Smart Export Guarantee (SEG) Explained
The Smart Export Guarantee (SEG) is the UK scheme that pays households for solar electricity exported to the grid. In 2026, fixed rates from 6 major suppliers range from 4p to 16.5p per kWh, with Octopus Flux paying up to 28p/kWh at 4–7pm peaks. Eligibility requires MCS certification and a working smart meter.
What is the Smart Export Guarantee?
The SEG is the UK mechanism that pays households and small generators for electricity they export to the national grid. It replaced the Feed-in Tariff in 2020.
Electricity suppliers with 150,000+ customers are required by Ofgem to offer at least one SEG tariff. Rates must be above zero, but suppliers set their own rates and terms.
As of early 2026, over 270,000 installations are registered for SEG payments, generating over 1,585 MW of capacity.
Current SEG Rates by Supplier (2026)
In 2026, tied tariffs (available only to the supplier's own import customers) pay significantly more than untied rates. The highest fixed rate is E.ON Next Export Exclusive at 16.5p/kWh; the highest variable rate is Octopus Flux at up to 28p/kWh during 4–7pm peaks.
| Supplier | Fixed Rate | Variable/Tied | Notes |
|---|---|---|---|
| Octopus Energy (Outgoing Fixed) | 15p/kWh | Flux up to 28p/kWh (4–7pm) | Best all-round; Flux needs a battery |
| E.ON Next Export Exclusive | 16.5p/kWh | — | Tied to E.ON import customers |
| EDF Export+ | 12p/kWh (tied) | — | Higher rate for EDF import customers |
| British Gas Export & Earn Plus | 6.4p/kWh | — | Tied fixed rate |
| OVO SEG Tariff | 4p/kWh | — | Simple flat, untied |
| Scottish Power SmartGen+ | 12p/kWh (tied) / 4p (untied) | — | Two-tier rate |
Rates as of 2026. 50+ tariffs exist from 11+ licensees. Always verify live rates with the supplier before signing. Sources: Ofgem, Which?, supplier websites.
Eligibility Requirements
MCS Certification
Your system must be installed by an MCS-certified installer. This is the industry quality mark for small-scale renewables.
Smart Meter
A working smart meter is required for accurate export measurement. If you don't have one, your supplier can install one.
Supplier Registration
Apply directly with your chosen SEG licensee. You don't have to use the same supplier for import and export.
How to Apply for SEG
Confirm Eligibility
Ensure your system is MCS-certified and you have a smart meter.
Gather Documents
MCS certificate, smart meter confirmation, and install details.
Choose a SEG Licensee
Compare rates from 10+ licensees. You don't have to use your import supplier.
Apply Online
Submit via supplier website. Free, no standing charge. Payments start post-approval.
Fixed vs Variable SEG Tariffs
Fixed Tariffs
- • Set rate per kWh (e.g. 15p/kWh), same anytime
- • Predictable, stable earnings
- • Most common type — typically 1–15p/kWh
- • Best for: households without batteries
Variable / Time-of-Use Tariffs
- • Rate varies by time or wholesale prices
- • Higher potential: up to 28p/kWh at peak (4–7pm)
- • May require battery or same-supplier import
- • Best for: battery owners who can time exports
For a 4 kWp system exporting 1,500 kWh/year, top rates yield £225/year vs low rates at £15/year. Choosing the right tariff matters.
Frequently Asked Questions
Get a SEG-Ready Solar Quote
We design every quote with SEG readiness in mind — MCS certification and smart meter compatibility included.
Get My Solar Quote