How to Apply for the Smart Export Guarantee: A Step-by-Step UK Guide
If your solar panels or another eligible low-carbon system sends surplus electricity to the grid, the Smart Export Guarantee (SEG) can pay you for each measured unit exported. Payments are not automatic: you must choose an export tariff and apply directly to a participating electricity supplier. Your export supplier can be different from the company supplying your electricity.
This guide explains who qualifies, what paperwork you need, how the export MPAN process works, how to compare tariffs and what to do if your application is delayed. It is written mainly for UK homeowners with solar PV, but the same process applies to eligible landlords, businesses and other small-scale generators in England, Scotland and Wales.
Quick answer
To apply for the Smart Export Guarantee, confirm that your renewable system is eligible and certified under MCS or an accepted equivalent. You will normally need a meter capable of recording half-hourly exports, proof of grid connection, evidence that you own the system or are authorised to receive payments, and an opening export reading.
Compare current tariffs, apply through your chosen supplier’s website and upload the requested documents. The supplier will validate the installation and register or arrange an export MPAN where required. Check when payments begin; never assume they will be backdated.
Who can apply for the Smart Export Guarantee?
SEG applies in Great Britain: England, Scotland and Wales. Northern Ireland has separate export arrangements.
Eligible technologies are:
- Solar photovoltaic panels
- Onshore wind
- Hydroelectric generation
- Anaerobic digestion
- Micro combined heat and power
Most systems must have a total installed capacity no greater than 5MW. Micro-CHP systems are limited to 50kW. A typical domestic solar panel installation will be comfortably within these limits.
The installation and installer must normally be certified through the Microgeneration Certification Scheme, known as MCS, or an accepted equivalent such as Flexi-Orb. You also need metering that records exports in half-hourly periods. In most homes, this means having a correctly configured smart meter.
| Requirement | What to prepare | Why it matters |
|---|---|---|
| Installation certification | MCS, Flexi-Orb or accepted equivalent certificate | Proves the installation meets the required standard |
| Grid connection | DNO confirmation, often G98 or G99 paperwork | Confirms the system is connected correctly |
| Export metering | Smart meter details and export-register photograph | Allows actual exports to be measured |
| Ownership | Invoice, purchase evidence or landlord authority | Shows who can receive payments |
| Account details | Electricity bill, contact and bank details | Identifies the property and payee |
| Opening reading | Clear, dated meter photograph | Establishes the starting export figure |
Supplier checklists vary, but current guidance commonly asks for certification, grid-connection evidence, meter information, ownership details and payment information.
How to apply for the Smart Export Guarantee
1. Collect your installation paperwork
Ask your installer for:
- Your MCS or equivalent certificate
- Commissioning documents
- The installed generation capacity
- Inverter details
- DNO connection confirmation
- Electrical and product warranties
- The system handover pack
Check that the property address, technology and installed capacity match across every document. Even a small discrepancy can lead to additional checks.
If your MCS certificate is missing, contact the original installer or MCS. Replacement certificate services may charge an administration fee, so confirm the current amount before applying.
2. Confirm the DNO connection
Your Distribution Network Operator, or DNO, manages the local electricity network. It is different from your electricity supplier.
Your installer should normally complete the relevant G98 or G99 process and provide written confirmation.
G98 generally applies to smaller installations that meet specified limits, while larger or more complex systems may require a G99 application and prior approval. Your installer should determine which process applies to your property.
If you have bought a house with existing solar panels and cannot find the connection evidence, contact the DNO for your area. Missing network records can delay creation of the export MPAN.
3. Check your export meter reading
Look at the electricity meter itself rather than relying only on the in-home display. Find the total active export register and take a clear photograph showing:
- The export reading
- The meter serial number
- The meter display
- The date the photograph was taken
The button sequence used to display exports differs between meter models.
Government guidance requires a meter capable of providing half-hourly export readings. Some suppliers collect these readings automatically. Others may request manual readings at regular intervals.
4. Compare current SEG tariffs
Start with Ofgem’s current list of Smart Export Guarantee suppliers. Then visit each supplier’s live tariff page and read the full eligibility criteria and terms.
Ofgem publishes lists of mandatory and voluntary SEG licensees for each scheme year, but suppliers can change their rates and product conditions during the year.
Your import and export suppliers do not have to be the same company. You could buy electricity from one supplier while receiving export payments from another.
However, some of the more attractive export rates are restricted to customers who also buy their imported electricity, solar panels or battery system from that supplier.
| Compare | Why it matters | Question to ask |
|---|---|---|
| Export rate | Determines payment per kWh | Is it fixed, variable or time-of-use? |
| Eligibility | Headline rates may be restricted | Must I take an import tariff or own a particular system? |
| Contract terms | A higher rate may involve conditions | Is there a fixed term, exit fee or notice period? |
| Battery rules | Grid-charged exports may be treated differently | Which battery exports qualify? |
| Payments | Affects administration and cash flow | Are readings automatic and how often am I paid? |
| Start date | Determines which exports are credited | When does payment eligibility begin? |
Do not select a tariff based solely on the headline payment rate. A slightly lower rate with straightforward eligibility, reliable readings and flexible contract terms may be better for your circumstances.
5. Apply directly to your chosen supplier
Complete the supplier’s online SEG application form using the details shown on your electricity bill and installation certificates.
You may be asked to provide:
- Your import MPAN
- Your smart meter serial number
- Your MCS certificate number
- The installation date
- The installed system capacity
- DNO documentation
- Proof of ownership
- An opening export reading
- Bank details
Upload clear, complete files rather than cropped or blurred screenshots. Keep a copy of the application, reference number, tariff terms and opening meter photograph.
SEG licensees set their own payment rates, contract lengths and application processes. An SEG tariff must remain above zero, and scheme payments are based on actual export meter readings.
