Smart Export Guarantee

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Last updated: 20 July 2020

What Is the Smart Export Guarantee?

In June of 2019, the UK set a goal to reach net-zero carbon emissions by 2050. As part of pursuing that target, on 1 January 2020, the government instituted the Smart Export Guarantee (SEG) scheme. You might have heard of it already, but do you know what it entails and how you can qualify?

The SEG offers export tariffs for a variety of small-scale low-carbon energy generating technologies, as a means to encourage UK homeowners to pursue renewable energy. The Feed-in Tariff ended in 2019, and this new scheme replaces the FIT programme. Whether you already receive FIT payments or are new to renewables, you should learn about the SEG.

Under the SEG, energy companies will offer you tariffs for the renewable energy you export to the National Grid. You must meet some criteria to receive these tariffs, though. Both of these schemes encourage the uptake of domestic green energy use.

Read Our SEG Guide

What Do I Need to Qualify for the SEG?

The SEG provides export tariffs for a variety of small-scale, low-carbon energy generation technologies for UK homeowners. Specifically, the SEG covers:

  • Solar panels (photovoltaic systems)
  • Hydropower
  • Wind power
  • Anaerobic digestion
  • Micro combined heat and power (CHP)

The total capacity for the first four categories cannot exceed 5MW to qualify for the SEG. For Micro CHP, on the other hand, the max is 50kW. No matter what kind of system you have, you also need to have an export meter.

Smart meters make it more convenient for you, as they take measurements every half hour and automatically send the readings to your SEG licensee. If you have to take readings manually, discuss with your licensee how that will work.

Here's a closer look at each one of the included technologies under the SEG.

Solar Photovoltaic Systems

Solar energy is one of the most popular ways to generate low-carbon energy. There are no requirements about what kind of photovoltaic systems you need in order to qualify, as long as they create less than 5MW of electricity. That said, you do need to prove your solar installation is MCS certified.

What that certification looks like varies depending on your energy supplier. Under the SEG, different licensees can choose how they certify installations. To find out what criteria you need to meet, talk to whichever SEG licensee you want to go with.

For systems less than 50kW, you also have to prove your installer is certified. Most domestic solar panel systems fall under this category. The most common sizes are 4kW systems, 5kW systems, or 6kW systems.

If you have a microgeneration certification scheme (MCS) certificate, that will qualify. If not, your installation and installer must have EN 45011 or EN ISO/IEC 17065:2012 accreditation.

How Does the SEG Work With Solar Battery Storage?

If you're familiar with solar power, you probably know about the advantages of solar battery storage. Without these storage solutions, you can only use electricity from solar panels during the day. With batteries, however, you can store this energy to use at any time — for example, during the evening when the sun has gone down.

The SEG is an export tariff, so you only get money for what you sell to the grid. If you store your excess solar energy in batteries, you won't get any tariffs for it.

However, solar storage is covered by the SEG in some instances, meaning that if you export stored energy you could still qualify for the export tariff. This differs with suppliers, though, so be sure to consult your licensee first.

Hydropower

Hydropower, energy that you generate from water, is another popular choice for renewable electricity. It is far less common than solar power, though. According to Ofgem, hydropower schemes generate 1.5% of the country’s electricity — largely from large-scale systems.

That's not to say you shouldn't pursue these technologies on a domestic level, though. The UK has been a world leader in hydroelectricity for about as long as the technology has been around. If you live in Wales or Scotland, these technologies might be particularly advantageous to you.

If you want SEG tariffs for hydropower, you have to meet the same requirements for solar power of more than 50kW. You need to provide an installation certification, but don't need any such proof regarding your installer. There are no differences in the requirements for hydro systems of less than 50kW.

Wind Power

Wind is the UK's leading renewable power source, accounting for 20% of energy generation in late 2019. Most of it comes from large-scale farms, but you can still use it at home. The equipment may be more expensive than some other options, but it's still a viable option.

As far as qualifications go, wind follows the same rules as solar PV under the SEG. For anything under 50kW, you'll need both an installation and an installer certification. If your system produces between 50kW and 5MW, you will only need to provide proof of the installation certification.

Anaerobic Digestion

Even if you are familiar with renewables, you may not know what anaerobic digestion is. This is the process of breaking down organic material to produce biogas. You can then use this biogas as an energy source that isn't emissions-free but is renewable.

Digesters use microorganisms like bacteria to break down materials like manure, food waste, and wastewater. When these organisms interact with these materials in an oxygen-free environment, they produce natural gas, which is mostly methane. It may be an uncommon process for residential use but is ideal for farmers.

The SEG treats anaerobic digestion the same way it does hydropower. No matter how little you generate, you only need an installation certification. You will, however, need to provide additional documents to prove your system complies with SEG guidelines.

Micro Combined Heat and Power (CHP)

Micro combined heat and power is a system that generates electricity and warmth at the same time. It's not always carbon-free, but since they accomplish these two tasks at once, it reduces emissions. A lot of businesses use CHP since it can significantly reduce both energy costs and environmental impact.

Reciprocating internal combustion engines are one of the most popular micro CHP technologies. Many of these run on natural gas to make them even more environmentally-friendly. Fuel cells are another type of micro CHP, but you don't see them as often.

Micro CHP technologies only qualify for Smart Export Guarantee tariffs if their capacity is 50kW or less. Like with solar and wind power, if your micro CHP system generates less than 50kW, you will need both an installer and an installation certification.

How Much Can You Make Selling Energy Back to the Grid?

Although the SEG is replacing the Feed-in Tariff, it doesn't offer the same rewards for the energy you generate. While the Feed-in Tariff included both export and generation tariffs, the SEG only provides the former. In other words, you only get tariffs for the renewable energy you don't use.

