Supporting customers
Energy Switch Guarantee

Why does the Energy Switch Guarantee (ESG) exist?
Today, it’s more important than ever before to make sure that the energy tariff you have chosen is the right one for you. Whether you’re looking for a different deal or seeking a better standard of customer service, the Energy Switch Guarantee lets you switch with absolute confidence. It’s worth remembering that you don’t always have to switch suppliers to switch your tariff and to get a different deal that works for you.
The Guarantee aims to continually drive higher standards around switching tariffs, pushing the energy sector to go above and beyond what they are required to do by regulation, and to put consumers at the heart of what they do.
What is the Energy Switch Guarantee?
With the Energy Switch Guarantee, checking that the tariff you are on is right for you, or choosing a new tariff, is Simple, Speedy and Safe. Our members strive to ensure that customers across Britain know which tariff is right for them, and to help them move to something different if that would be best.
By signing up to the Guarantee, suppliers commit to deliver to series of standards and targets:
- Customers can switch to a new tariff within 5 working days. Whether you are changing supplier, or simply changing your tariff with your existing supplier, you could be paying new rates and be on a new tariff within a week. If that’s what you want.
- The whole transfer between tariffs or suppliers will be handled by the supplier of the tariff you are moving to. There is nothing for you to do: your supplier will be in touch if they need any more information from you.
- In the unlikely event of any problem occurring, you have the reassurance that the supplier of your new tariff will work to resolve any issue swiftly and efficiently.
- If you change your mind within 14 days, you simply remain with your existing provider or on your existing tariff.
- Any credit that may be due will be refunded within 14 days of your final bill.
Who does the Guarantee apply to?
The Guarantee applies to any domestic household in Britain switching tariff or supplier that involves any of the companies that have signed up.
All of our members sign up voluntarily, making a commitment to drive up their standards and comply with both the letter and spirit of the Guarantee. Not all suppliers are members of the Energy Switch Guarantee.
Our Signatories
Why sign up to the Energy Switch Guarantee?
Improved customer experience
Member board meetings provide a forum in which to identify and resolve switching issues as well as evolve and improve the Guarantee to deliver greater customer benefits
Recognition
Membership to the Guarantee is recognized with an extra 3 stars towards the customer guarantees element of the Citizens Advice energy supplier rating table.
Ofgem, Citizens Advice, Consumer Scotland, the Ombudsman and BEIS are keen to see more energy providers which meet the Guarantee’s high standards sign up.
Review
Members regularly review the workings of the Guarantee to ensure that it spurs healthy competition and promotes best practice. All members are committed to the Guarantee improving year after year.
All licensed electricity and gas energy providers who meet the compliance requirements of the Guarantee are eligible to apply to become signatories. If you would like to enquire about joining, please email admin-energyswitchguarantee@energy-uk.org.uk.
What our Signatories say about the Guarantee
How do we hold members accountable?
Members of the ESG commit to specific standards and have to demonstrate they are meeting certain targets in order to remain part of the ESG.
Quarterly Reporting
Each quarter, Energy Switch Guarantee members are required to submit detailed proof of how they meet set criteria to show they are compliant with the standards of the Guarantee.
We use four ‘Key Performance Indicators’ to measure how our members are performing:
- The percentage of all valid switches between suppliers that are completed within 5 working days. We expect our members to achieve at least 98%
- The percentage of final bills that are issued within the 6 weeks after a customer leaving a supplier. We expect our members to achieve at least 90%
- The percentage of credit refunds issued within the 10 working days of a final statement being produced. We expect our members to achieve at least 90%
- The percentage of all valid switches to a new tariff without changing supplier that are completed within 5 working days. We expect our members to achieve at least 98%
Below is the overall performance of ESG members
Switching to a new tariff with a new supplier | Final Bills | Credit Refunds | Switching to a new tariff with your current supplier | |
---|---|---|---|---|
Target | 98% | 90% | 90% | 98% |
Overall signatory performance – October – December 2023 | 99.7% | 96.5% | 98.3% | 99.7% |
Overall signatory performance – January – March 2024 | 99.6% | 96.8% | 98.5% | 99.7% |
Overall signatory performance – April – June 2024 | 99.73% | 95.51% | 98.80% | 99.83% |
Overall signatory performance – July – September 2024 | 99.47% | 96.65% | 98.50% | 99.74% |
Panel Hearings
Every year, our Expert Panel holds a hearing with suppliers where we explore in detail how they are complying with specific areas covered by the Guarantee.
In 2024, the Expert Panel consisted of the Chair of the Guarantee, Matt Cole, Head of Fuel Bank Foundation, representatives from the UK’s consumer advocacy groups, and Energy UK.
Areas of particular focus for the panel were how signatories:
- Demonstrate the steps and activity underway to ensure their company is prepared for increased volumes of customer switching in 2024 and,
- Show how they embody the ESG principles of Speedy, Simple, and Safe into their service provisions.
As a result of these hearings, the ESG has produced a Best Practice Paper, highlighting areas where signatories go beyond what is expected of them and suggesting improvements that the industry could make to drive up standards across the sector.
Contact Us
Our members provide the Energy Switch Guarantee directly to customers. If you have recently switched your energy supply or tariff or are in the process of moving to a new tariff under the Energy Switch Guarantee and have a query, or wish to report an issue, you should first contact your supplier.
If you are not satisfied with the way in which your query has been handled by your new energy provider, you can ask the Ombudsman Services: Energy to investigate. We do not have the powers to adjudicate on disputes or overturn decisions made by the Ombudsman or your energy provider. For any enquiries, please email admin-energyswitchguarantee@energy-uk.org.uk.
Media Enquiries
All enquiries should be directed to our Media Team by emailing press@energy-uk.org.uk.