6. Register the export MPAN
An export Meter Point Administration Number identifies electricity exported from your property. It is separate from the import MPAN shown on your electricity bill, even when one smart meter measures electricity moving in both directions.
Your SEG supplier may request a new export MPAN from the DNO or enrol one that has already been created.
This stage can be one of the slowest parts of the process. For example, Octopus currently estimates one to four weeks for DNO creation of an export MPAN, although timescales vary by network and are not guaranteed.
Avoid asking both your installer and supplier to request separate export MPANs without first checking who is responsible. Duplicate records can make future tariff transfers more difficult.
7. Submit the opening export reading
Once the export MPAN has been registered or enrolled, your supplier may request an opening meter reading.
Submit it promptly and confirm the following in writing:
- Your tariff rate
- The contract start date
- Whether earlier exports will be credited
- How readings will be collected
- How often payments will be made
- Whether payments will be made by bank transfer or account credit
When your first statement arrives, check that the correct opening reading and payment rate have been used.
How long does an SEG application take?
There is no universal application timescale.
A straightforward application may be completed within a few weeks. More complicated cases can take longer, especially when an export MPAN must be created or network records need correcting.
Delays commonly arise from:
- Missing or incorrect certificates
- Mismatched property addresses
- Missing DNO evidence
- Unclear system ownership
- Export meter communication problems
- Incorrect meter serial numbers
- Duplicate or incomplete MPAN records
When chasing an application, ask which exact stage remains outstanding: document validation, DNO confirmation, MPAN creation, MPAN enrolment, meter communication or tariff activation.
Do not assume that every supplier will backdate payments to the installation or application date. Check the written tariff terms and request confirmation before relying on backdated payments.
What does applying cost, and is SEG worth it?
There is normally no separate government fee to join the Smart Export Guarantee.
Costs may arise if you need replacement documents, electrical remedial work, a meter change or professional help resolving a non-standard installation. Ask for written confirmation before authorising chargeable work.
SEG is generally worth arranging because it creates income from electricity that would otherwise be exported without payment. The amount you earn will depend on:
- Your export tariff
- The amount of electricity exported
- Your property’s daytime consumption
- Whether you have battery storage
- Seasonal solar generation
- Any tariff restrictions
Ofgem reported that 270,395 installations were registered at the end of SEG Year 5. During that year, £56.97 million was paid for 443.1GWh of reported low-carbon electricity exports.
Common reasons SEG applications are rejected or delayed
The most frequent problems include missing MCS certificates, inconsistent addresses, absent G98 or G99 evidence, unreadable meter photographs and unclear ownership.
To reduce the risk:
- Use the same name and address on every form.
- Check that the system capacity is correct.
- Save dated meter photographs.
- Keep the complete installer handover pack.
- Respond quickly to requests for additional information.
- Keep written records of calls and emails.
- Ask for a formal complaint reference when appropriate.
If a complaint remains unresolved, use the supplier’s formal complaints process. The Centre for Sustainable Energy advises that unresolved cases can be taken to the Energy Ombudsman after eight weeks.
Can you claim SEG with a solar battery?
Having a battery does not automatically prevent SEG eligibility.
However, suppliers are not required to make SEG payments for electricity imported from the grid, stored in a battery and later exported. Some tariffs accept battery exports, while others require evidence separating renewable generation from grid-charged electricity.
Before applying, ask the supplier:
- Whether battery exports qualify
- Whether grid charging is permitted
- Whether a specific meter configuration is required
- Whether the tariff works with your battery brand
- Whether there are export limits or time windows
Can you receive FIT and SEG payments together?
You cannot receive both Feed-in Tariff export payments and Smart Export Guarantee payments for the same exported electricity.
You may be able to keep your FIT generation payment while opting out of the FIT export element and moving to an SEG tariff. Compare the financial effect and switching rules carefully before making a change.
What happens when you move home?
Take a final export meter reading on the day you leave and notify the SEG supplier.
The new owner will normally need to make a new application and provide proof that they own the renewable installation or are authorised to receive its export payments. An existing SEG contract does not normally transfer automatically with the property.
Why your solar installer matters
A straightforward SEG application begins before the solar panels are commissioned.
A competent, appropriately certified installer should:
- Complete the correct DNO process
- Configure the inverter and meter correctly
- Register the installation
- Supply the MCS certificate
- Provide grid-connection evidence
- Explain how to find the export reading
- Deliver a complete handover pack
Poor paperwork can delay export payments and create future problems involving warranties, network compliance, system ownership or battery upgrades.
Choose an installer based on certification, technical competence, aftercare and evidence of completed work—not price alone.
Before signing an installation contract, ask who will handle MCS registration, DNO notification, export-meter checks and the final handover documents. Book a free survey with Simple Green Energy to discuss a compliant solar system designed for long-term savings and straightforward export payments.
Frequently asked questions (FAQs)
Clear answers about applying for the Smart Export Guarantee, export MPANs, smart meters, MCS certificates, G98 and G99 documents, supplier requirements and payment backdating. Speak to Simple Green Energy .
Need help completing an SEG application?
Speak with Simple Green Energy about your export MPAN, smart meter, MCS certificate, DNO paperwork, supplier registration and the evidence needed to activate an export tariff.
Check my SEG documentsConclusion:
Applying for the Smart Export Guarantee means confirming eligibility, gathering certification, checking the grid connection and meter, comparing tariffs, submitting the application and completing export MPAN registration.
The best tariff is the best deal you genuinely qualify for—not simply the highest advertised rate.
Prepare your paperwork early, photograph the opening meter reading and keep written records. These steps can prevent avoidable delays and help ensure you are paid accurately for the renewable electricity your property exports.