How much you can get through these export tariffs varies depending on your SEG licensee. The Smart Export Guarantee scheme allows companies to decide their own rates, as long as it's more than zero. Currently, you can get between 2-5.6p per kWh.

SEG Licensees and Export Tariffs
Electricity Supplier Licensee Type Tariff Type Tariff Name Tariff Rate (p/kWh) Payment Frequency Battery Storage Export
Social Energy Voluntary Variable Smarter Export 5.6p Monthly Yes
Octopus Energy Mandatory Fixed & Variable Outgoing Octopus

Fixed: 5.5p

Variable: ½ hourly rate

Unknown Unknown

E.ON

(also available for Npower customers)

Mandatory Fixed Fixed & Export 5.5p

12 months

(3 months possible)

Unknown
Bulb Mandatory Fixed Vari-Fair 5.38p 3 months Case by case
SO Energy Mandatory Fixed Smart Export Tariff 5p Unknown Unknown
OVO Energy Mandatory Fixed OVO SEG Tariff 4p 3 months Case by case
Scottish Power Mandatory Fixed Smart Export Variable 4p 6 months No

EDF Energy

Mandatory Fixed Export+Earn 3.5p Unknown Unknown
Shell Energy Mandatory Variable SEG Tariff 3.5p 12 months Yes, excluding brown energy
SSE Mandatory Variable Smart Export Tariff 3.5p 12 months Unknown
British Gas Mandatory Variable Smart Export Tariff 3.2p 6 months Yes
Avro Energy Mandatory Variable Smart Export Tariff 3p Unknown Unknown
Utilita Mandatory Unknown Smart Export Guarantee 3p Unknown Unknown
Utility Warehouse Mandatory Variable UW Smart Export Guarantee 2p Unknown Unknown

At 5.5 p/kWh, you could earn £165 a year, generating 3,000 kWh, which is around the average household consumption.

Since you would use some of that electricity, a more realistic number is £82.50, which would include you exporting half. Combined with your energy bill savings, though, you could save upwards of £200 a year overall.

How Do You Apply for the SEG?

Applying for the SEG is not a complicated process. There are a few things you should have collected before submitting your application, though, so spend enough time preparing.  

The first thing you need to do in applying is search for a SEG licensee in your area. The SEG licensee can be different than your energy supplier. Since they can offer different rates, you may want to compare a few options.

Before you file any paperwork, make sure you meet all the qualifications. As previously mentioned, some of these vary between licensees, so the process will look different depending on which one you pick.

Prepare all the required information and documents beforehand, namely:

  • A smart meter or half-hourly export meter reading. SEG licensees need up-to-date meter readings to process your application.
  • Your MCS certification (or equivalent)
  • Your proof of ownership. Most licensees stipulate that SEG tariff recipients must be the system owner.
  • The application form. This can be found on the SEG licensee’s website.
  • For anaerobic digestion, a separate, additional form. This can be found on Ofgem’s website.

Once your application has been submitted, you should expect 28 days of processing time.

Your SEG licensee may have to inspect your system before accepting your application.

FAQ about the Smart Export Guarantee

You may still have questions about the Smart Export Guarantee scheme. If so, here are some FAQs about the programme.

1. When Does the SEG Go Into Effect?

The SEG went into effect on 1 January 2020. Many companies are already offering export tariffs, and more will likely come. Energy suppliers with at least 150,000 domestic customers must provide a tariff, whereas suppliers with fewer customers than that can offer export tariffs on a voluntary basis.

2. Who Offers SEG Tariffs?

As of May 2020, these are the available SEG suppliers:

  • Avro Energy
  • British Gas
  • Bulb
  • E
  • EDF Energy
  • E.ON
  • Green Network
  • Green Star Energy (now part of Shell Energy group)
  • Npower
  • Octopus Energy
  • OVO Energy
  • Scottish Power
  • Shell Energy
  • SSE (part of OVO Group)
  • Utility Warehouse
  • Utilita
  • SO Energy
  • Symbio Energy

You can check Ofgem's list of SEG suppliers for any changes.

3. How Long Do SEG Payments Last?

Each SEG licensee has their own terms and conditions, including the contract duration. While most suppliers have a 12-month fixed contract, some may vary, so it is advised to consult the energy supplier for their terms.

4. How Often Will I Receive My SEG Payments?

Depending on the SEG licensee, you will receive your payments anywhere from every 3 months to once per year. Each licensee can set their own payment cycles, and it is important to be aware of when payments are made prior to signing an agreement with your energy supplier.

4. What If I Already Receive FIT Payments?

If you currently receive Feed-in Tariff payments, you can continue doing so for the duration of your FIT contract. Since the FIT scheme includes generation tariffs too, you will make more money if you stick with the FIT scheme. Once your agreement is over, you can switch to the SEG.

Some energy suppliers, like Octopus Energy and SO Energy, allow you to keep your FIT generation tariff and only sign on to their SEG export tariff.

5. Am I Elilgible for SEG Payments if I Received a Government Grant for the Installation?

Yes, you can receive SEG payments if you received an installation grant from the government. The Smart Export Guarantee is separate from installation grants.

6. Can I Receive SEG Tariffs and RHI Payments Simultaneously?

Yes, you can receive both payments at the same time. The SEG supports exporting surplus electricity to the National Grid, while the RHI supports renewable heat generation. You can read more about the RHI in our guide.

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Written by Emily Folk Guest Contributor Emily is a freelance environmental writer who writes on renewable energy, green technology and sustainability. To read more of her writing, you can visit her blog, Conservation Folks, or follow her on Twitter @EmilySFolk
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