariffs regularly
- Use electricity during daylight hours where possible
- Consider battery storage if suitable
- Monitor solar generation and household usage
- Choose the right solar system size
SEG eligibility requirements
To receive SEG payments, households generally need:
- A qualifying renewable electricity system
- A suitable export meter
- An SEG tariff with an approved supplier
- Relevant certification where required
Always check current supplier requirements before applying.
SEG payments and the future of home energy
As more households install solar panels, batteries and electric vehicles, the way homes use electricity is changing.
Future energy systems are expected to combine:
- Solar generation
- Battery storage
- Smart tariffs
- Electric vehicle charging
- Vehicle-to-home technology
SEG is likely to remain an important part of the wider home energy ecosystem.
Want to understand your solar savings?
SEG income is only one part of the solar financial picture. Your biggest savings often come from using your own generated electricity.
Best SEG rates UK: FAQs
What is the highest SEG rate in the UK?
SEG rates change regularly between suppliers, so the highest-paying tariff can vary over time.
Is SEG income taxable?
For many domestic solar installations, SEG payments are not normally treated as taxable income, but individual circumstances can vary.
Is SEG better than battery storage?
It depends on your situation. Batteries can allow more solar electricity to be used at home, while SEG provides payment for exported electricity.
Can I change SEG supplier?
Many households can switch SEG provider if another tariff better suits their circumstances.
Do I need solar panels to receive SEG payments?
SEG is designed for eligible renewable electricity generators, including qualifying solar panel systems.